Two things:
- Andromada is based on Lockheed C-5 Galaxy.
- Rustler is quite identical copy of North American P-51 Mustang
The GTA wiki can't tell you good information always.
By the way, where's Sea Sparrow?
Other by the way (lol), where is Hunter?
Hey,
I didn't put up the Sparrow and Hunter because they will not be in-game.
Oh, okay then

But I'm really wondering what plane is Sea Sparrow based on, I mean, how does Bell 47 with floats looks like

I actually did a self research and didn't really use GTA-Wiki. I will replace V-141 with C-5 Galaxy since C-5 looks more alike.
Oh, I see. I'm sorry that I thought you used GTA wiki, because the text seems same as it is in GTA wiki (for some planes)
But for Rustler, P-51 is not fully identical, since there are a lot of planes that look like Rustler, Spitfire for example, but in my opinion I think P-40 looks more identical. If you want me to replace it anyway, provide me a good reason for it 
Thanks
-Gleb[/color]
Well, I think P-51 resembles Rustler more than P-40 does.
Look at this picture (P-51 Mustang):

Compare (Rustler):

Look at this picture (Curtis P-40 Warhawk):

Compare (Rustler):

I think P-51 Mustang is more similar to Rustler than P-40 Warhawk.