Next is a Biplane sport job that reminds me of an R/C Sport job that was in one of the major model magazines several years ago, that one of our club members built and was a real performer, it was called a "Dreamer" and was.40 powered. I don't know if this is the same one only larger or not.
This is by BisCap Plans Service, and according to
Scale R/C Modeler the Cap part of BisCap is Jack Capens. Whom I
believe I use to compete against in control line scale back in
the fifties and sixties! I know so what! Well just a bit of
reminiscing there. Anyway, on with the Acro Dreamer.
The specs are: Span 64 inches, weight 15 lbs., wing area
1520 square inches, for a wing loading of about 22.75
ounces per square foot.
The fuselage is built from 1/4" square Basswood for longerons and uprights with 1/4" x 1/8" diagonals. Front of the fuselage to behind the cockpit area is from 1/4" Luan plywood with 1/32" ply top sheeting. Cabane is welded up from flattened 3/8" O.D. steel tubing. (Brake line?) A C.B. Associates tailwheel is used and landing gear is formed from 7/32" music wire. Fuselage formers are 1/8" Luna ply and all stringers are Basswood. The Empennage is built up of Balsa and Basswood with laminated edges.
Elevator linkage is internal. The engine cowl and
wheel pants are available from T & D Fibreglass.
Both the top and bottom wings are built in one piece. The
top wing has 6 degrees sweepback with ailerons on the
bottom wing with top wing ailerons an option.
Front spars of both wings are 3/8" square Basswood and
rear spars are 1/4" square Basswood. All ribs are from 1/8"
Luan ply with lightening holes.
Tips are laminated Basswood strips. Leading edges
are sheeted top and bottom to the front spar, and with shear
webbing forming a D section, which is very light and very
strong. Interplane struts are "I" struts made from ply and
screwed to the wings, the lower wing has 3 degrees
dihedral. This should build into a very aerobatic airplane
and at 15 lbs. with a Quadra and a 16/10 prop have plenty of
power.