Mailing List flyrotary@lancaironline.net Message #12703
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: EWP Info- Lynn?
Date: Mon, 8 Nov 2004 14:31:47 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
As I’ve suggested before, I don’t see saving power consumption as a reason for considering an EWP, especially considering the losses in converting mech energy to electrical and back again.   
 
I think the biggest chance to save power on cooling is if Mazda is providing way more than is necessary at our cruise rpms.  I have to suspect that's the case, since Todd is running just fine with only 9.X gpm.  
 

Al (I swear I will not say another word about EWPs; that beheading thing is just too scary) 

 

Ha.  Don't worry, my wife would kill me if I stained the carpet :-)  

 

As for EWP's saving power, you'd think that the first people to jump on that would be the racers.  I know that these pumps are sold to drag racers, but I can't say that I've heard of other types of racers using these pumps. 

 

Hey Lynn,

 

-Are EWP's against the rules?

-Has someone determined that they don't save any HP? 

-Has someone determined that they won't cool the engine in racing conditions?

 

Cheers,

Rusty (just can't have any fun on this list) 

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