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Old 03-19-2005 | 01:51 PM
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JasonWilliam
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From: Pleasanton, CA
Default Kit just built and first time ran: questions before first flight

Hi all.

Well I got my 40 sized Fantasy out today for the first time and threw it on the break in stand for a run between the raindrops. The good news is the Saito 91 fired right up and ran like a champ. However there were a couple of things that happened I'd like your advice on.

1) Idle: At idle, engine seemed to run just fine. I tweaked it as low as I could before it started to spudder. At that speed, the plane was still being pulled forward with significant force. The only thing I can think is the 14x8 prop is just too much. If you think this might be the case too, recommend a prop size that might help the plane idle well, and yet still not taxi on its own.

2) Max RPM: the highest reading I got with my tack was 8200. I did have it set really really rich (2 1/2 turns out as per the manual) and I imagine this will improve when I tune it more and perhaps switch props. What RPM should I expect at the top end?

3) Locktite: What, if anything, should I Locktite down? The manual does not specify anything, but I've heard I should apply some to the exhaust system, since they like to blow off mid flight. Any thoughts?

4) Engine oil: since I've got the settings pretty rich for burn in after a single tank of running the fuse side and underside of the wing was literally dripping with Castor. My white plane was pink! There is no angle I can set the exhaust at to remove this as an issue. What worked on my 40LA trainer was a deflector tube. Can I use something like this on the 91 without a drop in performance?

5) Wing bolts: after a full tank of running and inspection I noticed one of the wing bolts was nearly 1/3 unscrewed. What can I do to ensure the vibrations don't knock those bolt loose during flight?

6) Velco: I've used velco to secure the Rx and battery to the inside of the fuse. This seems to work well, but I would like someone elses opinion. Will this survive and provide protection from the vibrations produced by the 91?

Thanks guys and gals. I really have and continue to appreciate all your help!
-JW