Protech ZOOM 425 ccpm Spécifications Page 23

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3.4.7. Ikarus Viper 70/MS Composit Stinger 3
Moderate to serious aerobatics capable
Moderately inexpensive (retail ahout $250)
About average durability
Manufacturer in Germany
700-900 grams AUW, 750mm rotor diameter, 3-5s lipo
Small, high headspeed, difficult to learn hovering
Backyard flyer
3.4.8. Ikarus Viper 90/MS Composit Stinger 6
Moderate to serious aerobatics capable
Moderate (retail ahout $300)
About average durability
Manufacturer in Germany
1000-1200 grams AUW, 900mm rotor diameter, 3-5s lipo
Medium, high headspeed, hard to learn hovering
Backyard flyer
3.4.9. Feda Skylark/Century Hummingbird/GWS Dragonfly
Trainer, but harder to learn (probably 50% harder than Corona)
Inexpensive - $80 for bare heli kit
Fairly durable, but rotor blades are stiffer? than Piccolo and are more easily destroyed.
Manufacturer in Taiwan?. Parts availability is good.
280 grams AUW, 8 AAA cells
Small, low headspeed, hard to learn hovering, but can be flown indoors
Living room, Gym flyer
3.4.10. JR Voyager E
Trainer/light aerobatics capable
Expensive (retail about $400 incl. motor, cannot buy without motor)
About average durability
Manufacturer in Japan. Parts availability very good.
First Helicopter Selection Guide
10
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