On Thu, 12 Jun 2008 16:03:39 -0700 (PDT), Mikie <mppg1@[EMAIL PROTECTED]
> wrote in
<613cba08-8636-468c-9b51-0e603660f084@[EMAIL PROTECTED]
>:
>I hate to be a pest, but I'm building a senorita, and from it, I'm
>learning that I'm not as smart as I thought I was...or as I once was!
>The plans are designed for gas engines; I'm planning on flying with
>an electric motor.
>But I don't know exactly how far to proceed using the plans. Would
>the electric take the same configuration in the nose, cowel, etc, as
>the gas?
Yes.
As best you can, build up a little box off the firewall (strongly
attached!) on which to mount your electric engine so that the
prop comes out where the gas prop would be. Try to get the
thruslines right, too (any downthrust, any right thrust).
Then you need to find out where to carry the batteries so that
the CG is correct.
Then you build a battery box and hatch system. MAKE SURE THAT
THE BATTERIES CAN'T FALL OUT AND GET DISCONNECTED. This happens
all the time with homebrew systems. The results, I hear, are
generally not pretty.
You also need cooling air to flow over the batteries.
The key is to have much larger exit holes than entrance
holes. I forget the factor--twice as large? Three times?
Cool air comes in, picks up heat from the batteries, and then
needs extra large openings to exit. Or something like that.
Let us know how it turns out.
There are lots of people who have done this already, of course.
I'm not one of them. If you poke around, you may find
a site that walks you through the whole process.
Marty
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