The Challenger II 582 Premium Power Pack is centered on the Rotax 582 UL DCDI Mod 99 engine and includes everything you need to produce thrust.

This engine, the well-proven second generation "Blue Head" version, has numerous internal improvements to enhance reliability, the benefit of Rotax's substantial real world service experience with the initial generation. The engine comes complete with dual electronic ignition, two spark plugs per cylinder, dual carbs, impulse fuel pump, air filter and a quite effective muffler. Custom exhaust mounts are used. To attach this engine to the airframe we include the new motor mount with eight Lord mounts to isolate the airframe from vibration.

The 582 is liquid-cooled via an engine-driven water pump and thermostat so of course we include a complete radiator setup with everything you need to go flying - no trips to the hardware store, or the engineering department! This rad mounts in front of the engine on top of the wing parallel to the airflow rather than perpendicular so it creates the least possible drag. It is quite large to avoid overheating on even the most trying days in the most trying circumstances.

An integrated generator produces AC current (12V 170W) which is converted by the supplied regulator/rectifier to 12V DC (nominal). Electric start is standard with our Premium package. Also included is a backup manual recoil starter.

The reduction drive is the preferred "tall" 2.6-to-1 unit which turns a 60" prop.

The prop is the top-of-the-line Warp Drive 3-blade ground adjustable unit with upgraded HP-L machined aluminum hub and three carbon fibre blades with wide tips and nickel leading edges for protection from spray, slush and rain. The HP-L hub makes tracking easier and it's lighter and prettier than the Std. Users say this prop is near indestructible - please don't try to disprove them!

A wonderful aspect of the 582 is that the peaks of the horsepower and torque curves overlap and are quite flat plus start at a relatively low rpm. This allows the prop pitch to be set into the peak power range without giving up on cruise! The 3-blade configuration is required to get all the 582's horsepower out into the air as thrust - a 2-blade prop wouldn't have enough disc area to do this.

The optional 582 All Season Kit provides cabin heat via a remote heater core with 3-speed electric blower and ducting plus cockpit-controllable louvres for modulating the airflow through the rad. The louvres function like the cowl flaps on high performance airplanes or like the shutters on some motor vehicles.

When the louvres are open they allow maximum airflow to avoid overheating during taxiing or prolonged climbs on hot days. Conversely, when closed they prevent overcooling during extended descents at low power settings. The louvres can be set to any interim position to keep the coolant temperature right in the middle of the operating range, the key to the high reliability of the 582.

This option is strongly recommended if you are going to be flying in the Canadian cold season (September through June!) or at high altitudes.

The optional 582 Oil Injection Kit includes the oil injection pump and control as well as two oil tanks which mount on either side of the rad. In this setup the owner puts pure gas in the fuel tank instead of pre-mixing with oil. The metering system, based upon engine rpm and throttle position, delivers exactly the right amount of oil to each cylinder via diffuser jets in the intake manifold sockets. The tanks are quite large and contain enough oil for 10-12 hours of flight! The oil tanks have individual sight gauges and both gauges are visible from either side of the airplane. The oil tanks are designed with outlets front and rear and they are cross-linked so that oil is available in all flight attitudes.