RCU Forums - View Single Post - What are the ingredients for a screaming Norvel AMD .061 rc ?
Thread: What are the ingredients for a screaming Norvel AMD .061 rc ?
View Single Post
Old 07-29-2014, 08:12 AM
  #3  
Mr Cox
 
Mr Cox's Avatar
 
Join Date: Jul 2007
Location: Karlstad, SWEDEN
Posts: 3,791
Likes: 0
Received 2 Likes on 2 Posts
Default
I use only 10% nitro and have 20% all castor in the fuel. To me these engines needs to rev around +20000rpm on the ground to be happy. Here are some numbers for the .061RC, pre-revlite version with the stock muffler:

Graupner 6x3; 18200rpm
APC 6x3; 19000rpm
Cox 5x4 (narrow blade) 20500rpm
APC 4.7x4; 22000rpm
APC 5x3; 23500rpm

I have a 10oz "Yellow Jacket" that's a blast to fly on the 5x4 cox prop. The actual speed is not that high I think, it is just that these small planes very quickly become tiny in the air...


"Yellow Jacket", here with a Cox .05RC
Attached Thumbnails Click image for larger version Name: IMG_1372_large.jpg Views: 298 Size: 1.07 MB ID: 2018314  
Last edited by Mr Cox; 07-29-2014 at 08:16 AM.
Mr Cox is offline  
Reply Like