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Newbie with a prop ?

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kitfoxnick

Joined: 13 Apr 2008
Posts: 33
Location: Northern Maryland

Posted: Sun May 11, 2008 10:34 am Post subject: Newbie with a prop ?

I've been lurking in the shadows for along time. I've been fascinated by this little airplane and all the talk.  I am currently going for my light sport with 17.3 hrs down.  So two weeks ago I saw a nice model iv on barnstormers with 102 hrs and a trailer I bit the bullet threw my money down and now I have N433R sitting in the shop.  I've gone over it with a/p friend and everything looks good but the old gsc prop has got to go (5year, 500hr AD).  I ordered a new warp tapper tip to go in front of the 912ul.  My ? is what if anything do I have to do to keep the Faa happy.  Is this considered major under Far 21.93 and if so what procedure is necessary to keep my certificate valid.  

Thanks ,

Nick

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Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Sun May 11, 2008 1:18 pm Post subject: Newbie with a prop ?

How is your plane registered?  AB?  I can't speak for U.S., but I expect you

will be ok to do the swap and if you don't have the repairman cert you can

get your A&P to sign it off.



I expect the folks at Warp have come across this before.  Check with them.



Noel Loveys

AME Intern, RPP

Kitfox III-A, 582,B box

Ivo IFA, Aerocet 1100 floats





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_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

Tom Jones

Joined: 12 Mar 2006
Posts: 752
Location: Ellensburg, WA

Posted: Sun May 11, 2008 5:16 pm Post subject: Re: Newbie with a prop ?

 	  nick4853 wrote: 	
		  I've been lurking in the shadows for along time. I've been fascinated by this little airplane and all the talk.  I am currently going for my light sport with 17.3 hrs down.  So two weeks ago I saw a nice model iv on barnstormers with 102 hrs and a trailer I bit the bullet threw my money down and now I have N433R sitting in the shop.  I've gone over it with a/p friend and everything looks good but the old gsc prop has got to go (5year, 500hr AD).  I ordered a new warp tapper tip to go in front of the 912ul.  My ? is what if anything do I have to do to keep the Faa happy.  Is this considered major under Far 21.93 and if so what procedure is necessary to keep my certificate valid.  

Thanks ,

Nick 	




Nick, first congratulations on new airplane.  Excellent choice. 



The "Operating limitations", issued as part of the airworthiness certificate for your kitfox will explain when you must notify your local FSDO about changes to the airplane.  Installing a different make prop is a major change.  It probably says you must notify them in writing.  I would give your local FSDO a call first and ask what they need/want from you.



For what it is worth.  Anyone can work on an experimental aircraft.  The only signature needed in the aircraft log book is for the annual condition inspection.  That must be signed by the original builder who holds a repairman's certificate for that plane with it's serial number or, an A&P mechanic.

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_________________
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA

Guy Buchanan

Joined: 16 Jul 2006
Posts: 1204
Location: Ramona, CA

Posted: Sun May 11, 2008 8:29 pm Post subject: Newbie with a prop ?

At 11:34 AM 5/11/2008, you wrote:

 	  Quote: 	
		  Is this considered major under Far 21.93 and if so what procedure is 

necessary to keep my certificate valid.


	


         I agree with Tom, but you really should contact your local 

FSDO. Unfortunately there is a depressing lack of uniformity within 

the FAA, and you should probably please the folk who are going to be 

doing the inspection when you crash. (Actually I think it's the NTSB 

that does the inspecting, but the FAA might be there too.)

Guy Buchanan

San Diego, CA

K-IV 1200 / 582-C / Warp / 100% done, thanks mostly to Bob Ducar.

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Guy Buchanan
Deceased K-IV 1200
A glider pilot too.

Jim Shumaker

Joined: 09 Jan 2006
Posts: 106

Posted: Sun May 11, 2008 9:14 pm Post subject: Newbie with a prop ?

Nick

  

 A prop change requires a 5 hour fly off.  This will give you a chance to get the pitch right and do the climb and cruise numbers for the pilots hand book.  The 5 hours means no passengers and remaining within 25 miles of the airport.  Also all the required torquing tracking and re-torquing needs to be completed and logged.  The taper tip warp will fly much better than the GSC.  More power and better climb.  It was not required to have a re-inspection, only my sign off as the builder.

  

 Jim Shumaker

 ---

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Jim Shumaker

crazyivan

Joined: 25 Aug 2006
Posts: 62
Location: Pensacola

Posted: Mon May 12, 2008 6:42 am Post subject: Re: Newbie with a prop ?

I did exactly what you are doing.  I bought a new Ivoprop after I bought my Speedster because I found that the hub bolts were overtightened.



I bought the prop from kitfoxairctaftllc.com on the recommendation of the McBeans.  They consulted with Ivoprop directly.



I then contacted my local FSBO and told the guys what I intended to do.  They said as long as the manufacturer of the kit and the manufacturer of the prop recommend this new propeller then the 5 hour test period was not necessary.  They also cautioned that I follow the installation procedures exactly.  I had a copy of AC-43.13-1B/2A "Aircraft inspections, repairs and alterations" in hand.



Contact the Warp guys and get their concurrence that the prop you ordered is the proper propeller for your aircraft and engine combination.



I wrote a formal letter to the local FSDO and described in detail the deal with Kitfox LLC, the procedures I was going to use to install the new prop.  They wrote back a formal letter of acknowledgment and authorization to fly the aircraft without the test period.



I can't speak highly enough of the local FSDO guys.  They were very helpful, yet dedicated to their mission; ensuring I didn't do anything dangerous or against the regs.

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Dave
Piper PA-22/20

kitfoxnick

Joined: 13 Apr 2008
Posts: 33
Location: Northern Maryland

Posted: Wed May 14, 2008 5:27 pm Post subject: Re: Newbie with a prop ?

Thank you everyone that wrote in.  My model is EAB and my operating limitations do require that I contact the FSDO.  There seems to be alot of Warp props out there so I'm hoping the transition won't be too painful.  We'll see.

  	  Quote: 	
		  when you crash 	


Gary this isn't in the plans Lord willing



Thanks again.

I'll let you know how I make out.

Nick

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_________________
Nick Weiskopf
Norrisville, MD
kitfox !V-1200
Rotax 912ul

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