AMC
22.477 Landing gear arrangement
ED Decision 2003/13/RM
For the purpose of these requirements landing gears are considered conventional if they consist of:
(1) A single wheel or twin coaxial wheels at the bottom of the fuselage or two laterally separated single wheels (with or without shock absorbers) located directly, or nearly so, below the c.g. of the sailplane, together with a nose wheel or with auxiliary skids attached to the bottom of the fuselage, one auxiliary skid running from the main wheel (or wheels) forward to the nose and the other running aft to a point approximately below the wing trailing edge. The rear skid may be replaced or supplemented by a suitable tail skid. Both skids may be replaced by suitable reinforcements of the fuselage structure.
(2) A single elastic main skid at the bottom of the fuselage extending from the nose to a point approximately below the wing trailing edge. This skid may be supplemented by a tail skid or wheel.
(3) Wing-tip skids