Uhhhhhhhhh................ I thought the idea was not exactly flat, but slightly tilted in at the top.
Put them in a test tank and you will find flat wings just hang there. Tilted wings flutter...
Type: Posts; User: hap
Uhhhhhhhhh................ I thought the idea was not exactly flat, but slightly tilted in at the top.
Put them in a test tank and you will find flat wings just hang there. Tilted wings flutter...