ZDZ 50NG for Pattern?

[Bill Glaze]

Ed:
Gerry Dale, who used to compete in pattern, had a gasser of his own 
design.  He tried at least 3 engines in it, as well as structural 
modifications, trying to beat the ll lb. weight limit.  I believe he 
finally made it, just barely. If anybody on this list knows how to get 
hold of Gerry, I'd like to know.  (For Ed's sake, to keep him from the 
re-invention of the wheel)
The airplane appeared in RCM a couple of years ago, in plan form.  It 
was called l'Essence.  I saw it fly quite a few times.  Power seemed 
adequate, if not overwhelming, as I recall, for Masters class.
If gas prices keep climbing, it's going to be cheaper to fly my Y.S. 
engines than a gasser; of course, I won't have enough gas money to get 
out of the neighborhood, but that's another problem.
Bill Glaze


Ed Alt wrote:

> Has anyone looked at or tried this engine yet?  See:  
> http://www.rcshowcase.com/html/engines/zdz50.html
>  
> The weight with ignition of 3.37 lbs looks really good for a 2C gas 
> engine.  That's without a battery ofcourse, but it's still pretty 
> good.  It's a 48.5cc design, with recommended prop sizes (non-pattern 
> use of course) in the 2B 20x12 range and an RPM upper range of 7800.  
> Those are for stock muffler setups no doubt.
>  
> Ed

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