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Midair · 03-01-2005, 04:59 PM

Hello Gents:

A quick question - I intend to hang an OS .90 (two stroke) on the front end of my Hanger 9 Ultra Stick. The Top Flight prop chart lists a number of appropriate propellers for the .90, with a 14/6 as a good average or start point. I would like operate in the slower speed realm and work more on the 3D side of the performance envelope. Should I go up in diameter and down in pitch, perhaps a 15/5 or even a 16" prop or do I go the other way, smaller diameter and higher pitch

Peter

recon · 03-01-2005, 07:02 PM

For the slower stuff you want to go up in diameter and down in pitch. I have nothing that big but I am goofing around with a hangar nine twist and I am using a .47 engine on a 12.25x3.75 prop.

**scaleguy** · 03-01-2005, 10:18 PM

Peter,

Like recon said...up in Dia, down in pitch. Try an APC 15 x 4W, they are made for 3D.

I was using a 16 x 4W on an Enya 120FS in my H9 Cap232. Didn't want 3D but it slowed it down and the verticle climbs were out of this world Hamerheads were a thing of beauty!

.

craigk · 03-02-2005, 06:41 AM

Jim -
what did you use on your Saito 150?

AC/DC-patrice · 03-02-2005, 09:16 AM

on my os 91 fx, i have a 15/6 and it's the best prop i find

Midair · 03-06-2005, 12:52 AM

Thanks for the info

Peter

Gary Maker · 03-06-2005, 12:17 PM

I just wrote this same info in another thread but here goes again.

If you want some excellent advise on choosing the right propeller for IMAC, 3-D, and Precision Aerobatics, check out the latest 3-D Flyer Magazine, March/April Issue, Page 60. Great article with some excellent advise!

Also an excellent article on what servos to choose for larger, 35% and up scale aerobatic airplanes. Has the latest and greatest in the new lineup of high torque digital servos! You may be surprised at what Mfg's servos lead the pack in this new lineup!

3-D Flyer has now had three seperate unbiased and independant test articles, with the results on the leading Mfg's high torque servos. The same manufacturer has lead the way in all tests! Believe it or Not! LOL!

popcan · 03-06-2005, 02:29 PM

I have a Exta 300s with Saito 100 running 16x4 APC
I have a twist with GMS 47 12.25x3.75 perfect combo.
I have a Funtana 90s with Enya 120 16x 5

They all seem to work fine..You might try 15x4 ..

03-01-2005, 04:59 PM	#1
Midair RCC Pro Contributor I am: Peter M. Join Date: Feb 2003 Location: North Bay, ON Radio of choice: Futaba 18SZ # of RCs: 22 Feedback: 4 / 100% Posts: 1,685 Total Props: 26	Recommended Prop Size? Remove this ad - become a site supporter! Hello Gents: A quick question - I intend to hang an OS .90 (two stroke) on the front end of my Hanger 9 Ultra Stick. The Top Flight prop chart lists a number of appropriate propellers for the .90, with a 14/6 as a good average or start point. I would like operate in the slower speed realm and work more on the 3D side of the performance envelope. Should I go up in diameter and down in pitch, perhaps a 15/5 or even a 16" prop or do I go the other way, smaller diameter and higher pitch Peter __________________ Peter Merkel MAAC #22527 Murphy was an optimist; fly safe and have fun.
	.

03-01-2005, 07:02 PM	#2
recon RCC Master Contributor I am: Brady Join Date: Jan 2003 Location: Standard, Alberta Radio of choice: Futaba # of RCs: 6 Feedback: 0 / 0% Posts: 1,052 Total Props: 0	For the slower stuff you want to go up in diameter and down in pitch. I have nothing that big but I am goofing around with a hangar nine twist and I am using a .47 engine on a 12.25x3.75 prop. __________________ MAAC #63500
	.

03-01-2005, 10:18 PM	#3
scaleguy IMAC/SA or NOTHING! ★ Site Supporter ★ I am: JimmyD Join Date: Nov 2002 Location: Mississauga On, SE Zone Radio of choice: JETI Duplex DS-24 # of RCs: ? Feedback: 75 / 100% Posts: 16,819 Total Props: 59	Peter, Like recon said...up in Dia, down in pitch. Try an APC 15 x 4W, they are made for 3D. I was using a 16 x 4W on an Enya 120FS in my H9 Cap232. Didn't want 3D but it slowed it down and the verticle climbs were out of this world Hamerheads were a thing of beauty! . __________________ Jim Daly #IAmIMAC IMAC Sequence Committee Member MAAC #14323L IMAC #3678 *Windy you ask? I have Whitecaps on my Coffee, YOU be the Judge!*
	.

03-02-2005, 06:41 AM	#4
craigk RCC Supreme Contributor I am: Craig K Join Date: Sep 2002 Location: Sault Ste. Marie Radio of choice: Spectrum NX10 # of RCs: ? Feedback: 4 / 100% Posts: 2,947 Total Props: 10	Prop Size Jim - what did you use on your Saito 150? __________________ Craig MAAC #9467L IMAC 3706
	.

03-06-2005, 12:52 AM	#6
Midair RCC Pro Contributor I am: Peter M. Join Date: Feb 2003 Location: North Bay, ON Radio of choice: Futaba 18SZ # of RCs: 22 Feedback: 4 / 100% Posts: 1,685 Total Props: 26	Thanks for the info Peter __________________ Peter Merkel MAAC #22527 Murphy was an optimist; fly safe and have fun.
	.

03-02-2005, 09:16 AM	#5
AC/DC-patrice Guest Join Date: Jul 2004 Feedback: 0 / 0% Posts: 196 Total Props: 0	on my os 91 fx, i have a 15/6 and it's the best prop i find
	.

03-06-2005, 12:17 PM	#7
Gary Maker RCC Supreme Contributor I am: Gary M. Join Date: Jul 2003 Location: Stoney Creek, Ontario Radio of choice: Spektrum DX8 # of RCs: 9 Feedback: 34 / 100% Posts: 7,395 Total Props: 9	I just wrote this same info in another thread but here goes again. If you want some excellent advise on choosing the right propeller for IMAC, 3-D, and Precision Aerobatics, check out the latest 3-D Flyer Magazine, March/April Issue, Page 60. Great article with some excellent advise! Also an excellent article on what servos to choose for larger, 35% and up scale aerobatic airplanes. Has the latest and greatest in the new lineup of high torque digital servos! You may be surprised at what Mfg's servos lead the pack in this new lineup! 3-D Flyer has now had three seperate unbiased and independant test articles, with the results on the leading Mfg's high torque servos. The same manufacturer has lead the way in all tests! Believe it or Not! LOL! __________________ Time flies like an arrow - Fruit flys like a banana!GROUCHO MARKS Stoney Creek Hawks RC MAAC No. 43659
	.

03-06-2005, 02:29 PM	#8
popcan RCC Senior Contributor Join Date: Aug 2004 Location: Planet X On The Way Here<< Feedback: 0 / 0% Posts: 618 Total Props: 0	prop size I have a Exta 300s with Saito 100 running 16x4 APC I have a twist with GMS 47 12.25x3.75 perfect combo. I have a Funtana 90s with Enya 120 16x 5 They all seem to work fine..You might try 15x4 .. __________________ Have a great day!!!
	.

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