A Must For Ultralight Safety and Comfort
Balance Masters® are PATENTED, DESIGNED, MANUFACTURED AND
DISTRIBUTED IN THE U.S.A. and are easy-to-install devices for
propellers and Rotax engines. These devices cut the vibration factor on
ultralight aircrafts by as much as 50 percent when both balancers are
Balance Masters® are weighted with a high density liquid
mass (Mercury). The physical principles of centrifugal and gyroscopic
forces explain the action of the Balance Masters®. With the Balance
Masters installed, the weighted liquid mass (Mercury) in the apparatus
shifts during spinning, and adjusts to compensate for imbalances due to
such factors as changes in flying conditions or warpage in the
propeller, from nicks and rocks during takeoffs and landings. The
Propeller Balance Masters® mounts on the propeller shaft or gear box in
conjunction with the propeller. It is less than 7 inches in diameter.
The Engine Balance Master is made to fit most Rotax
engines and bolts under the Starter Pulley on the Fly Wheel side of the
engine. It is less than 5 inches in diameter. Each device weighs about
4 oz. Installation will take about 25-30 minutes using ordinary hand
tools for each device.
Balance Master is designed to fit most propeller bolt
patterns and Rotax engines from 277FA through 582. We will need to know
the manufacturer of your propeller and engine model to determine the
Here is what Harry Whiting, Grand Champion Oshkosh 1991 of the Lightplane category has to say:
I installed your Balance Master to the propeller on
the 1991 Oshkosh Grand Champion Rans aircraft and could immediately
feel a smoother running engine and propeller. It is important to know
that this is our third Oshkosh Lindy trophy winning airplane and it is
truly state of the art.
Your Balance Master may just be one of the best values out there, and as a Rans dealer I will certainly recommend its use.
Yours for safe flying.