Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Summary of Contents for Montana Blitzer
- Page 1 Speed 400/480 Me-109 Specifications Wingspan: 32 ½ ” Wing Area: 177 sq in Wing Loading: 12-16 oz/sq ft Weight: 15-20 oz Motor: Speed 400/480 or Brushless Cells: 8-10 cells Radio: 3 channels Copyright © 2004 by Montana Design. All rights reserved.
-
Page 2: Table Of Contents
Blitzer Assembly Manual TABLE OF CONTENTS INTRODUCTION: KIT CONTENTS: FUSELAGE ASSEMBLY: WING ASSEMBLY: HATCH ASSEMBLY: EMPENNAGE ASSEMBLY: FINISHING: CONTROLS: FLYING: Copyright © 2004 by Montana Design. All rights reserved. -
Page 3: Introduction
In the construction manual, we make only a few assumptions – the biggest is that you have built a model airplane before. The Blitzer probably isn’t the best choice for a first construction, but it is certainly fine for a second one. -
Page 4: Kit Contents
Blitzer Assembly Manual KIT CONTENTS: 1/16” balsa sheets numbered Sheet 1 through Sheet 11 1/16” birch ply sheet Sheet 12 Balsa nose blocks (3 total) (3) 1/8” square balsa, 24” (4) 1/16” x 1/8” balsa, 24” (2) ½” x 1” x 5” balsa wing tip blocks... -
Page 5: Fuselage Assembly
Blitzer Assembly Manual FUSELAGE ASSEMBLY: 1) Begin assembly of the fuselage by removing the left and right fuselage sides and doublers from their respective balsa sheets. Take care with your knife to carefully extend the laser-cut edges through the small retaining tabs. Test fit the parts to see the orientation. - Page 6 Blitzer Assembly Manual 6) Cut one piece of 1/8” square to the exact same length as the plywood hatch hold-downs, as shown in Photo 6. Cut another piece the same length as the width of former F4, as in Photo...
- Page 7 When you are sure of alignment, use thin CA to glue it in place. If you are building your Blitzer for rudder and elevator, the former will be opened in a later step to make clearance for the rudder pushrod.
- Page 8 Blitzer Assembly Manual OK, here is how to do it: Moisten front 3” of the fuselage sides. Wait about 5 minutes, bending slightly from time to time and adding more water until the wood is fairly flexible. Use a heat gun to speed up the process.
- Page 9 Blitzer Assembly Manual Photo 19 Photo 21 Photo 20 21) Add the two nose rings to the front of F1, carefully centered. 22) Glue the larger block to the top. Note that the block for the top side has square ends; the block with the angled ends is the chin block.
-
Page 10: Wing Assembly
Blitzer Assembly Manual WING ASSEMBLY: The Blitzer wings have no main spar as you are commonly accustomed to seeing. Instead, this wing design derives it strength from the monocoque wing skins. The “spars” that we will be installing provide alignment and filler but no significant strength. - Page 11 Blitzer Assembly Manual 29) Sand a bevel to the wing skin at the leading edge so that it makes the top curve smoothly into it, as shown on the plans “typical wing cross section” view, and in Photo 26. Do the same sort of thing on the trailing edge between the ailerons and R1, and R6 and R7.
- Page 12 Blitzer Assembly Manual 32) After this cures, do the same thing to the forward half of the ribs. After this cures, clamp together the leading edge as shown in Photo 29. Glue the leading edge, making sure that the seam is sealed closed.
- Page 13 Blitzer Assembly Manual 37) Tape the wing panels together at the root with the bottom edges aligned as shown in Photo 34. The tape should be on the bottom edge. 38) Set the wing panels on a flat table with the tips each blocked up ¾”.
- Page 14 Blitzer Assembly Manual 45) Put the aileron in its proper place, and tape there with packing tape on the bottom of the wing. Lay the wing on the edge of a flat table and sand it so that it matches the rest of the wing properly. Apply tape to the top side of the wing, then remove it from the bottom side.
- Page 15 Blitzer Assembly Manual 55) Sand round the leading and trailing edges of the sides and center support of the radiators. Install the two outside ones to the bottom of the wing and glue in place. Photo 42 shows this. 56) Trim the center support so that it clears the servo yet still provides support.
- Page 16 Blitzer Assembly Manual 63) Mount the air scoop sides at a slight angle as shown by the front section A-A on the plans, and as seen in Photo 47. Widen the hole in the chin block until it is smooth against the sides.
-
Page 17: Hatch Assembly
Blitzer Assembly Manual HATCH ASSEMBLY: 67) Laminate one piece of C1 to C2 with the bottom edges flush. 68) Attach all pieces of C1 and C1/C2 to the hatch floor. Attach two pieces of C4 behind C2 as shown in Photo 49. -
Page 18: Empennage Assembly
Blitzer Assembly Manual EMPENNAGE ASSEMBLY: 74) Tape the two elevator halves to the stabilizer so that they are in the tips align properly. The tape should be on the top side (signified by the center line on the stab). Insert the 1/16” ply joiner between them. -
Page 19: Finishing
The keys where the under-wing radiators attach together (Photo 59) You may finish your Blitzer with any type of finish you desire. Our favorite finish (we’re a little old- fashioned) is to spray it with several coats of clear Sig Nitrate Dope, wet sanding between coats. After this, we spray on appropriate colors to make the finish you desire. -
Page 20: Controls
Blitzer Assembly Manual CONTROLS: If your transmitter has expo, set the ailerons to at least –40 starting out. As you gain experience with the Blitzer, you may reduce this. Set the elevator to –10 expo for starters. 84) Install the elevator pushrod into the fuselage from the hole on the left rear fuselage toward the servo. -
Page 21: Flying
As soon as the prop bites, the Blitzer will accelerate rapidly and will quickly climb to altitude. Trim the plane for straight and level flight at full power, then reduce to ¾ power get a better feel. It should track very well with little or no trim changes across the power range.
Need help?
Do you have a question about the Blitzer and is the answer not in the manual?
Questions and answers