RE: 1/3 Scale Nieuport 11
Shrky,
There is a Dawn Patrol again this year in MollalaOR, Aug 15-17.You should go as it's a great event and this year could possibly be the last.
Regarding the use of a Briggs&Stratton engine,I would recommend AC of @16lbs for the 34cc and 20lbs for the 40cc.They won't handle a lot more than that,although I did fly my 23+ lb DVII with the 40cc.I may have a 65cc Stihl 4-stroke flying at the Dawn Patrol event so you could check that out.
J