Tachometer Readings Post your tachometer readings for your motor in here or ask others what they are getting out of their motor/prop combos!

OS 46SF & Royal 45

Reply
Old 04-28-2008, 12:54 AM
  #1
Bone
Thread Starter
 
Bone's Avatar
 
Join Date: Mar 2002
Location: GraftonNSW, AUSTRALIA
Posts: 433
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default OS 46SF & Royal 45

Yes, I know these engines are NOT from the current crop but many modellers would have a few of these laying around. The Royal 45 I have is the earlier version that has the removable front housing (looks like an OS FSR clone - nice [)]).

Home brew fuel being 70% methanol, 10% nitro, 10% red Klotz & 10% castor (Castrol M). Air temp about 75F & dry.

Same glow plug (OS 8), same prop (Bolly 10.5 x 6) for all tests. Engines fitted with standard OEM mufflers

OS 46SF = 13,200 RPM

Royal 45 (removable front housing) = 12,900 RPM


Bone [8D]
Bone is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

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



All times are GMT -8. The time now is 07:58 AM.