Mailing List flyrotary@lancaironline.net Message #67040
From: Marc Wiese cardmarc@charter.net <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Marcotte 2.4:1 vs RWS RD-1C 2.85:1
Date: Fri, 15 Oct 2021 09:48:27 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
I bought Bob’s Seawind! Partner didn’t want Bobs engine, have my own 20b. On that Marcotte, get it updated! Earlier units had failures. The builder is still in business. I just don’t like spur gear type drives. Planetarirs, if engineered and tested are far better. Especially the Mistral, I wish someone copied it!
M

Sent from my iPhone

On Oct 14, 2021, at 8:38 PM, Les C lesphoto@hotmail.com <flyrotary@lancaironline.net> wrote:


I have the good fortune to have both of these redrives in my garage as I have gathered parts for my BD-4 project.  I took advantage of timely offers and can only use one of them.  My motor is a 20b built by Bob Darrah.  I like the idea of keeping the RPM's down with the Marcotte drive to 6500, but the RWS drive would allow me to develop additional power at 7500.  I have an IVO prop that I will be using with inflight "controllable" pitch. 

So I throw it out there to you.  Which PRSU do I keep?

Les Criscillo
Nurse, Pilot, Brewmaster, Maker
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