REFLECTOR: N4PE "The Ape" First Start
Laurence Coen
lwcoen at hotmail.com
Mon Feb 27 10:40:58 CST 2006
Brian,
Did you mean to say the MAP was 28" not 28 PSI? My carbureted Slick mag
Franklin/IVO turns 2500 RPM static.
Larry Coen
N136LC
----- Original Message -----
From: "Douglas Holub" <doug.holub at comcast.net>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Monday, February 27, 2006 8:23 AM
Subject: Re: REFLECTOR: N4PE "The Ape" First Start
> Congratulations Brian!
> ----- Original Message -----
> From: "Brian Michalk" <michalk at awpi.com>
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Sent: Sunday, February 26, 2006 11:23 PM
> Subject: REFLECTOR: N4PE "The Ape" First Start
>
>
>> Ten years ago, on Valentines day our kit arrived. Today we had the first
>> engine start.
>>
>> I can now say I'm the proud owner of a running Franklin/IVO combination.
>> I've got two electronic fuel injection systems, electronic ignition, and
>> a magneto. It's turbocharged with intercoolers. I fabricated the
>> stainless steel intake and exhaust manifold from scratch since there were
>> no other working examples to copy. I worked out the math on the
>> injectors, turbo, fuel pumps, and all of the components that are simply
>> not available in a package. I had a lot of concerns over whether it
>> would work or not. I watched other people's failures and tried not to
>> make the same mistakes.
>>
>> I am very pleased that the large turbo breathes quite well with the open
>> waste gate. In fine pitch, I am able to make 2250 RPM. Deeter's
>> Franklin will do 2400RPM static. The MAP at 2250 was 28PSI. I
>> calculated I would lose a little less than 1PSI across the intercoolers,
>> and didn't know what the drop would be for the turbo.
>>
>> The engine starts like a dream on the Autronic electronic engine
>> management system. I did have some problems though. I completely messed
>> up the magneto wiring. I have no idea how I did it, but once we got that
>> problem sorted out, the engine ran like a top. I am leaking oil out the
>> turbo, and need to look at the scavenge pump. I might have it hooked up
>> backwards. During the high power runs we needed to tweak the mixture
>> because it was originally too lean for the stock setting. The power
>> control is a single knob affair. The Autronic calculates all of the
>> mixtures for operation.
>>
>> I installed a Linksys router in the airplane that has been hacked to run
>> Linux. We logged the engine data to a laptop via the wireless
>> connection. For the first flight we intend to get telemetry via 802.11,
>> and maybe even put a webcam on board.
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>
>
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