RCU Forums - View Single Post - Proctor Eindecker,engine choice
View Single Post
Old 11-30-2003 | 10:36 AM
  #3  
The PIPE
Senior Member
 
Joined: Oct 2002
Posts: 708
Likes: 0
Received 0 Likes on 0 Posts
From: Weymouth, MA
Default The RCV SP series "mills" come to mind...

Dear EindeckerIII:

The PIPE Here again...and I JUST started on the CAD drawings for my 1/4th sized M.5K/MG Eindecker on Saturday!

I've been LONG considering the RCV SP-series powerplants for my "pre-production" style EARLIEST of all Eindecker variants, and where the M.5K/MG only spans 88 inches, and is 5-1/2 feet long in the fuselage department, the RCV 90SP, with its capability to turn a BIG 18-20 inch diameter, 10-12 inch pitch prop at an amazingly SLOW 4500-5000 RPM, due to its unique "camshaft-speed" design, looks like the BEST one for my needs!

I had also considered the RCV 120SP for my early Fokker, but Otto Kdurna, who REGULARLY posts in the "RCV Support Forum" here at RCU, stated the 90SP WOULD be a good choice for my very early Eindecker as well.

If you ARE going to do the full-blown Fokker E III, straight from the Proctor kit, though, I'd bet you'd be best off using the 120SP...as it CAN spin a full blown TWO FOOT diameter prop, of about 12 inch pitch, at those RPM figures quoted here for the 90SP...and a 24 inch prop is fairly CLOSE to scale size for that aircraft, when done up in 1/4th size. The E III also spans 100 inches in quarter scale, and the 120SP should be a GREAT match for that airframe's wing span!

Just check at http://www.rcvengines.com/model_home_page_full.htm , and click on the SP series engines to check them out...there's even downloadable FULL SIZE DRAWINGS of ALL the SP series engines there, in Adobe Acrobat PDF format, for you to access and print out!

Consider the RCV SP series "camshaft speed" engines for that model...and I'd bet IT would be the perfect match for your Proctor E III version!

Yours Sincerely,

The PIPE!