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#1
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I've just gotten bitten by the glider bug, but as a right arm amputee, I
am not sure of how to proceed given the challenges of flight control operation, primarily dealing with simultaneous flight stick and spoilers on final approach. Are there any other disabled glider pilots out there with similar challenges that might provide help and advice? Thanks, Allan |
#2
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Allan Smits wrote:
I've just gotten bitten by the glider bug, but as a right arm amputee, I am not sure of how to proceed given the challenges of flight control operation, primarily dealing with simultaneous flight stick and spoilers on final approach. Are there any other disabled glider pilots out there with similar challenges that might provide help and advice? Thanks, Allan Im my club, there is a glider, an ASK21, equipped for disabled persons, although not in the same way as yourself, but rather for persons having lost the use of their legs. However a part of its disposition may apply to your case. In this glider a lever on the left side, operated by the left arm, is used as a substitute for the rudder pedals. As the left hand in this way is needed for both rudder and spoilers, the spoiler lever has notches allowing to be left it in a given position without further intervention. This last disposition may be useful in your case. However when you have to move this lever, your left hand will leave the stick free, so it should be perfectly trimmed before that. This should be possible on an ASK21, where the trim lever is just on the left side of the stick, so you should be able to actuate both simultaneously with your left hand, but on all other gliders I have flown the trim is on a separate lever. Even gliders like the LS-X (1 X 8) or ASW24 with a kind of trigger on the stick allowing the trim spring to move freely and lock in the position where the trigger is released don't work really this way and need an action of the left hand on a left "reminder of position" in order to obtain a neutral stick in a given position. |
#3
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I've just gotten bitten by the glider bug, but as a right arm amputee, I
I heard a rumor about a one-armed man getting his multi-ATP. If the one hand is fast enough, there you go! Someone on this group also mentioned the idea of putting an extra notch for "half" spoilers in the Blanik L-13. I'm willing to bet the FAA would bend over backwards to help you and a mechanic and an examiner to make this happen. Please let us know how it turns out... |
#5
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Allan Smits wrote in message ...
I've just gotten bitten by the glider bug, but as a right arm amputee, I am not sure of how to proceed given the challenges of flight control operation, primarily dealing with simultaneous flight stick and spoilers on final approach. Are there any other disabled glider pilots out there with similar challenges that might provide help and advice? Thanks, Allan One of the other responses mentioned the hand control for the rudder for pilots who have lost the use of their legs. One of my good friends flies both power and gliders this way and, on final approach, has the same problem you do -- one hand too few. One hand is on the stick and one on the rudders. So how does he handle the spoilers? He has several notches of spoilers that he can cut in and leave there. It takes better piloting (or more runway) to deal with an infrequently changed spoiler setting, but it can be done. Wishing you good luck Allan, Martin |
#6
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Allan -
If you own the glider and can make modifications, you could benefit from some modern technology. As you probably know, modern military aircraft use buttons, etc. , on the control stick to perform many functions. A rocker switch on the stick could control your spoilers through a solenoid. Another could control the trim, if necessary. Others could control additional functions (gear?). Since these activities do not occur frequently they will not impose excessive loads on your battery. Ed Grens Allan Smits wrote: I've just gotten bitten by the glider bug, but as a right arm amputee, I am not sure of how to proceed given the challenges of flight control operation, primarily dealing with simultaneous flight stick and spoilers on final approach. Are there any other disabled glider pilots out there with similar challenges that might provide help and advice? Thanks, Allan |
#7
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"E. A. Grens" wrote:
Allan - If you own the glider and can make modifications, you could benefit from some modern technology. As you probably know, modern military aircraft use buttons, etc. , on the control stick to perform many functions. A rocker switch on the stick could control your spoilers through a solenoid. Another could control the trim, if necessary. Others could control additional functions (gear?). Since these activities do not occur frequently they will not impose excessive loads on your battery. I would not like to fly a glider where some control depends on the power of a battery to operate. Battery failures are the most common incident in the gliders in my club. Of course early preventive replacement may lower the rate, but in case of a defective new battery with an abnormal short lifetime, you can detect it prior to its failure to keep its charge. If I had to design from scratch some control disposition for people with only one hand, I thing I would like to have the three basic controls (ailerons, rudder, elevator) actuated by the hand, leaving the feet for trim and spoilers. E.g. the hand could actuate the kind of yoke you find on most light power planes, mounted on top of a stick with the 2 usual degrees of freedom. Tilting the yoke left or right would act on the ailerons, moving the stick left or right would act on the rudder, moving the stick back and forward would act on the elevator. Another possible disposition coming in my mind is a rotating handle like those found on motorbikes at the end of a standard stick, but in this case I can't chose which among handle rotation and stick left/right should operate rudder and ailerons. The most natural would be ailerons as usual by stick left/right and rudder by handle rotation, but you would probably not have a sufficient force to operate the rudder by direct mechanical transmission in this way. The tow hook release should also be operated by a button on the yoke or the stick. |
#8
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![]() The problem in making modifications to the construction of the aircraft is getting the modifications approved by the various authorities. Even simple modifications can be time consuming and costly to develop. Failure to do so may render airworthiness certificates and insurances invalid. There is a school of thought that says you should try to adapt the pilot to the aircraft not the other way round, as this enables the disabled pilot to fly other aircraft rather that a specially adapted one. I realise that this is not always the case. The pilot here should be encouraged to fly and learn the limits of what he can achieve with one hand until the time comes for the need to use two. Simply gripping the stick with the knees provides a simply way to the free the hand for other short tasks, but may not be very good for tasks such as airbrake and approach control. A useful contact is the British Disabled Flying Club at Website http://fly.to/bdfc At 14:18 28 August 2003, Root wrote: 'E. A. Grens' wrote: Allan - If you own the glider and can make modifications, you could benefit from some modern technology. As you probably know, modern military aircraft use buttons, etc. , on the control stick to perform many functions. A rocker switch on the stick could control your spoilers through a solenoid. Another could control the trim, if necessary. Others could control additional functions (gear?). Since these activities do not occur frequently they will not impose excessive loads on your battery. I would not like to fly a glider where some control depends on the power of a battery to operate. Battery failures are the most common incident in the gliders in my club. Of course early preventive replacement may lower the rate, but in case of a defective new battery with an abnormal short lifetime, you can detect it prior to its failure to keep its charge. If I had to design from scratch some control disposition for people with only one hand, I thing I would like to have the three basic controls (ailerons, rudder, elevator) actuated by the hand, leaving the feet for trim and spoilers. E.g. the hand could actuate the kind of yoke you find on most light power planes, mounted on top of a stick with the 2 usual degrees of freedom. Tilting the yoke left or right would act on the ailerons, moving the stick left or right would act on the rudder, moving the stick back and forward would act on the elevator. Another possible disposition coming in my mind is a rotating handle like those found on motorbikes at the end of a standard stick, but in this case I can't chose which among handle rotation and stick left/right should operate rudder and ailerons. The most natural would be ailerons as usual by stick left/right and rudder by handle rotation, but you would probably not have a sufficient force to operate the rudder by direct mechanical transmission in this way. The tow hook release should also be operated by a button on the yoke or the stick. |
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