DUC Prop 300-Hour Report

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drdehave
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DUC Prop 300-Hour Report

Postby drdehave » Mon Apr 28, 2014 10:46 pm

Guys:

My previous posts stated my exuberance for the DUC Swirl 3-blade Inconel, ground adjustable propeller I bolted to the nose of my Sting on 06/21/2013. Well, whilst sailing along today, I blew through the 300-hour mark on this baby and decided to post an "Am I still satisfied?" update.

Yep! Still the best thing I ever did to this airplane! The prop still looks like new, with not a nick or scratch. It is still meeting all my performance expectations and then some. In fact, the more it breaks in, the more it seems to perform like a constant-speed prop. For example, on climb-out at 70 knots, it barely pulls the necessary 5200 engine RPM, but pull the nose up a bit to 60 knots Vy and engine RPM rises to well into the 5200s. And speed? Well, you've seen my videos--that prop will pull the airplane 120 knots all day, no sweat.

Well, that's my story--and I'm sticking to it. How 'bout you other pilots who put the DUC on your baby? Are you still happy?

Rich
Sting Flight (Flying the Sting LSA)
http://www.youtube.com/user/9162069934/featured

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drdehave
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Re: DUC Prop 300-Hour Report

Postby drdehave » Sat Oct 25, 2014 10:24 am

Update October 25, 2014 for DUC Propeller Owners:

I've blown through 500 hours on this prop now, in just about a year and a half, and just could not be any happier with it--except for one thing. I've been fretting about that ominous TBO statement from the manufacturer (in France): "At 800 hours send it to us. We'll check it over and if it is 'good,' we'll send it back, authorized for another 800 (I'm paraphrasing) hours."

Well, last week I got some relief from that worry. My mechanic, Bill Sherlock, was as my hangar rebuilding my carbs and overhauling my gearbox. And I discovered the great news: He's a DUC prop distributor AND has been authorized by DUC to do those 800-hour inspections. So, when it comes time, not only will I NOT be sending my prop off to a big, black hole in France, I won't even need to send it out of Californica!

So, DUC owners, keep that name, this post, or Aerotrek, in mind. Bill is also west coast distributor and one of the maintenance gurus for Aerotrek.

Rich
Last edited by drdehave on Sat Oct 25, 2014 12:52 pm, edited 1 time in total.
Sting Flight (Flying the Sting LSA)
http://www.youtube.com/user/9162069934/featured

Wm.Ince
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Re: DUC Prop 300-Hour Report

Postby Wm.Ince » Sat Oct 25, 2014 11:40 am

drdehave wrote:Update October 25, 2014 for DUC Propeller Owners:

I've blown through 500 hours on this prop now, in just about a year and a half, and just could not be any happier with it--except for one thing. I've been fretting about that ominous TBO statement from the manufacturer (in France): "At 800 hours send it to us. We'll check it over and if it is 'good,' we'll send it back, authorized for another 800 (I'm paraphrasing) hours."

Well, last week I got some relief from that worry. My mechanic, Bill Sherlock, was as my hangar rebuilding my carbs and overhauling my gearbox. And I discovered the great news: He's a DUC prop distributor AND has been authorized by DUC to do those 800-hour inspections. So, when it comes time, not only will I NOT be sending my prop off to a big, black hole in France, I won't even need to send it out of Californica!

So, DUC owners, keep that name, this post, or Aerotrek, in mind. Bill is also west coast distributor and maintenance guru for Aerotrek.

Rich
Rich,

Thanks for the info.
Does he have a website?
Phone contact?
Bill Ince
CTSW
Retired Heavy Equipment Operator

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drdehave
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Re: DUC Prop 300-Hour Report

Postby drdehave » Sat Oct 25, 2014 11:47 am

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http://www.youtube.com/user/9162069934/featured

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drseti
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Re: DUC Prop 300-Hour Report

Postby drseti » Sat Oct 25, 2014 12:31 pm

FWIW, I've been doing Aerotrek maintenance and inspections on the other side of the country:

Http://avsport.org/maint
The opinions posted are those of one CFI, and do not necessarily represent the FAA or its lawyers.
Prof. H. Paul Shuch, Ph.D., CFII, LSRM-A/GL/WS/PPC, iRMT
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dstclair
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Re: DUC Prop 300-Hour Report

Postby dstclair » Sat Nov 01, 2014 11:38 am

Don't have the 300 plus hours Rich has but went up today and did performance tests on my DUC. 5500rpm, 4260 DA, 127kts TAS. Not too shabby :D
dave

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drdehave
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Re: DUC Prop 300-Hour Report

Postby drdehave » Sat Nov 01, 2014 5:29 pm

"5500rpm, 4260 DA, 127kts TAS. Not too shabby"

Indeed! And I've become convinced that the more it breaks in, the better it gets. I may find a downside to it, eventually, but not yet.
Sting Flight (Flying the Sting LSA)
http://www.youtube.com/user/9162069934/featured

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drdehave
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Re: DUC Prop 300-Hour Report

Postby drdehave » Thu Feb 05, 2015 10:50 pm

Ah, today, my mechanic was here, working out some engine "kinks" on my 1,619-hour Sting Sport, so when we finished that, I asked him if he could re-certify my DUC Swirl prop for another 800 hours (since he's a DUC distributor and has been factory-authorized to do 800-hr inspections).

He pulled the prop and hubs off and performed a close inspection. He agreed with my assessment: It still looked essentially just like it did new, in June 2013--530 hours ago! My next TBO is in 800 more hours!

I love this prop! (No, they're not paying me. Maybe they will?)
Sting Flight (Flying the Sting LSA)
http://www.youtube.com/user/9162069934/featured

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dstclair
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Re: DUC Prop 300-Hour Report

Postby dstclair » Sat Jun 27, 2015 12:24 pm

drdehave wrote:"5500rpm, 4260 DA, 127kts TAS. Not too shabby"

Indeed! And I've become convinced that the more it breaks in, the better it gets. I may find a downside to it, eventually, but not yet.

I do believe you are correct, sir! Today I was at 5600rpm, 5500', DA 6600', 132kts TAS.
dave

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drdehave
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Re: DUC Prop 300-Hour Report

Postby drdehave » Sat Jun 27, 2015 12:42 pm

Sweet! I'm heading towards my first 800 hours on mine now, and still love it. Just don't expect it to pull well taxiing up hill with wind behind; you'll think your brakes are locked up.
Sting Flight (Flying the Sting LSA)
http://www.youtube.com/user/9162069934/featured


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