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601 Landing Gear Height

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oldguyflier(at)yahoo.com
Guest

Posted: Tue Dec 05, 2006 1:00 pm Post subject: 601 Landing Gear Height

Hello, List,



In the latest "EAA Sport Pilot", in the cover article on the CH601XL, the reviewer discusses the landing manners.  He says that the AMD planes have a taller gear than the plans-built version, allowing better full-stall landings.  Does anyone on the list know that this is true, and what the difference is?



Does anyone know the dimensions of the Aircraft Spruce composite gear?  Who makes their gear?  (the guy who answered the phone at AS had no idea)



I am exploring landing gear options, as well as the use of vortex generators.  They allow a higher angle of attack, which requires a higher deck angle on landing to be of use there, so landing gear hieght is important there, too.



Thanks in advance,

John Collins



   [quote][b]

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leinad

Joined: 19 Sep 2006
Posts: 283
Location: Central Virginia

Posted: Tue Dec 05, 2006 6:11 pm Post subject: Re: 601 Landing Gear Height

John

I bought and plan to use the ACS composite gear for my XL, but I have to say that in hind sight, it was probably a mistake.



You are right, the gear is not the same dimensions.  It's just a tad taller, and MUCH narrower.  If I've done my calculations right the XL plans call for a gear that is 18 1/4" tall.  The composite gear will is 19 3/4" tall.  The plans call for a gear 77 1/2 inches wide, while the composite gear is only 69 1/2" wide if you follow the manufacturers installation instructions (which by the way are scant).



In my opinion it is questionable to call this an XL landing gear as it takes a significant design change to install the gear, as it comes in 2 parts which must be bolted to the air frame.



Another draw back:  It took 7 months to get the parts.



The advantage, less weight.. Lots less weight!



ACS gets the parts from a Czech company called ComLet.  You could go direct to them at www.comlet.cz



Take care.

Dan Dempsey



 	  Quote: 	
		  Hello, List, 



In the latest "EAA Sport Pilot", in the cover article on the CH601XL, the reviewer discusses the landing manners. He says that the AMD planes have a taller gear than the plans-built version, allowing better full-stall landings. Does anyone on the list know that this is true, and what the difference is? 



Does anyone know the dimensions of the Aircraft Spruce composite gear? Who makes their gear? (the guy who answered the phone at AS had no idea) 



I am exploring landing gear options, as well as the use of vortex generators. They allow a higher angle of attack, which requires a higher deck angle on landing to be of use there, so landing gear hieght is important there, too. 



Thanks in advance, 

John Collins

- The Matronics Zenith-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:

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_________________
Scratch building XL with Corvair Engine

NYTerminat(at)aol.com
Guest

Posted: Tue Dec 05, 2006 6:45 pm Post subject: 601 Landing Gear Height

Dan,

  

 I also ordered and received the Comlet 2 pc gear for my 701. I was  interested in replacing my aluminum gear to reduce the weight of my 701. I was  under the impression that this was a direct replacement gear, NOT. I am not  interested in redesigning the undercarriage and contacted ACS of my displeasure  that this gear will not fit without major redesign work. They wrote me back  saying they were going to contact the manufacturer, but I haven't heard anything  yet. This was over one month ago. I guess it is time to write again to find out  what is going on. I would have loved to use the gear but not since I have I have  already finished building and painting.

  

 Bob Spudis

 N701ZX  CH701/912S/87+hrs

  

 hoping the snow will hold off for a while

  

  

  

 In a message dated 12/5/2006 9:13:26 P.M. Eastern Standard Time,  leinad(at)hughes.net writes:

  	  Quote: 	
		  -->    Zenith-List message posted by: "leinad"    <leinad(at)hughes.net>



John

I bought and plan to use the ACS    composite gear for my XL, but I have to say that in hind sight, it was    probably a mistake.



You are right, the gear is not the same    dimensions.  It's just a tad taller, and MUCH narrower.  If I've    done my calculations right the XL plans call for a gear that is 18 1/4"    tall.  The composite gear will is 19 3/4" tall.  The plans call for    a gear 77 1/2 inches wide, while the composite gear is only 69 1/2" wide if    you follow the manufacturers installation instructions (which by the way are    scant).



In my opinion it is questionable to call this an XL landing    gear as it takes a significant design change to install the gear, as it comes    in 2 parts which must be bolted to the air frame.



Another draw    back:  It took 7 months to get the parts.

The advantage, less    weight.. Lots less weight!



ACS gets the parts from a Czech company    called ComLet.  You could go direct to them at www.comlet.cz



Take    care.

Dan Dempsey

 	  Quote: 	
		   Hello, List, 

 

 In the    latest "EAA Sport Pilot", in the cover article on the CH601XL, the reviewer    discusses the landing manners. He says that the AMD planes have a taller gear    than the plans-built version, allowing better full-stall landings. Does anyone    on the list know that this is true, and what the difference is? 

    

 Does anyone know the dimensions of the Aircraft Spruce composite    gear? Who makes their gear? (the guy who answered the phone at AS had no idea)    

 

 I am exploring landing gear options, as well as the use of    vortex generators. They allow a higher angle of attack, which requires a    higher deck angle on landing to be of use there, so landing gear hieght is    important there, too. 

 

 Thanks in advance, 

 John    Collins 


	




--------

Scratch building XL with Corvair    Engine





Read this topic online    here:



http://forums.matronics.com/viewtopic.php?p=79471#79471

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  [quote][b]

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601zv(at)ritternet.com
Guest

Posted: Tue Dec 05, 2006 7:17 pm Post subject: 601 Landing Gear Height

I just checked my Grove gear to compare. It's about 20-3/4" high and 73" 

wide. It saves about 11 pounds ( 32 instead of 43).



---

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