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spin testing and right control stick

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dale1rv6(at)comcast.net
Guest

Posted: Tue Jan 09, 2007 6:17 pm Post subject: spin testing and right control stick

Thanks for the information, I believe it will help others. My companion pulled the stick out when she was doing a take off. It was held in with about 2 pounds of friction, but we hit a big bump at 200 feet msl. Then I made a permanent connection up to floor level and a 5/16 threaded rod connection into a brass insert (from pool cue hardware) to make the upper section removable.  

Dale (the cuemaker)  

RV6a  

758 hours  

         

  

From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Arnold de Brie

 Sent: Tuesday, January 09, 2007 11:59 AM

 To: rv-list(at)matronics.com

 Subject: spin testing with unexpected result  

  

   

   

Here is an interesting/scaring story about spin-testing my RV7-A  

   

My aerobatics instructor took the plane up to do some spin-testing by himself, sitting alone in the left seat.  

   

He returned very enthusiastic about the spin handling and other aerobatic capabilities of the plane.  

   

So there we went. The two of us, me left ( a bit nervous of course) and the instructor right.  

   

I climbed to 6000 feet and he should show me a 2 turn spin first.  

   

Two fast turns  then opposite rudder, stick forward………………and then he yelled at me keeping the right stick loose in his hand……….RECOVER!!!!!!!  

   

   

So I had to do it myself and I mean all by myself.  

No problems however and we could have quite a good laugh about it.  

   

   

Lesson learnt here; we better find a way of securing this passenger stick.  

   

   

Arnold de Brie    

   

RV7A  

PH-PWP  

   

The Netherlands  

   

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rv7(at)b4.ca
Guest

Posted: Tue Jan 09, 2007 10:03 pm Post subject: spin testing and right control stick

On 18:16 2007-01-09 "Dale Walter" <dale1rv6(at)comcast.net> wrote:

 	  Quote: 	
		   Thanks for the information, I believe it will help others. My

 companion pulled the stick out when she was doing a take off. It was

 held in with about 2 pounds of friction, but we hit a big bump at 200

 feet msl. Then I made a permanent connection up to floor level and a

 5/16 threaded rod connection into a brass insert (from pool cue

 hardware) to make the upper section removable.


	


750 hours later it sounds like you might have a good solution, but just in

case others try to duplicate this just consider that pool cue hardware is

designed for loading along the axis of a pool cue.  It's not designed to be

bent back and forth at that joint as one would by exerting control forces

on the stick.



It may be that the loads are too low to matter for a good hefty cue joint,

but i'd hate to see the spindle fatigue on someone because they didn't at

least consider it.  



-Rob

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jhstarn(at)verizon.net
Guest

Posted: Tue Jan 09, 2007 11:07 pm Post subject: spin testing and right control stick

Many years ago when I was in high school (1957) I was a victim of mistaken 

identity. Was playing pool at a local bowling alley. Some skirt told her 

boyfriend that a guy in a red shirt made a pass at her. I was wearing a red 

shirt. He stormed in, grabbed a pool cue from a player (by the thin end) and 

as I was lining up for a shot he hit me across nose/eye area. The screwed 

together center broke. Knocked me out cold, both eyes bloodied & shut tight. 

He came in with 2 buddies for backup BUT there were more than a dozen of my 

football teammates there. They called the cops, arrested him and sent me to 

the hospital. Nothing broken but Doc. said it was lucky he didn't pick up a 

solid cue or he could have killed me.

IF I were going to use the screw idea, which sounds a good one, I'd use 

either an AN bolt or an exhaust stud. Almost anything but brass.   KABONG 

Do Not Archive. HRII N561FS

PS: We drilled & used a AN bolt & fiber lock nut on both sticks.



---

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