The Oriental is now complete and ready to fly (at left). Allen added decals made by Mark Gerber to include the Veco 500 crossed flags, the older AMA decals on the nose. The PAMPA decal is from PAMPA and the Chicago Screamliners decal was purchased on eBay. This latter decal (above) was found and purchased on eBay, copied with materials available from Hobby Lobby and applied to the fuselage side prior to clear coating the entire model.
lows a tank/engine shut-off near the end of the fuel load. Please take a look at that pic- ture carefully. I fuel-proof the new wooden mount with three coats of clear gloss polyurethane and sand between all coats except the last spray. The new metal tank is glued to the wooden mount as shown in the double tank picture with clear silicone or epoxy. I hold it in place with rubber bands until the glue cures. The tank is now a more permanent part of the mount. You can drill small holes in the fuse- lage at the slot locations on the new mount and attach with self-tapping wood screws, or you can drill two holes all the way through
the fuselage and glue 4–40 blind mounting nuts to the inboard side of the fuselage and hold the tank mount on with two 4–40 bolts of the needed length. The attachment holes should be centered on the engine thrust line, and the slots in the mount allow an adjust- ment of almost a half inch up or a half inch down.
This type of tank mount allows me to ad- just the tank height to match the level that is needed to enjoy an effective engine run for both inside and outside maneuvers in any Stunt pattern. It is fuel proof, and allows a cut-off at the end of the tank. You must wait until the tank is almost out to do this, but
when you are ready to stop the engine run, simply fly a very large loop on the downwind side of the circle, and then fly a very small one immediately after the large one. The en- gine should cut out, and you will have a full lap to land the model touching down on the downwind side of the circle.
At the end of a run, it is best to fly at 5 feet rather than high in the air. Flying high in the air will allow the engine and tank combina- tion to run lean, which makes it run longer. By flying at 5 feet high, the engine will be running richer, thus using more fuel. The ef- fectiveness of your cut-off loops will depend upon your own practice of the event.
This engine break-in stand (above left) was built by Charlie Reeves and Allen. Use of the six-ounce plastic tank or the re-plumbed quart can be used when first putting some runs on a new engine or testing a rebuilt engine. The stand is high enough to use up to 15-inch props during the break-in time period. While you cannot see it, the small piece of 1⁄8
× 1⁄8 plywood is glued to the inboard side of
the new tank mount (above right), but its location is more definitive in the next double tank picture. This allows the tank to completely empty at the end of the pattern engine run. Note the failure of the metal tank mounts (below left) and
how the new tank mount is built out of 1⁄8-inch aircraft plywood. The plywood is fuel-proofed with three coats of clear gloss polyurethane prior to gluing the tank to the mount. Sometimes a repair can enhance an already nice looking model. Recently Allen skinned the leading edge of his Olympuslanding gear during a hasty landing and had to re-paint the surfaces. He decided to re-finish only the leading and bottom edges of the white gear doors and re-paint (below right) the front and bottom green. Finally, a clear coat was added at the same time as the Orientalclear coat was applied.
FLYING MODELS
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