The DA 70 EFI Engine is a 70 cc UAV engine with an electronic fuel injection system for consistent performance across varied operating conditions. A magnet assembly in the prop hub enables quick manual starting, and the engine control module runs from a single 3-cell LiPo battery of 1500 mAh or greater capacity. At full throttle, the system draws only 12 W (1 A), supporting long operational durations. Tested from sea level to 10,000 ft and from 10 °F to 120 °F, the engine is suitable for a range of UAV applications.
Optional electrical systems include a 200 W power management unit with three configurable output lines, and a 500 W starter-alternator with integrated starter controller for remote engine start. Both systems are compatible with LiIon, LiPo, LiFePO4, SLA, NiCad, NiMH, and lead acid batteries. Custom alternator configurations are available on request.
Specifications:
| Displacement: | 70 cc, 4.28 ci |
| Power: | 5.7 kW, 5 hp |
| Weight (Engine with Intake): | 1.6 kg, 3.5 lb |
| Weight (ECM): | 98 g, 3.45 oz |
| Weight (Fuel Pump): | 150 g, 5.29 oz |
| Standard Operating Speed: | 1,900 RPM to 8,200 RPM |
| Voltage: | 10 V to 15 V |
| Power Draw: | 1 Amp peak, 1 hour/1,000 mAh |
| Weight (500W Alternator System): | 2.41 kg, 5.30 lb |
| Weight (Muffler): | 238 g, 8.4 oz |
