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Three-Seated Wonder Plane

Right Mouse- Veer Upwards
Shift/Space- Small Veer up and Forward Thrust
S Key- Back Up

Detailed Controls (Thanks, Totally Not a Scammer!)
Holding right click and space together makes the plane go upwards. Holding shift and space together stabilizes plane movement, minimizing flight inaccuracy. A and D turn the plane sideways, it is best to hold right click and space together whilst tilted so that the plane flies left or right. Holding right click in midair enough can make the plane go into a nose dive, even when it is faced vertically.

Thanks Yogscast for spawning it (Duncan really should have tried to get in it first)!
Pretty hilarious when used correctly, so have fun!

https://youtu.be/2z2RsKvyZ2s?t=138
EDIT: Since the original conception of this miraculous aeronautic breakthrough, it has gained a considerable number of votes from my fellow Garry's Mod players. Along with it, come the reposts and other shenanigans. Just note that: this is the ORIGINAL Three-Seated Wonder Plane!