Sea Hawk (oz15800)
About this Plan
Sea Hawk. Rdaio control sport float plane model. Wingspan 50 in, wing area 437 sq in. For .20 to .40 engines.
Quote: "The Gee Bee Sea Hawk has been designed to give unsurpassed water and flying performance if built according to the following instructions. For the best results, keep the model light and use regular model airplane glue for the entire construc-tion and epoxy only where indicated. White glue (water soluable) should not be used at all.
Fuselage: Step One - Join 3/32 fuselage doublers to 3/32 fuselage sides using contact cement or model glue. Make sure that the doubler starts 1/4 back from nose to allow for fire wall. Make one right and one left. Refer to drawing and mark locations of all bulkheads and 3/32 x 1/4 uprights. When dry glue in stringers and uprights aft of doublers as shown.
Step Two - Lay completed side on bench and attach fire wall, 1/8 ply bulkhead and 3/16 balsa bulkhead checking as they set to assure that they are 90° to the side. The fire wall should be glued in with epoxy glue. Also attach front and rear 1/4 ply landing gear blocks as indicated using slow curing epoxy. When dry, locate and glue on other side.
Step Three - Bevel and pull rear of fuselage together and cement, making sure body stays true. Epoxy 3/8 triangular stock to fire wall as shown. At this point you should locate and drill for what ever type of motor mount you plan on using. Also make a tank mount from the 1/8 x 3 stock in kit and secure tank allowing room for throttle control wire.
Step Four - Cover bottom of fuselage with 3/32 x 3 sheet - grain running cross way. When complete locate push rods or nyrods for control system and then sheet top.
For seaplane flying the nyrod system for controls in the fuselage is the best because you can make a water tight exit hole in the rear for rudder and elevator. But some still prefer the push rod system so use which ever you like best.
Note when sheeting the top of the body that the sheeting goes beyond the bulk-heads in the radio compartment area and then the 1/8 x 1/4 wing saddle is made. This is important because it assures that the wing will completely cover the R/C compartment and with the foam wing seal tape included in kit the area will stay completely dry as long as the wing stays on. Do not change this!
When all is dry, sand and finish fuselage your favorite way keeping in mind weight. Light weight silk span (00) and dope make a good light weight finish over wood.
Tail Surfaces: The tail surfaces are conventional in construction. Glue the various pieces of 3/16 stock together. Recommend the dorsal fin not be glued to the vertical stabilizer at this time. A better fit can be obtained during final assembly when the tail surfaces are joined to the fuselage.
Shape the elevator tips. Taper the trailing edges of the control surfaces if desired. Pin the nylon hinge material in place with pins, toothpicks, dowels, etc. The . 010 nylon material is flexible enough that it does not require scoring by bending it double at the hinge line. Finish tail surfaces with fine sandpaper and dope again keeping in mind weight.
Wing: (Cover plans with wax paper.) Step One - Pin 1/16 sheeting to plans as shown. Glue in 1/16 x 1/4 lower cap strips and 1/16 sheet where aileron push rod exits wing.
Step Two - Locate lower rear 1/8 x 1/4 spar first and glue to bottom sheeting. Using wing ribs as a guide, glue down front lower spar then glue in all the ribs. Proceed with leading edge, top spars and trailing edge stiffner at the center section. Tilt the center rib 3' towards tip for dihedral angle.
Step Three - Cut the trailing edges off of two ribs to allow the training edge stock to fit. Install these first two ribs nearest the center section. Use a template or gauge and tilt the first two ribs 3 degrees toward the wing tip. Install the remaining ribs and tapered stock and top 1/8 x 1/4 spars. Use a razor saw (or similar) to cut four 1/16 slots in the first rib to install the four 1/16 plywood doubler..."
Direct submission to Outerzone.
Quote: "Hi, please find herewith attached building information for the Gee Bee Sea Hawk float plane. I saw many request on RC forum for these. This kit was manufactured by the GEE BEE line... I can't find any link to that company. Thanks for all the work Outerzone does to keep those plans alive.
Regards,"
Supplementary file notes
Instructions.
Parts tracings.
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(oz15800)
Sea Hawk
by Don Foster
from Gee Bee Line (ref:RC-03)
50in span
IC R/C Floatplane Kit
clean :)
formers unchecked
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Submitted: 14/01/2025
Filesize: 559KB
Format: • PDFbitmap
Credit*: MarcStAmant
Downloads: 330


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- Sea Hawk (oz15800)
- Plan File Filesize: 559KB Filename: Sea_Hawk_oz15800.pdf
- Supplement Filesize: 390KB Filename: Sea_Hawk_oz15800_instructions.pdf
- Supplement Filesize: 842KB Filename: Sea_Hawk_oz15800_parts_tracings.pdf
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Notes
* Credit field
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Scaling
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