RE: Need an engine
(97"/60cc to 100cc)
DA is a good powerful Engine with great support !! looking at my friend's P47 I'm sure the DA-85 would do the job,,
on the other hand you don't need the most expensive Engine and you do not want a cheap-O brand, my other friend has a First Place 90 (maybe it's a 95 ???) and it has been a very good engine so far, it has been flying for 3 years, and it's powerful for sure,,
see my friends P47 (106"/ 37 pounds, Carbon Bolly), look close and you will see the older Sachs 69cc,,,
Jim