Thx for the input guys.
Ghosth,mini cuz I'm building a flying chair/simpit. The link was for 1 I'm considering.
I've found 1 thats 9"x4"fits in the palm of your hand

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What i wanted to know was reliablily and use issues.
I have several boards now,Zboard for gaming,M$ wireless and a generic for second machine.
The idea was to find a small 1 that I can mount either behind my JS or throttle.I have mounts for hotas now on chair but the keyboard is kinda the weak link and I thought a mini would solve the problem.
I really only use KB to BS and such,but it's still needed!!!