P-51 Mustang (oz15589)
About this Plan
P-51 Mustang. Radio control PSS glider model. Wingspan 50 in.
Quote: "This model was inspired by the increasing popularity of scale jet and piston engined slope soarers featured in European model magazines, and by the author's recent discovery of a Torrey Pines-type soaring site right here in southern Ontario!
After much looking and thought about which design I wanted to do, the Mustang was chosen for a number of reasons. Not the least of which was the fact that the P-51 is probably the best known fighter plane of World War II. It also lends itself very well to modeling, and to slope soaring in particular.
Unlike many of the modern jet fighters, the Mustang's wingspan is actually longer than the fuselage, so the modeler doesn't have to cheat on the scale proportions by extending the length of the wings. Also, the moment arms of the P-51 are pretty good, with a long nose to hold most of the radio gear (no engine or fuel tank, remember?), while the tail moment is better than that of many jet planes. These often have more fuselage ahead of the wing than behind it!
Finally, the Mustang's color schemes, especially if the builder opts for the dazzling paint job of a post-war racing version, are more varied than those of other WW II fighters. The latter usually employed a conventional camouflage pattern. And while this difference hardly matters for a power model which is usually seen from below, a slope soarer will often disappear below the horizon when flown from a hilltop. Unfortunately, a brown and green color scheme can blend all too nicely with the fields and tree tops of the valley below making visibility of the model somewhat difficult!
The model features a 50 in wingspan, and should present no difficulties to anyone who has built at least one sailplane or powered aircraft previously.
Construction: Wing: Begin by cutting all the wing ribs as shown on the plan.
(1) Cut the 1/4 square spruce leading edge to length and epoxy at the correct sweep angle between ribs W1 and W3. Cut the 1-1/2 x 3/8 tapered trailing edge stock to length, and notch for the wing ribs. Place both leading edge and trailing edge over the plan.
(2) Cut the 1/4 x 1/8 spruce lower wing spar to the correct length and lay over the plan as shown. Glue ribs W2 and W9 in place, making sure to slide a piece of 1/4 scrap balsa under the wing tip trailing edge to provide the necessary washout. Add ribs W3 to W8.
(3) Next, glue the top wing spar in place and add the 1/16 balsa shear webs between each rib with the grain running vertically. Notice that the webbing between ribs W7, W8, and W9 is cemented to the front of the spars only.
(4) Cut two dihedral braces W10 from 1/16 ply and epoxy in place. Glue the rear portion of rib W1 between the brace and the trailing edge and add rib W1A as shown. Use the template included in the plan to set W1 at the correct dihedral angle.
(5) Sheet the top leading edge with 1/16 balsa.
(6) Next, cut the PA aileron from the trailing edge stock, and slot the remaining 1/4 trailing edge strip for the aileron and control horn hinges as indicated. Repeat steps 1 to 3 for the other wing panel. Join the two halves and repeat steps 5 and 6.
(7) Now sheet the top center section between W1 and W2 aft of the main spar with 1/16 balsa; install the strip aileron linkage, and cut out a hole in the forward center section for the aileron servo.
(8) Turn the wing over and add the forward portion of W1 and, using pieces of scrap 1/16 balsa, make a box to house the aileron servo.
(9) Add the bottom center section sheeting as shown.
(10) Slot the aileron hinges. Cut off the fixed center section portions of the ailerons and glue these to the wing over the control horn assembly. Make sure no glue sticks to the aileron horns. Epoxy the hinges into the wing, then install the ailerons.
(11) Cement the 1/16 balsa capstrips to ribs W3 to W8, top and bottom. Add the carved balsa wing tips, and fiberglass the wing center section top and bottom with 3 wide tape. Epoxy the 3/16 locating dowel to the front of the wing, drill a hole for the wing retaining bolt at the rear..."
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(oz15589)
P-51 Mustang
by Mike Hollison
from RCMplans (ref:997)
July 1987
50in span
Scale Glider R/C LowWing Military Fighter
clean :)
all formers complete :)
got article :) -
Submitted: 31/07/2024
Filesize: 922KB
Format: • PDFbitmap
Credit*: TomBinkley
Downloads: 445
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- P-51 Mustang (oz15589)
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