Siemens Schuckert D-III (oz14725)

About this Plan

Siemens Schuckert D-III. Peanut scale model WWI German biplane fighter.

Direct submission to Outerzone.

Planfile includes full build instructions.

Quote: "Siemens Schuckert D-III ASSEMBLY INSTRUCTIONS. Cut all parts from balsa sheets, leaving paper pattern attached until just before using part. This keeps small thin parts from splitting so easily, and there is no printing on parts when they are assembled. I would recommend using an aliphatic resin glue such as 'se-cur-it' or 'Tite-Bond' since they do not shrink when drying (which would warp these thin sections). Cover plan with wax paper or Handiwrap to prevent glue sticking to plan.

WINGS: Construct wings over plan using parts as noted, with 3/32 sq balsa leading edge and 1/16 sq balsa spars. Both wings shall have 1/4 in dihedral measured at the strut attachment rib. Build outer portions first, then block up tips and build center sections. Cover wings with tissue and water shrink (be sure tissue is cemented to ribs where struts attach.

TAIL: Tail sections are constructed over plan using strip stock as noted. This type of construction is very light and strong if joints are accurately cut and cemented. Select the lightest balsa for these pieces. sand outside to smooth contour and round the edges. Cover with tissue and water shrink.

FUSELAGE: Construct two fuselage sides over the Side View (frames shown hatched for clarity) then assemble together over top view, cementing in cross pieces where indicated by black dot on side view. Glue on formers, N3, all longerons and strut anchor blocks. Sand fuselage to round shape and add cockpit cover. Cover fuselage with tissue (except where lower wing mounts) and water shrink. Build tail skid, cover with tissue and shrink, and attach to fuselage.

ASSEMBLY: Assemble wings and tail surfaces to Fuselage checking for proper alignment. Construct landing gear struts and axle and wheels, and glue to fuselage. Materials are provided for balsa wheels, however plastic and rubber wheels of vintage scale are available at your Hobby Dealers.

NOSEBLOCK: Carve noseblock (N1, N2 and N3A) and drill 1/8 in hole for thrust bearing (note downthrust) side thrust may be accomplished with shims later. Assemble prop shaft, prop, thrust bearing and nose block as shown, then bend winding hook in end of wire. Tie ends of rubber motor together (lubricate with castor oil or ruber lube, except for knot) and install in plane with knot at rear. This motor should be stretch wound for best results.

After model is assembled, it should be painted with one coat of clear dope thinned out to 50% consistency (full strength dope will warp structures beyond control).

Plane must balance at point shown or slightly forward. Stalls or dives are corrected by re-mounting the elevator at a slightly different angle. Glide turn is set by offsetting the rudder slightly. Power turn is set by shimming the side of the noseblock.

Check all surfaces carefully for warps before flying, and remember - biplanes fly slowly so give a gentle forward thrust to release plane, or allow it to ROG. Happy Flying."

Supplementary file notes

Printwood.

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