Redrive Psru Plans For 2-stroke (rotax Type) Motor (ulm, Airboat, Hovercraft) on 2040-parts.com

You are bidding for a set of plans for snowmobile engine conversion system (redrive+motormount). A lot of ultralight, hovercraft, and airboat builders all over the world use these converted engines. A lot of redrives exist for them.

 

5-V redrive system is designed especially for snowmobile engine conversion, and well proven. This classical system consists of two 6061 T6 aluminum pulleys for 5 V-belts, eccentric shaft with heavy-duty closed ball bearings, motormount plate and all machined parts, rubber elements and hardware necessary for engine installation. It can be easy made at any even not high-tech machine shop. Tested and proven. Pulley drawings are included. You can easy get any desirable reduction ratio just changing the big pulley diameter. Standard shape Rotax-style hub allows using standard propellers. I used these redrives ith licensed Rotax 640 as powerplants for "Frigate" trikes. It has been installed now with Rotax 503 on my "Eagle" (look my another auction for “Eagle” plans) trike. Nice flyer. Air Trikes Enterprises is selling the set of plans for this system.

 

This system has a lot of advantages comparatively with other redrives:

 

a) Very reliable. Will be working with 4 or even 3 belts. You don't have to be so worried about your belt condition like with your single belt drive.

b) Very light and less expensive comparatively with gearboxes.

c) You can use not only provision-type Rotax but also non-provision. You don't need to convert the engine itself.

d) Spare belts are easy available and not expensive (Car Quest XL series for example)

e) Reduction ratio can be easy and smoothly changed by changing the pulley diameter.

f) The engine can be installed head-up or down.

g) This system can be easy adjusted by changing some installation dimensions to almost any project.

h) Quick (a couple of minutes) and easy adjusted belt tension.

i) It is a whole conversion unit included a motormount plate and 4 metal-rubber silentblocks. You need nothing but muffler and prop for your engine installation.

 

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