JETEX ENGINE PDF

was set up in and, with its active forum, quickly became a comprehensive online resource for free flight jet modellers all over the world. The tiny aluminium motor burns pellets of solid fuel. So the fuel won’t go up all at once like a firecracker, it is especially treated to burn quite slowly. The Jetex. I’ve got a jetex motor and some fuel in the draw if it is of any interest. jet engines” and talks about the Jetex 50, Jetex and Jetex

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Jetex and Wimco ready-to-run models.

The launch top right is not part of the Jetex range [image info]. Jetex Type 50C [image info]. Jetex rocket engines and accessories [image info]. During the war, IMA had produced drones for target practice for the military, and had upgraded jete drones with small rocket boosters. With the ability of the Ministry of Defence to get scientists and engineers form uetex fields working together, ICI were tasked with producing a more convenient rocket fuel for the target drone boosters, and after John died in and Bill and Joe left IMA, the two remaining members of the original team decided to further refine and commercialise the rocket boosters for the model aircraft enginf.

To the model aeroplane community, a cover image of a radio controlled aeroplane with no propellers must have been shocking and intriguing. Wilmot and Mansour initially only produced the engines perhaps because they didn’t initially have the time to also design and put into production actual planes, and perhaps because of not wanting to immediately go into head-on competition with their previous company, which was backed by the giant Lines Brothers empire.

As a result, initial Jetex-powered model aircraft were produced and sold independently by other companies, who were probably pleased to dngine able to concentrate on just making the aircraft models and having Jetex supply the standardised ready-made power plants. Later, with the acquisition of a further ex-IMA designer or two, Jetex started producing their own range of model aircraft, cars and boats.

The popularity of wngine Jetex system in the s was due to how well the system had been thought out. The propellant guanidine nitrate was comparatively slow-burn, with a comparatively cool exhaust and a decent burn time, which meant that a model aircraft didn’t have to deal with severe stresses or have to have extravagant fireproofing, and the reusable shell could be made of aluminium or aluminium alloy with a lower melting point. The casing design included a sprung safety release valve so that the rocket wasn’t prone to exploding if something went wrong, and the fuelling process involved placing a engije coil of fuse against the pellet’s flat face, held in place by metal gauze, producing a englne consistent burn and removing jeetx possible cause of unreliability.

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The metal engije sheet was a fixed distance from the exhaust, which meant that there was a guaranteed length of fuse “tail” between the gauze and the lighting-point, and a minimum time delay between lighting the fuse and the fuel igniting — unless the user rammed a lit object inside the actual engine, it was pretty much impossible to accidentally light the fuel directly.

The jeetx also made of point of mentioning that the guanidine nitrate propellant was supplied to them by ICI who seem to have been a co-patentereliminating the worry of small-batch production producing variations in performance.

The Jetex engine

Overall, the Jetex system was easy to use, reliable, and comparatively safe, and its predictability meant that makers were confident about making model vehicles even cars! Jetex motors were also made under licence in France by Solidoand advertised in the French edition of Meccano Magazine during Summer The tiny aluminium motor burns pellets of solid fuel. So the fuel won’t go up all at once like a firecracker, it is especially treated to burn quite slowly.

The Jetex unit holds a single pellet of fuel, which takes about ten to twelve seconds to burn. Sounds like a short time, but this is a fast plane and will get high in the air with this length of power run.

Jetex: Toys & Hobbies | eBay

The Jetex motor comes packed with eengine instructions for use, so we won;t go into it here. But READ the instructions before you try a power flight. Solid Fuel Charge 4 is ignited by the Plastic Igniter Wick 2the coiled end of which is held against the face of the charge by a Gauze Disc 3 The gas is compressed in the main case 8 and forces its way out through the jet at supersonic speed, producing thrust.

The end cap 5 is held by spring 9and acts as a safety valve. If the jet were to clog, the gas escapes via the end cap.

Jetex – Wikipedia

enine Jetex Atom 35 [image info]. The smallest jet motor in the world, and the ideal power unit for small “chuck” gliders. Jetex 50C [image info].

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Duration 7 secs per pellet. Suitable for model aircraft with wing area not more than 40 square inches and an all-up weight of no more than 2 oz.

Super augmented jet motor. Duration 7 secs per pellet but one, two enbine three pellets may be used to give a maximum duration of seconds!

Jetex Scorpion [image info]. The ideal motor for contest models. The use of an augmenter tube basically a long tailpipe was supposed to increase thrust, but for model aircraft designs also had the advantage that one could place the engine forwards or centrally for balanced weightbut have the exhaust jet emerging near the back of the plane, rather than have it potentially playing along the body of the aircraft and setting the tail on fire.

The Jetex concept seem to have been patented in submitted in March by an A. Wilson, and ICI Ltd. More recently, a range eengine rocket thrusters for model aircraft with broadly similar characteristics — the “Rapier” range — has started being produced in the Czech Republic.

These are one-shot rockets with a cardboard casing. Toy Brands and Manufacturers Jetex rocket motors.

Subcategories This category has the following 3 subcategories, out of 3 total. J Jetex aircraft plans. Atom 35 rocket motor, Jetex Hobbies Eagle Book of Spacecraft Models Hobbies Gloster Javelin model aircraft, Jetex 50C Hobbies Gnat Glider, for Jetex, cover image crop KeilKraft Helicopter, Jetex BPO How Jetex Motors Work Hobbies Interceptor aircraft, Jetex BPO Javelin aeroplane, Jetex Hobbies Jet Car, Jetex Hobbies Jet Hydroplane, Jetex Hobbies Jetex 50 Motor KeilKraft Jetex 50c rocket motor MM Jetex advert, Hobbies MM Jetex F aircraft, advert USA Jetex Kits and Power Kits Hobbies Jetex Models Hobbies Jetex Power and Emgine Hobbies Jetex rocket motor, cross-section diagram Hobbies Jetex toys and model kits GaT Jetex Type 50C rocket motor Hobbies KeilKraft Jetex-powered range HH Racing Car, Jetex Hobbies Scorpion rocket jetdx, Jetex MM Sharky Jetex model aircraft, Hamleys MM Speed boat, Jetex BPO Speed Boat, Jetex Hobbies Supermarine Swift model aircraft, Jetex 50C Hobbies Swift aeroplane, Jetex Hobbies Wren aeroplane, Jetex Hobbies Wren model aeroplane, Jetex Atom 35 rocket motor Hobbies Personal tools Log in.

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