On Mar 4, 5:48*pm, wrote:
Is there any way technically and legally to add a fifth strap to an ASW 15? No matter how tight I pull the lap belts they ride up when ridge flying allowing the shoulder straps to become loose. My head is pretty close to the canopy and a stiff jolt can lead to head banging if the harness becomes loose. I also know having the lap belts out of position can be very dangerous in the event of a crash and would love to alleviate these problems. mdfaddenatgmaildotcom

It depends on how the glider is certificated. If it has a Special
Airworthiness Certificate issued for the operation of an experimental,
racing aircraft like many early European imports, then an A&P (or
perhaps even you depending on the specific verbiage in the Operating
Limitations that are part of the airworthiness certificate) can find
some stout piece of structure in an appropriate spot to add the fifth
point anchor. Seek the guidance of a reputable glider repair shop, use
good practices according to AC43.13, and it will probably be fine.

If it is type certificated and carries a standard airworthiness
certificate, then it is is more complicated but still doable. You will
probably need to do a form 337, for which you will need the counsel of
an A&P or IA.

Thinks like this are why I prefer to mess around with experimental,
amateur-built sailplanes. Once the Phase I testing hours have been
flown off, the usual operating limitations are typically no different
from those of any other sailplane. However, you can maintain, repair,
modify, and inspect it yourself.

Thanks, Bob K.
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