On Tuesday, 4 November 2014 21:38:14 UTC+2, Vaughn wrote:
On 11/4/2014 1:48 PM, Mike the Strike wrote:
Show me a soaring bird without movable tail surfaces, then I might consider it!

Mike

Well yes, but by that logic all gliders should be self-launchers
propelled by wing flapping.

Vaughn

Touché!