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 51 
 on: Yesterday at 08:03:17 PM 
Started by Crist Rigotti - Last post by Crist Rigotti
Crist,

Sent you a PM.

James

Thanks James.

 52 
 on: Yesterday at 07:55:14 PM 
Started by Dwayne Donnelly - Last post by Dan Bregar
Have to agree with Wayne about the announcers.  You get sick of hearing them pretty quick.  By Sunday you just wish they would shut up.  But we don't go there to hear the announcers now do we.  Where else can we go to equal the Reno Race experience anywhere else on the Planet ?  I was there in 2011 & 2012, but couldn't make it this year.  I'm going to try hard to get there again next year.  I always root for Rare Bear, and am awed by how fast a couple of the Mustangs really are.  Strega is one that really impressed me along with Precious Metal & Voodoo.  Smiley

 53 
 on: Yesterday at 07:54:04 PM 
Started by Dennis Toth - Last post by Chris Wilson
Dennis,

I'm putting a model together with a constant cord wing and straight flaps also.


Charles, Dennis has a tapered wing - as in "(normal sweep to the leading edge). "

 54 
 on: Yesterday at 07:44:58 PM 
Started by Jim Fruit - Last post by Lester Nicholson
Can you brush it on w/acceptable results?  Nick

 55 
 on: Yesterday at 07:38:17 PM 
Started by Dennis Toth - Last post by Randy Cuberly
One more picture; result of pull test. The line broke in halfway between wrapped ends. I don't know the break strenght of 19-strand 0.015" cable, I'll guess it is less than 20kp.

Also, I think you exaggerate the effect that soldering has to temper of cable. Even the most sensitive tool steels are relieved to spring temper at about 300C, I doubt that any cable used in our toys is left that hard. Bigger risks are the remains of acid flux and possible stress risers.

L

Lauri,
I agree that a normal soldering operation shouldn't get hot enough to seriously anneal stainless cable.  Our cable is typically 300 series stainless and it doesn't really harden except work hardening during the wire draw and spooling process.
I agree that the biggest threst is from the flux that can be trapped inside the cable under the solder that cannot be neutralized or removed.  It then corrodes the wire and seriously weakens it.
I do not agree with soldering steel cables used in stressed conditions.

I think your method with kevlar thread is likely to be quite secure.  It does seem to require a lot of work as compared to simple dimpling of a copper tube however.

I assume you cover the thread with CA and opaque shrink tubing to reduce the effect of UV light.

Randy Cuberly

 56 
 on: Yesterday at 07:32:15 PM 
Started by Dennis Toth - Last post by Howard Rush
The thinner the width of the flap, probably the more movement necessary? I'm guessing with that.

I was guessing with that this past weekend, especially after reading the piece on Gurney flaps.  If the flow is separated, maybe you could have a really small chord flap and move it =/-  90 degrees.

 57 
 on: Yesterday at 07:32:15 PM 
Started by JohnCallentine - Last post by Keith Miller
I've had some smaller motors in which the bearings aren't real sturdy.  On the small EFlite 180 motors, the only thing holding the rotor can (outrunner can) is the magnetic field itself!
Possibly mounting the motor from the front would provide a shorter moment arm to the spinner/prop and would reduce the vibration.

 58 
 on: Yesterday at 07:30:34 PM 
Started by jfv - Last post by David Hoover
Drawing was done in AutoCad and all parts were laser cut.  Have my own laser.

Sweet!!!!!

 59 
 on: Yesterday at 07:28:53 PM 
Started by Ron Cribbs - Last post by Ron Cribbs
Seems to me, and I'm ne expert by any means, but 22% and lean run away runs. Are you sure you haven' cooked that fox?   Nkck

Lester,

Funny you should bring this up as it kind of proves the point.  The engine still has gobs of compression. I will say that Fox engines can handle a lean run better than say a McCoy, buy yes they will cook.

I have run a Fox lean for fun just to see how fast I could go and it still has great compression. I wish someone who has more experience and more pull in the CL community than me would be willing to sacrifice a Fox and run it on 10/22 and report back results.

 60 
 on: Yesterday at 07:18:38 PM 
Started by Ron Cribbs - Last post by Ron Cribbs
             In one of your posts earler you said you put the spray bar hole pointing straight down the venture. Past experience says rotate to just out of sight from horizontal say 3.30-5-00 oclock or 8.30-7.00 position. Just a thought.   Thanks  John

John,

Thanks for the info on orientation! You never find info like this when installing one.

Ron

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