Cessna 152 20 (oz3615)

About this Plan

QB Cessna 20. Radio control scale model. Wingspan 55 in, wing area 434 sq in for .19 - .25 engine and 3 or 4 channels.

Direct submission to Outerzone.

Planfile include full build instructions.

Quote: "Cessna-152 Construction: Construction of the fuselage, wing and tail surfaces is easily accomplished. The fuselage framework can be accurately by inserting the longitudinal fuselage members and bulkheads into the notches in the plywood pieces. Use your favorite epoxy glue to adhere the members individually as you assemble the component parts. The wing and Stab. are similarly constructed using the plan as full size plan. Install the radio system as indicated on the full size fuselage drawings and the instructions provided with your radio. Spruce pushrods are included in the kit as is the piano wire for servo and control surface attachment. Clivis are not provided in the kit and must be purchased separately.

Fuselage Construction: Glue firewall F-2, fuselage formers F-3 through F-9 into the notches in the sidepanels F-1. Sandwitch and glue the tail piece F-10 between the tail end of both sidepanels. Glue ENGINE MOUNT F-11 and reinforcement F-12 into the place with epoxy. Put and glue 1/4 x 1/4 balsa stringers into the notches in the formers. Glue 3/8 tapered balsa shoulder stringers F-1 and F-14 into the appropriate place. Glue plywood kells F-15 and balsa F-16 into the place. Glue F-17 to the F-15. Glue F-18 through F-26 into the correct position. Plank top and bottom of fuselage with 3/32 balsa sheets. Glue F-28 through F-30 to the front of firewall F-2.

Cut the plastic windows, wheel pants and cowl parts from molded sheets as indicated inside of the molded sheets. Construct the plastic cowl with liquid cement contained in the kit. Trial fit the plastic cowl parts and if all fit well you're ready to cement. Fix a few point with scotch tape to keep the actual form and glue with liquid cement. The best way to use this is have a small paintbrush, clip it into the liquid cement and while holding the parts together allow the cement to run between them. Hold for a few seconds and they will be together. Glue the side windows and windshields to the fuselage with vinyl cement (not contained). (If you finish the fuselage with heat shrink plastic film, attaching the windows and windshields must be done after the covering.) Attach the cowl to the F-30s with self tapping screws.

Wing Construction: Glue ribs W-1 through W-9 into the notches of leading edges W-12 & W-13 and trailing edges W-10 & W-11. Take two 5/32 x 1/4 spruce spars and place into the notches in the ribs. Join two wing halves with W-14 and W-15. Glue ply W-16 and W-17 into the position. Glue balsa ribs W-18 through W-22 into the center wing. Put and glue 1/8 x 1/4 spruce stick into the notches in each ribs. Glue W-23 and W-24 into the place. Glue the spar webs W-25 through W-30 between top and bottom spars. Glue bellcrank mount W-33 into the place and reinforce the corner with 1/4 x 1/4 balsa stick. Glue wing strut hold block W-32 into the place with epoxy.

Attach the bell cranks on the W-33s. Put the aileron push rod into the wing as shown in the plan. Glue W-31 to the place. Plank top and bottom of wing with 1.5mm balsa sheets. Glue rib caps to the each ribs. Glue wing tip W-34 into the place. Glue W-35 and W-36 to the rear of center wing, 5/32 x 3/8 hard wood to the front of W-17. Round the leading edge and smooth whole surface with sandpaper. Attach the ailerons W-37 to the each wings with hinges. Make the wing strut with 1/4 x 5/8 spruce bars for fit the plane as shown in the plan. Fix the strut ends to the wing's W-32 and fuselage's F-17 with self tapping screws..."

Update 18/4/2023: Added main landing gear scan, thanks to Dwayne Josefski.

Quote: "Morning, My father is currently building a Pilot Cessna 152 from OZ plan oz3615 and he has identified that the main landing gear is not shown on the plan. So please find attached a photocopy (true size) of one of the original from my kit. Keep up the great work. Regards,"

Supplementary file notes

Main landing gear scan.

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