Bison in Cowl Silencer

Overview
Made by Bison, these superb lightweight aluminium silencers are designed to fit the Evolution .46 and .61 glow engines, specifically intended for use with a side mounted engine these silencers fit inside the cowling of the model, and the twin outlet pipes exit the lower rear of the cowling, giving a “clean” look to the model, a pressure nipple is fitted so that the fuel tank may be pressurised for consistent engine runs.

BISO4046 Evolution in cowl muffler
BISO4061 Evolution in cowl muffler

Bison in Cowl Silencer

Bison 26GX In-Cowl Pitts Silencer (Side)

Overview
Made by Bison, these superb lightweight aluminium silencers are designed to fit the Evolution .46 and .61 glow engines, specifically intended for use with a side mounted engine these silencers fit inside the cowling of the model, and the twin outlet pipes exit the lower rear of the cowling, giving a “clean” look to the model, a pressure nipple is fitted so that the fuel tank may be pressurised for consistent engine runs.

BIS5516 In-cowl Pitts silencer EVO26GT side
Bison 26GX In-Cowl Pitts Silencer

Bison 35GT Silencer

Overview
Bison provides a neat solution to any silencing issues that may arise when using the Evolution 35GT petrol engine when it is mounted inverted, and in a cowl. This neat all aluminium silencer has an ample silencer chamber that will not restrict exhaust gasses, and the two outlet pipes have a greater outlet area than the carburettor venturi which is the ideal set-up, the unit is ready to use and comes complete with mounting bolts.

Features
  • Aluminium construction
  • Twin outlet pipes
  • ½ inch stand-off manifold
  • Mounting bolts
 Technical Specification
Width 1-1/4inch
Depth 3-1/4inch
Length 4-1/2inch

BISO5563 Silencer EVO035GT Inverted

 

 Bison 35GT Silencer

Bison Evolution 1.00 Pitts Silencer

Overview
For many year Bisson has brought silence to the world of radio controlled model aircraft, and this purpose designed silencer for the Evolution 1.00 engine is another fine example of the innovative silencers that have kept Bisson the market leader in after-market silencers and mufflers.

Beautifully constructed from lightweight aluminium with two outlet pipes this Pitts style silencer fits perfectly to the exhaust port of a side mounted Evolution 1.00 engine and allows for the outlet pipes to exit to the rear of the models engine cowling providing a very neat solution to any silencing issues that may arise, and minimising the need to cut large parts of the cowling away, spoiling the looks of the model. The silencer has a brass pressure tap already fitted so that the user may pressurise the fuel tank easily for consistent engine runs. A high quality silencer at an economical price!

BIS05610 Evolution 1.00 Pitts Muffler
Bison Evolution 1.00 Pitts Silencer

Bison Evolution 2.15 Racer Pitts Sundowner Silencer

Overview
For many years Bisson has brought silence to the world of radio controlled model aircraft and this purpose designed silencer for the Evolution 35GT petrol engine is another fine example of the innovative silencers that have kept Bisson the market leader in after-market silencers and mufflers.

Designed specifically for the Hangar9 Sundowner and keeping the silencer inside the cowling, this beautifully constructed lightweight aluminium silencer features two outlet pipes this Pitts style silencer fits perfectly to the exhaust port of the side mounted Evolution 35 engine and allows for the outlet pipes to exit to the rear of the models engine cowling providing a very neat solution to any silencing issues that may arise and minimising the need to cut large parts of the cowling away spoiling the looks of the model. The silencer has a brass pressure tap already fitted so that the user may pressurise the fuel tank easily for consistent engine runs. A high quality silencer at an economical price!

BSI05615 Evolution 2.15 Racer Pitts Sundowner Muffler
Bison Evolution 2.15 Racer Pitts Sundowner Silencer