Alternate Airpower - Propeller Speed Reduction Units (PSRU)

For over 35 years, Geschwender has been a respected name in auto engine conversion. For builders of experimental, agricultural and utility aircraft engines, the Geschwender design offers time tested performance and reliability. The simple design utilizes a Hy-Vo chain for smooth, efficient, vibration free power transmission. The modular construction installs easily.

 

Specifications Geschwender PSRU: Weight, lbs...................................78 Reduction Ratio.............................2:1 Max. Prop Dia..............................106" TBO.............................................2000 hr. Prop Flange...............................Various Lubrication.................................Engine Oil PSRU Type................................Hy-Vo Chain Block Face to Prop Flange Face........14.5" Crankshaft to Prop Shaft CD.............7" Mounting  -  Width without ears........16" Mounting Ears Height above Crank..3.5" Mounting Ears Distance from Block..5"                        UNIT PRICE To Be Announced               John Worden's project. Click to see more.

Fred Geschwender and one of his conversions.  This is a 460 cu in Ford SVO with an earlier model redrive.

Fred Geschwender originally designed his reduction unit in the early 1970's, as part of an automotive engine conversion that was intended to take the place of a Pratt & Whitney 1340 on agricultural and utility aircraft such as Beavers and Otters. The latest Geschwender design, at only 78 lbs., will provide an exceptional margin of safety and performance when installed on V6 or V8 GM engines. There is an informative article in the March 1997 issue of Sport Aviation magazine on Fred Geschwender, automotive engines for aircraft, and the Geschwender reduction unit.

Features:
 

Fits GM V6 and V8 engine blocks. Efficient power transmission with Hy-Vo chain. Simple two piece magnesium alloy case. Compact envelope dimensions for easier fit in small nacelles. Optional prop flanges. Supports constant speed or fixed pitch props. Heavy duty pressure lubricated prop shaft bearings. No requirement for additional vibration damping. Simple installation - installs and removes as one piece. Integral oil plumbing. No requirements to reverse engine rotation. Conservative design standards. CNC machined.	View inventory
Narrow model available.

 

Geschwender Installations:

3/4 scale Mustang
2/3 scale Mustang
2/3 scale Mustang (new)
V6 Defiant (new)
Legend1, Legend 2
Crop Dusters
XP Talon
Miscellaneous1, 2, 3, 4
  Express Aircraft

 

To find out more contact:

Anderx Innovations Corp.
Oceanside, CA 92056
(858) 431 - 6428
lganderz@gmail.com