Tell you the truth I have no idea, except #4 is no doubt the Bell Model 280.
EDIT: Oh, and #8 is actually a continuation to #7, front views of the Iroquois Warrior concepts.
Isn't number 9 a Kellett-Hughes heavy-lifter?
Digging up some more. They are all existing designs:
More. Keep in mind these have been in my archives for years, which have been moved around several times, which means the penciled details will smear on the paper:
The Boeing-Vertol Model 894 "Firehawk" is beast! You're an epic artist!
Vince Johnson - A merciless enemy but a powerful ally.
Here I have the best illustrations I can come up with for the Brantly B2J10 and a Gliddon S. Doman project that is still unclear. Could possibly be the Berlin-Doman BD-19.
Much thanks, Vince!
Rainbow Dash's modified Aerospatiale SA.341 "Gazelle" that appears in one of my upcoming MLP fan fictions. You heard me.
No serials and insignia yet, because I haven't given the enemy a name yet.
Rambo III crossover?
Err... minor influence.
Cool pics, Sting!
I really like this one, good job!
Dear Princess Celestia,
Today I learned that nopony kicks ass without tanker gas. Nopony!
Your faithful student,Fluttercopter
Might as well add this here:
Man, haven't updated in a while.