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MT-Prop Governor

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Mark Phillips in TN

Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN

Posted: Mon Dec 17, 2007 10:24 pm Post subject: MT-Prop Governor

I recently test flighted a new RV with an Aerosport IO-360, Hartzell BA prop and MT governor, and the prop would surge approximately 150-200 rpms about once per second under takeoff & climb power.  Pretty darn interesting on a first flight.  After calling Hartzell (they new about it and suggested calling Vans), Vans (the tech guy I talked to seemed a bit evasive, but gave me MTs phone#), then MT, I finally learned that any of their governors with a model # with anything earlier than an -F suffix has to be returned for modification to an -F series level.  This particular governor was a -B series purchased from Vans about 16-18 months ago.  Off to MT in DeLand Florida it went and was back in about 10 days- It now performs perfectly.

  

 But- I recently visited a builder near me who had bought the same governor, but had not yet installed it.  I asked to see it and it is a -C series unit.  He had no idea that when he installed it on his plane and had the surging problem he would have to pull it for modification as well- quite a hassle on a flying airplane, much easier to do before initial installation of course.  

  

 I sent Vans a polite e-mail asking if they were aware of this situation, and if so, were they planning to notify those who had bought these governors.  No response in over a week, so I thought I'd give y'all a little heads-up so you can avoid the same hassle I had.  If you have one of these units, contact Juergen at: http://www.mt-propellerusa.com/home.htm

  

 Mark Phillips, RV-6A "Mojo"

 Columbia, TN

 http://websites.expercraft.com/n51pw/



See AOL's top rated recipes and easy ways to stay in shape for winter.

  [quote][b]

_________________
From The PossumWorks...

randy(at)romeolima.com
Guest

Posted: Tue Dec 18, 2007 11:39 am Post subject: MT-Prop Governor

Mark,

 The governor may well need to be updated, but the surging you mention can  also be caused by the fine pitch stop on the prop being too fine. The way to  test it is to do a static full power run-up. The prop should not turn more than  around 2625 rpm, 2640 tops. If it does, adjust the fine pitch stop to a slightly  courser setting.

  

 Randy Lervold

 Camas, WA

  

 [quote]   ---

bobbyhester(at)newwavecom
Guest

Posted: Tue Dec 18, 2007 6:16 pm Post subject: MT-Prop Governor

Mark, I copied your message and posted it on VAF forums. Here is the link to the thread:

 [url=http://www.vansairforce.com/community/showthread.php?t 4754]http://www.vansairforce.com/community/showthread.php?t 4754[/url]

  	  Quote: 	
		  ----

Surfing the web from Hopkinsville, KY

Visit my flying RV7A web page:

http://home.newwavecomm.net/bobbyhester/MyFlyingRV7A.htm



	
 

 

 Fiveonepw(at)aol.com (Fiveonepw(at)aol.com) wrote: [quote]         I recently test flighted a new RV with an Aerosport IO-360, Hartzell BA prop and MT governor, and the prop would surge approximately 150-200 rpms about once per second under takeoff & climb power.  Pretty darn interesting on a first flight.  After calling Hartzell (they new about it and suggested calling Vans), Vans (the tech guy I talked to seemed a bit evasive, but gave me MTs phone#), then MT, I finally learned that any of their governors with a model # with anything earlier than an -F suffix has to be returned for modification to an -F series level.  This particular governor was a -B series purchased from Vans about 16-18 months ago.  Off to MT in DeLand Florida it went and was back in about 10 days- It now performs perfectly.

    

   But- I recently visited a builder near me who had bought the same governor, but had not yet installed it.  I asked to see it and it is a -C series unit.  He had no idea that when he installed it on his plane and had the surging problem he would have to pull it for modification as well- quite a hassle on a flying airplane, much easier to do before initial installation of course.  

    

   I sent Vans a polite e-mail asking if they were aware of this situation, and if so, were they planning to notify those who had bought these governors.  No response in over a week, so I thought I'd give y'all a little heads-up so you can avoid the same hassle I had.  If you have one of these units, contact Juergen at: http://www.mt-propellerusa.com/home.htm

    

   Mark Phillips, RV-6A "Mojo"

   Columbia, TN

   http://websites.expercraft.com/n51pw/

   

   

   

      See AOL's top rated recipes and easy ways to stay in shape for winter.

    	  Quote: 	
		  



 href="http://www.matronics.com/contribution">http://www.matronics.com/contribution

 href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.com/Navigator?RV-List

 href="http://forums.matronics.com">http://forums.matronics.com



	
 [b]

rice737(at)msn.com
Guest

Posted: Tue Dec 18, 2007 9:03 pm Post subject: MT-Prop Governor

Hey Mark,  

 

I had the same problem on my RV8. Give MT a call in Florida, I think it was Dean I spoke with, they will send you an updated governor modified for the Hartzell blended airfoil.  I replace mine and have had no problems since.  I believe it is a -F model that you need.  Anyway, I got good service from them. If you can't get a hold of them in Florida, try Eric Greindl (Eric.Greindl(at)MT-Propeller.com (Eric.Greindl(at)MT-Propeller.com)) over in Germany, he was also helpfull.  

  

 Good luck,

 Paul Rice N64PR

 RV8 60 hours

 



 [quote]  From: Fiveonepw(at)aol.com

Date: Tue, 18 Dec 2007 01:23:49 -0500

Subject: MT-Prop Governor 

To: rv-list(at)matronics.com



  I recently test flighted a new RV with an Aerosport IO-360, Hartzell BA prop and MT governor, and the prop would surge approximately 150-200 rpms about once per second under takeoff & climb power.  Pretty darn interesting on a first flight.  After calling Hartzell (they new about it and suggested calling Vans), Vans (the tech guy I talked to seemed a bit evasive, but gave me MTs phone#), then MT, I finally learned that any of their governors with a model # with anything earlier than an -F suffix has to be returned for modification to an -F series level.  This particular governor was a -B series purchased from Vans about 16-18 months ago.  Off to MT in DeLand Florida it went and was back in about 10 days- It now performs perfectly.

  

 But- I recently visited a builder near me who had bought the same governor, but had not yet installed it.  I asked to see it and it is a -C series unit.  He had no idea that when he installed it on his plane and had the surging problem he would have to pull it for modification as well- quite a hassle on a flying airplane, much easier to do before initial installation of course.  

  

 I sent Vans a polite e-mail asking if they were aware of this situation, and if so, were they planning to notify those who had bought these governors.  No response in over a week, so I thought I'd give y'all a little heads-up so you can avoid the same hassle I had.  If you have one of these units, contact Juergen at: http://www.mt-propellerusa.com/home.htm

  

 Mark Phillips, RV-6A "Mojo"

 Columbia, TN

 http://websites.expercraft.com/n51pw/



   See AOL's top rated recipes and easy ways to stay in shape for winter.

 	  Quote: 	
		  



blank>http://www.matronics.com/contribution

t=_blank>http://www.matronics.com/Navigator?RV-List

p://forums.matronics.com



	
[b]

Mark Phillips in TN

Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN

Posted: Tue Dec 18, 2007 9:34 pm Post subject: MT-Prop Governor

In a message dated 12/18/2007 1:41:31 PM Central Standard Time, randy(at)romeolima.com writes:

  	  Quote: 	
		  The way to test it is to do a static full power run-up. The prop should not turn more than around 2625 rpm, 2640 tops. 	


 >>>

  

 Hi Randy- it would hit just over 2600 whilst dragging the plane across the run-up area, brakes locked.  Max climbout rpm would be in the area you mentioned.  

  

 Mark

  

 p.s.- be careful doing this without a sissy wheel!

 



See AOL's top rated recipes and easy ways to stay in shape for winter.

  [quote][b]

_________________
From The PossumWorks...

Mark Phillips in TN

Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN

Posted: Tue Dec 18, 2007 10:11 pm Post subject: MT-Prop Governor

In a message dated 12/18/2007 11:05:33 PM Central Standard Time, rice737(at)msn.com writes:

  	  Quote: 	
		  I believe it is a -F model that you need 	


 >>

 Thanks, Paul- appreciate the info...

  

 Mark do not archive



See AOL's top rated recipes and easy ways to stay in shape for winter.

  [quote][b]

_________________
From The PossumWorks...

ronlee(at)pcisys.net
Guest

Posted: Wed Dec 19, 2007 8:34 am Post subject: MT-Prop Governor

Be careful doing a full power static runup with a taildragger?

  

 Can you say nose over?

  

 Please provide accepted methods of securing the plane so that 

 a nose over does not happen.

  

 Ron Lee

 [quote]   ---

Mark Phillips in TN

Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN

Posted: Wed Dec 19, 2007 9:19 am Post subject: MT-Prop Governor

In a message dated 12/19/2007 10:37:14 AM Central Standard Time, ronlee(at)pcisys.net writes:

  	  Quote: 	
		   Please provide accepted methods of securing the plane so that 

 a nose over does not happen.

	


 Can you say "tailhook"?

  

 

  

 Mark do not archive



See AOL's top rated recipes and easy ways to stay in shape for winter.

  [quote][b]

_________________
From The PossumWorks...

davemader(at)bresnan.net
Guest

Posted: Wed Dec 19, 2007 11:40 am Post subject: MT-Prop Governor

Youbetcha!  

         

  

From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Fiveonepw(at)aol.com

 Sent: Wednesday, December 19, 2007 10:17 AM

 To: rv-list(at)matronics.com

 Subject: Re: MT-Prop Governor   

  

       

In a message dated 12/19/2007 10:37:14 AM Central Standard Time, ronlee(at)pcisys.net writes:  

   	  Quote: 	
		      

Please provide accepted methods of securing the plane so that   

    

a nose over does not happen.  

  	
  

    

Can you say "tailhook"?  

    

   

    

  

    

   

    

Mark do not archive  

  



 

         

  

See AOL's top rated recipes and easy ways to stay in shape for winter.  

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randy(at)romeolima.com
Guest

Posted: Wed Dec 19, 2007 12:00 pm Post subject: MT-Prop Governor

Of course you'd have your tail tied down, wouldn't think of doing the  test without. In fact the tail should be tied low so that the prop has a  much ground clearance as possible. My bad for not mentioning that. I use a fire  hydrant near my hangar and tie a short rope right at ground level. This keeps  the tailwheel on the ground.

  

 Randy Lervold

  

 [quote]   ---

bobbyhester(at)newwavecom
Guest

Posted: Wed Dec 19, 2007 5:28 pm Post subject: MT-Prop Governor

I sent Mark a private email and I think he thought it was on the list.

 I am sure he wanted everyone to hear his reply 

 

 In a message dated 12/18/2007 8:09:13 PM Central Standard Time, bobbyhester(at)newwavecomm.net (bobbyhester(at)newwavecomm.net) writes:   	  Quote: 	
		  Mark, I copied your message and posted it on VAF forums. Here is the link to the thread:

   [url=http://www.vansairforce.com/community/showthread.php?t 4754]http://www.vansairforce.com/community/showthread.php?t 4754[/url] 	
 

 Hi Bobby- appreciate you letting the VAF folks in on it.  In their thread it was mentioned that cold oil or low ambient temps might cause this.  I wrestled with this situation for almost 20 hours hoping it was just break-in on new equipment- ambient temps were anywhere from 80-45 def.F.  No amount of cycling helped and neither did taking off again immediately after landing, even TAGs.  

  

 MT replaced several main components in the unit to fix the problem, admitting the earlier units hadn't quite been as good as they were expecting.  But let me re-iterate here that they willingly updated the unit with excellent turn-around time, and the returned unit works very well after about 4 hours additional flight time.  My main beef was not knowing about this "known" condition prior to initial installation and flight testing...

  

 Mark

 

 

 

  See AOL's top rated recipes and easy ways to stay in shape for winter.

 

 [quote]-- 

----

Surfing the web from Hopkinsville, KY

Visit my flying RV7A web page:

http://home.newwavecomm.net/bobbyhester/MyFlyingRV7A.htm



[b]

dsvs(at)ca.rr.com
Guest

Posted: Wed Dec 19, 2007 8:18 pm Post subject: MT-Prop Governor

Dumb  question.  This thread listed the prop as a BA.  Is this a pure  Govenor problem  that should show up regardless of the prop used?   

 [quote]   --

dsvs(at)ca.rr.com
Guest

Posted: Wed Dec 19, 2007 8:44 pm Post subject: MT-Prop Governor

Make  that regardless of the CS prop used.

 [quote]   --

Mark Phillips in TN

Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN

Posted: Wed Dec 19, 2007 9:06 pm Post subject: MT-Prop Governor

In a message dated 12/19/2007 7:30:38 PM Central Standard Time, bobbyhester(at)newwavecomm.net writes:

  	  Quote: 	
		  I sent Mark a private email and I think he thought it was on the list.

I am sure he wanted everyone to hear his reply 	


 Yep! (doh!) 

  

 Thanks, Bobby- do not archive



See AOL's top rated recipes and easy ways to stay in shape for winter.

  [quote][b]

_________________
From The PossumWorks...

Mark Phillips in TN

Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN

Posted: Wed Dec 19, 2007 9:31 pm Post subject: MT-Prop Governor

In a message dated 12/19/2007 10:21:08 PM Central Standard Time, dsvs(at)ca.rr.com writes:

  	  Quote: 	
		  Dumb question.  This thread listed the prop as a BA.  Is this a pure Govenor problem  that should show up regardless of the prop used?  	


 >>>

 I don't know if it is a result of this governor in combination with any specific prop- MT may be best equipped to answer that...

  

 http://www.mt-propellerusa.com/contact.htm

  

 Mark



See AOL's top rated recipes and easy ways to stay in shape for winter.

  [quote][b]

_________________
From The PossumWorks...

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