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Author Topic: FP20 versions IDing  (Read 1952 times)

Offline Gordon Tarbell

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FP20 versions IDing
« on: March 16, 2012, 08:07:18 PM »
Seems after reading on this forum there are different versions of the FP20. can anyone post pics for identifying  the various sub species of these little jewels? I am thinking of trying to procure one for a plane package to fly the Clint Ormenson 25 stunt class. Are any of the Magnum and TT clones close enough to work with the same Brett Buck tune up?
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Offline Brett Buck

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Re: FP20 versions IDing
« Reply #1 on: March 16, 2012, 10:49:52 PM »
Quote from: gordon tarbell on March 16, 2012, 08:07:18 PM
Seems after reading on this forum there are different versions of the FP20. can anyone post pics for identifying  the various sub species of these little jewels? I am thinking of trying to procure one for a plane package to fly the Clint Ormenson 25 stunt class. Are any of the Magnum and TT clones close enough to work with the same Brett Buck tune up?

   As far as I know there are only two consequential different versions, the ABC liner and the iron liner. You can tell them apart from 20 feet if you know what to look for. The iron-liner version has a "raised" channel for the bypass, and the ABC is smooth.

First is iron-liner, second is ABC

  Brett

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Offline Gordon Tarbell

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Re: FP20 versions IDing
« Reply #2 on: March 17, 2012, 09:33:20 AM »
Dang, I just bought one NIB that looks like the first photo. Now I will try to find one that looks like the smooth one for the ABC/ABN P&L since that is the one that gives the killer run.
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Offline Bill Little

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Re: FP20 versions IDing
« Reply #3 on: March 17, 2012, 11:28:05 AM »
Hi Gordon,

The first one I had was an iron/steel version.  Not much difference at all in the way it runs compared to the ABN version.

Bill
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Big Bear <><

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Offline Gordon Tarbell

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Re: FP20 versions IDing
« Reply #4 on: March 17, 2012, 02:26:31 PM »
So it will still give the BBTU style run?
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Offline Bill Little

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Re: FP20 versions IDing
« Reply #5 on: March 17, 2012, 05:17:54 PM »
Quote from: gordon tarbell on March 17, 2012, 02:26:31 PM
So it will still give the BBTU style run?

Mine did.  AFAIK, the timing is identical.  The MAJOR piece of the BBTU is the 2030 muffler.  Without it, you just get a good running .20 sized engine. ;D

BIG Bear
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Big Bear <><

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Offline Clint Ormosen

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Re: FP20 versions IDing
« Reply #6 on: March 17, 2012, 11:00:24 PM »
Gordon, I have several of both versions of the FP20 and they all run pretty much the same. Maybe a slight advantage to the ABN version for a steadier run, but not enough to lose sleep over. Use the one you have, it'll be fine.

Edit: Hope you enter Stunt 25! It's a "just for fun" event.
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Offline Gordon Tarbell

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Re: FP20 versions IDing
« Reply #7 on: March 18, 2012, 11:09:10 AM »
 I am looking forward to flying your .25 event , that is what this is for. That and to get another tool to improve my flying
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Offline Chris Wilson

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Re: FP20 versions IDing
« Reply #8 on: March 19, 2012, 10:41:34 PM »
Quote from: Bill Little on March 17, 2012, 05:17:54 PM
Mine did.  AFAIK, the timing is identical.  The MAJOR piece of the BBTU is the 2030 muffler.  Without it, you just get a good running .20 sized engine. ;D

BIG Bear
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Ok, I will bite, why is the 2030 muffler any better than any other?
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MAAA AUS 73427

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 Nothing in life is so exhilarating as to be shot at without result.  It's not enough that we do our best; sometimes we have to do what's required

Offline Brett Buck

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Re: FP20 versions IDing
« Reply #9 on: March 19, 2012, 11:13:13 PM »
Quote from: Chris Wilson on March 19, 2012, 10:41:34 PM
Ok, I will bite, why is the 2030 muffler any better than any other?

   I don't know for sure. I do know that the tuning of the pipe, er, muffler is just about right on the "e-2030" compared to the "862". The real reason is that all the initial testing was with the E-2030, because that's what I had,  and it turned out just about perfect.

    Brett
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Offline Chris Wilson

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Re: FP20 versions IDing
« Reply #10 on: March 20, 2012, 03:46:01 PM »
Got it, thanks Brett.
 :)
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MAAA AUS 73427

You have enemies? Good. That means you've stood up for something, sometime in your life.
 Nothing in life is so exhilarating as to be shot at without result.  It's not enough that we do our best; sometimes we have to do what's required

Offline Bill Little

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Re: FP20 versions IDing
« Reply #11 on: March 20, 2012, 04:35:24 PM »
Quote from: Chris Wilson on March 19, 2012, 10:41:34 PM
Ok, I will bite, why is the 2030 muffler any better than any other?

Like Brett said, it works better than any other muffler for the desired run style.  With the 2030, you get a real "pipe style" run.  All the parts (APC 9-4, etc..) combined just work that way.  Do something different and it just ain't the same.

BIG Bear
RNMM/AMM
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Big Bear <><

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