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604D4-FI
(Fuel Injection)
 
The 604D4-FI is a opposed four-cylinder, two-stroke engine utilizing a
belt driven propeller reduction unit and digital fuel injection. The engine has
a 500 or 750 watt, 28 volt alternator option and larger alternators can be
adapted. A direct drive version is currently in development, and will still incorporate
the fuel injection system.
Key Features:
- Belt driven propeller reduction unit to reduce the propeller noise of
large diameter props.
- Digital fuel injection to increase fuel economy and altitude
compensation of fuel mixture.
- Anodized aluminum parts and stainless steel hardware to protect against
corrosion.
- Carbon fiber reed valves for increased performance and durability.
- Carbon fiber spinner with integrated spinner back plate and propeller hub.
Specifications:
| Displacement |
604cc/36.90 cubic inches |
| Bore |
66mm |
| Stroke |
44.20mm |
| Length |
15.50" |
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Width |
14.50" to sparkplug tips |
| Height |
11.00" |
| Weight |
41.00 lbs. w/o alternator |
| Propeller Reduction |
1.875:1 |
| LAI Recommended Propeller |
43 x 32 |
| Output |
50(+) hp |
| Fuel Consumption |
3.50 gal/hr at WOT |
*Lightning Aircraft's engines are for unmanned flight only. Please do
not contact us for any manned aircraft use.
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