Monday, December 18, 2017
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Evolution 20GX

The Evolution 20GX is a 20cc small block gasoline engine designed for .90- to 1.20-size airplanes. It’s been designed with a standard beam mount and dimensions that allow it to fit anywhere you might use a .91- to 1.20-size glow engine. It’s also remarkably lightweight, even with the ignition system and battery. With the included 2S LiPo ready electronic ignition and crankcase pressure type carburetor, easy starts and tuning are a breeze, allowing you to take the model to the air in no time.

 

Key Features

  • Lightweight construction based on the Evolution® 91NX glow engine
  • Outstanding power and performance for demanding RC pilots
  • Gasoline fuel delivers low operational cost and simplicity
  • Lightweight electronic ignition provides easy starts and superior reliability
  • 2S Li-Po battery compatible ignition without a regulator provides long run times
  • Standard .91 size beam mount allows for traditional mounting
  • In-cowl muffler included
  • Single prop nut attachment allows the use of any stock propeller and convenience while at the flying field
  • Supplied with fuel tubing and filters that handle gasoline and the high operating temperatures of a gasoline engine

Specs

Fuel Type: Gas
Cylinders: Single
Displacement: 1.20 cu. in. (20.00 cc)
Type: 2-stroke gas airplane engine
Bore: 1.20 in (30.5mm)
Stroke: 1.10 in (27.9mm)
Cylinder Type: Ringed/Steel liner
Plug Type: 1/4-32
Total Weight: 33.6 oz (958 g)
Engine (Only) Weight: 24.9 oz (708 g)
Muffler Weight: 5.2 oz (150 g)
Ignition Weight: 3.5 oz (100 g)
Crankshaft Threads: 5/16-24
Muffler Threads: M4
Benchmark Prop: 16 x 6 @ 8,850 rpm
Prop Range: 15 x 6 to 17 x 8
RPM Range: 1,800-10,000
Fuel: 87-91 octane gasoline (petrol)
Oil Type & Content : 20:1 synthetic
Muffler Type: Wraparound in-cowl muffler
Carb Type: Regulated with Muffler Pressure