Shemphoward, I have been into modelflying for many years so I respect both Clearence Lee and George Aldrich and Peter Chinn for what they know, I have read their articles in RCM and ModelAirplaneNews from the day I began flying R/C models in 1975. And I regret the passing of George Aldrich a few month ago.
I built his Nobler 25 years ago when I was into CL-flying it was a Top-Flite kit from the early sixties found on a swapmeet.
As for ABC engines contra ringed engines....I agree tha a ringed engine has somewhat less compression when you turn it over by hand ...but that doesnīt mean it is harder to start by hand!
When K&B intruduced their .40 pylonracing racing engines in the middle of the nineteen seventies they were real hard to turn over by hand, they squeeked and recquired a engine starter to really get going......but we have had come a long way since then!
Todays modern sport ABC engines ( OS, Irvine, Webra, ASP, MVVS, Magnum, Super-Tigre to name a few) are real nice to just flip start! As for the MVVS line of engines, all 2,0cc-25cc are all ABC engines ( except the 2,5cc ( .15) diesel which has a cast iron piston running in a steel cylinder, and they are easy to start by hand. Though I do not recommend hand starting an engine because of the danger involved, I think itīs a god way to realy "know your engine"! But keep the fingers away......
I donīt know how you do, but I always ( try too at least) flipstart my new engines the first time I start them!
I always flip start my MVVS 25cc ( 1.50) singel ABC when I fly my SIG CAP 231 EX, and it starts on the first or second flip everytime! Naturally I would use my Sullivan starter if I could but the engine is just to big.... so I flip start it. Even if that big MVVS would have been a ringed engine I think it would have been difficult for my starter to cope with it.
I have been importing MVVS engines to Sweden the last 10 years
so if you want to order MVVS engines, spares, get advise help ...feel free to contact me at my website:
http://hem.passagen.se/airracing
or contact me by email:
[email protected]
I will make an English translation as soon as possible.
Regards!
Jan K