[NSRCA-discussion] gassers

[vicenterc at comcast.net]

I helped to build the Abbra gas for a friend.  We used the ZDZ 40 (non F3A version) hard mounted initially but after fluttering one aileron it was decided to install a custom made soft mount. The plane was 11 lbs 5-6 oz.  The Abbra is very light airframe and we could not make the 11 lbs.  Therefore, meeting weight is probably your first issue.  Second issue is noise.  I think we were OK using the soft mount and the ES pipe header for gas engines.  However, I never had chance to measure noise levels.

 I flew the plane 3-4 times and it was evident that the power was was limited compared with the Abbra  glow version in doing the old Master schedule.  I believe that prop selection could be part of the problem but never had chance to try other props.  I think that gas is a good option in the lower classes.  Base on this single experience, it could be a problem for Master or F3A.

--
Vicente "Vince" Bortone

-------------- Original message -------------- 
From: "Bob Wilson" <wilsorc at gmail.com> 

Probably a stupid question, but has anyone had any success running gas engines in pattern ships?  The Brison 2.4 and 3.2 are real powerhouses for example.

Bob
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