RE: Evolution engine, Need commend
Here is a breakdown on the 2 EVO engines we all have been discussing. First let's take a look at the Evolution Trainer Power System, which comes installed on alot of todays RTF trainers, such as the Extra Easy 2.
The Evolution system is an innovative combination of propeller and engine technology specifically designed to make it the easiest starting, smoothest running power choice for .40 to .50-size trainers.
1. Canted glow plug tilts glow driver away from propeller during starts for safer operation.
2. Needle valve limiters guarantee easy starting and reliable performance.
3. Remotely mounted needle valve for safe, easy adjustment.
4. Flywheel system for easy starting and smooth idle.
5. Whisper-quiet three-bladed training prop for spirited performance and easily managed airspeed.
Evolution Trainer Power System Specifications
Bore: .867 in
Stroke: .770 in
Displacement: .455 cu in
Weight w/ muffler: 19.52 oz
RPM: 2,000-16,000 rpm
Evolution .46
Evolution’s .46-size glow engine is a top-of-the-line 2-stroke, guaranteed to start quickly and easily. Not only that, but we also pitted it against some of the top sport engines in its class. And guess what? It matched or beat them all in power and performance, proving it’s the strongest engine you can put in your .40-size plane. It offers preset SetRight™ needle valves that take all the guesswork out of operation, as well as a canted glow plug that tilts the glow driver away from the plane’s propeller for safer operation and a ball bearing-supported crankshaft that provides greater power and longer engine life. And for ultimate power, the bore, stroke and timing are carefully engineered for both muffler and tuned pipe use.
Canted glow plug tilts glow driver away from propeller during starts for safer operation
SetRight needle valves guarantee easy starting and great performance
Rear needle valve provides safe, easy adjustments
Dual ball bearing supported crankshaft extends engine life and improves reliability
Specifications
Displacement: 0.467 cu in (7.65 cc)
Bore: 864 in
Stroke: .797 in
Weight: 13.10 oz
RPM: 12,500
Prop: 11x6
Crankshaft: 1/4 x 28
As you can see, there is not a huge difference in the Bore, Stroke, or displacement, but the EVO trainer system has a large differnce in RPM, allowing it to maintain steady fly at low idle speeds without motor cutting off, making it great for trainers and first time or new pilots.
Specs for both engines are straight from Hangar 9, so that you can compare to see the differences as well as the simularities.