Flying in the new Litmonthalle Nalbach scenery kindly provided by Detlef Jacobi. Also shows how scaling in PicaSim allows you to adjust any of the planes in this case to reduce both the size and density of the Spitfire and Sopwith planes to represent lightweight indoor models.

Available in the Windows and Android versions:

http://www.rowlhouse.co.uk/PicaSim

It should make it onto iOS soon.