YS 61s plane engine hanher9 extreme build  
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YS 61s plane engine hanher9 extreme build - 6/14/2008 7:38:35 PM   
THOMAS843


 

Posts: 6
Joined: 6/10/2008
From: SEFFNER, FL, USA
Status: offline 		Hi mate's, I'm building a hanger9 extreme for a freind. the engine he gave me is a ys 61 plane engine w/o muffler. Engine is brand new. I've searched all availible avenues for a muffler to fit this engine with no luk. Any suggestions are very much needed. thanks, Tom
       Post #: 1

RE: YS 61s plane engine hanher9 extreme build - 6/14/2008 8:06:12 PM   
iron eagel



Posts: 1268
Joined: 7/15/2004
From: Middleboro, MA, USA
Status: offline 		J-tec or Jett should have one that will work.

http://www.jtecrc.com/
http://www.jettengineering.com/

_____________________________

The Wrights never crashed, they only had hard landings. I 've had some hard landings myself. AMA EAA AOPA revver #185

(in reply to THOMAS843)
       Post #: 2

RE: YS 61s plane engine hanher9 extreme build - 6/15/2008 12:04:44 AM   
THOMAS843


 

Posts: 6
Joined: 6/10/2008
From: SEFFNER, FL, USA
Status: offline 		Thanks Iron eagle. will give jtec a call in a.m.

(in reply to iron eagel)
       Post #: 3

RE: YS 61s plane engine hanher9 extreme build - 6/16/2008 12:20:25 PM   
airbusdrvr


 

Posts: 863
Joined: 11/3/2005
From: New Port Richey, FL, USA
Status: offline 		YS 61s were piped engines. They were designed to use headers which Macs sells, macspro.com. I had an application where I had to use a muffler. I found the OS 61 FSR muffler(I believe) was a near fit. These mufflers are available from Mecoa. PM me if you want more info.

Do not use a Performance Specialties UltraThrust. Dave, at PS, even says this muffler is not suitable.

(in reply to THOMAS843)
       Post #: 4

RE: YS 61s plane engine hanher9 extreme build - 6/16/2008 12:24:07 PM   
airbusdrvr


 

Posts: 863
Joined: 11/3/2005
From: New Port Richey, FL, USA
Status: offline 		Look at post #111 in this build thread, http://www.rcuniverse.com/forum/m_1304245/mpage_5/key_/tm.htm

(in reply to airbusdrvr)
       Post #: 5

RE: YS 61s plane engine hanher9 extreme build - 6/16/2008 11:22:11 PM   
THOMAS843


 

Posts: 6
Joined: 6/10/2008
From: SEFFNER, FL, USA
Status: offline 		So Airbus is this muffler stock ys or stock os. I havent had a chance to call jtec (actually forgot, wonder what time zone their in?). You Know I'm not even sure if ys makes a stock muffler? I wish my freind had used something a little less exotic. Thanks buddy for info. Tom

(in reply to airbusdrvr)
       Post #: 6

RE: YS 61s plane engine hanher9 extreme build - 6/17/2008 2:08:12 AM   
airbusdrvr


 

Posts: 863
Joined: 11/3/2005
From: New Port Richey, FL, USA
Status: offline 		To my knowledge, YS made no mufflers for these engines. They were header/tuned pipe engines. However, they have an internal pump and that is the reason the UltraThrust(1/4 or 1/2 pipe, whatever they are)mufflers are not compatible. There is some back pressure issue with this muffler and the engine. I don't know what a Hangar 9 extreme plane is, so I don't know what engine it was designed to use. You could make a post in the classic pattern forum about this engine. I'm sure someone would be willing to swap you a really nice more modern muffled engine. The YS engines were very desireable in their day and these classic guys still like to use them when they come available. I have three variants of the YS 61. All are good running and reliable engines.

(in reply to THOMAS843)
       Post #: 7

RE: YS 61s plane engine hanher9 extreme build - 6/18/2008 12:13:38 AM   
THOMAS843


 

Posts: 6
Joined: 6/10/2008
From: SEFFNER, FL, USA
Status: offline 		Thanks for info. Kit I am building for my friend is h9 extreme 540 3d. I'm not sure he realizes what kind of motor he has here, kit calls for 46. Also header and pipes are going to be expensive. We fly Thursdays, and I'm going to tell him to think about a different motor, again thanks for your help Tom

(in reply to airbusdrvr)
       Post #: 8

RE: YS 61s plane engine hanher9 extreme build - 6/18/2008 12:23:43 AM   
iron eagel



Posts: 1268
Joined: 7/15/2004
From: Middleboro, MA, USA
Status: offline 		I have seen these engines with both Jtec and jett mufflers used. As long as the proper back pressure is maintained what type of exhaust does not matter for most sport flying, just that it functions well. High performance such as speed or pylon racing has a lot more issues you have to look at. The folks at J-tec list YS-61 as an engines their mufflers work on give them a call (Eastern time zone).

_____________________________

The Wrights never crashed, they only had hard landings. I 've had some hard landings myself. AMA EAA AOPA revver #185

(in reply to THOMAS843)
       Post #: 9

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