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Zodiac 601 "twitchy"

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taffy0687(at)yahoo.com
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Posted: Sat May 27, 2006 7:21 am Post subject: Zodiac 601 "twitchy"

Several times this morning I saw the term: "twithcy".   Please explain how it is ment.  Do you mean sensitive ?   thank you 

  Fritz---- Corvair



Edward Moody II <dredmoody(at)cox.net> wrote 

   Only the 

elevator response felt twichy to me in the demo at the factory and it was 

not extreme. The rest of the flight control response was brisk but not 

twichy in the least IMHO. It climbed at 900 fpm at about 95 IAS with two of 

us on board (about 370 lbs. total). Takeoff roll was about 500 feet or so 

(no flaps on takeoff).

Hope this info helps,



Ed Moody II

Rayne, LA

601XL / wings



		

---------------------------------

Blab-away for as little as 1/min. Make  PC-to-Phone Calls using Yahoo! Messenger with Voice.

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p.mulwitz(at)worldnet.att
Guest

Posted: Sat May 27, 2006 7:59 am Post subject: Zodiac 601 "twitchy"

Hi Fritz,



By "Twitchy" I mean unstable.  This is different from sensitive.



I have not flown an HDS, but I have seen comments by multiple owners 

suggesting you can't fly one cross country without an 

autopilot.  Apparently every little bit of bump in the air throws it 

off from the trimmed up attitude.  I assume it doesn't return to the 

trimmed attitude without help from the pilot or autopilot.



I did get a short demo flight in the factory XL demonstrator.  It 

seemed solid as a rock to me.  Indeed I was a little disappointed 

since I was expecting the "Twitchy" behavior I had heard so much 

about and got a much more docile experience.



"Sensitive" talks about how much force or movement you must apply to 

the controls to get a given attitude response.  I found the XL to be 

quite sensitive to forces on the center stick even though there was 

no perceptible movement of the stick when force was applied.  I was 

particularly pleased to note full aileron authority right down to 

stall speed - a quality rarely found in the certified airplanes I have flown.



Paul

XL wings



 	  Quote: 	
		  Several times this morning I saw the term: "twithcy".   Please 

explain how it is ment.  Do you mean sensitive ?   thank you

   Fritz---- Corvair


	


-

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dredmoody(at)cox.net
Guest

Posted: Sat May 27, 2006 11:44 am Post subject: Zodiac 601 "twitchy"

Exactly. As I use the term regarding control response in an airplane, 

twitchy means that the response is excessive (too much response and/or too 

quick in response) relative to the amount of control input. The main issue 

is that I have to become a better pilot to get fine incremental results. Not 

a deal breaker, just an objective comment...... I will definitely deal with 

it. It's a Damascus steel sort of issue; you get thrown in the fire then 

bent and beat with a hammer until you become something better than you were 

before.



Ed



 	  Quote: 	
		   



 Several times this morning I saw the term: "twithcy".   Please explain how 

 it is ment.  Do you mean sensitive ?   thank you

  Fritz---- Corvair



 Edward Moody II <dredmoody(at)cox.net> wrote

   Only the

 elevator response felt twichy to me in the demo at the factory and it was

 not extreme. The rest of the flight control response was brisk but not

 twichy in the least IMHO.

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larry(at)macsmachine.com
Guest

Posted: Sat May 27, 2006 12:15 pm Post subject: Zodiac 601 "twitchy"

Hi guys,

I've flown the HDS a lot on convective days, yet found no twitchy or 

diverting counterforces needed in the

23 ft wingspan.  I think it cuts through better than the larger wings 

because it has a higher wing-loading

than the HD or XL.  I've had worse experiences in a Cessna 150.



Larry McFarland - 601HDS at www.macsmachine.com

do not archive



Paul Mulwitz wrote:



 	  Quote: 	
		  



Hi Fritz,



By "Twitchy" I mean unstable.  This is different from sensitive.



I have not flown an HDS, but I have seen comments by multiple owners 

suggesting you can't fly one cross country without an 

autopilot.  Apparently every little bit of bump in the air throws it 

off from the trimmed up attitude.  I assume it doesn't return to the 

trimmed attitude without help from the pilot or autopilot.



I did get a short demo flight in the factory XL demonstrator.  It 

seemed solid as a rock to me.  Indeed I was a little disappointed 

since I was expecting the "Twitchy" behavior I had heard so much 

about and got a much more docile experience.



"Sensitive" talks about how much force or movement you must apply to 

the controls to get a given attitude response.  I found the XL to be 

quite sensitive to forces on the center stick even though there was 

no perceptible movement of the stick when force was applied.  I was 

particularly pleased to note full aileron authority right down to 

stall speed - a quality rarely found in the certified airplanes I have flown.



Paul

XL wings

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frank.hinde(at)hp.com
Guest

Posted: Sun May 28, 2006 8:41 am Post subject: Zodiac 601 "twitchy"

I have not flown an HDS, but I have seen comments by multiple owners

suggesting you can't fly one cross country without an autopilot.



In that case we have given you the wong impression...You can fly one

cross country very easily, its just that it is more tuned to yanking and

banking rather than flat and level cross coutry.



Frank



--

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mfothergill(at)sympatico.
Guest

Posted: Sun May 28, 2006 3:21 pm Post subject: Zodiac 601 "twitchy"

I wonder how I ever managed to fly from Toronto to Florida???

You can trim it to hands off. No problem.

Mike

UHS Spinners



Hinde, Frank George (Corvallis) wrote:

[quote] 

 

  I have not flown an HDS, but I have seen comments by multiple owners

 suggesting you can't fly one cross country without an autopilot.

 

 In that case we have given you the wong impression...You can fly one

 cross country very easily, its just that it is more tuned to yanking and

 banking rather than flat and level cross coutry.

 

 Frank

 

 --

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