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Abe's RC Airplanes |
RC Airplanes - Frequently Asked Questions and InformationRC Airplanes - Frequently Asked Questions 6, 7 & 8 You need a charger of some sort. If you are using six or seven cells, any RC car charger will do the job. You don't need peak detecting or any of that fancy stuff to start with. For larger packs, there are good high-voltage chargers around. Check out Astro Flight and TRC, among others. Remember, the biggest enemy of NiCads is heat, so try and keep those batteries cool when charging. Expect to pay about $40.
Rare-earth magnets, of which the most common type is samarium cobalt, are stronger for a given weight and volume than ferrite magnets. Perhaps an even more important reason for getting a cobalt motor is that they also have better brushes, bigger shafts, better bearings, are built more carefully, and so on. For the serious electric flier, they are worth the extra expense.
RC airplane motors are traditionally specified by a system which attempts to equate them to wet engines. There are significant problems with this, but they probably aren't of concern to beginners. An "05" motor takes a six or seven cell battery and puts out 75 to 120 watts, and so on up to a "60" which takes 28 cells and puts out 1200 watts. Incidentally, there are about 750 watts in a horsepower. The actual power output for a given voltage (number of cells) depends on the load. Unlike wet engines, electric motors put out more power with more load. If you don't like the performance you get from your plane, you can try a bigger propeller up to a point. More power, of course, means less run time for your rc airplane. In the ideal world, motors would be specified by the total power they are capable of supporting and by the number of cells (or voltage) with which that power is produced.
RC Airplanes Introduction - RC Airplanes Questions - Site Map
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6.
What support equipment do I need to start with
rc airplanes? 
