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To Hinge or not to Hinge

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Ianrat

Joined: 31 Mar 2008
Posts: 43
Location: Brisbane AUSTRALIA

Posted: Mon Mar 31, 2008 2:46 am Post subject: To Hinge or not to Hinge

In the 601 XL kit I have the option to use the original aileron hinge or the newer piano hinge. 



Can any one tell the different qualities of both systems. I have conflicting reports on both. One says the piano hinge is lighter to fly with.



Thank you

Ianrat

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psm(at)ATT.NET
Guest

Posted: Mon Mar 31, 2008 5:16 am Post subject: To Hinge or not to Hinge

Hi Lanrat,



I think the hingeless ailerons are a better choice, but either choice 

will produce a nice airplane.  The differences are relatively minor.



The hingeless ailerons are stiff.  This is not a problem since it is 

the force transferred from your pressure on the stick to the roll 

performance of the airplane that counts rather than the movement of 

the stick in the roll control direction.  Under most circumstances 

the stick doesn't actually move a noticeable amount.



The hinged ailerons probably provide more stick movement under some 

conditions, but actually provide less performance.  This is because 

the hingeless ailerons are perfectly sealed while some air flow leaks 

around and through the hinges.  This seal becomes important when 

considering the low speed roll performance of the plane.



Still, my main point is the decision is not a major one.



Paul

XL fuselage

At 03:46 AM 3/31/2008, you wrote:



 	  Quote: 	
		  In the 601 XL kit I have the option to use the original aileron 

hinge or the newer piano hinge.



Can any one tell the different qualities of both systems. I have 

conflicting reports on both. One says the piano hinge is lighter to fly with.



Thank you

Ianrat

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daveaustin2(at)primus.ca
Guest

Posted: Mon Mar 31, 2008 5:36 am Post subject: To Hinge or not to Hinge

I had HD wings for 5 years without the hinges - then 10 years with HDS wings 

with hinges.  Aileron control is somewhat lighter for small inputs and 

significantly lighter for large inputs.

I found the hinges to be less tiring on long trips  and gave the a/c 

"better" balance between aileron and elevator control.  I say "better" as 

elevator control is very light compared with ailerons with either no hinge 

or hinge.

Dave Austin  601HDS - 912, Spitfire Mk VIII

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bill_dom(at)yahoo.com
Guest

Posted: Mon Mar 31, 2008 6:22 am Post subject: To Hinge or not to Hinge

The hingeless are better aerodinamically speaking, slightly lighter in weight and simpler to assemble. I chose the piano hinge option mostly because I can remove the aileron without removing any rivets - removing the ailerons and flaps simplify a lot of issues with trailering and storing the plane in its trailer - but this is something most people won't need to do.



William Dominguez

Zodiac 601XL plans

Miami Florida

http://www.geocities.com/bill_dom



Ianrat <ianrat(at)powerup.com.au> wrote:[quote] --> Zenith-List message posted by: "Ianrat" 



In the 601 XL kit I have the option to use the original aileron hinge or the newer piano hinge. 



Can any one tell the different qualities of both systems. I have conflicting reports on both. One says the piano hinge is lighter to fly with.



Thank [quote][b]

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pchapman(at)ionsys.com
Guest

Posted: Mon Mar 31, 2008 7:49 am Post subject: To Hinge or not to Hinge

Like Dave Austin, I also found the hinged ailerons better in flight. 

For very small roll control adjustments I didn't mind the hingeless. 

But when on final approach, at lower speed, making bigger corrections 

for crosswinds and gusts, there I really noticed the awkwardness of 

having very light pitch control, yet heavier roll pressures. The roll 

pressures were not "too heavy" on their own, but the control harmony 

certainly could have been better. (This was on a 601 HD.)



Peter Chapman

Toronto, ON

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amyvega2005(at)earthlink.
Guest

Posted: Mon Mar 31, 2008 9:48 am Post subject: To Hinge or not to Hinge

the skin hinge as I call it is a little stiffer, but mostly you have to hold the stick in the direction you want to turn or it flexes back to neutral.  The hinge is like any other plane, turn and the plane will continue to turn.  The skin hingless system has a neutral deflection memory.  Thats it.



Juan



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amyvega2005(at)earthlink.
Guest

Posted: Mon Mar 31, 2008 10:13 am Post subject: To Hinge or not to Hinge

Not true,  if done right it is not any more aerodynamic than hingeless.



Juan



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Gig Giacona

Joined: 10 Jan 2006
Posts: 1416
Location: El Dorado Arkansas USA

Posted: Mon Mar 31, 2008 10:35 am Post subject: Re: To Hinge or not to Hinge

The folks that sell gap seals will be surprised to hear that. The stopping of airflow through the hinge is what those things do.



 	  amyvega2005(at)earthlink. wrote: 	
		  Not true,  if done right it is not any more aerodynamic than hingeless.



Juan



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W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR

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