My Submission to the 25 part challenge -
A 6-part UAV meant purely for testing how an aircraft like this would fly.
The Night Owl's design features a features a Delta wing configuration.

Instructions

Be careful with altitude, this thing really doesn't like pitching quickly

If you want to land it, I recommend a parachute

Pictures

-Launched from XFA-110 "Maelstrom II", credit to AvalonIndustries

Information

It is not meant to be a realistic plane by any means, more like a fun challenge to reduce parts to the lowest I could and still making it look Decent.
It flies.... I just can't guarantee how well it flies for you. To me, the pitch could have been better if I allowed myself to pass 7 parts. Since it has such a low amount of parts and high speed, you can use this as a target practice aircraft that is one step above the drone shoot out mission in the game.

Please do not ask for a lower part count.
That's it for the description :P
Happy flying.