What configurations of engines, landing gear, etc qualify as Advanced?
The qualification of engines, wheels, floats, skis, etc is contingent upon using specific installation hardware and instructions. One-off configurations or installations are never approved because it is not economically viable to do the extensive engineering analysis required to validate their airworthiness. Note that in this context the term “approved” means simply “meets the criteria of the Advanced category” – it does not imply a recommendation of any sort. The Rotax 447, 503 and 582 are approved when installed with the motor mount, exhaust mount, cooling system, reduction drive, prop and optional oil injection sourced directly from National Ultralight. The land configuration is approved with a variety of wheel sizes. If oversize main wheels and tires are used then the nose wheel must be proportional to maintain the correct angle on the ground. Gear legs can be the standard aluminum as provided by Quad City or fibreglass from Skyes The Limit in Arizona or steel from Freedom Flite (“
The qualification of engines, wheels, floats, skis, etc is contingent upon using specific installation hardware and instructions. One-off configurations or installations are never approved because it is not economically viable to do the extensive engineering analysis required to validate long term airworthiness. Note that in this context the term “approved” means simply “meets the criteria of the Advanced category” – it does not imply a recommendation of any sort. The Rotax 447, 503 and 582 are approved when installed in accordance with instructions with the motor mount, exhaust mount, cooling system, reduction drive, prop and optional oil injection sourced directly from National Ultralight. The 582 Cabin Heater system from Sheer Technologies is approved if installed with the supplied hardware in accordance with instructions. The land configuration is approved with a variety of wheel sizes. If oversize main wheels and tires are used then the nose wheel must be proportional to maintain
