NASA Pathfinder - Specifications

Specifications
Pathfinder Pathfinder-Plus Centurion Helios HP01 Helios HP03
Length ft(m) 12 (3.6) 12 (3.6) 12 (3.6) 12 (3.6) 16.5 (5.0)
Chord ft(m) 8 (2.4)
Wingspan ft(m) 98.4 (29.5) 121 (36.3) 206 (61.8) 247 (75.3)
Aspect ratio 12 to 1 15 to 1 26 to 1 30.9 to 1
Glide ratio 18 to 1 21 to 1 ? ? ?
Airspeed kts(km/h) 15–18 (27–33) 16.5–23.5 (30.6–43.5) ?
Max altitude ft(m) 71,530 (21,802) 80,201 (24,445) n/a 96,863 (29,523) 65,000 (19,812)
Empty Wt lb(kg) ? ? ? 1,322 (600) ?
Max. weight lb(kg) 560 (252) 700 (315) ±1,900 (±862) 2,048 (929) 2,320 (1,052)
Payload lb(kg) 100 (45) 150 (67,5) 100–600 (45–270) 726 (329) ?
Engines electric, 2 hp (1.5 kW) each
No. of engines 6 8 14 14 10
Solar pwr output (kW) 7.5 12.5 31 ? 18.5
Supplemental power batteries batteries batteries Li batteries Li batteries, fuel cell

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