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[Probable Spam] Help choosing a design

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larry(at)macsmachine.com
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Posted: Mon Apr 06, 2009 6:07 am Post subject: [Probable Spam] Help choosing a design

Hi Ernie,

Either aircraft is a good choice. You'll have to decide if you're going 

to fly in short grass strips or stay mostly on longer hard surface airports

and also if speed makes any difference to you.   These are pretty close, 

either will be a blast to fly. For building though, I found the Zenith 

aircraft

a real pleasure to do from plans. You can buy any component you're not 

be able to do yourself. I seriously like the HDS and have flown the HD too.

The HD and the 650 will provide much more climb capability than a HDS. 

My HDS meets the performance requirements for LSA, but some don't

as it has to be set right to get there. I'd think the 650 might be a 

better choice as Zenith has put the 601XL as the latest model to move 

from the HD.

Still your decision to make and welcome to the forum.



I like the Subaru, if a few pounds heavier than the Rotax, it's much 

less costly and is just as reliable as any of them. Car gas is cheaper 

than 100LL too

so if you decide to go that way the path has been cleared for success a 

long time ago. If I can be of help just ask.



Larry McFarland 601HDS at www.macsmachine.com



ejohns wrote:

 	  Quote: 	
		   



 I have been lurking on this forum for some time and dreaming of building a Zenith design. I have narrowed my choices down to either the 601 HD or the 650. I have chosen these two designs as each can be built and flown as an  LSA. I like the increased payload capabilities, styling, speed potential, and ease of construction of the 650, but I am also intrigued by the capabilities and efficiency of the HD with a smaller engine. I would appreciate anyones insight about this before I purchase the plans.



 Thanks in advance.

 Ernie

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ejohns

Joined: 02 Apr 2009
Posts: 6
Location: Brunswick, Ga

Posted: Mon Apr 06, 2009 10:04 am Post subject: Re: [Probable Spam] Help choosing a design

Larry



Thank you for your reply. Most of my flying will be done from paved strips, but I would like to have the ability to fly in and out of the occasional grass strip. I have compared the the speed potential from the published information and there doesn't seem to be a lot of difference between the two. Actual performance data from the XL with different engine choices is available readily, but actual data on the HD and different engines is sketchy at best. Could you suggest where I might be able to find a more data on th HD?



Again let me thank you for your response and I assure you this is not spam I am merely trying to gather additional information with which to make an informed decision.



Thanks

Ernie

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larry(at)macsmachine.com
Guest

Posted: Mon Apr 06, 2009 11:55 am Post subject: [Probable Spam] Help choosing a design

You're right Ernie,

There's less than 10-15 mph difference between the 650 and the HD. The 

Corvair will pull you along faster by another 5 mph, perhaps in the 

neighborhood

of  115 mph, 5 mph faster than the Subaru. The Subaru has more torque on 

the climb because of the redrive/horsepower curve.

The matronics archives provide a lot of space from which to obtain data 

and opinions on flight, speed, problems with building and handling etc.

Magazines like Kitplanes have had articles on the HD that can be 

reviewed on computer. Sport Aviation also has had some.

I'd advise a Google search too.



Larry

ejohns wrote:

 	  Quote: 	
		   



 Larry



 Thank you for your reply. Most of my flying will be done from paved strips, but I would like to have the ability to fly in and out of the occasional grass strip. I have compared the the speed potential from the published information and there doesn't seem to be a lot of difference between the two. Actual performance data from the XL with different engine choices is available readily, but actual data on the HD and different engines is sketchy at best. Could you suggest where I might be able to find a more data on th HD?



 Again let me thank you again for your response and I assure you this is not spam I am merely trying to gather addition information with which to make an informed decision.



 Thanks

 Ernie





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 http://forums.matronics.com/viewtopic.php?p 38010#238010

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ejohns

Joined: 02 Apr 2009
Posts: 6
Location: Brunswick, Ga

Posted: Mon Apr 06, 2009 1:52 pm Post subject: Re: [Probable Spam] Help choosing a design

Larry



Thank you very much for all your help. I will do as you suggest and see what I can find with a google search.



Thanks again

Ernie

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hills(at)sunflower.com
Guest

Posted: Mon Apr 06, 2009 3:08 pm Post subject: [Probable Spam] Help choosing a design

Ya, my HDS also meets the LSA requirements. To get the stall speed down, I

lowered the ailerons about 3% down (to act like flapperions) and also moved

the CG closer to the aft limit (which limits my turtle deck weight limit to

35 lbs). All this drops the stall down to 50 or 51 mph. I fly with VW

engine.



Roger



--

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