Air Wonder Stories, July 1929 — page 92: what you’re looking at

Machine-transcribed from the original scan — historical spelling and the odd misread are preserved.

Huge Planes Being Built in Europe Hoo pinnez are under construction in Burope at present, says Anen president of the American Acronautical Cor- poration. Mr, Bosal's company will begin the construction of American editions of the Sovola Marchett] seaplanes and amphiblana. The Handley-Page Company, said Mr. Bosal, in completing an all-metal plane for fifty-five presengers; which will be used by the Im- perla] Airways on the London-Paris: route. Dr. Dornler, In Germany, expects to conduct tests soon of a huge twelve-engined fiying boat, each engine of which ia expected to develop 500 horsepower, or 6000 horsepower in all. The largest Jund plane In the world ig the 100-passenger Junicera In which the passengers will be orrled in the wings. The motors sre.also completely enclosed in the wink sections, which at the roots has a thieltnesa of mnilne feet, The propellers, tt in understood, will be carried on long shafts, well ahead of the leading 6dge of the wing and they will be adjustable while in filght for speod at high altitudes. The motors will be equipped with superchargers, Oxy- gen sauipment will keep tho cabins at nor- mal otmoapherle pressure also, it {so undar- stood. Great ssorecy, however, shrouds the actual equipment to be used, France, said Mr. Bossi, has s new fighting plane called “the Jockey,’ which is re- ported to havo shown a speed of 200 miles per hour, New Hybrid Airplane Ordered A NUW type alrplane, a combination of dirigihle and heavier-than-sir cratt, is being bullt In Germany for an English ova- tomer, sys Popular Science Monthly. ‘The ornft will hnve a 420,000 cublo foot gas bag and be 140 feet long, thereby making It a full fledged atratip; but it wHl also have a set of airplane winga which will extend from the body to help support {t In fight and help in the landing. It ja intended for passenger service and will carry 6 paysen- gers, and a two-man crew besides baggage. Two motors of thirty-five horsepower each witl glye It a cruising speed of sixty milos per hour. Diesel Engines for Planes Tss PACKARD MOTOR COMPANY, says Scientific American, has tested successfully in filerht a Diesel engine, seven cylinder air- cooled, developing over 400 horsepower and welgbing only # trifle over threes pounds per horsepower. By the use of this engine the ignition and carburetlon systems can be eliminated, and hedvy fuels can be sed that are non-~inflammablo In character. The yalue of this, considering the terror of the burning plana, is vary evident. The ua of the Dieses! engine Is possible, gays the article, only after. many changes, The ordinary Diesel engine 1a low speed, and coupled with the low mean effectlye press- ure developed, Is unsuitable for alrplane sarvioa, A high spead engine therefore hag been developed, No apark or hot bulb Is needed for combustion of the fual for ths high pressure and temperature alone will do this, ‘That tho fire hezard Is much lowsr with fhe Diesel is explained by the fact thut the fire polnt of gunsoline ia below gzaro Wabrenhait, ond thut of the Diesel fuel is 175 Fahrenheit. Tn the Packard testa lasting over a year, in the innumersble cases where the fuel ines leaked or were broken, not a einglo fire occurred, AVIATI ON NEWS OF THE MONTH —_— ~<—s CONSTRUCTION Helicopter Ready for Trial A HELICOPTER (bird-lke airplane) de- signed by a Braullinn workman has been compleled with the ald of his government and is now ready for official trialx The Problem of being able to rine yertioally from the ground hud ocsupled the inventor for some time and he had already bulit a ma- chine motored by four horsepower which Tose 30 centimeters (bout 12 inches) when tried out The new machinery, however, is much more powerful. Four Motor Planes for Sleepers Says Lindbergh HH} large passenger air-linera of tho future will probably have four motors in- stead of three to reduce the nolse and vibra- tlon ond increase the percentage of safety, sald Col. Lindbergh, who is aoting as teoh- nioal expert to the Transcontinantal Alr Trensport. This company will operate the coast-to-coast alr-rail line which, Lindbergh atated, would be put Into operation this summer, ‘Safety in fight’ was one of the reasons given for the advisnbHity of the four motor plone, on whioh it ia expsoted sleeping accommodations for parsengera would be made, The slesping service Is not expected until sometime in the future, how- ever, When planes with Jaryer fuselnges are mede. In speaking of the plans for the opening of the Transcontinental Air Trans- port seryloe thia summer, he stressed the polnt thut e2bsolute safety would be. the primary consideration, and no planes would be flown until everything waa in perfeot readinéss, He visioned then a service to be as safe as travelling by rail. 200-Mile-an-Hour Army Plane Expected Hi Army Air Corps-is now working on an attack plane which, with {nll war-timo Jond, jw expected to show .a speed of 200 milea per hour. This would glve tho plane & decided advantage over the general run of pursuit planes which develop 166 miles per hour at best, Manufacturers are now working on thesa planes. One, without tho war-time loud, ls reported to have attalned a speed of 218. miles per hour, but the addi- {ion of equipment will probably reduce it to about 195 miles per hour, «ocording to Major-General. James BH. Techet, Oblet of the Army Air Corps. The improvements have been along the lina, chiefly, of reduced hesd resistence and Increased power, The use of ao new highly efiiclent cooling: fiula has also helped In the Increaned spead ob- tained. Helicogyre Machine Invented ‘HH description of his inyention of the “Helloogyre’ was made by V. Isacco be~ fore the Royal Aeronautical Society of England, Slgnor Isacco has the baoking of the Air Ministry and one of his machines {a now being built, The "Hellcogyre” ts In reolltty a revolving wing alrplane. Hoch of the four wings has four Bristol “Cherub motora on the wiig tlp, and another motor on the nose of the fiselnge, The wings In thla cose are propelled by the motors on tha tins. Hach englne has its own gasoline and oll tanks so ag to mela It independent of the others. Ailerons to act as elevators extend along the entire trailing edge of each wing. The inventor believes that f& any wing fafled the others would keep the plane moving and in cnse al] the wing engines fatled the nose engine would propel the machine. Signor Isnoqo believea that in the future Jet propulsion wll] replace the present engines. According to the Inventor, by hla machine, 80 lbs. oan be Ufted by one horse- power developed, 90 a a s = Giant Airships Planned OINCIDENT with the plans for the build Ing of n huge hangar for lighter-than- air raft at Alcron, Ohlo, for the United States Navy, comes the statement that the large elreraft. of the future will be the lighter-than-air type. For with the sclonce of this type of oraft belng underatood there is virtually no limit to the alze possible. And also that the effective load poaslble in- creasea proportionately with the alte. With the heasvier-thon-alr mechines, however, in- creases in ulze bring increases in welght which reduce the carrying efficlency. ‘The Tew hangar, which will be on rollerz to compensate for temperature chnangea will haye a ground area of 31,600,008 square feet, or equal to that of fourteen regulation foot- ball fields, In {tf will ba constructed ships for the navy thnt will exoéed gretitly those of the past. The first oraft will have o volume of 6,500,000 onbic foet and a oruls- ing range of nearly 10,000_miles, as com- pared to a volume of 2,470,000 cubic feet and a range of 3,800 miles’ for the Los Angeles, With the bullding of such shipa the propheta foresee—lhat over short dis- tnnoes (up to 1,000 miles) the heavier-thano~ alr planes will be used, but on long tripa the giant Ughter-thnn-alr_ machines will operate, ontrving small heavier-than-air planes which will discharge and take on passengers. World Air Cruisers Near . 5 et Completion in Britain Fee: nearly two years of éxparimenting lsboratory leat, ete, two Nghter-than> mir cruisers (ditigibles), built expressly for the Britlsh Government for Jong range trans- portation within the British Bmpire, are nearing completion. Work is sald to be far enough advanced to make shed testa within mh month, ond final tests in three to four months. These monsters of the alr which are costing about $1,260,000 ench are the first of their kind bullt expressly for world- wide service. The baokers of the project belleve that thesé alrahipa will be tha thing of the future for long-distanoo tranxport. They ate sald to embody the very latest ‘In- airship design, and are built to withntend the ohanuging temperature and stmospherio conditions they will meet in thelr terres- trial journeyings. Steam-Driven Propeller-Less ‘ id 7 Airship Promised A NEW, revolutionary lighter-than-nir-alr- ship is promised to New York during the summer by the Bryan Steam Corporation of Peru, Ind. The ship will be tueled’ with ol! aud driven by n ateam turbine. Ie will haye no propellers but a ratary blower at the noso, which by blowing the air alde- ways and bapkward creates a vacuum In front of the chip, which pullaitt along, Tha turbine drives the blower, and the ehoust ateam from the turbine before belng ocan- densed wil heat the cabin. With a driving power of {00 horsepower and a cruising epoed of nearly 100 miles per hour ths craft will have only one-tenth ths diaplacament of the Loe Angeles nnd will yet be able to carry 88 many pasdengera. It has no in- terlor bracing and thus Is able to reduco ita welght 700 pounds and increase [ts paying toad correspondingly. Not the least aniong the sonsutional features js the promise that the craft will anchor on top of large bulld- tings in the olty and dischurge ite paseengera by means of an elevator running along the anchor line. comnliclooolks.cotn