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04-10-2017, 07:05 AM
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Join Date: Mar 2015
Location: rimini italy
Posts: 30
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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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04-14-2017, 09:33 AM
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Join Date: Feb 2006
Location: Redmond Wash
Posts: 96
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props
Stay tuned for an announcement from McCauley at Oshkosh this summer.
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04-15-2017, 10:43 AM
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Join Date: Feb 2005
Location: Central Alabama
Posts: 303
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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
__________________
Hwood 
N469SH / "Crazy Woman" (sold)
Working on Another -8
Exempt but paid
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04-15-2017, 04:34 PM
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Join Date: Jan 2005
Location: NC25
Posts: 3,507
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Quote:
Originally Posted by WhirlWind Propellers
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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.
__________________
Gary A. Sobek
NC25 RV-6 Flying
3,400+ hours
Where is N157GS
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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04-15-2017, 05:30 PM
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Join Date: Jan 2005
Location: Charlottesville, Virginia
Posts: 1,230
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price
Quote:
Originally Posted by RV6_flyer
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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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.
__________________
Bob Martin
RV-6, 0-360 Hartzell C/S, Tip up, 1200+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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06-13-2017, 02:18 AM
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Join Date: May 2005
Location: Rescue, CA. KROB
Posts: 352
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Does anyone have a weight of the HRT prop?
__________________
Rob Lasater
Rv-14 flying baby, yeah.
Paid Dec 2019
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06-13-2017, 02:29 AM
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Join Date: Dec 2006
Location: Coventry. England
Posts: 614
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Comparison
Quote:
Originally Posted by Bob Martin
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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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?
__________________
http://www.aerobuilder.blogspot.com
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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06-13-2017, 05:08 AM
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Join Date: Jan 2005
Location: Charlottesville, Virginia
Posts: 1,230
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not yet
Quote:
Originally Posted by WAM120RV
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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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.
__________________
Bob Martin
RV-6, 0-360 Hartzell C/S, Tip up, 1200+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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06-13-2017, 08:35 AM
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Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 2,596
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What is the tear down spec for the HRT prop?
Carl
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06-13-2017, 10:57 AM
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Join Date: Jan 2005
Location: Charlottesville, Virginia
Posts: 1,230
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WW
Quote:
Originally Posted by Carl Froehlich
What is the tear down spec for the HRT prop?
Carl
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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.
__________________
Bob Martin
RV-6, 0-360 Hartzell C/S, Tip up, 1200+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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