More Revolution Questions

[Dean Pappas]

Does someone have a picture of the Rev Pro setup?
Back around '91,  had a 9 lb-6 oz Dr Jekyll with a 120-AC, with the engine the motor mounted on two 6" long rails. The front of each rail had a 5/8" lord mount to the nose ring, and the back of each rail was tied to the firewall with the same lord mounts. The rubber bits were aligned fore-and-aft. The mount had a horrible resonance at idle. I can still remember Dean Kraus yelling "shut it down - shut it down" the first time I ran the engine up. It shook that badly. The fix was to put a strap across the rear end of both rails, and put a large screw in the middle of the strap that stuck back through a rubber bushing in the firewall. This forced the back of the mount to rotate, not wobble up and down or sideways. All of a sudden, it was a really good mount. 
 
What is done in the Rev Pro mount to keep the back end of the motor from wiggling up and down or sideways?
 
Regards,
    Dean
 

Dean Pappas 
Sr. Design Engineer 
Kodeos Communications 
111 Corporate Blvd. 
South Plainfield, N.J. 07080 
(908) 222-7817 phone 
(908) 222-2392 fax 
d.pappas at kodeos.com 

-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]On Behalf Of Rcmaster199 at aol.com
Sent: Friday, October 15, 2004 12:28 PM
To: discussion at nsrca.org
Subject: Re: More Revolution Questions



The front rubber isolator. The design of the mount was first introduced by the Lord Corporation of PA I believe, hence the name


What is the front lord Mount??

----- Original Message ----- 
From: Rcmaster199 at aol.com 
To: discussion at nsrca.org 
Sent: Thursday, October 14, 2004 8:10 PM
Subject: Re: More Revolution Questions


Dan, If your Rev Pro came with fiberglass beams you can use it as is, except change the front lord mounts to the larger size. Mc master Carr carries the one size larger you will need. Also you will need to epoxy the mounting bolts into the beams. If yours has the aluminum beams as mine does, it is much easier. To be safe, I added an additional nose ring to mine vertically as my friend Gary did with his. Gary runs a 140 L and I run the webra 160. No problems. The Hyde mount is not necessary.
 
The stock phenolic horns are fine but use the MK ball bearing clevises. Gary mounted two servos in the tail for elevator control and I went with the Nat Penton method of twin carbon push rods. For those of you that don't know it, this was a Nat idea from about 25 years ago. 
 
For aileron servos, both Gary and I made cut outs in the panels, installed ply mounts and installed the servos as we do any other aileron servo in any other wing: output shaft and servo wheel just above the skin.
 
good luck
 
MattK

 

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