Solar Impulse 2 four-motor electric propulsion system
Solar Impulse 2 used an integrated four-motor electric propulsion system with four brushless, sensorless motors, each generating 13.5 kW (17.4 hp). Reduction gears drove 4 m two-bladed propellers, and the complete system was reported at 94 percent efficiency.
Identity
- Aliases
- HB-SIB electric propulsion systemSolar Impulse 2 electric propulsionSolar Impulse 2 four brushless motors
- Domains
- aviation
- Identity Level
- integrated-system
- Kind
- integrated-propulsion-system
- Name
- Solar Impulse 2 four-motor electric propulsion system
- Status
- historical
Details
- Description
- Solar Impulse 2 used an integrated four-motor electric propulsion system with four brushless, sensorless motors, each generating 13.5 kW (17.4 hp). Reduction gears drove 4 m two-bladed propellers, and the complete system was reported at 94 percent efficiency.
Links
Assets & Meta
- Creation Time
- September 8, 2026 at 09:57:11 UTC
- Updated Time
- September 8, 2026 at 09:57:11 UTC
Other
- Search Name
- Solar Impulse 2 four-motor electric propulsion system HB-SIB electric propulsion system Solar Impulse 2 electric propulsion Solar Impulse 2 four brushless motors
- Sources
- Accessed Date
- 2026-09-08
- Note
- Solar Impulse identifies four brushless, sensorless motors, each generating 13.5 kW (17.4 hp), with reduction gears driving 4 m two-bladed propellers at up to 525 rpm and 94 percent system efficiency.
- Publisher
- Solar Impulse
- Title
- Challenge 2: Flying over 35 000 km
- Accessed Date
- 2026-09-08
- Note
- Solar Impulse identifies the four Solar Impulse 2 motors as an ETEL-developed high-efficiency electric-motor solution.
- Publisher
- Solar Impulse
- Title
- ETEL motor partner profile