Good points.

I have had pilots open the spoilers instead of pulling the release at the
top of a winch launch. A warning here would be nice.

The 'Spoilers Open' alarm sounding means 'your hand is opening the
spoilers', since the other hand should/must be on the stick...let the
pilot figure out the rest?


It would create a problem if the pilot must move his hand from the spoilers
to the flaps to select a negative setting just after touchdown to maintain
aileron control. It would be a real nuisance to get a warning horn at that
busy moment.


This is a 'good thing', not a problem. If you're on the ground, a
'spoilers open' alarm can be ignored, just as I ignore the audible
stall warning horn on my ship. In fact I listen for it and worry if it
does NOT sound. Like checking warning lights for not being burned out.


Some gliders must start their takeoff roll with the spoilers open to augment
aileron control at low airspeeds. Again, it's a bad time to be distracted
by a audible warning. This is where a low airspeed lockout would be needed.

Ditto above, to me at least, I expect the alarm and want the alarm to
prove the alarm system is working. My stall warning on/off switch is
placarded as such, 'Switch on before takeoff' for that purpose I
believe.


I think the system would need three sensors to give a useful warning -
airspeed above a certain value, ring in hook and spoiler open.

Sure, that works well, then when they pop open just after you
release..... or after you forget to relock them after using them for
an in flight height reduction.... I have done this, it is
embarrassing!... at best.

I can't see how any of the proposed combinations could be a bad thing.
It just depends on cost to install, complexity and reliability I
guess. Heck, I don't even know how to sense the hand on the control
reliably! So a device to sense ring in or strain on hook boggles me. I
can see they would be expensive, tricky to do and likely cause some
paperwork for the authorities. But if they prevent one accident.....


Bill Daniels