Advertisement
Quick Links
OMICRON
Our latest iteration of precision indoor pattern F3P style design! The omicron was born to approach a goal of advancing the state of
the art in terms of easily attainable performance. The Omicron provides a large fraction of the performance of the best F3P models,
for a small fraction of the effort and cost.
Please read and understand all steps to these instructions before beginning assembly. This plane is not a toy and is
potentially dangerous to operate. Children should not operate this aircraft without adult supervision. To start assembly,
gather the required electronic hardware and building supplies. You will need some foam-safe glues, and optional paint.
Look for the recommended electronic hardware at the end of these instructions and painting tips in that section.
1
Advertisement
Related Manuals for Buzzard Models OMICRON
Summary of Contents for Buzzard Models OMICRON
- Page 1 OMICRON Our latest iteration of precision indoor pattern F3P style design! The omicron was born to approach a goal of advancing the state of the art in terms of easily attainable performance. The Omicron provides a large fraction of the performance of the best F3P models, for a small fraction of the effort and cost.
- Page 2 Supplies and tools - We like to use the BSI Super Gold Plus to basically glue everything with. It is a medium viscosity foam safe CA (cyanoacrylate) glue which works well on foam to foam and foam to carbon joints. On these types of materials it really needs to be accelerated with the BSI Insta-set, or curing can take some time.
- Page 3 Kit contents-...
- Page 4 Trim Parts - With a sharp hobby knife, remove the extra foam and tabs from all of the parts. Smooth any tabs that are visible when done.
- Page 5 Hinge beveling - Start by beveling the bottom edges of all of the hinges. Use a sharp edge of a table or board to support the foam while doing this. Fold the hinges open, and place over the corner of the table with the hinge side down. Using 120grit paper, bevel the corners of the foam just enough to allow the hinges to flex closed at least 45 degrees.
- Page 6 Picture of hinge flexed closed to 45 degrees - Flex the control surfaces up and down and verify free movement. Sand more if necessary to allow easy and free movement. Do the rudder, elevator, and aileron hinges the same way.
- Page 7 Empennage assembly - With the elevator and rudder hinges beveled and freely flexing, dry fit the carbon fiber reinforcements in it’s slots,, and liberally apply a foam safe CA glue with an extender tip. Foam Cure or white craft glue may also be used. Dabb the excess glue off with a paper towel before it dries.
- Page 8 Painting- You can optionally paint now, or after the covering is in place. It is easier to do it now. Basic craft acrylic paint works well if thinned and brushed on conservatively. Makeup brushes work for bigger areas. Alternatively, airbrushing is the best way to paint, alcohol or india inks are ideal, the same basic acrylic paint thinned one-to-one with windshield washer fluid works great through an airbrush.
- Page 9 Assembly - Working on wax paper, glue the right and left wing halves together. Add the 1.2mm carbon mainspar, and the 0.8mm aileron trailing edge and horn reinforcement. The curved forward aileron reinforcements are 0.5mm carbon. Dry fit the parts and then glue.
- Page 10 Aileron Horn Installation - Dry fit the aileron horns before gluing with CA...
- Page 11 Wrinkle your mylar - This film is normally "wrinkled", unpackage your film, form into a ball with your fingers, repeatedly compressing and releasing many times until a uniform "wrinkle" pattern is formed in the film. This provides a uniform surface finish free of small wrinkles or other defects, helps prevent the film from resonating with airframe vibrations, and provides additional visibility by reducing the transparency of this very clear film.
- Page 12 Covering - Layout the mylar covering on a flat work surface, tape the edges down pulling it just taught enough to remove any wrinkles. Layout where your parts will fit before applying glue, make sure the hinge sides are down. One part at a time, remove each from the covering film, and very lightly mist one side with 3M 77 spray adhesive.
- Page 13 Trim the covering - With the parts still upside down, trim around their perimeters with a new sharp hobby knife blade over a cutting mat.
- Page 14 Painting - Here is an example of a similar plane that was painted after covering.
- Page 15 Assembly - Glue the middle fuselage in place. Install the two 0.8mm carbon longerons, they just float over the main wing spar.
- Page 16 Lower fuselage install - dry fit, and then glue with your glue of choice.
- Page 17 Bracing - Install the angled 0.8mm fuselage bracing, and 1.0mm main spar brace.
- Page 18 Aileron Bracing - Install 0.5mm aileron bracing. Tie ends together and put a drop of CA on it, trim ends.
- Page 19 - Glue 12.5” main gear legs into place, install 0.8mm spreader with two pieces of .045” x .5” heatshrink. Main gear legs...
- Page 20 Rear gear braces - Install rear gear braces and wheel pants.
- Page 21 Assemble servo arms - Locate the composite servo arms and the nylon straight servo arm from the servo hardware kits. Sand both mating surfaces flat with 120 grit sandpaper and clean with alcohol. There are two holes in the composite arm that correspond with holes in the nylon arm, pin with two pieces of 0.8mm carbon, through a piece of wax paper into a block of foam or otherwise pinnable substrate.
- Page 22 Aileron pushrod install - With everything still flat on the table, install 1" zee-bends to a piece of 0.8mm carbon with heat shrink. Use the outer hole on the aileron servo arm, and the middle holes on the aileron horn. Verify that the aileron servo is centered, and shrink the tubing.
- Page 23 Upper fuselage - Find a secure way to support the fuselage, these foam blocks work great. Glue the upper fuselage in place. Glue in the 0.8mm dia. carbon fiber upper to lower fuselage reinforcements.
- Page 24 Vertical Stabilizer- The vertical stabilizer can be glued in place, pins can help hold the part in alignment.
- Page 25 Rudder and Elevator Pull-Pull- You can now install the rudder and elevator pull-pull strings. Tie one end of the spectra thread to one side of the control surface horn, thread the other end up through one side of the servo arm, across the top, and down the opposite hole in the servo arm, then to the other hole in the control surface horn.
- Page 27 Motor Install - Dry fit the motor mount over the four protruding motor mount pins. When satisfied, glue the mount to the fuselage, and add a drop of glue to the protruding pins. When dry, trim the pins leaving a small glue blob on the front side of the mount to make sure it is secured to the pins, the pins provide the majority of the strength.
- Page 28 Decal Installation - Now is the time to add decals, paint, landing gear, or anything else that will affect the center of gravity. Your kit includes a sheet of water-slide decals. These are used because they are much lighter than vinyl type stickers. Cut the decals out with a sharp hobby knife.
- Page 29 Center of Gravity - The CG will be set using the battery location. Build a CG test stand, use the tips of your fingers, or even the eraser end of two equal length pencils shoved in some styrofoam. A good place to start is having the CG located at the main wing spar, more advanced pilots will like it a little further back.
- Page 30 Battery Mount - With the battery location determined, use the supplied micro zipties to mount the battery. Cut or drill holes on either side of the battery. Route the ziptie around the battery, with the ratchet part of the ziptie on the bottom of the fuselage. Leave the ziptie loose enough so that the battery slides in and out with a desired amount of friction.
- Page 31 Flying Tips - The Omicron has very low wing loading and does not like much wind. For your first flight, I would recommend flying either in a large indoor area such as a gymnasium, or wait for a dead calm day outside. Once you get comfortable with the flying characteristics you will be able to fly in much smaller areas, and outdoors in more wind.