Engine under the Lease. The term "Engines" means, as of any date of determination, both Engines then leased to the Lessee pursuant to the Lease.
Diesel engine means an engine which works on the compression-ignition principle.
Compression Ignition Engine means an internal combustion engine with operating characteristics significantly similar to the theoretical diesel combustion cycle. The regulation of power by controlling fuel supply in lieu of a throttle is indicative of a compression ignition engine.
Engines means, as of any date of determination, all Engines then leased hereunder.
Propeller means for a device for propelling an aircraft that has blades on a powerplant driven shaft and that, when rotated, produces by its action on the air, a thrust approximately perpendicular to its plane of rotation and it includes control components normally supplied by its manufacturer, but does not include main and auxiliary rotors or rotating airfoils of powerplants;