Real World Solutions, Inc

Home of RA Classic Apex Seals and RA Super Seals

RD-1A Redrive

Price: $2865 - plus $75 shipping & insurance US ONLY (plus sales tax in Florida). International customers - please email laura@rotaryaviation.com for shipping costs (includes Canada)

Deposits now will hold a production slot for: March, 2007

Deposits are refundable if order is cancelled with 90 days. Deposits after 90 days are considered on a case by case basis. See details under LEGAL STUFF

A $100 deposit will hold a production slot . Click on the PayPal button to pay for RD-1A DEPOSIT only. All Paypal deposits are confirmed via email. Deposits can also be made via check or money order drawn on US bank.

Click HERE for RWS Product Return Policy

	Gear Ratio: 2.176 : 1
	Weight: 43 lbs. including engine adaptor
	Total Length from face of engine to face of prop flange: 14.690"
	Rated at 200 hp continuous/300 hp take off
	Uses SAE2 Prop Hub (same as Lycoming O-320). Bolt size 3/8 inch - Drive logs 5/8 inch
	Uses 86-88 Mazda automatic transmission flywheel (not included with drive)
	Engine must be equipped with automatic transmission counter weight (a few 86- 88 counter weights are available. Call or email for pricing)

Background
Our redrive (I never liked the PSRU acronym) has been in development since January 1998. The first production version was installed on the airplane, and flight testing began, on July 26, 1999. Initial results were so positive that we made the 2,200 mile round trip to Oshkosh 99.

The reduction ratio is 2.176 to 1, and the drive reverses the direction of rotation. A left-hand prop is needed with a tractor installation. Horsepower handling capability is targeted at 200 hp continuous and up to 300 hp for takeoff. The length of the drive is 14.625 inches from engine to face of prop flange (approximately 1/8" longer than the Ross drive). The prop hub is a standard SAE-2.. The first version will be designed for the Mazda 13B (of course), but other versions will follow if there is a demand.

The RD-1A is the 2nd version of the gear drive, which utilizes a single piece prop shaft and prop flange (see photo links below) . Although some of the photo links, below, will display pictures of the RD-1, only the RD-1A and RD-1B (with the one piece shaft) are currently in production. Click on the links below for photos and more information on RWS gear drive design process.

Gear Drive Design Philosophy

Photo: RD-1A Prop Shaft

Photo: RD-1 Disassembled

Photo: RD-1 Assembly

We will be glad to furnish any information you may need to plan your installation. Just send your questions, via email, to tcrook@rotaryaviation.com.

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