Helios Prototype
Specifications

Helios Prototype

Section Title: Specifications
Table Section Text: None

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

Sentence(s)

Helios Prototype had an altitude of 96,863 feet.

final_sentence: Helios Prototype had an altitude of 96,863 feet.