Silhouette challenge

[SincoTC]

I'll let you get some rest and catch up with you later

Thanks mate, getting on for 1am here, gotta be up soon after five, so I should just get my usual four hours in, I'll still listen to the radio though, as it's not a continuous ZZZzzzzzz

I take it you're at home today keeping an eye on your boy, have a good one, catchya later!!

Parting clue! The challenge aircraft was notable for having the first example of a particular design feature for its parent country!

G'Nite