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 41 
 on: Today at 12:02:24 AM 
Started by Rusty Pieper - Last post by Robert Storick
decrease line spacing at the handle

 42 
 on: Yesterday at 11:04:15 PM 
Started by Ty Marcucci - Last post by Ty Marcucci





Right, I've known Jim for ever it seems. First met him in 70 at a SLC meet. Cool cat. Just didn't want to use his name out loud, Jim is a pretty private guy. But I did love that Rapid Apparatus.  Hoff

 43 
 on: Yesterday at 10:52:00 PM 
Started by Ty Marcucci - Last post by Les Akre
Hello Ty

That "cat out of Salt Lake City" is none other than long time speed flyer Jim Rhodes.

Cheers, Les

 44 
 on: Yesterday at 10:41:38 PM 
Started by Ty Marcucci - Last post by Motorman
This brings up good memories of my friend Don Myers who campaigned an ETA in his FAI team racer the Quasar. Beautiful silver model with elliptical wing. Wonderful time for team race before big money and high speeds ruined the event.


MM

 45 
 on: Yesterday at 10:31:59 PM 
Started by Don Coe - Last post by Motorman
Moved the battery in line with the thrust line.

Would like to know how this turned out since I made a big effort to put my battery in the wing on my Banshee.


MM

 46 
 on: Yesterday at 10:19:34 PM 
Started by Ty Marcucci - Last post by George Hostler
Yes it's an ETA 15 diesel [...]Made by the great Ken Bedford in the UK. "ETA" is a alphabetical Greek symbol used in Physics, the symbol is embossed on the front of the crankcase.

It is interesting that Ken would name it after Greek symbology. I was curious as to what may have prompted him to call it an "ETA".

http://en.wikipedia.org/wiki/Eta

Closest I could find that might possibly be a reason is ETA is used for example for one ideal engine cycle, Carnot Cycle efficiency.

http://en.wikipedia.org/wiki/Carnot_heat_engine

It's been a long time since I studied thermodynamics and now it is all Greek to me.  Grin


 47 
 on: Yesterday at 10:13:08 PM 
Started by Rusty Pieper - Last post by Motorman
I wouldn't shorten the tail, just limit and slow the elevator travel with a longer horn but, you need the face of the motor mount about 3/4" maybe more ahead of the leading edge on a wing that big. Mock up the engine with a wooden block behind it until you find the right balance point then re-build the front end. You want it to balance half way between the high point of the air foil and the leading edge or farther forward. Also, the controls on a 1/2a need to be super loose.

MM

 48 
 on: Yesterday at 10:02:02 PM 
Started by David Ruff - Last post by tom brightbill
I believe that the only full fuse take apart from RSM is the Thunder Gazer.  The wing comes off as one piece, and the runner and aft part of the fin unbolt to allow the stab to be removed (unbolted).

 49 
 on: Yesterday at 10:00:25 PM 
Started by Rusty Pieper - Last post by Paul Smith
Good idea about shortening the tail.

A tall control horn does not cure tail-heaviness.

 50 
 on: Yesterday at 09:59:11 PM 
Started by Paul Taylor - Last post by Terry Caron
   Don't put the groove in the shaft!  If anything, put it in the bearing. You certainly won't need a cutoff tool, in the few cases I did it. I managed with a right-angle scribe and just scratched it out. it needs to start at the the front where the crank comes out, and then diagonally go back to the intake.

     Brett

How deep did you scribe Brett, and is a single groove sufficient?

Terry

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