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CH601XL roll sensitivity & aileron control weight

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larry(at)macsmachine.com
Guest

Posted: Wed Oct 22, 2008 1:32 pm Post subject: CH601XL roll sensitivity & aileron control weight

Hi Kevin,

The aileron movement might be a little stiffer in roll because they 

depend on flexing the .016 aluminum rather than hinges.

Cables should not be too tight, but nearer 20-25 lbs rather than 

commercial aircraft 30-40 lbs. Likely it's the Zenith flex hinge

but you can remove that if it was done right and put in regular hinges 

if you want.  With the larger span, I'd expect the XL to

be a little more drawn out on roll response. And yes, the elevator is 

pitch sensitive, but you do get comfortable with that quickly..



Larry McFarland 601HDS at www.macsmachine.com



kevstewart wrote:

 	  Quote: 	
		   



 Hi All,



 I need some advice. Today I flew a very nicely finished XL (with a view to buying it) that has recently had the Y stick changed to the dual sticks.



 I have never flown a 601 before but I noted that the aircraft was quite sensitive in pitch on the elevators but very heavy in roll on the ailerons. Is this normal?



 I noted on the ground that the aileron movement from the P2 position may have been heavier than from the P1 position.



 Is it rigged too tightly or is this just how it is?



 Any advice gratefully received.



 Thanks,



 Kevin

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ideaz1(at)sbcglobal.net
Guest

Posted: Wed Oct 22, 2008 1:43 pm Post subject: CH601XL roll sensitivity & aileron control weight

Hi Kevin, I am just starting building (from scratch) an XL and I recently 

got checked out in a factory version and indeed the aileron control was very 

heavy to the point where I have borrowed a set of RV6 plans to copy their 

ailerons whitch are the lightest and smothest I've ever flown. If you're 

planning buying a finished plane it might be possible to modify the ailerons 

but could be a lot of work.



As this is my 3rd homebuilt I hae learned that the main reason for the heavy 

ailerons is that they are not balanced. That means that the hinges are at 

the very front of the aileron. If you look at other designs, especially 

aerobatic planes the hinge point may be as much as 25% rear of the leading 

edge. The effect of this is when deflcted the leading edge pressure offsets 

the trailing edge pressure, in the most extreme cases there is literally 0 

pressure required at the stick.



Hope thats not too much info, and if not enough, let me know...

Dirk Z

Carson City, Nv. USA



 Hi All,

 	  Quote: 	
		  

 I need some advice. Today I flew a very nicely finished XL (with a view to 

 buying it) that has recently had the Y stick changed to the dual sticks.



 I have never flown a 601 before but I noted that the aircraft was quite 

 sensitive in pitch on the elevators but very heavy in roll on the 

 ailerons. Is this normal?



 I noted on the ground that the aileron movement from the P2 position may 

 have been heavier than from the P1 position.



 Is it rigged too tightly or is this just how it is?



 Any advice gratefully received.



 Thanks,



 Kevin



 --------

 Recreational pilot flying out of

 EGHD Plymouth, UK.

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ideaz1(at)sbcglobal.net
Guest

Posted: Wed Oct 22, 2008 1:51 pm Post subject: CH601XL roll sensitivity & aileron control weight

---

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