Mr Robert Geis wrote:

Hi all,

I'm planning to use a 13B engine in a Long EZ plans
built airframe.  Will this engine be overkill for this
airframe as the designer only reccommends 108-115 Hp
Lycosaurus engines?  Or will the extra HP allow me to
run at a lower RPM for more economy with the
appropriately designed prop?

I don't think I want to consider a lower HP 12? engine
since the 13B is much better supported.

Any ideas are certainly welcome.

Bob Geis
"Livin the Dream" in Iraq

 A 13B would be perfect for a Long EZ Bob.

Most people put at least

O-320 in them and a lot have O-360's. To really get the benefit
of low RPM cruise a variable pitch prop would be perfect.
Meccanair PSRU will accommodate a relatively low cost hydraulic
variable pitch prop although I am not sure they are available for
pushers.

BTW How's it going over there? You must me a short timer about now.

Paul Lamar

MecanAir's PSRU was designed for both pullers and pushers.

Francois Badoux

 
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