 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
roxianmike(at)msn.com
Guest
|
 Posted: Sat Jan 30, 2010 7:01 pm Post subject: Three Blade MT Propeller |
 |
|
Anyone on the list purchase the three blade MT and if so what is the opinion of this set up versus the Hartzell which is about 50%more expensive? [quote][b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
|
|
| Back to top |
|
 |
ricksked(at)cox.net
Guest
|
| Posted: Sat Jan 30, 2010 7:50 pm Post subject: Three Blade MT Propeller |
|
|
Little slower, looks very cool and as smooth as Deem's bottom!
Sent via BlackBerry by AT&T
--
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
|
|
| Back to top |
|
|
n223rv(at)wolflakeairport
Guest
|
| Posted: Sat Jan 30, 2010 9:05 pm Post subject: Three Blade MT Propeller |
|
|
I have a MT, but not flying yet. Bought it because it is smoooooth..... Wish I hadn't because it makes taking the lower cowl off a biotch..... Since the blended airfoil Hartzell is faster and makes the cowl infinitely easier to get off, I wish I'd have purchased it....
That is just my opinion.....
-Mike
Sent from my iPhone
On Jan 30, 2010, at 9:54 PM, Roxanne and Mike Lefever <roxianmike(at)msn.com (roxianmike(at)msn.com)> wrote:
[quote] Anyone on the list purchase the three blade MT and if so what is the opinion of this set up versus the Hartzell which is about 50%more expensive?
[b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
|
|
| Back to top |
|
|
partner14
Joined: 12 Jan 2008
Posts: 540
Location: Granbury Texas
|
| Posted: Sat Jan 30, 2010 11:04 pm Post subject: Three Blade MT Propeller |
|
|
Now I'm concerned.... wondering how Rick knows about Deem's bottom.... then why Deem's would get involved in any thing like that.... Oh crap, I'm flying down to Vegas in Feb and am staying in Ricks hangar while we attend the NASCAR race "together", and then we're flying down to visit Deems..... this simply does not sound good!!!!!!!!!!!!
On a serious note.... I love my MT... very smooth, and certainly fast. Climbout the other day with 2 big boys on board was over 2,140 fpm, and most of the time we cruise between 170 and 184 knots, at between 9.5 and 10.2 gph. Ran with a Cirrus the other day; we were both at 4500' at 25sq, 200mph.
But what the hell do I know.
Don McDonald
--- On Sat, 1/30/10, ricksked(at)cox.net <ricksked(at)cox.net> wrote:
| Quote: |
From: ricksked(at)cox.net <ricksked(at)cox.net>
Subject: Re: Three Blade MT Propeller
To: rv10-list(at)matronics.com
Date: Saturday, January 30, 2010, 7:22 PM
Little slower, looks very cool and as smooth as Deem's bottom! Sent via BlackBerry by AT&T
From: Roxanne and Mike Lefever <roxianmike(at)msn.com>
Date: Sat, 30 Jan 2010 19:54:36 -0700
To: <rv10-list(at)matronics.com>
Subject: Three Blade MT Propeller
Anyone on the list purchase the three blade MT and if so what is the opinio= n of this set up versus the Hartzell which is about 50%more expensive? = = | Quote: |
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
List
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
| Quote: |
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
|
|
¦·›~‰í²,Þpör‰h4ÓM4}§pÜ¢êâz¹ÞÁÊ.®'«pÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÓ…äU×Bâ²Ñ&j)E¢»¦pÔ±ëaxÆ®‰ârÂâ²Ñ^jÛ«zÃZ¾(¶Ší¡ºèÂÇÜ;azf§È¸¬¶ëb–+bzË.r¬.+-RÒ¹»®*mŠ‰Ü0+r¯y'šÈC£ 塧{ ¬�®Œ,x(Z´Ppφ‹h²«y©Ýšç!šç!šŠÞpÜ6¡çÜ8m¶ŸÿÃ&jÚèž',r‰¿5«â�«hu謶m§ÿðà š¶º'‰Ë¢oÍjø jÚ+E]t.+-ý· ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 Ã0Ñ8ÒIaäT17 &¦z Þj×(ž×§µ©l¡«ÚŠV›•ëâjØ^YæÅ¢»¦½ÃpÚ†·Ÿpá¶Úýú+ºk&jÚèž',r‰¡¶Úýú+ºk&jÚèž',r‰¿mÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpËŠËB¢{k‰»Š‰Öy´¢µ÷ 8ZžL¨¹ú+Ê‹«�éÞ®‹¬²êi¢»Ü3¶ÐëjY^.+-Ù¢�ÃjÞ}ÆÛiÿü0Âf®‰ârÇ(›÷(žÚânëb¢xm¶ŸÿÃ&jÚèž',r‰¿r‰í®&î¶*'ý· ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ?Ûýú'·úk{öèw/á¶i
|
[quote][b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
_________________
Don A. McDonald
40636 |
|
| Back to top |
|
|
dmaib(at)mac.com
Guest
|
| Posted: Sun Jan 31, 2010 4:49 am Post subject: Three Blade MT Propeller |
|
|
I have been flying with the 3 blade MT for 14 months and over 180 hours with absolutely no problems. Very smooth prop. The common wisdoms seems to say that the 3 blade props are a few knots slower than 2 blade. The MT is 17 lbs lighter than the 2 blade Hartzell IIRC. I don't know what the weight of the 3 blade Hartzell is. You will get a bit of paint erosion from flying in rain with the MT. The MT maintenance manual gives good instructions for easy repair of this erosion.
David Maib
40559
flying
On Jan 30, 2010, at 9:54 PM, Roxanne and Mike Lefever wrote:
Anyone on the list purchase the three blade MT and if so what is the opinion of this set up versus the Hartzell which is about 50%more expensive? | Quote: |
href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/contribution
|
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
|
|
| Back to top |
|
|
msausen
Joined: 25 Oct 2007
Posts: 559
Location: Appleton, WI USA
|
|
| Back to top |
|
|
roxianmike(at)msn.com
Guest
|
| Posted: Sun Jan 31, 2010 8:48 am Post subject: Three Blade MT Propeller |
|
|
THanks all on the MT
Date: Sat, 30 Jan 2010 23:02:42 -0800
From: building_partner(at)yahoo.com
Subject: Re: RV10-List: Three Blade MT Propeller
To: rv10-list(at)matronics.com
Now I'm concerned.... wondering how Rick knows about Deem's bottom.... then why Deem's would get involved in any thing like that.... Oh crap, I'm flying down to Vegas in Feb and am staying in Ricks hangar while we attend the NASCAR race "together", and then we're flying down to visit Deems..... this simply does not sound good!!!!!!!!!!!!
On a serious note.... I love my MT... very smooth, and certainly fast. Climbout the other daywith 2 big boys on board was over 2,140 fpm, and most of the time we cruise between 170 and 184 knots, at between 9.5 and 10.2 gph. Ran with a Cirrus the other day; we were bothat 4500' at 25sq, 200mph.
But what the hell do I know.
Don McDonald
--- On Sat, 1/30/10, ricksked(at)cox.net <ricksked(at)cox.net> wrote:
| Quote: |
From: ricksked(at)cox.net <ricksked(at)cox.net>
Subject: Re: RV10-List: Three Blade MT Propeller
To: rv10-list(at)matronics.com
Date: Saturday, January 30, 2010, 7:22 PM
.ExternalClass #ecxyiv30883475 #ecxyiv1423998073 .ecxhmmessage P {;} .ExternalClass #ecxyiv30883475 #ecxyiv1423998073 {;} Little slower, looks very cool and as smooth as Deem's bottom! Sent via BlackBerry by AT&T
From: Roxanne and Mike Lefever <roxianmike(at)msn.com>
Date: Sat, 30 Jan 2010 19:54:36 -0700
To: <rv10-list(at)matronics.com>
Subject: RV10-List: Three Blade MT Propeller
Anyone on the list purchase the three blade MT and if so what is the opinio= n of this set up versus the Hartzell which is about 50%more expensive? = = | Quote: |
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
List
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
| Quote: |
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
|
|
¦·›~‰í²,Þpör‰h4ÓM4}§pÜ¢êâz¹ÞÁÊ.®'«pÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÓ…äU×Bâ²Ñ&j)E¢»¦pÔ±ëaxÆ®‰ârÂâ²Ñ^jÛ«zÃZ¾(¶Ší¡ºèÂÇÜ;azf§È¸¬¶ëb–+bzË.r¬.+-RÒ¹»®*mŠ‰Ü0+r¯y'šÈC£ 塧{ ¬�®Œ,x(Z´Ppφ‹h²«y©Ýšç!šç!šŠÞpÜ6¡çÜ8m¶ŸÿÃ&jÚèž',r‰¿5«â�«hu謶m§ÿðà š¶º'‰Ë¢oÍjøjÚ+E]t.+-ý· ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 Ã0Ñ8ÒIaäT17 &¦z Þj×(ž×§µ©l¡«ÚŠV›•ëâjØ^YæÅ¢»¦½ÃpÚ†·Ÿpá¶Úýú+ºk&jÚèž',r‰¡¶Úýú+ºk&jÚèž',r‰¿mÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpËŠËB¢{k‰»Š‰Öy´¢µ÷ 8ZžL¨¹ú+Ê‹«�éÞ®‹¬²êi¢»Ü3¶ÐëjY^.+-Ù¢�ÃjÞ}ÆÛiÿü0Âf®‰ârÇ(›÷(žÚânëb¢xm¶ŸÿÃ&jÚèž',r‰¿r‰í®&î¶*'ý· ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ7 ÃpÜ?Ûýú'·úk{öèw/á¶i
|
[quote][b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
|
|
| Back to top |
|
|
Tim Olson
Joined: 25 Jan 2007
Posts: 2879
|
| Posted: Sun Jan 31, 2010 9:14 am Post subject: Three Blade MT Propeller |
|
|
I don't think there have ever been any numbers from non-souped engines to show the aerocomposite being faster on a same cowl/engine combo. Not saying it isn't true, but to date I think the only KNOWN data point is the MT is just the slightest bit slower...not much. The aerocomposite might be faster or equal, but no real solid side by side flight has been done like with the MT. It is a beautiful prop, regardless.
Tim
On Jan 31, 2010, at 10:36 AM, "RV Builder (Michael Sausen)" <rvbuilder(at)sausen.net (rvbuilder(at)sausen.net)> wrote:
[quote]
General consensus is that with the MT you get:
- a couple not decrease in top end
- a much smoother prop
- increase in climb performance and quicker off the blocks
- much bigger PITA when taking off the lower cowl
- lighter nose weight
- Sex appeal 
The Aerocomposite that Deems and a few others have are supposed to be as fast or slightly faster than the Hartzell and you can have them painted for a couple point bump in the aforementioned sex appeal.
Michael
From: owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Roxanne and Mike Lefever
Sent: Saturday, January 30, 2010 8:55 PM
To: [url=mailto:rv10-list(at)matronics.com]rv10-list(at)matronics.com (rv10-list(at)matronics.com)[/url]
Subject: Three Blade MT Propeller
Anyone on the list purchase the three blade MT and if so what is the opinion of this set up versus the Hartzell which is about 50%more expensive? 0123456789
0
[b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
|
|
| Back to top |
|
|
dmaib(at)mac.com
Guest
|
| Posted: Sun Jan 31, 2010 9:23 am Post subject: Three Blade MT Propeller |
|
|
MT has some limited color choices as well. Mine is black with yellow tips. I forgot to mention the lower cowl issue that many have noted. You will have to modify your lower cowl to get it on and off. If you live reasonably close to a major airport (with customs), you can arrange to have the prop shipped directly from the factory assembled. This will save you from having it shipped in pieces to a US MT service center and paying to have it assembled there. Then you will have to pick it up or arrange for shipping from the service center. Jim Ayres at LessDragProducts did a good job for me and saved me a few bucks by suggesting I have it shipped from the factory assembled.
David Maib
40559
flying
On Jan 31, 2010, at 11:36 AM, RV Builder (Michael Sausen) wrote:
General consensus is that with the MT you get:
- a couple not decrease in top end
- a much smoother prop
- increase in climb performance and quicker off the blocks
- much bigger PITA when taking off the lower cowl
- lighter nose weight
- Sex appeal
The Aerocomposite that Deems and a few others have are supposed to be as fast or slightly faster than the Hartzell and you can have them painted for a couple point bump in the aforementioned sex appeal.
Michael
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)] On Behalf Of Roxanne and Mike Lefever
Sent: Saturday, January 30, 2010 8:55 PM
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: Three Blade MT Propeller
Anyone on the list purchase the three blade MT and if so what is the opinion of this set up versus the Hartzell which is about 50%more expensive?
0123456789
0
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
|
|
| Back to top |
|
|
partner14
Joined: 12 Jan 2008
Posts: 540
Location: Granbury Texas
|
| Posted: Sun Jan 31, 2010 9:46 am Post subject: Three Blade MT Propeller |
|
|
Greg Nelson, out of Lincoln, Ca... former U-2 pilot, owns a rocket. Originally he had a 2 bade Hartzell, and then switched to a 3 blade MT. He said that the top end loss was only a few knots, and that climbout was very close to identical.... this is the info I used to finally make a decision on which way to go. Another positive aspect that noone has mentioned is that when you pull the mixture for shut down, IT STOPS, RIGHT NOW! I've watched lots of planes shut down, and that added weight of the 2 blade hartzell is just a really big heavy flywheel, so it turns several more revolutions, and the engine and aircraft rock around quite a bit.
Don McDonald
--- On Sun, 1/31/10, Tim Olson <Tim(at)myrv10.com> wrote:
| Quote: |
From: Tim Olson <Tim(at)myrv10.com>
Subject: Re: Three Blade MT Propeller
To: "rv10-list(at)matronics.com" <rv10-list(at)matronics.com>
Date: Sunday, January 31, 2010, 9:05 AM
I don't think there have ever been any numbers from non-souped engines to show the aerocomposite being faster on a same cowl/engine combo. Not saying it isn't true, but to date I think the only KNOWN data point is the MT is just the slightest bit slower...not much. The aerocomposite might be faster or equal, but no real solid side by side flight has been done like with the MT. It is a beautiful prop, regardless.
Tim
On Jan 31, 2010, at 10:36 AM, "RV Builder (Michael Sausen)" <rvbuilder(at)sausen.net (rvbuilder(at)sausen.net)> wrote:
| Quote: |
General consensus is that with the MT you get:
- a couple not decrease in top end
- a much smoother prop
- increase in climb performance and quicker off the blocks
- much bigger PITA when taking off the lower cowl
- lighter nose weight
- Sex appeal
The Aerocomposite that Deems and a few others have are supposed to be as fast or slightly faster than the Hartzell and you can have them painted for a couple point bump in the aforementioned sex appeal.
Michael
From: owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Roxanne and Mike Lefever
Sent: Saturday, January 30, 2010 8:55 PM
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: Three Blade MT Propeller
Anyone on the list purchase the three blade MT and if so what is the opinion of this set up versus the Hartzell which is about 50%more expensive?
0123456789
0
|
1
|
[quote][b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
_________________
Don A. McDonald
40636 |
|
| Back to top |
|
|
roxianmike(at)msn.com
Guest
|
|
| Back to top |
|
|
roxianmike(at)msn.com
Guest
|
|
| Back to top |
|
|
daveleikam(at)wi.rr.com
Guest
|
| Posted: Sun Jan 31, 2010 9:46 pm Post subject: Three Blade MT Propeller |
|
|
I was on the fence between an MT prop and 2 blade Hartzell. Other than cost and performance, a big consideration I remember hearing from Van's was that if an MT blade gets chipped, the prop should not be flown but sent off for inspection and repair before further flight. The aluminum Hartzell could be field dressed depending on the damage and flown again quickly. This one advantage along with reports two blade props have the best top end finalized my decision. Reports also say having the two blade Hartzell balanced along with the inherent smoothness of the 540's we all run make them very smooth. The only advantages I remember from my research were, better ground clearance and less noise from shorter blades, lighter and better looking.
Dave Leikam
RV-10 #40496
N89DA
Muskego, WI
[quote] ---
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
|
|
| Back to top |
|
|
Kelly McMullen
Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ
|
| Posted: Mon Feb 01, 2010 5:46 am Post subject: Three Blade MT Propeller |
|
|
All 3 brands of the composite 3 bladed props are less likely to get
nicks or chips in the leading edge than an aluminum prop, because they
have metal leading edges made of metals more resistant to such wear
and tear than aluminum is. I think any builder understands how easily
aluminum is damaged. 3 blades give better acceleration and climb, but
the RV-10 has such good acceleration and climb already that you are
less likely to notice those benefits.
On Sun, Jan 31, 2010 at 10:41 PM, Dave Leikam <daveleikam(at)wi.rr.com> wrote:
| Quote: |
I was on the fence between an MT prop and 2 blade Hartzell. Other than cost and performance, a big consideration I remember hearing from Van's was that if an MT blade gets chipped, the prop should not be flown but sent off for inspection and repair before further flight. The aluminum Hartzell could be field dressed depending on the damage and flown again quickly. This one advantage along with reports two blade props have the best top end finalizedmy decision. Reports also say having the two blade Hartzell balanced along with the inherent smoothness of the 540's we all run makethemvery smooth. The only advantages I remember from my research were, better ground clearance and less noise from shorter blades, lighter and better looking.
Dave Leikam
RV-10 #40496
N89DA
Muskego, WI
-----
|
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor
KCHD |
|
| Back to top |
|
|
lessdragprod(at)aol.com
Guest
|
| Posted: Mon Feb 01, 2010 6:11 am Post subject: Three Blade MT Propeller |
|
|
Actually, it is an easy answer. The stainless steel leading edge on MT propellers is three times more resistant to sand erosion than aluminum.
When I was going through the certification class at MT Propeller in Germany, I disassembled a propeller in for overhaul from Iceland. The leading edges were dented from the rocks that they picked up while doing their engine run up (rock runway). Since there were no cracks in the dents, the propeller blades were airworthy as is. They just looked pretty bad. During overhaul, the stainless steel leading edge were replaced. The overhauled propeller looked like a new propeller.
There is damage and repair criteria in the installation and operation manual. Basically, if the fiberglass shell is damaged, it is patched with 5 minite epoxy.
At Sun-N-Fun one year, a Velocity had to do a go around, and the MT propeller tips hit the runway. It took about an inch off each blade tip. The blades were all trimmed to the same length and the exposed wood on the tips were sealed with 5 minute Epoxy.
One of my F-1 customers removed 3 inches from the tip of each blade on his 3 blade MT Propeller on take off (fighting a cross wind). He noticed this when he landed. (The concrete had done an excellent job of evenly "sanding" each blade tip.) We did an early overhaul. The blades wee sent to Germany for repair back to their original length. The customers engine was removed for a propeller strike inspection. The overhauled propeller with the original length blades was available to be installed when the engine was back on the F-1.
Jim Ayers
N130LD Less Drag Special (modified HR2) IO-540 exp with counterweighted 4 blade MT Propeller
(November BOLD)
--
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
