World's Leading Independent Aviation News Service
Volume 25, Number 13b
March 28, 2018
 
Forward This Email
  • Text size:

    • A
    • A
    • A
help
AEA: Aspen Introduces Low-Cost EFI
 
Paul Bertorelli
 
 

At the AEA show in Las Vegas, Aspen Avionics unveiled a new, under-$5000 dual electronic flight instrument that combines an attitude indicator and a DG/CDI into a single display. The non-TSO’d E5 includes Aspen’s trademark backup battery and onboard GPS system, an air data computer and integrated ADAHRS. Aspen says the new instrument can be upgraded to a version that integrates with TruTrak’s emerging Vizion autopilot for an all-in price of under $10,000.

With the E5, Aspen has clearly declared its intent to compete with Garmin’s G5 EFI, a hot-selling self-contained display that evolved from the company’s experimental line. Aspen’s version, the company says, has redesigned electronics and new glass, providing faster processing speed and a more vivid and readable display. It’s intended to be a drop-in replacement for traditional vacuum instruments of the same size. It has hooks to interface with many legacy autopilots. The company says the E5 is upgradeable and customizable and can be upgraded to the TSO’d Evolution Pro series.

In addition to the backup battery, Aspen says the installations will not require a backup attitude indicator of any kind and all of the components are integrated into the display itself. Installations will provide a legal path to remove legacy vacuum system. The display is a bright 6-inch TFT active matrix LCD.

AVweb will have a video report on the E5 for our continuing coverage of the AEA Convention in Las Vegas.

The Great Avionics Inflection Point
 
Paul Bertorelli
 

I never know quite what to expect when I cover the Aircraft Electronics Association show, which opened Monday in Las Vegas. As shows go, it’s decidedly non-mega, with only about 130 exhibitors, many of them trade-to-trade selling tools and equipment shops are interested in but our readers aren’t.

This year’s show illuminated some trends that suggest that the avionics market is at an inflection point. Or maybe a continuing inflection point. One is Aspen’s introduction of the E5 EFI, a second is Garmin’s TXi displays migrating into older Citations and a third is the appearance of a couple of helicopter autopilots. OK, a fourth is Aspen and TruTrak teaming up on a EFI autopilot/combination deal.

First the E5, which, as our report on the product indicates, is Aspen’s answer to Garmin’s G5, a self-contained EFI that’s found strong market appeal for its combination of price and capability. The G5 came out of Garmin’s work in the experimental market and swung upscale for application in spam cans. Now Aspen wants in.

Interestingly, during the press luncheon at AEA, Aspen’s John Uczekaj said that the avionics market is undergoing a sea change that customers are beginning to understand but which shops don’t. Yet. He said non-certified gear built by Garmin, Dynon and a host of smaller companies is so well regarded for having sophisticated capabilities and bargain prices that now certified avionics are seen as hidebound, expensive and minimally capable. “It’s definitely a disadvantage to be certified,” he said.

This bodes well for avionics buyers because with the FAA focusing more on performance-based review rather than specific defined certification hoops, Uczekaj thinks buyers will see a profusion of capable new equipment at prices much lower than we’re used to. And, of course, we’ve already seen it from Garmin and Dynon.

In a way, Garmin got a little swamped by the wave it started. It edged to the cliff of less expensive avionics when it aggressively developed a line of gear for experimentals, shrewdly applying its engineering prowess to products that performed well, but cost less. Dynon and EAA pushed the cart over the cliff with the surprise STC for the DA10. That was a real #$@$% moment when it was announced at Sun ‘n Fun just two years ago.

Last year, Garmin announced the TXi series of displays meant to replace the aging mid-market G500/600 line. But the company missed the boat on pricing. Those certified systems are still north of ten grand when the market is forthrightly saying it doesn’t want the expense or bother of certified equipment but is happy with boxes costing a lot less whose capabilities aren’t constrained by certification fences. The TXi products were just too long in the oven and now buyers have tasted some sweeter muffins. And thus, the $5000 EFIS, or thereabouts, ought to be the next big thing.

And that gets me to a company called Jettech, which announced that it’s putting the finishing touches on an STC to install the TXi displays in Citations. With their touchscreens, the TXi series are decidedly mid-market boxes and, in the old days, like 2015, not the sort of thing that would appear in jets or even turboprops, the fertile ground of G1000 conversions pushing well into the six figures. Garmin did foresee this market and has a TXi version certified to a higher software level, but it’s nonetheless worth noting that jets and turboprops are no longer limited to gold-plated avionics. I wouldn’t have predicted that.

Nor would I have predicted the nice little synergies of TruTrak and Aspen teaming up to offer an EFI and a highly capable autopilot for just $10,000. The last time I priced an autopilot it was in the $25,000 range. Fewer buyers are going to pay that anymore and I wonder if even the jet guys are thinking, hey, wait a minute. Sooner or later, someone is going to figure out that companies like Avidyne, Aspen, Dynon and others can put together a nice little developmental consortium to compete with Garmin. Otherwise, as individual companies, they're bringing knives to a gun fight.

Last, sitting through the AEA product intro, I made note of two helicopter autopilot systems. Helicopters? I don’t think I’ve ever written about helicopter autopilots because there just aren’t many. Garmin announced the GFC 600H, which appears to be, at least in nomenclature, an offshoot of its GFC 700 for fixed-wing aircraft.

But helicopters have complex flight dynamics and just based on the published specs, the GFC 600H looks quite sophisticated. It even has a level button. I wonder if the advent of saner certification standards coupled with advancing avionics technology made a helicopter cert more attractive than it would have been, say, five years ago.

TruTrak’s Andrew Barker said yeah, that’s definitely the case. Components like gyros and pressure sensors have become ever more capable and ever cheaper and with the FAA actually exercising restraint on certification projects, more of them are coming out of the ground than might have a decade ago. Literally.  

Another company, HeliTrak, also announced a new autopilot for the Robinson R44, a high-population piston helicopter. Interestingly, the technical talent came out of a company whose expertise is horizontal drilling—yeah, underground drilling. HeliTrak’s presenter pointed out that the technical problems of keeping a drill bit accurately tracking for a couple of miles through sand and rock is not dissimilar to autoflying a machine that’s trying to whirl itself to bits. HeliTrak’s system is a light but sophisticated autopilot whose certification is expected sometime in 2019.

 

Video: TruTrak Expands Autopilot Apps
 
 

TruTrak is adding new approved airplanes to its list of autopilot applications at the speed of heat. In this video shot at the Aircraft Electronics Association convention in Las Vegas, Andrew Barker gives AVweb a status report.

Lockheed Martin Unveils Drone Design
 
Mary Grady
 
 

Lockheed Martin has released concept images of a refueling drone it’s working on for a U.S. Navy competition. The MQ-25 “Stingray” design is under development at the company’s Skunk Works, and will compete with entries from Boeing and General Atomics. The Navy wants the drone to be capable of carrying 14,000 pounds of fuel to refuel combat jets, with a range of 500 NM, and it must be able to operate from an aircraft carrier. The contract is due to be awarded in September. The Navy has said it plans to buy the first four drones in 2023 and start to operate them from aircraft carriers in 2026. Ultimately, the Navy will operate a fleet of 72 of the refueling drones.

The drones will not replace piloted refueling aircraft in the military fleet. Boeing is working on a new tanker, the KC-46 Pegasus, that is based on the 767 airframe. The company says they expect to deliver 179 of the airplanes to the U.S. Air Force by 2027. The KC-46 will be a multirole aircraft that can carry up to 114 passengers, a payload up to 65,000 pounds or up to 58 patients. First deliveries are expected this year.

Healthy Pilot #7: Sensitive Gut
 
Tim Cole
 
 

The stomach is often called a second brain—connected, as it were, to the first brain by the vagus nerve. Although your stomach may play second fiddle, when it comes to your personal domain, it’s often supreme ruler. That’s why dealing with dyspepsia can be the first order of business prior to any flight. Matters of the gut are so important the FAA has placed “Stomach, liver or intestinal trouble” as item 18i on the Basic Med checklist.

For this installment of Healthy Pilot, we’ve once again turned to our friends at sister site University Health News, the health information mother lode sourced by America’s leading medical schools and hospitals.

UHN offers a free guide called Abdominal Pain that covers the major ailments of the alimentary canal, that wondrous collection of connected organs that transfers nutrients from food to the brain and other organs. From mastication at the top, to waste removal at the bottom, your gastrointestinal machinery processes the materials that sustain life. It offers pleasure when you tuck into a good steak, and pain when things go awry.

Dreamstime

Here are just some of the issues we humans have to contend with. The disorders listed may be merely annoying, or persistent, painful conditions that need medical attention.  A quick review may offer talking points for you and your doctor.

Acid Stomach

Gastro-esophageal reflux disorder, or GERD, is very often the first telltale signs of a sensitive gut. The sphincter at the bottom of the esophagus gets a little loose over time and stomach acid backs up into the plumbing above it. You’ll notice this heavy, burning sensation, particularly at night. Often, relieving symptoms is nothing more complicated than elevating your head with a second pillow.  If GERD makes an infrequent visitation, tamping it down with an antacid might resolve the issue.

More persistent cases of GERD may need an over-the-counter omeprazole (trade name Prilosec; others). But there are side effects to these so-called proton pump inhibitors (ppi), so be advised. GERD that’s not easy to resolve requires a doctor’s attention, and the prospect of a closer inspection using an endoscope (think bore scope for the gut).

The stomach is the gut’s epicenter, the tool that quietly breaks down masticated food into the gruel that gets further processed downstream. The classic “stomach ache” can be any number of things—a microbial infection from tainted food, gas or bloating from overconsumption, or, more seriously, gastritis, an inflammation of the stomach lining. UHN advocates placing limitations on caffeine, alcohol, and salty foods if gastritis is suspected. The most common symptoms of gastritis are upset stomach, indigestion, and pain in the upper abdomen that can radiate to the back. Other symptoms are belching, nausea, vomiting, loss of appetite, a feeling of fullness, or burning sensations in the upper abdomen.

Treatment for gastritis will depend on the cause. If H.pylori is the culprit, antibiotic drugs will be prescribed. For most types of gastritis, drugs to reduce stomach acid are also prescribed to promote healing.

Ulcers

Stomach ulcers are not uncommon from middle age and beyond. A peptic ulcer is a sore that forms in the lining of the stomach (gastric ulcer) or the first section of the small intestine (duodenal ulcer). Gastric ulcers can occur anywhere in the stomach but are most common in the lower part of the stomach (called the antrum). Duodenal ulcers occur in the first few inches of the small intestine (the duodenum).

Ulcer symptoms usually begin with a burning sensation in the upper to middle abdomen within one to two hours after a meal. Other symptoms of an ulcer may include:

  • Pain that feels like a dull, gnawing ache
  • Pain that is intermittent or constant, lasting for days to weeks at a time before subsiding
  • Pain that strikes in the middle of the night, or any other time the stomach is empty
  • Pain that decreases after meals

Ulcer treatment can be highly effective. The three goals to treat ulcers caused by bacteria are to reduce stomach acid, protect the stomach lining, and kill the bacteria. This triple therapy allows the ulcer to heal and lowers the chance that it will come back. Antibiotics are used to destroy the bacteria. Reducing stomach acid is generally accomplished with short-term use of a proton pump inhibitor (see above), plus sucralfate or bismuth, typical medications to protect the stomach lining.

Liver, Pancreas, Spleen – the Mid-Gut

The liver, pancreas, spleen normally cause very little trouble, quietly cooperating to deliver fluids to aid in digestion, emulsify fat or cleanse the blood.

If there is a glitch in this well-operating system, the culprit is usually the gallbladder. The gallbladder is a small, pear-shaped pouch beneath the liver. The liver produces bile (a combination of water, acid, cholesterol, bilirubin, and lecithin), to digest fats in the small intestine. As the bile is produced, the gallbladder stores it until needed. When you eat fat, the gallbladder sends bile through a system of tubes (called ducts) leading into the small intestine, where it breaks up fat.

Dreamstime

If there is too much cholesterol or bilirubin in bile, it can form crystals that clump together into gallstones. A problem arises when a gallstone gets caught in a duct and blocks the normal flow of bile. This causes inflammation of the gallbladder, a condition called cholecystitis.

Symptoms of gallstones

  • Severe pain in the upper-right side of the abdomen (called biliary colic) that waxes and wanes and lasts from 30 minutes to several hours
  • Pain that radiates to the back, between the shoulder blades, and under the right shoulder
  • Nausea or vomiting
  • Sweating, fever and chills
  • Clay-colored stools
  • Dark-colored urine

Common Pancreatic Problems

Pancreatitis is an inflammation of the pancreas that can be either short-lived (acute) or long lasting (chronic). While chronic pancreatitis tends to be more serious, either type can cause dangerous complications. Excessive alcohol is known to cause pancreatitis. Or a gallstone from the gallbladder may lodge in the bile duct in such a way that it blocks the pancreatic duct, trapping digestive enzymes inside. The enzymes may begin to digest pancreatic tissue, leading to inflammation.

In addition to gallstones and alcohol, acute pancreatitis can also result from certain types of prescription drugs, which raise the risk of pancreatitis.

Symptoms of acute pancreatitis include pain in the upper abdomen that comes on gradually or suddenly and lasts a few days. The pain may radiate to the back. Sometimes pain worsens after eating. Other symptoms are nausea, vomiting, fever, and rapid pulse. Severe cases may impact the heart, lungs, or kidneys. With a chronic condition, symptoms include nausea, vomiting, weight loss, and greasy or oily stools.

Common Liver Problems

When liver tissue becomes inflamed, thickened, and scarred, it cannot preform its essential function. The body cannot survive without the liver processes.

Alcoholism damages the liver by impeding the metabolism of protein, fats, and carbohydrates. It is the leading cause of cirrhosis followed by hepatitis C in the U.S. and hepatitis B worldwide. Other causes for cirrhosis are rare.

In the early stages there are few symptoms. As it advances, symptoms of fatigue, weakness, weight loss, abdominal pain, and spider-like veins on the skin appear. Eventually, edema (swelling) affects the legs and trunk, and the skin and eyes take on a yellow tone from jaundice.

Hepatitis is an inflammation of the liver generally caused by viral infection. Certain medications, such as acetaminophen (Tylenol), can cause drug-induced hepatitis. An inflamed liver becomes swollen and tender, which can impair or permanently damage the organ.

The hepatitis viruses are identified as A, B, C, D, and E. Any of these viruses can cause short-term (less than six months) inflammation of the liver. Hepatitis A, B, and C may cause no symptoms or just flu-like symptoms (fatigue, nausea, fever, loss of appetite, stomachache, and diarrhea). Some people have dark-yellow urine, light-colored stools, or yellowish eyes and skin. Hepatitis A, B, and C can be detected with a blood test.

Hepatitis A is spread by personal contact or consuming food or water contaminated with human saliva or feces from someone infected with the virus. This is a problem in parts of the world with poor sanitary conditions so travelers in such regions are at risk. Hepatitis A can be prevented with a vaccine.

Hepatitis B can be contracted through contact with the blood, semen, or other body fluid of an infected person. People who travel to countries where hepatitis B is common are at risk of infection but there is a vaccine to prevent infection. Hepatitis B infection can resolve on its own without any treatment. However, sometimes the infection is chronic, and leads to serious liver damage, like cirrhosis.

Hepatitis C is transmitted through contact with the blood of an infected person. This generally occurs when drug users share needles. Hepatitis C is not spread by casual contact. People who had blood transfusions before 1992 are at risk because prior to that there was no test to check blood for the virus. The infection may resolve itself within a few months, but about 75 percent of patients become chronic.

Small Intestine Problems

The small intestine is approximately 20 feet long and connects the stomach to the large intestine. It does most of the digestive work, breaking down food matter and absorbing the majority of available nutrients. Issues involving the small intestine can include the following:

Lactose intolerance: During normal digestion, lactose, the predominant sugar in dairy products, is broken down in the small intestine into glucose to be used by the body. An enzyme called lactase, produced in the small intestine, is responsible for breaking down lactose. In lactose intolerance, there is a shortage of the lactase enzyme.

Lactose intolerance is not dangerous, but it can cause great discomfort. Undigested lactose ferments in the small intestine or colon and can cause such symptoms as nausea, cramps, bloating, gas, and diarrhea. The symptoms usually occur about 30 minutes to two hours after eating or drinking foods containing lactose.

Lactose intolerance can’t be cured, but avoiding or limiting milk products manages it. Lactase enzymes are also available to prevent the symptoms for people who react to even small amounts of lactose and wish to continue eating dairy. These are available without a prescription.

Celiac Disease: An essential process in digestion is the absorption of nutrients from the small intestine into the bloodstream. Disorders that interfere with this are called malabsorption disorders, and one of the most common is celiac disease. This condition, also called sprue, is where damage to the small intestine impedes absorption. The damage occurs when the immune systems mistakes the protein gluten for a dangerous intruder and attacks it. This causes inflammation that irritates and damages the small intestine.

Symptoms of celiac disease

  • Chronic diarrhea
  • Anemia (iron deficiency)
  • Recurring abdominal bloating, gas, and pain
  • Weight loss
  • Bone and joint pain
  • Muscle cramps
  • Pale, foul-smelling stool
  • Behavior changes
  • Tingling and/or numbness in the legs
  • Fatigue
  • Mouth sores
  • Itchy skin rash (called dermatitis herpetiformis)
  • Seizures

If celiac disease is suspected, your physician can make the diagnosis with a blood test and possibly an endoscopic biopsy. The blood test can show whether the body’s immune system is making antibodies against gluten or other enzymes involved in the disease process. Antibodies are substances that are produced by the body to attack threatening invaders. Gene testing to help identify a genetic predisposition to the disease is also available.

The treatment for celiac disease is to avoid all gluten. Once gluten is removed from the diet, immune reaction to gluten is reduced and the inflammation resolves. The small intestine begins to heal, and absorption of nutrients goes back to normal. For older adults, the small intestine should be completely healed after two years on a gluten-free diet.

Large Intestine Problems

The large intestine, also known as the colon, is a multi-layered tube approximately 5 feet long that absorbs liquid from the waste material passed down from the small intestine. The bacteria that live in the large intestine take in any remaining nutrients in the stool before it moves into the rectum to be expelled through the anus.

Constipation: As undigested food passes through the colon, water is absorbed to form the solid waste (stool). If not enough water is removed diarrhea will result. If too much water is removed, the stool becomes hard, dry, and difficult to pass out of the body—constipation.

Many people believe they are constipated if they don’t have a bowel movement every day. In fact, the frequency of bowel movements considered normal ranges from three times a day to three times a week.

Constipation means passing small amounts of hard, dry stool, usually less than three times a week, and straining to have a bowel movement. Other symptoms are bloating, general discomfort, and sluggishness. Like diarrhea, constipation is very common and usually lasts only a short time. Even so, constipation accounts for about 2 million doctor visits each year in the United States.

Common laxative treatments

  • Bulk or fiber laxatives (Metamucil, Citrucel, Fibercon, and Benefiber) serve to hold water in the intestines and soften stool. Patients using these must drink at least eight glasses of fluid (water, juice, milk, coffee or tea) per day to avoid side effects.
  • Osmotic laxatives (Milk of Magnesia and MiraLax,) cause the intestines to secrete water into the colon to make stool soft. These also require adequate fluid intake.
  • Stool softeners (Colace and Surfak) provide moisture to the stool.
  • Stimulants (Correctol, Dulcolax, and Senokot) cause intestinal muscle contractions to help move the stool more quickly. Long-term use is not recommended.

A low-fiber diet, not drinking enough fluids, and lack of exercise are common causes of constipation. Many medications can cause constipation, including pain medications (opioids), antacids that contain aluminum and calcium, calcium channel blockers (for lowering blood pressure), anti-Parkinson’s drugs, antispasmodics, antidepressants, iron supplements, diuretics, and anticonvulsants.

Irritable Bowel Syndrome (IBS): About 10 to 15 percent of Americans suffer with irritable bowel syndrome (IBS). Characterized by symptoms such as cramp-like abdominal pain, bloating, diarrhea, and constipation, IBS can be uncomfortable and distressing. However, it does not cause permanent harm to the intestines, nor does it lead to intestinal bleeding or serious disease such as cancer.

What makes IBS worse?

  • Large meals
  • Wheat, rye, barley, chocolate, milk products, alcohol
  • Caffeine
  • High levels of fructose
  • Carbohydrates in foods like wheat, beer, garlic, onions, artichokes, asparagus
  • Sugar alcohols such as sorbitol, fruits, cabbage, beans, lentils, and soy
  • Insoluble fiber found in wheat and bran
  • Large amounts of fat
  • Women with IBS may experience more symptoms during their menstrual periods, suggesting that reproductive hormones can exacerbate IBS.

Inflammatory Bowel Disease (IBD): Inflammatory bowel disease (IBD) is a collective term for abnormal immune system activity in the intestines that leads to inflammation. The two major diseases are ulcerative colitis and Crohn’s disease.

Dreamstime

Ulcerative colitis causes inflammation and ulcers in the inside lining of the large intestine (rectum and colon). It affects just the top layer of the intestinal lining (called the mucosa). Crohn’s disease also causes inflammation, usually in the small intestine, but it can affect all areas of the gastrointestinal tract (mouth to anus). Crohn’s disease affects all four layers of the intestinal wall.

The exact cause of IBD is unknown, but some interaction between hereditary factors, environment, and the immune system is probably at work. It’s theorized that the body’s immune system reacts inappropriately to viruses or bacteria in the intestines. The immune system mistakes these for foreign invaders and launches an attack by sending white blood cells to the intestinal lining. This produces inflammation that becomes chronic, damaging the intestine. This reaction is thought to occur in people genetically predisposed to IBD.

The main symptoms of ulcerative colitis are cramp-like abdominal pain on the lower-left side and bloody diarrhea. Loss of appetite, weight loss, nausea, anemia, and fatigue also are common.

Crohn’s symptoms vary depending upon severity and which part of the intestine is affected, but generally include abdominal pain, diarrhea, and bloating. People with either type of IBD also can have symptoms outside the digestive system, such as joint inflammation (arthritis), eye inflammation, or skin, liver, or kidney problems. These symptoms are probably caused by the abnormal immune system response in these patients.

Diverticulosis and Diverticulitis: Diverticulosis is a condition where pockets form in the lining of the colon. Diverticulitis occurs when those pockets become infected and enflamed.

Half of Americans older than age 60 have diverticulosis, a condition where small pouches (about the size of large peas), called diverticula, bulge outward from the colon. Diverticulosis is not a disease in itself, but if the diverticula become inflamed or infected, it becomes diverticulitis and requires treatment. From 10 to 25 percent of people with diverticulosis develop diverticulitis.

Although the exact cause is unknown, it’s thought that diverticulosis results from a low-fiber diet. It is more common in industrialized countries, such as the United States, England, and Australia. It is uncommon in Asia and Africa, where people eat diets higher in vegetable fiber.

If diverticula become inflamed or infected, it can cause fever, pain or tenderness in the lower left abdomen, and a change in bowel function or blood in the stool. It is unknown why diverticula become infected, but it may stem from stool or bacteria getting caught in the pouches.

As diverticulitis symptoms can also mimic inflammatory bowel disease or infectious gastroenteritis, the doctor will likely perform a CT scan with contrast, to diagnosis the disease.

Diverticulitis is treated with antibiotics and pain relievers. A short stay in the hospital is sometimes required. In a few cases, diverticula burst and require surgery. Surgery may also be necessary if an infection is persistent or very severe.

Hemorrhoids: The word “hemorrhoid” is a medical term for the tissue cushions surrounding blood vessels in the anal area. What most consider a hemorrhoid when anal tissue prolapses through the sphincter muscle, exposing the delicate lining of the rectum. This can lead to bleeding, itching, and irritation.

Hemorrhoids can either be inside the anus (internal) or under the skin around the anus (external). The chief symptom of internal hemorrhoids is bright-red blood on your toilet tissue or in the toilet bowl. If the hemorrhoid protrudes through the anus, it may become irritated and painful. External hemorrhoids may not produce any symptoms unless a blood clot forms within the tissue. In this case, there may be painful swelling or a hard lump may form around the anus.

Increasing hemorrhoid risk

  • Straining to expel stools
  • Extended time spent standing or sitting
  • Chronic constipation
  • Passing hard, dry, small stools
  • Diarrhea symptoms
  • Laxative abuse

A diagnosis will require an examination of the anus and rectum and the doctor may need to use an anoscope (a lighted tube useful for viewing internal hemorrhoids), a proctoscope (which can be used to examine the entire rectum), or a sigmoidoscope (to view both the rectum and lower colon).

Careful cleansing of the anal area is also important, daily and after each bowel movement, while sitz baths (warm-water baths that cover only the hips and buttocks) may be soothing. Using cold compresses and topical creams on the area can ease pain. Procedures in the doctor’s office include tying off the hemorrhoid so it will fall off on its own or sclerotherapy, an injection that will shrink the hemorrhoid. Only about 10 percent of patients need more invasive surgery.

Sponsor Announcement
ALT
Over 25,000 Happy GAMIjectors Customers Can't Be Wrong!
GAMIjectors have given these aircraft owners reduced cylinder head temperatures, reduced fuel consumption, and smoother engine operation. GAMIjectors alter the fuel/air ratio in each cylinder so that each cylinder operates with a much more uniform fuel/air ratio than occurs with any other factory set of injectors. To speak to a GAMI engineer, call (888) FLY-GAMI, or go online for complete engineering details.
NTSB Reports On New York Helicopter Accident
 
Mary Grady
 
 

In a preliminary report released on Monday, the NTSB summarized its investigation so far into the helicopter accident in New York that killed five passengers on a sightseeing flight on March 11. The board says the pilot told them he provided a safety briefing before the flight, and told the passengers where to find the cutting tool on their harnesses, and how to use it. After spending some time taking photos and sightseeing around Manhattan, the pilot described how he initiated “a right pedal turn to begin to head south,” and he heard a low-rotor-RPM alert in his headset, then observed that engine pressure and fuel pressure warning lights were lit. Believing that the engine had failed, he began to look for an emergency landing spot.

The pilot told the NTSB he felt Central Park was too crowded, so he turned back toward the East River and made a distress call to ATC. Once he had established a glide, he tried to restart the engine, but was unsuccessful. He activated the floats at about 800 AGL. At this point, the pilot said he was "committed to impact," and, when he reached down for the emergency fuel shutoff lever, he realized it was in the off position. He also noted that a portion of the front seat passenger's tether was underneath the lever. As the helicopter continued to descend, he attempted to restart the engine. As the descent continued through 300 feet, the pilot said he realized the engine “wasn’t spooling up fast enough,” so had to continue the autorotation. The aircraft impacted the water at about 5 to 10 degrees nose-up. The cabin began to quickly fill with water, and then rolled inverted. The pilot said by the time he unbuckled his restraint, he was fully underwater. He was able to grab the door frame and pull himself out, surfacing about four feet away. No analysis is included in the preliminary report. The full text is posted online.

Sponsor Announcement
Request Your Complimentary Subscription to Avionics News || Aircraft Electronics Association
Request Your Complimentary Subscription to Avionics News
Thinking of an avionics upgrade? Wondering what the latest cockpit technologies are? What's new in the field of avionics and instrument systems? How do the aviation regulations affect how you operate and maintain your aircraft? You can find information on all of these topics by reading Avionics News, the monthly magazine of the Aircraft Electronics Association. And, best of all, it's a free publication for U.S. residents. Subscribe today by visiting AvionicsNews.net.
Trig Ramps Up ADS-B With Express Lane
 
Paul Bertorelli
 
 

With the 2020 ADS-B deadline rapidly approaching, UK avionics manufacturer Trig Avionics has leveraged its line of transponders and ADS-B Out solutions in a streamlined installation program the company is calling Express Lane. In this podcast recorded at the 2018 Aircraft Electronics Association convention in Las Vegas, Trig's Jon Roper told AVweb how Express Lane works.

Sponsor Announcement

Sky Ranch Engine Manual || Available at AVwebBooks.com
Sky Ranch Engine Manual
John Schwaner explains the operation, inspection, and maintenance of the Lycoming and Continental aircraft engines, with a detailed troubleshooting guide. This book focuses on the practical aspects for pilots and mechanics explaining why things go bad, how to repair them, and most important; how to keep them from failing in the first place. For more information click here or call 970 726-5111.
Sky Ranch Engine Manual

Book      $24.95
eBook    $21.95


For more information, call (970) 726-5111 or click here.
Question of the Week
 

Each week, we poll the savviest aviators on the World Wide Web (that's you) on a topic of interest to the flying community.

Visit AVweb.com to participate in our current poll.

Click here to view the results of past polls.

Sponsor Announcement
Subscribe to 'IFR' Magazine and Test Your Skills
Ready for a Challenge? Test Your Skills with IFR!
Guaranteed important reading for every instrument-rated (or soon to be rated) pilot, IFR speaks your language, understands your concerns, and shares your excitement for flying. It's the only no-holds-barred resource for pilots who have earned their instrument ratings. So get the one magazine written by, and for, instrument-rated pilots — IFR! Click here for details.
Home Contact Advertise Help
Unsubscribe Manage Subscriptions Privacy Policy