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Brainteasers

July 15, 2004

Brainteasers
Interactive Quiz #83:
Oh No, LAHSO

LAHSO means Land And Hold Short Operations, and it's the FAA's controversial way to squeeze more air traffic onto the same old runways. Your task is to, well, land and hold short of other traffic. Got LAHSO? Hope so.


INSTRUCTIONS: Answer the questions as best you can, then click on the "Score my quiz answers" button to see your score and read the explanations. If you don't like your score the first time around, you can change some of your answers and resubmit. To get the most out of this quiz, we suggest you keep trying until you get a perfect score.

NOTE: When more than one answer is true, only the most complete, correct answer will be scored as correct. The answers are assumed to apply within the United States unless otherwise noted.


1. After a tiring, VFR, cross-country flight in your Comanche 250 (single-engine, retractable-gear), you hear the control tower say, "Comanche Two Five Papa, cleared to land runway 27, hold short of runway 36, traffic a King Air departing runway 36, wind 090 (degrees) at five (knots)." What's wrong with this scenario?
a. You'd never own a Comanche but would look good in a King Air.
b. The wind is too strong for this LAHSO restriction.
c. LAHSO separation cannot be applied between a landing aircraft and a departure.
d. LAHSO restrictions must be prefaced with the phrase, "If able ..."
e. LAHSO is strictly limited to IFR operations.
2. Same airport as in the previous scenario. The weather is VFR except the wind is calm. You passed through a rain shower a mile out on final, which washed the bugs from your windshield, allowing you to see that the runways appear to be wet with standing water in places. The temperatures are well above freezing so there's no ice. Is the tower controller allowed to issue a LAHSO restriction to you to land and hold short of an intersecting runway when runways are wet?
a. Yes, provided there's no standing water.
b. Yes, provided your aircraft is equipped with anti-skid brakes (aircraft equivalent of ABS).
c. Yes, but only to jets.
d. No. Never.
3. Which group of aircraft cannot accept a LAHSO restriction to land and hold short of an intersecting runway?
a. Any aircraft flown by a student pilot.
b. Any heavy aircraft (over 255,000 pounds).
c. Any aircraft without thrust reversers.
d. Any aircraft not listed on the FAA's current list of aircraft approved for LAHSO.
e. Air carriers.
4. LAHSO restrictions can include a clearance to hold short of:
a. Intersecting runways only.
b. Intersecting runways, taxiways, jetways, and amways (ICAO term).
c. Intersecting runways, taxiways, or some other designated point on a runway.
d. Any landing or departing traffic if the tower controller deems rollout distance (VFR) is adequate.
5. To conduct LAHSO properly, the pilot must understand the acronym ALD. Now that we've casually tossed it around, what does it stand for and where can ALD information be found?
a. Available Landing Distance. Found in the special notices section of the Airport/Facility Directory (A/FD) and in the U.S. Terminal Procedures Publications.
b. Alternate Landing Distance. Found in the special notices section of the Airport/Facility Directory (A/FD) and in the U.S. Terminal Procedures Publications.
c. Approved Landing Distance. Found in the special notices section of the Airport/Facility Directory (A/FD) and in the U.S. Terminal Procedures Publications.
d. Available Landing Data. Found in the special notices section of the Airport/Facility Directory (A/FD) and in the U.S. Terminal Procedures Publications.
6. When a pilot accepts a LAHSO restriction such as, "Cleared to land runway 23, hold short of runway 28," the PIC may not execute a go-around (a.k.a., rejected landing) because the tower bases all separation on the aircraft landing to a full stop.
a. True
b. False
7. Pilots should acknowledge all LAHSO clearances by (choose best answer):
a. Reading back the phrase, "Hold short."
b. Reading back the entire hold-short clearance.
c. Reading back the entire clearance but only when ATC says, "Read back hold short."
d. Clicking the microphone button twice.
e. Saying, "Roger," your callsign, and "Traffic in the area, please advise."
8. In order to issue a LAHSO clearance to GA aircraft the weather must be at least:
a. 1000-foot ceiling and visibility 3 nm.
b. 1500-foot ceiling and visibility 3 nm.
c. 2000-foot ceiling and visibility 5 nm.
d. 1000-foot ceiling and visibility 3 sm.
9. Landing a Comanche with the gear up will aid in reducing landing roll but is not a recommended method for meeting LAHSO restrictions (see photo below). To aid the pilot, Land And Hold Short Lights may be installed at airports to indicate the hold-short point on LAHSO-approved runways. The lights consist of:
a. A row of pulsing yellow strobes installed across the runway at the hold-short point. Where installed, the lights will be on any time LAHSO is in effect. These lights will be off when LAHSO is not in effect.
b. A row of alternating and pulsing red and white lights installed across the runway at the hold-short point. Where installed, the lights will be on any time LAHSO is in effect. These lights will be off when LAHSO is not in effect.
c. A row of pulsing white lights installed across the runway at the hold-short point. Where installed, the lights will be on any time LAHSO is in effect. These lights will be off when LAHSO is not in effect.
d. A single pulsing white light installed beside the runway at the hold-short point. Where installed, the light will be on any time LAHSO is in effect. This light will be off when LAHSO is not in effect.


Gear-Up Landing
 
Gear-Up Landing


10. LAHSO shall not be utilized if wind-shear advisories are included on the ATIS broadcast. At locations not served by an ATIS, or where the ATIS is out of service, there cannot have been any reports of wind shear for ( ___ ) minutes prior to the issuance of a LAHSO clearance.
a. Five
b. Ten
c. Fifteen
d. Twenty