| electric motor & weight | nicad pack | power output | static thrust | duration | equiv glow engine | sport model weight |
| Graupner Speed 400, 3 oz | 7 cells | 60 watts @8amps @11000 RPM w/ 5x5 prop | 0.5 lb, 40 mph | 6 min run; 8 min flight (using 600 mAH cells) | .02 -0.49 2-cycle | 1 lb |
| Turbo 550 (typical 05), 6 oz | 6 cells | 90 watts @20amps @8500 RPM w/ 8x4 prop | 0.8 lb, 35 mph | 6 min run; 8 min flight | .049-.051 2-cycle | 2 lbs |
| Astro Cobalt 05, 7 oz | 7 cells | 180 watts @30amps @13000 RPM w/ 8x4 prop | 1.9 lb, 50 mph | 4 min run; 8 min flight | .09-.15 2-cycle | 2 - 2.5 lbs |
| Astro Cobalt 05 (FAI wind), 5.5 oz | 7 cells | 320 watts @50 amps @17500 RPM w/ 7x4 prop | 2.4 lb, 65 mph | 2 min run; 6 min flight | .21 2-cycle | 2 - 3 lbs |
| Astro Cobalt 15, 8 oz | 12 cells | 260 watts @30amps @13500 RPM w/ 8x5 prop | 2.4 lb, 65 mph | 4 min run; 9 min flight | .15-.21 2-cycle | 3 - 4 lbs |
| Astro Cobalt 25, 11 oz | 16 cells | 430 watts @30amp @12500 RPM w/ 9x6 prop | 3.3 lb, 70 mph | 4 min run; 8 min flight | .25-.35 2-cycle | 4 - 5 lbs |
| Astro Cobalt 25 (FAI wind), 10.5 oz | 10 cells | 450 watts @60amp @12000 RPM w/ 9x7 prop | 3.3 lb, 80 mph | 2 min run; 6 min flight | .25-.35 2-cycle | 4 lbs |
| Astro Cobalt 40, 13 oz | 20 cells | 550 watts @30amp @12000 RPM w/ 10x7 prop | 4.4 lb, 80 mph | 4 min run; 8 min flight | .35-.46 2-cycle | 6 - 7 lbs |
| Astro Cobalt 40 (FAI wind), 11.5 oz | 14 cells | 580 watts @60 amp @12000 RPM w/ 10x7 prop | 4.4 lb, 80 mph | 2 min run; 6 min flight | .35-.46 2-cycle | 6 lbs |
| Astro Cobalt 60 (pattern), 22 oz | 32 cells | 1100 watts @35amp @10000 RPM w/ 13x8 prop | 6.9 lb, 75 mph | 3.5 min run; 7 min flight | .55-.65 2-cycle | 8 - 12 lbs |
| Astro Cobalt 60 (FAI wind), 19.5 oz | 28 cells | 1300 watts @60amp @14000 RPM w/ 11x8 prop | 7.6 lb, 105 mph | 2 min run; 6 min flight | .65 2-cycle | 8 - 12 lbs |
| Astro Cobalt 90, 30 oz | 36 cells | 1450 watts @35amp @8500 RPM w/ 15x8 prop | 9 lb, 65 mph | 3.5 min run; 7 min flight | .75-1.08 2-cycle | 11 - 18 lbs |
| electric motor & weight | nicad pack | power output | static thrust | duration | equiv glow engine | sport model weight |
| Astro Cobalt 035G, 7.5 oz | 6 cells | 150 watts @30amp @6,000 RPM w/ 10x6 prop | 1.3 lb, 35 mph | 4 min run; 8 min flight | .15 4-cycle (?!) | 2 lbs |
| Astro Cobalt 05G, 9 oz | 7 cells | 180 watts @30amp @5,600 RPM w/ 11x7 prop | 2.4 lb, 35 mph | 4 min run; 8 min flight | .20 4-cycle | 2 - 2.5 lbs |
| Astro Cobalt 05G (FAI wind), 9 oz | 7 cells | 320 watts @50amp @7,300 RPM w/ 12x8 prop | 2.9 lb, 55 mph | 2 min run; 6 min flight | .26 4-cycle | 2.5 lbs |
| Astro Cobalt 15G, 9.5 oz | 12 cells | 260 watts @30amp @6,900 RPM w/ 12x8 prop | 2.8 lb, 50 mph | 4 min run; 8 min flight | .26 4-cycle | 3-4 lb |
| Astro Cobalt 25G, 12.5 oz | 16 cells | 440 watts @30amp @8,400 RPM w/ 12x8 prop | 4.2 lb, 60 mph | 4 min run; 8 min flight | .40-.48 4-cycle | 5-6 lbs |
| Astro Cobalt 25G (FAI wind), 12 oz | 10 cells | 460 watts @60amp @8,400 RPM w/ 12x8 prop | 4.2 lb, 60 mph | 2 min run; 6 min flight | .40-.48 4-cycle | 5 lbs |
| Astro Cobalt 40G, 14.5 oz | 20 cells | 550 watts @30amp @8,000 RPM w/ 13x7 prop | 5.6 lb, 55 mph | 4 min run; 8 min flight | .60 4-cycle | 6-8 lbs |
| Astro Cobalt 40G (FAI wind), 13 oz | 14 cells | 580 watts @60amp @8,000 RPM w/ 13x7 prop | 5.6 lb, 55 mph | 2 min run; 6 min flight | .60 4-cycle | 6-8 lbs |
| Astro Cobalt 60G (pattern), 23.5 oz | 32 cells | 1100 watts at 7,000 RPM w/ 16x10 prop | 7.3 lb, 65 mph | 3.5 min run, 7 min flight | .90 4-cycle | 8 - 12 lbs |
| Astro Cobalt 60G (FAI wind), 21 oz | 27 cells | 1300 watts @60amp @8,600 RPM w/ 16x10 prop | 8-9 lb, 80 mph | 2 min run; 6 min flight | 1.08 4-cycle | 9 - 14 lbs |
| Astro Cobalt 90G, 32 oz | 36 cells | 1450 watts @35amp @5,000 RPM w/ 20x10 prop | 10 lb, 50 mph | 3.5 min run; 7 min flight | 1.2-1.5 4-cycle | 13 - 20 lbs |