Carbon Fiber Gull Wing Doors

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Bearhawk 4-Place Door Installation

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Details of Bob’s Door Catch for the Upper Front Windows

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Utility Door System Photos & C.G. Testing Information

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1999 Engineering Notice Regarding Upper Front Door Hinge Positioning (416 and below)

Engineering Notices

Source: 1999 Beartracks, Bob Barrows

Reference plans number 416 and below, Drawing #16. As shown in the drawing below change the 5 1/2" dimension to 5 3/4" to increase clearance between door frame and bottom of the wing in the open position. If the fuselage is already welded up, adjust hinge location for needed clearance.