Bill,
it is a RoJet.40 side exhaust.
Randy,
I had 3 choices on the paint scheme: 1) Red Bull; 1) Red and Yellow Drone; 3) Royal Navy.
The Red & Yellow is the most visable with a bad background, but I just love the newly repainted airplane with the Royal Navy colors. I will probably curse it when there are trees in the background, but hey, I flew one airplane for almost 5 years that had a black fuselage.