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Old June 24th 18, 03:08 PM posted to rec.aviation.soaring
Karl Striedieck[_2_]
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Default When gliders fail in flight, but pilots manage to land


If a pilot gets in the air without elevator control all is not lost. For a flapped ship like an ASW-20 there are still three controls that affect pitch/speed: spoilers, flaps and ailerons (roll). The latter will control pitch very easily via varying bank angle. If the nose is going to rise above the desired pitch angle (a little below the horizon) put in some bank until the pitch up stops then roll out the amount needed to maintain a stable glide angle.

For a non-flapped ship, aileron and spoilers are available.

An extreme aft cg makes these alternate control options trickier.

KS

In the case of one spoiler opening in flight (happened to me-ASW-17) slowing to stall speed may allow it to fall closed and stay there if speed is kept low. When the airport is well in reach unload the stick a little to open the lose spoiler and open the connected one for a full spoiler landing.







On Saturday, June 23, 2018 at 5:56:07 PM UTC-4, son_of_flubber wrote:
Bruno Vassel recalls how the control stick broke off in a glider pilot's hand and how that pilot landed the aircraft safely (using rudder to turn and trim to control speed).
https://www.youtube.com/watch?v=kF0tTzvU8IM&t=411s

Another favorite scenario is 'one spoiler stuck open'... the pilot opened the other spoiler to match and landed promptly.

Spoilers frozen shut... slip to land.

What else breaks and what if anything could be done about it?