m_b,
I forgot that the first one had a Saito 72 on it. Made for a nice flying plane. it would slow down a little faster than with the 2 stroke. Managed to loose both of them when the power lines suddenly moved closer to the field when I was in a full power dive to a low level run across the field. You would think I would learn after the first one.

mike_1,
Mine was faster with the 2 stoke than the Venus I have now with the same engine. Venus has been clocked at over 110 MPH if this info helps.

Ed M.