Show JP ip planes have long history some studies over 2000 years old A f s t A J 4 C A model of a proposed horseless carriage invented by isaac newton the fir fire was supposed to generate steam which blowing out the rear pipe would drive the vehicle forward unlike present day JP planes this device work jet propulsion is a brand new way of driving airplanes through the skies without propellers but like so many other modern inventions jet propulsion has behind it a long history of research in fact the story of jet propulsion in its more primitive forms form goes back over two thousand years probably Y the first known interest in jet propulsion came around the first century BC when hero the alexandrian philosopher built the this was a hollow sphere supported by two tubes one of which was hollow and led from a closed vessel over a fire on opposite sides of the sphere were two right angle pipes stearn steam generated in the closed vessel went through the hollow pipe and into the sphere which was caused to revolve by the jet effect of the steam escaping through the nozzles of the small an angle ae pi pipes oe the eminent eglis english scientist sir isaac newton best known for his laws of gravitation built a model car in in 1080 which made use of jet propulsion for motive power it was a tour four wheeled carriar carriage with a spherical boiler which had ha a nozzle pointing to the rear the reaction of of the jet of steam was supposed to d drive anve the carriage forward but it work other scientists a and n d inventors worked on jet propulsion schemes and several important contributions to the field were made in the early notably by marconnet lorin and dr gustav eichelberg of switzerland interest in jet propulsion was intensified fied after 1930 when frank whittle of england and S campini of italy began their development of jet power plants for aircraft whittle a group captain in the RAP R AF had developed his jet engine which had a blower compressor mounted on the forward end and a gas turbine at the aft end of the same shaft the compressor is powered by part ot of the combustion chamber energy in 1939 construction was started in a jet propelled airplane in england and in may 1941 the gloster built airplane in lane had its first successful flight in july 1941 the results of the british research were made available to the united states army air forces general electric company was given an order to build the engines and bell aircraft corporation builder of the cannon carrying P 39 Aira cobra fighter was given an order to design and build an airplane to be powered with two engines the first successful flight of a combat plane using the october jet et propulsion principle was made on october 1 1942 with robert M controls stanley bells chief test pilot at the performance figures f agures of bells new let jet fighter are necessarily shrouded in in military secrecy but engineers believe that the field of jet propulsion will tute open 0 en up new vistas of speed and altitude altai which will be of greatest greater A importance E to the future of aviation both oth military and commercial fundamentally the driving power of the jet propulsion airplane is gen crated by taking the air in the forward part of the engine mixing it with fuel and igniting the khz fuel ue the burning of the th e gaseous mixtures creates a t es a hot blast of air which darivin driving g backward with terrific forces pushes the plane ahead through through the air at great speed and at a high big altitudes |