Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Which engine would be faster?

Reply

Old 05-30-2008, 09:25 AM
  #1  
green river rc
Senior Member
Thread Starter
My Feedback: (2)
 
green river rc's Avatar
 
Join Date: Jun 2002
Location: Raywick, KY
Posts: 1,036
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Which engine would be faster?

I'm finishing up another delta and have 2 engines to choose from, a GMS .32 and a OS .46FX. I have always used the .32 on my deltas but would the .46FX be faster? My experience tells me the bigger engine is not always the fastest because of RPM. I thought I should run it by some of you speed freeks and see what you guys think.

Thanks,
David
green river rc is offline  
Reply With Quote
Old 05-30-2008, 09:31 AM
  #2  
evan-RCU
Senior Member
 
evan-RCU's Avatar
 
Join Date: Feb 2002
Location: Charlotte, NC
Posts: 3,911
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Which engine would be faster?

.32SX but they are discontinued now.... I'm not sure of the GMS .32 but I've had good luck with other size GMS motors.
evan-RCU is offline  
Reply With Quote
Old 05-30-2008, 09:32 AM
  #3  
wjvail
My Feedback: (3)
 
wjvail's Avatar
 
Join Date: Sep 2002
Location: Meridian, MS
Posts: 652
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Which engine would be faster?

Which make the plane balance better?

Bill
wjvail is offline  
Reply With Quote
Old 05-30-2008, 09:53 AM
  #4  
bob27s
My Feedback: (19)
 
bob27s's Avatar
 
Join Date: Apr 2002
Location: Cleveland, OH
Posts: 5,576
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Which engine would be faster?

Not enough information to actually answer the question.

How large is the aircraft ? Wing area? Expected weight?

Since you have used the GMS in the past, what props were tried and what were the resulting RPM numbers?

I know that the 46FX properly set up and with the correct prop is quite capable for sport speed applications - that part of the puzzle I can provide.

Bob
bob27s is offline  
Reply With Quote
Old 05-30-2008, 10:03 AM
  #5  
evan-RCU
Senior Member
 
evan-RCU's Avatar
 
Join Date: Feb 2002
Location: Charlotte, NC
Posts: 3,911
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Which engine would be faster?

He has another thread with the plane on it, very nice delta...
evan-RCU is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service