RCU Forums - View Single Post - My Diamond Dust compared to my Shrike
View Single Post
Old 08-24-2005, 08:12 PM
  #3  
Rudeboy
 
Rudeboy's Avatar
 
Join Date: Dec 2002
Location: Kortessem, BELGIUM
Posts: 3,607
Likes: 0
Received 13 Likes on 11 Posts
Default RE: My Diamond Dust compared to my Shrike


ORIGINAL: bob27s

ORIGINAL: ckoerner
What RPM's should I be getting on the ground with the JET FIRE 50?

Later,
Craig


A few of the engines were set up for super-high rpm turning the 7.4x8 qm40 props. But on the Whiplash and DD the D-1 serise Q-500 props seem to work best.

Let me know where you are with it now (prop, rpm, fuel)

Bob
I am putting together another Dust as we speak, and it will be powered by my high rpm BSE FIRE 50. Dub told me to use a QM40 prop for best performance, but I guess it will work fine with slightly larger props if the pipe length is set correctly. (I bought the engine for my Stinger 40 initially... the one that is still on "the pile" )
I will start out with unmodified Q500 props, but I think something extra can be squeezed out of the combination with some slight prop trimming... we'll see.
IMO the Dust does not need a "huge" prop like a sport 9x8, but since I haven't tried it, it is just that: an opinion. Again, we'll see...

I was/am aiming for the maiden this weekend, probably sunday... don't know if I'll get there. If not this weekend, then the next.
I will get back to you guys with my findings.