Komet Prepared for Launch
Need to add some excessive zip into your subsequent mannequin airplane undertaking? Strive changing a glider right into a rocket-powered NASA analysis plane. On this case, the glider is an Aero-Graphics Messerschmitt Me-163B “Komet” package. Initially designed for the hard-to-find Jetex-50 rocket propulsion system, our “Pocket Rocket Komet” is powered by a single A3-4T Estes mannequin rocket engine. Though we received’t be launching our Komet like a traditional plane (that might be far too harmful with mannequin rocket engines), you need to be capable to obtain an altitude of 30 toes adopted by a gradual mild glide again to your launch pad.
For those who’d like a bit extra management over the flight path of your Pocket Rocket Komet, attempt including the receiver/motor from a RadioShack ZipZap. The entrance steering motor could be salvaged from one in every of these micro RC vehicles and related to the Komet’s rudder. Merely slice the package’s rudder in half, connect three units of alternating cloth hinges to each the movable rudder and the fastened vertical stabilizer, join a wire management linkage from one of many ZipZap’s moveable steering wheels to the rudder, and mount the micro receiver and battery within the Komet’s cockpit space. Simply you’ll want to mount the receiver/battery immediately over the middle of stability level that’s indicated on the package’s plans and route the receiver’s antenna exterior of the Komet.
All set? OK, let’s punch some holes within the sky.
TIME: 7 HOURS
- Aero-Graphics Messerschmitt Me-163B package (Shorty’s Basement; $25.50)
- Estes Industries Quark rocket package (native buy #EST 802; $5.89)
- Estes Industries A3-4T engines for mannequin rockets (native buy #1507; $7.69)
- 1/8 x 36-inch wood dowel (native buy; $0.25)
- Scrap aluminum foil
Komet ZipZaps Management System
- Non-obligatory: RadioShack ZipZaps Barricade (RadioShack #600-0181; $6.97)
1. Assemble the Messerschmidt “Komet” in keeping with the package’s directions. You’ll make three alternations to the inventory plans.
1a. Line the Jetex-50 motor trough with the scrap aluminum foil. This can defend the balsa and tissue from the recent exhaust gases produced by the rocket engine.
1b. Use the rocket motor physique tube from the Quark rocket package because the motor mount for the Komet (we’re eliminating the Jetex-50 motor from the package). Assemble the physique tube and nostril cone from the Quark package. Subsequent, measure the actual placement for the physique tube/nostril cone contained in the Jetex-50 motor trough. Check with the Komet plans for this placement. Additionally, preserve the identical middle of stability level that’s illustrated on the Komet’s plans. Now, minimize off the nostril cone that’s in extra for this placement. Completely glue the physique tube/nostril cone into the Komet’s motor trough.
Komet Rocket Engine Mount
1c. Insert the launch lug from the Quark rocket package into the tail of the Komet. This lug will information the Komet on the wood dowel throughout launch.
2. End the Komet and check its airworthiness. Use the check gliding process that’s indicated within the package’s directions. This step is significant for attaining a flight worthy glider.
3. Choose an appropriate launch web site. A big open space with restricted bushes and no dry grass is right.
4. Stick the wood dowel into the bottom. Use a degree to make sure that the dowel is perpendicular to the bottom.
5. Insert one A3-4T engine into the Komet. Comply with the Estes Industries’ directions for correct igniter insertion and secure launch controller operation.
6. Clear the world of the Komet launch pad and blast off. The Komet ought to streak upward, eject the spent engine, and glide in a lazy spiral again to the bottom.
Please watch this brief video of an improperly balanced Pocket Rocket Komet launch, flight, crash, and burn. Keep in mind youngsters, DON’T do this:
This undertaking is excerpted from _101 Outer House Tasks for the Evil Genius, by Dave Prochnow (McGraw-Hill, 2007)._
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