Advertisement
Quick Links
Advertisement
Related Manuals for Bengtson Company Albatros DII
Summary of Contents for Bengtson Company Albatros DII
- Page 1 Albatros DII 36” Albatros DII R/C Scale Model Instructions CONTACT INFORMATION The Albatros DII was designed by M.K. Bengtson Manufactured and Distributed by: Bengtson Company e‐mail: sales@aerodromerc.com Web Site: www.aerodromerc.com Copyright© 2005‐11 M.K. Bengtson All Rights Reserved Rev 07/11...
-
Page 2: Specifications
Albatros DII 36” Page 1 WINGS Albatros DII Thank you for purchasing the Albatros DII model for Wing Construction electric flight. Pin down, over the plan, the t/e, spars and wing tip, gluing as required. Add the leading edge stock after the THE MODEL basic frame is done as the stock is inserted in a rotated A semi scale adaptation of the Albatros DII, this model is fashion. Add the wing tips and align the front tip along designed to be easy to build and exciting to fly. the center of the leading edge. Sand the leading edge stock to be rounded and meet the ribs. Finished Model by Dave Ottney Wing Pinned to Plan POWER SET UP The 6V S400 motor powers the model using the Mini‐ Scalloping can be done easily by fitting sandpaper on a Olympus 2.33:1 Gearbox and a 10x4.7 APC prop. Battery dowel or other appropriately shaped object and simply power pack is an 8 cell 600maH Nicad or an equivalent sand the scallops. Start sanding at the center point of the weight Nimh scallop and stop as soon as the desired depth is reached. SPECIFICATIONS More than 215 laser cut parts Scale: ~1/10 ... - Page 3 Albatros DII 36” Page 2 Building the Fuselage Begin by building two fuselage side frames over the plan and allow to dry. Fuselage Nose Filler Balsa Blocks Frame Construction Detail Join the two frames over the plan with cross braces and the tail skid mount F7. Check, check and check again that this and ALL other structures remain perfectly aligned. The right side of the fuselage is a bit shorter than the left side. This is to build in right thrust and allow the spinner to rotate properly on the model. Former F1 is also angled a bit for down thrust. Place F7 carefully. It is designed to run down the centerline of the fuselage. It serves to position the vertical stabilizer and tail skid. Use a length of 1/4” diameter birch or hard balsa dowel at the end of Sand Fuse to Shape the fuselage. This gives the fuselage a nice rounded termination. Adding the Decking Add all the stringers and formers, and carefully trim to size and fit 1/32” sheeting (sheeting is optional). Some have also sheeted the fuselage sides with 1/32” balsa as well. Keep in mind that excess weight in the tail is to be avoided, so use these sheeting options with the lightest balsa available. Fuselage Construction Detail Decking Construction Detail Optional 1/32” balsa sheeting is shown over stringers. ...
-
Page 4: Tail Surfaces
Albatros DII 36” Page 3 Adding The Undercarriage Plates Remove from the board and add the plywood crosspieces that serve as u/c plates. TAIL SURFACES Lay out and glue parts of the tail surfaces on the plans. Blue Foam Inserted to Shape Fuselage Tail Surface Detail Sand the tail parts, rounding off all edges. Don’t add the horns or hinge the surfaces until after covering is complete. Blue Foam Sanded to Shape Sand the blue foam to shape. Dave chose to sheet the entire top, bottom and sides of the model with 1/32” balsa. Tail Surfaces Pinned on Plans LANDING GEAR The undercarriage is made from two pairs of 1/16” wire Sheeted Top, Bottom and Sides cut to the shapes as shown on the plan. Each half inserts It weighs only 3 oz. Copyright© 2005‐11 M.K. Bengtson All Rights Reserved Rev 07/11... - Page 5 Albatros DII 36” Page 4 into the mounting blocks, which are attached to the Spinner Components The spinner is composed of fiberglassed blue foam. The fuselage. They are set in place using epoxy. The joints spinner is made from blue foam which is tack glued to a where the axle and U/C legs meet should be cleaned with piece of 1/32” ply. Epoxy a short 1/4” diameter dowel to the wire bush on a Dremel tool. With the joints nice and the back in the center of the disk. Place the assembly in a shiny, a bit of brass or copper wire binds the joints. Solder drill chuck and sand the foam to shape while it spins. using plenty of heat. Glass the foam using standard glassing techniques. (Note, Minwax Polycrylic is an excellent substitute for epoxy). Some modellers prefer an alternate method. Instead of When the epoxy is ready, cut the excess fiberglass away. wire and solder, lash the parts together with Kevlar Then remove the plywood and carve out the necessary thread and CA glue. Finish the joint with epoxy. This recess for the propeller. Drill out the dowel on the method always works and avoids the cold solder joint that plywood disk. Glue the spinner to the plywood disk after can fail in time. Be sure to use Kevlar or Nylon thread, as the prop is mounted to the model. It should be perfectly common cotton thread will fail. aligned with the fuselage. It looks complicated but in practice the process goes easily and works very well. It is best to attach the landing gear after the bottom of the fuselage is covered and painted as covering and painting with the gear on is awkward. DUMMY MOTOR Spinner Detail COVERING ...
- Page 6 Albatros DII 36” Page 5 WHEELS hold the wheel in place and then the cone is attached. Gluing the ply sides on the ¼ “balsa core makes the basis This method makes a very nice scale appearance. for the wheels. Use the brass hub for alignment. Epoxy INSTALLING THE RADIO CONTROL GEAR the hubs in place and add a sufficient amount of epoxy Aileron Servos around the base of the hub to reinforce the connection of the hub to the ply. Plywood reinforcing hubs are Aileron servos are mounted in wing and attached with provided that are to slip over the brass tubing as shown. short threaded rods to the ailerons. Use a “Y” wiring Alternatively, gluing an additional ½” square piece of harness connector to wire the servos to a single radio scrap 1/8” balsa with a hole drilled in the center can be connection. If differential aileron throws are desired, substituted. Next, CA glue the neoprene cording together rotate each servo horn forward about 20 degrees, while to from a “tire”. Use thin CA sparingly as the CA bonds maintaining the neutral position of the aileron. This very aggressively to the rubber. Press the CA wetted ends should counter any adverse aileron yaw. together for an instant bond. The best way to align the ends is to glue them while they are in place on the wheel. Battery Tray Then attach the tires to the wheels and CA in place. A After all the above has been placed, mount the battery thin bead of CA around the rim makes for a secure tire. tray made from 1/8” balsa and use the battery position to Paper cones are cut out. Use a ballpoint pen to score each balance the model as shown on the plan. line on the back to make an impression of “spokes.” It is ASSEMBLY helpful to do this operation on a paper tablet so that the pen makes a good crease. Fold the paper along the crease Wing lines to exaggerate the raised lines. One of the sections Using Locating Dowels And Aligning Wing Panels forming a wedge is cut out. Make cuts to the center of the ...
-
Page 7: Contact Information
Albatros DII 36” Page 6 fishing hook eyes, straight pinheads or small eyelets to Balancing The Model attach the lines. While not technically required these Balance the model at the point shown. It is best to wires can add a degree of strength to your model. position the battery to do this operation. Windsock Datafiles “Albatros Fighters “publication has FLYING details on placement and markings. Available at The model should ROG on pavement or hard surfaces. http://www.aeroplanebooks.com/ On grass, the model may require hand launching. Be careful that your hand or fingers do not catch on the lower Battery hatch rigging. Launch firmly and level. Let the model gain altitude slowly off the runway. Applying too much up elevator at slow speeds risks a stall. Make your turns gently as tight turns risk tip stalling in any model. Don’t expect the elevator to make the model climb. Think of the elevator as a device to change the attitude of the model. The wing and airspeed ultimately make the model climb. Often down elevator applied at stalling can avoid a major crash. The most important details for proper flight operations are: 1. CG location. Tail‐heavy models never fly well or at all. Fashion a Battery Hatch from Soft Balsa 2. Down and right thrust 3. Straight and non‐warped wings. ...