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Old Feb 17, 2013, 07:41 PM
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Most just use their fingers to quickly pinch the fuel line, limiting the fuel flow for less than a second so they can hear the rpm's pick up a few hundred rpms as the engine leans out for an instant. If no increase, you have probably set the needle valve too lean (i.e. too close to peak).

Kurt
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Old Feb 17, 2013, 07:47 PM
Tampa,Fl
Dale 813's Avatar
United States, FL, Tampa
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Quote:
Originally Posted by kbozarth View Post
Most just use their fingers to quickly pinch the fuel line, limiting the fuel flow for less than a second so they can hear the rpm's pick up a few hundred rpms as the engine leans out for an instant. If no increase, you have probably set the needle valve too lean (i.e. too close to peak).

Kurt
LOL. I ordered the clamps for closing off the fuel line after the tank is filled and for my JETT Tanker. I do use my fingers to pinch as you stated. That would be kinda funny seeing someone use clamps to pinch for peak.
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Old Feb 17, 2013, 07:53 PM
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Whewww.

Kurt
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Old Feb 17, 2013, 10:49 PM
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Description: covering is a pain. First time.
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Old Feb 18, 2013, 10:48 AM
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Typo
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Old Feb 18, 2013, 02:45 PM
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Powder Springs, GA
Joined Oct 2008
341 Posts
See the email I sent on the Jett mount. I got mine to fit and am satisfied with it.
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Old Feb 19, 2013, 12:07 AM
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Barry, thanks for the info. I ran into a problem today trying to finish this thing up so I can fly it. Great planes intends for the fuel tank to sit up front. Well with me putting my tank at the CG. This takes away the throttle servo spot where GP has it. I tried test fitting the servo back further but it interferes with the wing servo and rods. So I'm mounting it up front. Plenty of room up there.
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Old Feb 19, 2013, 06:17 AM
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Powder Springs, GA
Joined Oct 2008
341 Posts
Yes it gets tight in there. What ever works for you.

This is where my tank ended up.



You can see how much I had to carve out for the tank.


I will be mounting my throttle servo on the right side as low as possible and as close to the side as possible.
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Old Feb 19, 2013, 09:18 AM
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One of your prior pics showed the throttle servo position and I had went back last night and checked it out again. Unless I modify the aileron torque rods it won't fit. I got it looking nice in the front. I'll take a pic later tonight.
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Old Feb 19, 2013, 10:22 AM
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Powder Springs, GA
Joined Oct 2008
341 Posts
On the older one with the servo in the rear I had to shorten the aileron control rods coming out of the wing another 1/8-3/16 of an inch to get it to clear. I don't put them in that way anymore.
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Old Feb 19, 2013, 06:31 PM
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For maiden flight. Should I put softer sport tires on for landing instead of the racing wheels or does it really matter ? I'm pretty confident in making a soft landing. These wheels just look really hard. But if its not a big difference then ill stick with the racing wheels.
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Old Feb 19, 2013, 09:42 PM
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What wheels do you have???
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Old Feb 19, 2013, 11:46 PM
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What wheels do you have???
Funny you should ask. Next time I order stuff. I'll ask what it cost. These wheels were $25. NB. Something Bob. They must be fricken great wheels if they cost that much. Name: image.jpg
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Old Feb 19, 2013, 11:53 PM
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Description: . Here is my throttle servo mount up front. I just hope it won't be nose heavy because of it. I think I might maiden it this Friday. I was told to trim it to fly level at 45* bank. I would assume this means without turning ? And would I assume right by just add some right rudder trim ? I have my low rates at 25% on the ELE and 30% on the AIL and Rudd is 40%. Take off on Highs right ?
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Old Feb 20, 2013, 12:24 AM
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United States, KS, Overland Park
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You can't go by percentages - you should go by surface deflection.

3/16 of an inch of up elevator on both halves would be a good starting point for low rate on your elevator throw. Ailerons, maybe 1/4" or a little less each way. Rudder - you won't need a lot, just some for takeoff.

My low rates are typically 80% or so of my high rates. if you're using rates like 25%, I think you might want to consider using longer control horns or shorter servo arms to reduce the mechanical throw, so you don't give up so much resolution on the radio.

Also, don't use too much expo. I used to run about 30 percent, but a friend of mine that's a keen observer of pylon model flight, said it looked like as I would make corrections coming around corners that the elevator came on "all at once" - and suggested reducing the expo. 15% is about the max I use now, and I do like the way the planes fly much better.

Get hooked up with someone that's flown race planes in your area, and work with them to get things set up to race. You'll find that the control throws are pretty mild, actually. It's much easier to fly a course with a plane that isn't all twitchy and nervous.
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