skylarkmk1

rgm762,

Think of it like a 3 view plan only with the plane assembled. Set the fuselage up so that it is level front to rear (horizontally) and top to bottom (vertically).

From the top, the leading edges will be parallel with each other with the bottom wing behind the top (stagger), equal amounts of wing on both sides and square to the fuselage. To check square, place a pin centered at the rear of the fuselage (like the rudder post). Loop a piece of string to the pin and use the string to see if the same point on each wing tip are equal, if not adjust accordingly. Check the stabilizer the same way as the wings for square only the pin will be centered at the front of the fuse. It is also a good time to check the right thrust of the engine (if any).


From the side, with the fuselage datum line parallel to the ground, both leading edges are in the proper location relative to the fuselage (stagger). It is also a good time to check the incidence of the wings and stabilizer and the down thrust line of the engine (if any).

From the front, with the fuselage aligned so the vertical centerline is vertical, both wings are horizontally aligned; both wing tips are the same distance from the ground on each wing and both wings are the same distance apart from tip to tip. It is pretty easy to see if the wings are not straight as they will be tilted or the tips will be closer on one side or the other. The rudder should be vertical and the stabilizer with be at right angles to the rudder and parallel to the ground.