The wings are framed directly over the plans (above left), beginning with the inboard end of the panel. The tip is supported on a block during construction.


Wings: The wings incorporate an “egg-


crate” style of construction using a full length main spar and split rear spar. Due to the tapered outer section, the spars angle upward toward the tip on the bottom, be- ginning at mid span, so the panels are built in two segments. Begin by pinning the in- board end of SM1 and SM2 in place over the plan, followed by A1 and A2. Align and glue


The ribs (above right) are fitted onto the main and flap hinge spars, then pinned in place over the plan to insure proper alignment.


R2A to R2, then fit ribs R1, R2, and R3 in place on the spars, followed by SM2. Unpin the wing from the board and rock


the panel onto the spars at the outboard end. Pin A3 in place and add ribs R4–R9 and glue in place, followed by SM4 and SM5. Glue the 1⁄4 × 3⁄8-inch leading edge and 3⁄32-


inch square balsa span-wise top spars in place. Remove the wing panel from the


board and glue LSM in place. Sand the wing to shape, and then add the 5⁄32-inch brass joiner tubes followed by the 1⁄16-inch O.D. aluminum strut retention tubes that are lashed to SM with thread and secured with a drop of thin CyA. Build the flaps and ailerons over the plans


using the part numbers and wood sizes shown. The aileron spar will need to be


CD441B © Carstens Publications FLYING MODELS


Order Plan CD441 for $38.00 21


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68