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thorn247 · 05-27-2014, 07:45 AM

I have a saito fa 80 gk in a. 46 great planes matt Chapman eagle 580, and I have no idea what prop to start with? Something for sport flying with nice vertical. I have a 13/6 on it now but haven't flown it yet. Also do I need to re tune every time I change props?

Thunder Chicken · 05-27-2014, 05:15 PM

Im running a 14x6 APC on my FA-80 on a modded kadet senior. I get about 8500rpm.
Yes, retune with each new prop, and use a tach!! If you dont have one, the $40 or so is well worth it in tuning a 4 stroke engine. Your ear just can't do it like a 2 stroke.

Maybe try a 13x8? Different brands of the same size work different too.

Dale Hunter · 05-27-2014, 05:22 PM

APC, 13 X 8.
I ran an old FA80, it loved the APC 13 X 8 on a Senior Telemaster.
Hope this helps,
-Dale-

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steven r · 05-27-2014, 07:28 PM

I flew the 82 on a chapman and found the 14x6 APC suited airbatic flying better then the higher pitch. To each their own though.

thorn247 · 05-27-2014, 09:57 PM

Thanks for the input! I have a tach.

OLD PRAIRIE RED NECK · 05-27-2014, 11:36 PM

The Saito .80 is a little older technology than the .82 so has less horse power. It's the same family as the .65 where as the .82 shares the .56 & .72 genes. I believe it to be a bit more of a stump puller and won't rev quite as good as the .82.

What I'm getting at is it might be happier with the 13 x 8 like Dale suggested.

thorn247 · 05-28-2014, 02:21 AM

So would a 13x8 make it a fast plane? I've had a hard time trying to figure out what does what, I know small diameter high pitch is fast and larger diameter small pitch pulls but higher rpm

OLD PRAIRIE RED NECK · 05-28-2014, 06:46 AM

Quote:

Originally Posted by thorn247

So would a 13x8 make it a fast plane? I've had a hard time trying to figure out what does what, I know small diameter high pitch is fast and larger diameter small pitch pulls but higher rpm

That is correct. You are at the top end of the recommended engine sizes so unless the plane weighs a ton you should have no trouble getting good vertical. An 8" pitch on a 4 stroke will not be fast like the same pitch on a 2 stroke due to the engine running at a much lower rpm.

Pick up one of each and see which suites your flying style.

thorn247 · 05-29-2014, 12:34 AM

Thanks everyone! Off to the hobby shop! Oh darn lol

05-27-2014, 07:45 AM	#1
thorn247 RCC Apprentice I am: Dave T Join Date: Jun 2009 Location: Windsor,Ontario Radio of choice: Dx8 # of RCs: 5 Feedback: 0 / 0% Posts: 46 Total Props: 0	Saito fa80 prop size? Remove this ad - become a site supporter! I have a saito fa 80 gk in a. 46 great planes matt Chapman eagle 580, and I have no idea what prop to start with? Something for sport flying with nice vertical. I have a 13/6 on it now but haven't flown it yet. Also do I need to re tune every time I change props? __________________ GP Eagle 580 40 size GP Dazzler H9 Pulse XT 40
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05-27-2014, 05:15 PM	#2
Thunder Chicken RCC Expert Contributor I am: Nathan C Join Date: Dec 2005 Location: Sioux Lookout, ON Radio of choice: Airtronics Feedback: 6 / 100% Posts: 933 Total Props: 18	Re: Saito fa80 prop size? Im running a 14x6 APC on my FA-80 on a modded kadet senior. I get about 8500rpm. Yes, retune with each new prop, and use a tach!! If you dont have one, the $40 or so is well worth it in tuning a 4 stroke engine. Your ear just can't do it like a 2 stroke. Maybe try a 13x8? Different brands of the same size work different too.
	.

05-27-2014, 05:22 PM	#3
Dale Hunter RCC Supreme Contributor I am: Dale Hunter Join Date: Jan 2009 Location: Camrose, Alberta Radio of choice: a 12 X in each hand ! Feedback: 23 / 100% Posts: 8,579 Total Props: 39	Re: Saito fa80 prop size? APC, 13 X 8. I ran an old FA80, it loved the APC 13 X 8 on a Senior Telemaster. Hope this helps, -Dale- 100% free webcam site! \| Awesome chicks and it is absolutely free! \| Watch free live sex cam - easy as 1-2-3 __________________ FishFly - FunFly, Sept 11-13. Great fun! Trout Farm Flyers. Life is good.
	.

05-27-2014, 07:28 PM	#4
steven r RCC Expert Contributor I am: Steven Ruxton Join Date: Jul 2009 Location: Woodstock, ON Radio of choice: Futaba 14MZ # of RCs: 8+ Feedback: 21 / 100% Posts: 810 Total Props: 2	Re: Saito fa80 prop size? I flew the 82 on a chapman and found the 14x6 APC suited airbatic flying better then the higher pitch. To each their own though. __________________ I've only ever wanted 1 more plane.....at a time http://www.woodstockrc.club/
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05-27-2014, 09:57 PM	#5
thorn247 RCC Apprentice I am: Dave T Join Date: Jun 2009 Location: Windsor,Ontario Radio of choice: Dx8 # of RCs: 5 Feedback: 0 / 0% Posts: 46 Total Props: 0	Re: Saito fa80 prop size? Thanks for the input! I have a tach. __________________ GP Eagle 580 40 size GP Dazzler H9 Pulse XT 40
	.

05-27-2014, 11:36 PM	#6
OLD PRAIRIE RED NECK RCC Supreme Contributor I am: MERVIN BURKINSHAW Join Date: Dec 2010 Location: CORONATION ALBERTA Radio of choice: HITEC # of RCs: 13 Feedback: 12 / 100% Posts: 5,780 Total Props: 336	Re: Saito fa80 prop size? The Saito .80 is a little older technology than the .82 so has less horse power. It's the same family as the .65 where as the .82 shares the .56 & .72 genes. I believe it to be a bit more of a stump puller and won't rev quite as good as the .82. What I'm getting at is it might be happier with the 13 x 8 like Dale suggested. __________________ I never finish anything, I have a black belt in the partial arts!
	.

05-28-2014, 02:21 AM	#7
thorn247 RCC Apprentice I am: Dave T Join Date: Jun 2009 Location: Windsor,Ontario Radio of choice: Dx8 # of RCs: 5 Feedback: 0 / 0% Posts: 46 Total Props: 0	Re: Saito fa80 prop size? So would a 13x8 make it a fast plane? I've had a hard time trying to figure out what does what, I know small diameter high pitch is fast and larger diameter small pitch pulls but higher rpm __________________ GP Eagle 580 40 size GP Dazzler H9 Pulse XT 40
	.

05-29-2014, 12:34 AM	#9
thorn247 RCC Apprentice I am: Dave T Join Date: Jun 2009 Location: Windsor,Ontario Radio of choice: Dx8 # of RCs: 5 Feedback: 0 / 0% Posts: 46 Total Props: 0	Re: Saito fa80 prop size? Thanks everyone! Off to the hobby shop! Oh darn lol __________________ GP Eagle 580 40 size GP Dazzler H9 Pulse XT 40
	.

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