Front landing gear legs. Carve from balsa block

Size: px

Start display at page:

Download "Front landing gear legs. Carve from balsa block"

Gilbert Harrington
7 years ago
Views:

1 0 Carve these parts from balsa blocks C-1(2) C-2(3) Note: these cross pieces do not have formers attached. They help establish the proper curve of each fuselage side. Front landing gear legs Carve from balsa block Landing gear legs are.025 piano wire Rear la flat view side vie shape is R Peck thrust bearing F-2T F-1 F-3T F-4T F-5T 1/32" plywood disk F-2B 1/16" x 1/4" balsa F-3B(2) F-5B F-4B(2) 1/16" x 3/16" balsa Reference photos of a Bea Spherical balsa spacer 1" Diameter wheels

Front landing gear legs Carve from balsa block Landing gear legs are.

2 Carve these parts from balsa blocks Top and bottom stringers are shown for clarity these cross pieces do not have s attached. They help establish per curve of each fuselage Bottom longeron Windshield Pattern Landing gear legs are.025 piano wire Rear landing gear legs - flat view. Bend to the side view after basic shape is formed. Rear landing gear legs side view Fin/Rudder outline is two laminations of 1/32" x 1/1 F-4T F-5T Right side window location F-10 F-6T Note: This longeron sits on top of the uprights. See the fuselage crossections for reference. F-7T F-11 T-1 See cross se orange yellow. Fuselage has a red trim stripe that include Matt black anti glare panel forward of the windshield. Star F-7B 1/8" Balsa F-6B Red F-5B Green Yellow Fuselage core structure is F-4B(2) 1/16" square balsa 1/16" x 3/16" balsa Windows are cut in 1/32" sheet balsa that fits between the top and center longeron Reference photos of a Beaver in the Ghana colors Color and Marking Notes: Markings are those of the Ghana Air Force. Base color is the nose. The fuselage is white above the red trim stripe. on the fin and numerals are black. The national insignia green at the center, then orange yellow, and red for the outer ring.

Bend to the side view after basic shape is formed.

3 Top and bottom stringers are not shown for clarity Windshield Pattern G208 ear landing gear gs side view Fin/Rudder outline is two laminations of 1/32" x 1/16" balsa T-5 R-1 R-2 T-6 longeron sits on top of the uprights. elage crossections for reference. F-7T T-3 T-1 T-9 T-2 T-4 T-7 R-3 See cross sections R-4 F-9 ow Red F-7B Fuselage core structure is 1/16" square balsa 1/8" Balsa " sheet balsa that center longeron nd Marking Notes: s are those of the Ghana Air Force. Base color is yellow. Fuselage has a red trim stripe that includes. The fuselage is white above the red trim stripe. ck anti glare panel forward of the windshield. Star in and numerals are black. The national insignia t the center, then orange yellow, and red for the g. F-8 Tail wheel leg is.025 piano wire Tail wheel leg flat pattern DeHavilland Otter 21.5" Span Rubber Power Scale Model Original Desgin by Pres Bruning - Nov. '74 CAD Drawing by Paul Bradley - June 2010 Sheet 1 of 5

F-7T T-3 T-1 T-9 T-2 T-4 T-7 R-3 See cross sections R-4 F-9 ow Red F-7B Fuselage core structure is 1/16" square balsa 1/8" Balsa " sheet balsa that center longeron nd Marking Notes: s are those of

4 0 Notch the top of the upright at fuselage station F-7 When laying out out each fuselage side please note that the top longeron rests on top of the uprights from station F-7 forward. At station F-7 the upright is notched to one half it's depth at the top. The top longeron is flush with the uprights at stations F-8 and F-9. The center stringer/longeron rests on top of the uprights from station F-7 forward. It is flush with the upright at station F-8 where it ends. F-2 F-3 F-4 F-5

At station F-7 the upright is notched to one half it's depth at the top.

5 at the top longeron rests on F-7 the upright is notched to with the uprights at stations of the uprights from station here it ends. F-4 F-5 F-6 F-7

6 F-7 F-8 F-9 DeHavilland Otter 21.5" Span Rubber Power Scale Model Original Desgin by Pres Bruning - Nov. '74 CAD Drawing by Paul Bradley - June 2010 Sheet 2 of 5

7 0 Wing struts are 1/16" x 1/4" spruce W-1 W-2 W-2 W-3 W-2 W-2 Note: Root rib is slanted 3 degrees to accomodate dihedral angle National insignia on to are on the bottom W-2 W-2 W-2 W-2 W-2 W-3 1/16" Square balsa 1/16" Balsa

8 truts are 1/16" x 1/4" spruce 1/8" x 5/32" Balsa 9/16" Dihedral under each tip W-3 W-2 W-2 W-2 W-2 W-2 Carve the tips from ba rees 3/32" x 3/16" balsa National insignia and nu top wing surface National insignia on top of wing, numerals are on the bottom W-1 T-1 T-2 T-2 T-4 W-2 W-2 W-3 W-2 W-2 T-3 T-7 Make these parts from e balsa 1/16" Balsa 1/16" Balsa Wing strut mounting pad. from 1/16" balsa.

National insignia on top of wing, numerals are on the bottom W-1 T-1 T-2 T-2 T-4 W-2 W-2 W-3 W-2

9 1/8" x 5/32" Balsa 9/16" Dihedral under each tip Wing cross section W-2 Carve the tips from balsa blocks W-1 (2 1/16" balsa) W-2 (14 1/32" balsa) 2" x 3/16" balsa National insignia and numerals are on top wing surface W-3 (2 1/16" balsa) Wing root rib angle guide W-1 T-1 Make this set of parts from 1/32" balsa R-2 T-2 T-4 T-3 T-2 R-3 R-4 T-6 T-5 T-7 Make these parts from 1/16" balsa R-1 T-9 1/16" Balsa Wing strut mounting pad. Make two from 1/16" balsa. DeHavilland Otter 21.5" Span Rubber Power Scale Model Original Desgin by Pres Bruning - Nov. '74 CAD Drawing by Paul Bradley - June 2010 Sheet 3 of 5

1/32" balsa R-2 T-2 T-4 T-3 T-2 R-3 R-4 T-6 T-5 T-7 Make these parts from 1/16" balsa R-1 T-9 1/16" Balsa Wing strut mounting pad.

10 F-2T F-3T F-2T is flat view F-1 F-2B F-3B C-2 1/8" Balsa C-1 1/8" Balsa Note: Upright at station F at the top to 1/2 it's depth F-6T F-7T F-8 F-6B F-7B Right side windows - 1/32" balsa Motor peg from 1/8" Left side windows - 1/32" balsa

11 Cowl air F-11 F-3T F-4T F-3B F-4B Note: Upright at station F-7 is notched at the top to 1/2 it's depth F-10 All formers are 1/16" balsa unless otherwise noted F-8 F-9 Fin/Rudder lamination form " balsa Motor peg support - make 2 from 1/8" balsa Exhaust Faring - Make two windows - 1/32" balsa 7/32" Al Tubing

otherwise noted F-8 F-9 Fin/Rudder lamination form " balsa Motor peg support -

12 F-4T F-5T F-4B F-5B Nose plug - 1/32" plywood erwise noted Fin/Rudder lamination form two Cowl air scoop DeHavilland Otter 21.5" Span Rubber Power Scale Model Original Desgin by Pres Bruning - Nov. '74 CAD Drawing by Paul Bradley - June /32" Al Tubing Sheet 4 of 5

5" Span Rubber Power Scale Model Original Desgin by Pres Bruning -

13 0 The side windows fit between the top and center longerons. Use 1/32" balsa shims between the window panels and the uprights. Wing halves a located by the edge, and spa former F-10. F spruce wing s

14 s. Use rights. Wing halves are glued to the fuselage sides. They are located by the extensions of the leading edge, trailing edge, and spar that fit into the appropriate slots in fuselage former F-10. Flight loads are carried by the 1/16" x 1/4" spruce wing struts. The rem plywoo parts C parts th fit insid former of the d spheric radial e or othe

fit into the appropriate slots in fuselage former F-10.

15 The removable nose plug is assembled from a 1/32" plywood disk that fits inside the opening in cowl parts C-2. It is retained in the nose by the square parts that are glued to the back of the disk and that fit inside the opening in cowl parts C-1 and fuselage former F-1. A spacer is needed on the forward face of the disk to provide prop clearance. The spacer is spherically shaped to simulate the front case of the radial engine used on the full scale aircraft. A Peck, or other suitable, bearing is used in the spacer. age When forming the nose ring do not fully cut out the square hole in parts C-1. Make cuts along each side but leave the corners un-cut. Laminate the parts making sure the square holes line up. Use a 2-56 bolt in the center hole to hold the laminations. Place the bolt in an electric drill and use the drill to turn the nose ring to shape. Once the nose ring is shaped cut out the square hole. DeHavilland Otter 21.5" Span Rubber Power Scale Model Original Desgin by Pres Bruning - Nov. '74 CAD Drawing by Paul Bradley - June 2010 Sheet 5 of 5

A spacer is needed on the forward face of the disk to provide prop clearance. The spacer is spherically shaped to simulate the front case of the radial engine used on the full scale aircraft.

Build and Fly the Fokker D- 8

Details are carefully carried out. Note movable controls The high wing gives it unusual stability Build and Fly the Fokker D- 8 Complete Data From Which You Can Build a Successful Model of a Famous German