WWII Westland P.12 Delanne Lysander prototype ground support aircraft with a 4-gun tail turret.
https://s3-us-west-1.amazonaws.com/h...r_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...429#post158445
https://www.homemadetools.net/forum/...960#post187232
https://www.homemadetools.net/forum/...387#post219063
https://www.homemadetools.net/forum/...520#post219511
https://www.homemadetools.net/forum/...419#post211911