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  #21  
Old 04-10-2017, 07:05 AM
toninialex toninialex is offline
 
Join Date: Mar 2015
Location: rimini italy
Posts: 16
Default HA blades upgrade

,HI all, my prop shop GT-Propellers is an EASA certified prop company for design and production of fixed pitch and CS propellers.
Most of us here in the shop are pilots and homebuilders so we got a deep love for experimental aircrafts .Just purchased a RV4 with some friends !
Up to now we have converted about 386 stock Hartzell cs propellers removing metal blades to evergreen wood/composite technology !
2,3 anf 5 bladed from 150 to 500 HP,several blades models are possible.
The most demanded by Rvers are the two blade 72/ and 74 with nickel leading guard. Weight loss is about 18/20 pounds. depends blades models.
All our blades follow rigid standard EASA and root safety factors is impressive. This is very safe and quick conversion Several US propellers shop has already installed our blades directly troublefree.
Just a recent comment from US operator installed on the Falco. http://www.seqair.com/Hangar/Letti/G...er/GTProp.html


To learn more, please feel free to reach me directly or our canadian support.

info@gt-propellers
humberto@puma-aircraft.com
More prop variety GT here :
https://www.facebook.com/GtProp/
https://www.facebook.com/yakpropellerexpert/

All the best.
Alex Tonini
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  #22  
Old 04-14-2017, 09:33 AM
drakerv drakerv is offline
 
Join Date: Feb 2006
Location: Redmond Wash
Posts: 92
Default props

Stay tuned for an announcement from McCauley at Oshkosh this summer.
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  #23  
Old 04-15-2017, 10:43 AM
Hwood Hwood is offline
 
Join Date: Feb 2005
Location: Central Alabama
Posts: 225
Default The other side

I think we are all in agreement that both of these composite wide blades are great performers......my question is this.. What effect do they have on glide distance with an engine out scenario? It has been mentioned that they are great for braking....would this also equate to a detrimental glide ratio after engine failure?

Just curious here
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  #24  
Old 04-15-2017, 04:34 PM
RV6_flyer's Avatar
RV6_flyer RV6_flyer is offline
 
Join Date: Jan 2005
Location: NC25
Posts: 2,894
Default

Quote:
Originally Posted by WhirlWind Propellers View Post

The HRT constant-speed propeller is sold through our constant-speed propeller division, Whirl Wind Aviation http://www.whirlwindaviation.com



No price listed. Need to get the price posted or listed on the website. Some of us like me, like to compare what is on the market to sell at this point in time and not speculate on what will be available in the future.
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NC25 RV-6
Flying
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Building RV-8 S/N: 80012

To most people, the sky is the limit.
To those who love aviation, the sky is home.
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  #25  
Old 04-15-2017, 05:30 PM
Bob Martin's Avatar
Bob Martin Bob Martin is offline
 
Join Date: Jan 2005
Location: Richmond, Virginia
Posts: 1,077
Default price

Quote:
Originally Posted by RV6_flyer View Post
No price listed. Need to get the price posted or listed on the website. Some of us like me, like to compare what is on the market to sell at this point in time and not speculate on what will be available in the future.
Just bought one of the 74HRT's at SNF....9,215 plus shipping!
SNF had a 5% discount for 8,754.
Includes custom PPG paint colors on blade and tips plus a primed spinner assembly.
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Bob Martin
RV-6, 0-360 Hartzell C/S, Tip up, 1150+TT
James extended cowl/plenum, induction, -8VS and Rudder. TSFlightline hoses. Oregon Aero leather seats.
D100-KMD150-660-TT ADI2- AS air/oil seperator. Vetterman exhaust with turndown tips.
Louisa, Virginia KLKU N94TB
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  #26  
Old 06-13-2017, 02:18 AM
Av8rRob's Avatar
Av8rRob Av8rRob is offline
 
Join Date: May 2005
Posts: 182
Default

Does anyone have a weight of the HRT prop?
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Rob Lasater
Rv-14 emp/fuse done working on wings and finish
Paid dec 2017
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  #27  
Old 06-13-2017, 02:29 AM
WAM120RV WAM120RV is offline
 
Join Date: Dec 2006
Location: Coventry. England
Posts: 593
Default Comparison

Quote:
Originally Posted by Bob Martin View Post
Just bought one of the 74HRT's at SNF....9,215 plus shipping!
SNF had a 5% discount for 8,754.
Includes custom PPG paint colors on blade and tips plus a primed spinner assembly.
Hi Bob can you give ups any performance figures, and are you replacing and old prop you can compare with, or is it a new fit?
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Steve Arnold
England

In completion stage of Loehle P5151
Built and now Flying G.BVLR Vans RV4
Rebuilt G.BDBD Tailwind
Rebuilt G BVTN Kitfox
Built G CDCD RV9A with WAM120
Riveted wings on Glastar G.LEZZ Now (G. SKUA)
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  #28  
Old 06-13-2017, 05:08 AM
Bob Martin's Avatar
Bob Martin Bob Martin is offline
 
Join Date: Jan 2005
Location: Richmond, Virginia
Posts: 1,077
Default not yet

Quote:
Originally Posted by WAM120RV View Post
Hi Bob can you give ups any performance figures, and are you replacing and old prop you can compare with, or is it a new fit?
We have not received the new WW prop yet. They said eight weeks lead time and it is just now eight weeks so it should be very soon.
Yes we are replacing a Hartzell paddle prop, HC-C2YK-1BF
We are planning some test flights before removing to compare the difference between the two, yes!

And once we are happy with the new WW 74HRT install, the Hartzell prop will be for sale.
HC-C2YK-1BF SN:CH33447B BLADE DESIGN F666A-4
This is the older standard Vans CS prop with the paddle blades before the Blended tips came out.
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Bob Martin
RV-6, 0-360 Hartzell C/S, Tip up, 1150+TT
James extended cowl/plenum, induction, -8VS and Rudder. TSFlightline hoses. Oregon Aero leather seats.
D100-KMD150-660-TT ADI2- AS air/oil seperator. Vetterman exhaust with turndown tips.
Louisa, Virginia KLKU N94TB

Last edited by Bob Martin : 06-13-2017 at 10:48 AM.
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  #29  
Old 06-13-2017, 08:35 AM
Carl Froehlich's Avatar
Carl Froehlich Carl Froehlich is online now
 
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 1,379
Default

What is the tear down spec for the HRT prop?

Carl
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  #30  
Old 06-13-2017, 10:57 AM
Bob Martin's Avatar
Bob Martin Bob Martin is offline
 
Join Date: Jan 2005
Location: Richmond, Virginia
Posts: 1,077
Default WW

Quote:
Originally Posted by Carl Froehlich View Post
What is the tear down spec for the HRT prop?

Carl
From 74 HRT online Manual:

7.1 Teardown Inspection Schedule
Refer to the original propeller data sheet for recommended
teardown inspection schedule. If the original data sheet
cannot be found please contact Whirl Wind Aviation directly
to confirm the recommend schedule for your propeller.

Carl,
I assume we will get more current info "with" the propeller.
I am also assuming it will be similar to previous WW models.
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Bob Martin
RV-6, 0-360 Hartzell C/S, Tip up, 1150+TT
James extended cowl/plenum, induction, -8VS and Rudder. TSFlightline hoses. Oregon Aero leather seats.
D100-KMD150-660-TT ADI2- AS air/oil seperator. Vetterman exhaust with turndown tips.
Louisa, Virginia KLKU N94TB
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