If a plane lands vertically in a strong headwind, what will the pilot do to exit the runway? If he increases the speed, wouldn't that be dangerous (I mean he will fly again)?
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28$\begingroup$ Go somewhere else without winds that high. $\endgroup$– Ron BeyerFeb 15, 2018 at 19:29
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$\begingroup$ What if it is a large scale storm and you have no fuel to go to an other airport. $\endgroup$– MehdiSep 28, 2018 at 20:22
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2 Answers
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If you're in a situation where you can "land vertically" (I assume that means you are landing into a headwind equal in velocity to your landing airspeed), then it's simply dangerous for an aircraft to be anywhere on the ground without being properly tied down. Even if you were able to turn the aircraft, it would probably be lifted into the air again as the wind caught the fuselage broadside.
answered Feb 15, 2018 at 19:36
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2$\begingroup$ Then how do An-2's operate at all? They can takeoff and land on a blown kiss. $\endgroup$ Feb 15, 2018 at 21:22
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2$\begingroup$ @Harper I can't find anything about An-2s being good at landing in headwinds as fast as their airspeed. Keep in mind that their groundspeed isn't low because the plane is moving slowly -- the groundspeed in this question is low because you're landing in extremely high winds. $\endgroup$– NicFeb 15, 2018 at 21:33
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1$\begingroup$ @NicHartley : But the An-2 can fly so slowly in a slight breeze that it's basically almost hovering. However, it might have to do with the angle of attack. The extreme slow flight the An-2 is famous for, is actually a near-stall, with the aircraft working more like a parachute or paraglider, being able to land almost like a parachute in the event of an engine failure. It can fly faster than that on takeoff or landing. $\endgroup$– vszFeb 16, 2018 at 10:38
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$\begingroup$ @vsz Yeah, but that's even more of a different situation. When you glide like a parachute, the moment you touch down you lose all lift. The same is not true with headwind. $\endgroup$– LuaanFeb 16, 2018 at 16:12
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2$\begingroup$ I'd imagine the An-2 puts its flaps up after landing, too. $\endgroup$– ceejayozFeb 16, 2018 at 16:17
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I landed a C-152 at KMHV (Mojave, CA) with AWOS saying winds were 38kt gusting to 45kt straight down runway 8. It was not a vertical landing but the ground effect lowered the landing ground speed to ~15kts. Why? Because the pilot side door opened in moderate turbulence at 7500 MSL and would not latch, and was banging in the turbulence and freezing my head since OAT was ~10F. (Hard to fly the plane while holding the door closed!) I taxied very slowly with the controls in the 'keep-it-from-flying' orientation, parked facing the wind, bent the door frame back by hand to get the door to latch, taxied back to 8 very slowly, advanced the throttle and departed with a 100 ft roll.
EDIT: 20180405 ...
I just look at the control surfaces to make sure they are forcing the plane DOWN given the direction the wind coming from... Here is a better description:
From the AOPA Windy Flights Page
Taxiing Technique:
Taxiing in a crosswind requires additional control inputs to keep the airplane's tires well planted and, in a strong crosswind, to prevent a wing or the tail of the airplane from being lifted by the wind. It can be confusing remembering which way the ailerons should be positioned during a crosswind taxi, but this memory aid may help: When you hold the yoke, your thumb points up; when the wind is coming from in front and to one side (a quartering headwind), point your thumbs into the wind. When the wind is coming from behind, point your thumb away from the wind. So, for instance, if the wind is coming from the left rear ( quartering tailwind), deflect the yoke to the right (thumb points right and away from the wind).
To remember the elevator inputs during a crosswind taxi, remember that when taxiing downwind (in the same direction as the wind is blowing), the elevator should be down. When taxiing upwind, the elevator should be neutral (for tricycle gear airplanes) or up (for tailwheel airplanes). Watch the movement of wind socks, flags, grass, etc., as you taxi, and change control inputs appropriately as your taxi direction changes.
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13$\begingroup$ I think they key bit that answers the question is the
controls in the 'keep-it-from-flying' orientation. It would be good if you could expand on that by editing your answer. $\endgroup$– Notts90Feb 16, 2018 at 11:32 -
1$\begingroup$ Depending on the aircraft, mind you, consider what would happen if you suddenly jammed the controls to
keep-it-from-flyingat Vr. I expect if you could land with no groundspeed there would be, in some airframes, a real risk that you might plant the nose of the aircraft right into the dirt. $\endgroup$– J...Feb 16, 2018 at 19:18