EXTRA 300L CAP 232 EDGEO 540T GILES G-300 SUKHOI SU-31M Electric Power CESSNA EP CITABRIA EP HAPPY 2000 120 Class Length1620 mm ( 63.7” ) Wingspan1842 mm ( 72.5” ) Wing Area60.8dm2(942sq.in. ) Weight5 – 5.4 kg ( 11–12 lbs) Engine1.08 – 1.5 (2–cycle)1.20–1.8 ( 4–cycle ) Radioany 4 channel radio with 6 servos 60 Class Length 1338 mm (52.7” ) Wingspan 1525 mm (60” ) Wing Area 43.5dm2(674sq. in) Weight 2.9-3.4kg (6.4-7.5 lbs) Engine 60-80 (2-cycle) 70-90 (4-cycle) Radio any 4 channel radio with 5 servos 30 Class Length 1100 mm (43.3”) Wingspan 1370 mm (53.9”) Wing Area 31.7 dm2 (491 sq. in.) Weight 2180 g (4.8 lbs.) Engine25-32 (2-cycle) 40-52 (4-cycle) Radio any 4 channel radio with 5 servos 540 Class Length: 1040 mm (40.9 in.) Wingspan: 2000 mm (78.7 in.) Wing Area: 44.5 dm2 (690 sq. in.) Weight: 1435 g (3.84 lbs.) Motor: 540 class Battery: 7.2 V 1200 - 1400 mAh Radio:any 2 channel radio with 2 servos & autocut unit OR any 3 channel radio with 2 servos and speed controller