We didn’t invent the CO2 motor, it’s been around for over 50 years. As with the Davis Diesel converters, Davis brings modeling a simple, reliable, quiet, and light-weight power plant in larger, more usable sizes.

For those of you who are unaware of what a CO2 motor can do, here are some facts:

  • Safe
  • Variable speed
  • Quiet
  • Low maintenance (drop of oil)
  • CO2 motors always start
  • Run either direction
  • Recharge in seconds

Davis supplies either a converter or complete motor. Models are available for Cox .010, .020, .049, and the latest, a twin cylinder .040 motor. It is hard to fully appreciate the enormous power these quiet little motors put out.

Example:

A Cox .020 converted from glow to CO2 will turn a 8x8 at 4000rpm or a 10x6 at over 2000rpm. Now that might seem like a very high rpm, but remember, this is an .020 that weighs only 1 1/4 ounces total! The thrust-to-weight ratio is phenomenal. For those wondering how long it runs on one charge to its on-board tank, how about 1 to 3 minutes, which is about as long as a glow engine. A manifold is available for multi-tank hook-up for extended flight time.

The Cox .049/.051 converted to CO2 produces even more astonishing power. It swings a 12x8 folding prop with authority at 3000 rpm. The .049 will fly anything a geared 05 electric can with ease, while greatly reducing the flying weight. Also available for extended R/C flight is the Jumbo 150 cc on-board tank which allows the .049 to run over 10 ounces with motor. A throttle valve is also used for simple reliable speed control.

If all of this sounds great we’ve saved the best for last: Fuel availability! CO2 can be purchased from the following places: welding supply stores, dry ice suppliers, or rent a 5, 10, or 20lb. cylinder. There are more than twice as many of these outlets than hobby shops. The typical cost to fill a cylinder is about $8.00.


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