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AceMan · 03-04-2009, 04:02 PM

I'm just wondering if anyone has any feedback for this engine. If it's any good, how old it might be,,,,,,
Thanks

03-04-2009, 04:51 PM

Is This the one?. Produced in 1998. If I remember correctly just an all round good sport engine.

Ed S

johnnyg · 03-04-2009, 05:05 PM

Depending on what your going to use it on, good engine.
We use the 25fx's for combat and on a 9x4 prop the fx turns it 2000 rpm's faster than the other older 25's

John

Ken Currell · 03-04-2009, 05:10 PM

Quote:

Originally Posted by johnnyg

Depending on what your going to use it on, good engine.
We use the 25fx's for combat and on a 9x4 prop the fx turns it 2000 rpm's faster than the other older 25's

John

The FP is a plain bearing engine.
The FX is a ball bearing engine.

Both are good engines but the FP is more suited to sport flying than competition.

Don't use an electric starter too much on a plain bearing. You will eventually grind the end of the crankpin on the backplate. This can be remedied by adding a washer just behind the thrust washer when needed.

AceMan · 03-04-2009, 07:10 PM

I thought I'd ask, because I have one for sale and not a single person is interested in it. LOL But then again maybe I'm asking to much. Thanks for the reply's guys.
Jerry

moo · 03-04-2009, 10:23 PM

The bushing engine line has been replaced with LA series engines, the 25FP was changed to remote needle valve in 1998.

Therefore your engine is from the previous century sometime.

You have to compare it to a 25LA but parts are easier to come by for the LA.
(I have an OS20FP somewhere here, runs great, good engines)

Ken Currell · 03-04-2009, 10:33 PM

The FP has been replaced by the LA which is still a bushing engine.

Better performance.

aarinsingh · 03-05-2009, 06:24 AM

The LA Line of engines are good for nothing but paperweights. It has an airbleed carb that is garbage and built incredibly light. My .25FX had more power then my .40LA So if you need a cheapy .25 I'd take an FP over an LA anyday. My two cents.

moo · 03-05-2009, 08:21 AM

Quote:

Originally Posted by aarinsingh

The LA Line of engines are good for nothing but paperweights

I liked my 46LA, worked wonderfully pulling my flat-bottomed-wing trainer inverted around the field. I wouldn't put my 25FX on a 72" trainer.

Maybe you need to learn to tune an air bleed carb?

AceMan · 03-05-2009, 08:45 PM

Thanks for your input guys.

03-04-2009, 04:02 PM	#1
AceMan RCC Contributor I am: Jerry J Join Date: Feb 2007 Location: Teeswater, ON Radio of choice: JR Feedback: 28 / 97% Posts: 469 Total Props: 0	Os25 Fp Remove this ad - become a site supporter! I'm just wondering if anyone has any feedback for this engine. If it's any good, how old it might be,,,,,, Thanks
	.

03-04-2009, 04:51 PM	#2
Ed Smith Guest Feedback: / % Posts: n/a Total Props: 0	Re: Os25 Fp Is This the one?. Produced in 1998. If I remember correctly just an all round good sport engine. Ed S Attached Thumbnails
	.

03-04-2009, 05:05 PM	#3
johnnyg RCC Senior Contributor I am: John G Join Date: Jul 2004 Location: Mossley, On Feedback: 9 / 100% Posts: 564 Total Props: 3	Re: Os25 Fp Depending on what your going to use it on, good engine. We use the 25fx's for combat and on a 9x4 prop the fx turns it 2000 rpm's faster than the other older 25's John
	.

03-04-2009, 07:10 PM	#5
AceMan RCC Contributor I am: Jerry J Join Date: Feb 2007 Location: Teeswater, ON Radio of choice: JR Feedback: 28 / 97% Posts: 469 Total Props: 0	Re: Os25 Fp I thought I'd ask, because I have one for sale and not a single person is interested in it. LOL But then again maybe I'm asking to much. Thanks for the reply's guys. Jerry
	.

03-04-2009, 10:23 PM	#6
moo RCC Supreme Contributor I am: eric q Join Date: Jun 2005 Location: Crawford Lake, Ontario Radio of choice: Turborix # of RCs: too Feedback: 9 / 100% Posts: 7,148 Total Props: 27	Re: Os25 Fp The bushing engine line has been replaced with LA series engines, the 25FP was changed to remote needle valve in 1998. Therefore your engine is from the previous century sometime. You have to compare it to a 25LA but parts are easier to come by for the LA. (I have an OS20FP somewhere here, runs great, good engines) __________________ desiderantes meliorem patriam To err is human, to moo is bovine
	.

03-04-2009, 10:33 PM	#7
Ken Currell Guest I am: Ken Currell Join Date: Jun 2004 Location: Whitby, Ontario Radio of choice: Multiplex Royal Evo # of RCs: 30+ Feedback: 3 / 100% Posts: 3,684 Total Props: 0	Re: Os25 Fp The FP has been replaced by the LA which is still a bushing engine. Better performance.
	.

03-05-2009, 06:24 AM	#8
aarinsingh RCC Junior Contributor I am: Aarin S Join Date: Oct 2003 Location: Thompson Feedback: 0 / 0% Posts: 140 Total Props: 0	Re: Os25 Fp The LA Line of engines are good for nothing but paperweights. It has an airbleed carb that is garbage and built incredibly light. My .25FX had more power then my .40LA So if you need a cheapy .25 I'd take an FP over an LA anyday. My two cents. __________________ SHAG 2009 http://shag.hobby-site.com
	.

03-05-2009, 08:45 PM	#10
AceMan RCC Contributor I am: Jerry J Join Date: Feb 2007 Location: Teeswater, ON Radio of choice: JR Feedback: 28 / 97% Posts: 469 Total Props: 0	Re: Os25 Fp Thanks for your input guys.
	.

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