Small 2-cylinder, two-stroke engine that gave only 3 HP. There is one at the Int’l Helicopter Museum mounted on the Westland Wisp.

From Appendix 6: UK / India ?. This engine is already mentioned in the main text. Now we have an application for this small 2-stroke engine with two cylinders.

“The Westland Wisp”

-It is installed on the remote-controlled observation helicopter.