Welcome a real flying version of the iconic aircraft from the cartoon Tale Spin—the FT Sea Duck! The Sea Duck is a twin-engine 3-channel airplane that maneuvers easily on the water and flies great from a position on land.
Before building the Sea Duck, build both of your power pods and center your three servos. This build does not require linkage stoppers.
Start by building the wings and fuse top. Remember to remove the top wing surface where the nacelles will mount.
After assembling the main fuse top, fold up and glue the window pieces one at a time. Then slide the top fuse into the wing.
Remove the nacelles and mount them on the fuse/wing. Route the power distribution cable through the wing and route the ESCs.
Build the tail and rudder. Remember to test fit the tail assembly to the nacelles before gluing so you have a good fit.
After installing your pushrods and control horns, install your servos. Be sure to center your servos before installing them.
Test fit the control horn, then remove it and break the ailerons free. After beveling and reinforcing the ailerons, reinstall the control horn and glue it with the aileron and servo centered.
Connect your electronics and ensure that the motors without props are turning the right way.
Assemble the lower fuse section and glue it onto the upper fuse. Install and glue the rear door.
Test fit and mold the engine cowling before gluing into place to ensure you are happy with the fit.
Build the pontoon and install onto the wing. Brace the pontoon with popsicle sticks.
Install the battery so the plane balances on the reference holes on the wings. Check your throws, install the props and you’re ready for the maiden!
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FT SEA DUCK PLANS
FT SEA DUCK SPECS
- WEIGHT WITHOUT BATTERY: 2.45 lbs (1111 g)
- CENTER OF GRAVITY: 2.5” (64 mm) from leading edge of wing
- CONTROL SURFACE THROWS: 16˚ deflection – Expo 30%
- WINGSPAN: 56 inches (1422 mm)
- RECOMMENDED MOTOR: 425 sized 1200 kv minimum
- RECOMMENDED PROP: 10 x 4.5 prop (3s) or 9 x 4.5 (4s)
- RECOMMENDED ESC: 30 amp minimum
- RECOMMENDED BATTERY: 2200 mAH 3s minimum
- RECOMMENDED SERVOS: (3–4) 9 gram servos
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