I think I got the rules right :
1- an american plane
2- another american plane
3- I'm thinking of an american plane
5- yet another american plane
and yes I don't know how to count.
I agree with you 100%.  It's really a shame that most of the membership doesn't actually read about the history of flight. But, let's wave the flag all we can.   
 
 1. The Wright Flyer. Started it all. 

2. Me-262 For obvious reasons.

3. P-51D  Marriage of Laminar flow and mission requirements.  Perfect story of time and place.

4. Sopwith Camel  Highest scoring aircraft in the first world war.

5. Junkers J.L.6      First all metal monoplane.
