Engines

[Jerry Budd]

It's more in the 5700-6000 range, depending on density altitude (load 
on the prop).

>Isnt the Hacker setup turning in the 6-7000 rpm range on that prop?
>
>Jerry Budd <jbudd at QNET.COM> wrote:
>
>  >More rudder workload for the pilot?
>
>I assume you're referring to adding rudder during pushes/pulls?
>Neither Tony's ePartner nor my E=MC3 require any. If your airplane
>needs rudder during pushes/pulls you either need to retrim it or you
>need a different plane.
>
>>Lower tip speeds, less noise?
>
>The electric (Hacker C50-14XL) isn't dramatically quieter in the air
>due to the gearbox noise it makes. I haven't calculated the tip
>speeds but I would expect them to be way down since one is almost
>never at full power in level flight, and on uplines the prop is
>loaded so the sound never really changes much. I have heard that the
>direct drive Plettenberg (sp?) used by Bernd Beschorner at the
>European Championships a few weeks ago was so quiet, it was "eerie".
>
>>Having to create higher weight, longer, less stable fixed gear?
>
>Same gear mounted lower in the fuselage (no tuned pipe/muffler to get
>in the road). Plenty of ground clearance with the 22-12 prop (over
>2").
>
>>More expensive propellors?
>
>I don't know for sure, I only used one (and it wasn't mine), but I
>think it costs about the same as the 17-12's I use on the Webra.
>
>Thx, Jerry
>--
>___________
>Jerry Budd
>mailto:jbudd at qnet.com
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-- 
___________
Jerry Budd
mailto:jbudd at qnet.com
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