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Show rotor blades turning and prevent total loss of lift. He explained that there is a critical altitude range in which motor failure might be dangerous while hovering . This would be between about 15 ft. and 300 ft. above ground. Below 15 ft. it could drop without danger, and above 300 ft .the pilot could nose down, gain forward speed and land safely. Between these limits the machine would be rather help less in case of power failure, but the possibility of power failure in the critical range is very slight. However, he customarily uses forward for-ward speed on take offs and landings land-ings as a safety precaution. Helicopters are rather expensive Child estimated the cost of this Hiller 360 at more than $20,000, and the rental rate for it at $65 per hour. Stanley Hiller, Jr., head of the manufacturing company, recently stated that his company has an increasing backlog of orders and that a sales and service organization organiz-ation has ben formed. Manufacturing Manufactur-ing is done at Palo Alto, Calif. The company notes that its products are useful in such -fields as fishing, petroleum, farming, forestry, mail service, patrols, air ambulance and rescue work, and aerial photography. photogra-phy. Since the war, helicopter mail service has been inagurated between be-tween airports and down town post offices of several big cities. In Los Angeles, the Lost Angeles Airways in cooperation with the for the first time Sunday, with Lyman Ly-man Finlinson, and Bill Tolman in the sedan. They made a short flight over Oak City. FARMERS TO GARRISON . . . Last Sunday the Utah Flying Far mers sponsored a fliers' picnic at Garrison. About 15 private planes made the trip, with some 35 people. peo-ple. Mr. and Mrs. Earl Yersin acted act-ed as hosts. State aeronautical director di-rector Del Fuhriman, and FF pres. Merlyn Jackson attended. The people of Garrison provided their visitors with transportation from the Garrison air field to Lehman Leh-man Caves National Monument, where the picnic was held. The par ty then made the trip through the caves, which are one o fthe outstanding out-standing points of interest of this area. Guests fliers came from Ogden, Tremonton, Logan and Salt Lake. Fred and Betty Baker, Leon and Roberta Theobald ,and Leo and Lola Lo-la Burraston flew out from Delta. The flying farmers obtained spec ial clearance to the visitors might fly across the danger area between here and the Nevada line, shown on the aeronautical charts. This danger area is for military use, extending from Wendover south nearly to Milford. The south end is little used by the army, however. how-ever. . TRIB'S MIXMASTER . . . The overgrown mixmaster, or more accurately, the helicopter ow ned by the Salt Lake Tribune and Telegram, arrived as scheduled on Friday mornnig. It was displayed near the post office during most of the day, where it attracted a great deal of attention. At noon it made some flights over town, the first with Bob Arentz, of the tribune-TeIegram staff, and the second with Frank . Beckwith, Sr., as passenger. Mr. Beckwith never misses a chance to go flying in any machine capable of taking to the air. In the evening, pilot Wallace Child, of Kemp & Kelsey Air Service, Serv-ice, demonstrated the 'copter before be-fore several hundred spectators at the old race track grounds. The performance of the 'copter proved as interesting as its odd, rather outlandish appearance. Since its overhead rotating blades provide life, it does not require forward speed in order to fly, as does a plane. It can take off vertically, and hover motionless above the ground, and it can move forward, , Wingovers "ALL THE NEWS THAT'S FIT TO PRINT FROM THE DELTA AIRPORT" DICK MORRISON THE SUMMER SKY ... This is a season of beautiful skies. This morning, Monday great black rain clouds are causing a tur moil in the air, with thunder and lightning. Nearly every day towering tow-ering piles of cumulus clouds build up, massive billowing, glistening glis-tening in the sunlight. Clouds color col-or the sunrise in soft shades, and the sunsets are ablaze. There is in spiration in the summer sky. TAKE OFFS AND LANDINGS . . . Joe and Alta Tippets dropped in for a little visit Friday. With their three young sons, they are spending their vacation visiting friends and relatives in Delta, Ogden Og-den and Heber City. Joe was a CAA communicator here in 1938. He is now with the CAA engineering engineer-ing division in Washington, D. C. Communicators Ward, Euffing -ton and Rose flew the sedan to Wendover July 13. Last Saturday, Buffington and Theobald flew to Salt Lake and back. Stanley and Ruth Burraston, with their four youngsters, dropped in Saturday fo ra visit with Leo and Lola. Stan and the children enjoyed en-joyed a short flight over Delta. Stan is working on the highway job north of Scipio. The Delta Fire Dept., with Frank Bishop, Bob Wallace and Howard Webb, ran the truck out and wet down the field so the helicopter demonstration Friday would be somewhat dustproof. Any inference that the method used was that implied in the Chronicle's classic misprint concerning fire department de-partment methods is wholly unwarranted. un-warranted. Layton Bishop took his second plane ride a week ago, and the result was not too good. The air was rough and Layton lost his breakfast. FLEDGLING . . . Clark Lovell was up in the air backward or sidewise, ascending or descending. Following the first demonstration demonstrat-ion flights, Howard Webb was trea ted to a short flight in it, as guest of his friend Don MacMahon, driver driv-er of the Nation Guard truck of the 'copter caravan. Your faithful correspondent also was treated to a ride, thanks to an introduction by John Swalberg. How, after all, could a guy write about a heicop-ter heicop-ter without ridnig in one ? From the passenger's viewpoint, the copter feels more substantial than it looks. The take off and landing were nearly vertical, gentle gen-tle and slow. The machine seemed to do 60 or 80 mph in the air. Following a short flight north of the field, we made as easy descent at zero air speed. Pilot Child said he had never flown a 'copter until the Tribune-Telegram Tribune-Telegram brought this one to Salt Lake a year ago. He said it is not hard to handle, though different from a plane. Asked what would happen if the motor should stop in flight, he said that if the 'copter had sufficient forward speed, or enough altitude to gain forward speed it could glide to a landing. ' The forward- speed would keep the Pacific Mutual Life Insurance Co., plan to build a helicopter terminal at Sixth and Grand Ave. From this terminal giant helicopters, carrying carry-ing 12 to 24 people, will provide fast transportation service to the suburbs. Holywood, Pasadena, and the beaches would have five to twelve minute service , while the schedule to San Bernardino is set at 36 minutes. Successful helicopters are a relatively re-latively new development. While Leonardo da Vinci was probably first to experiment with a vertical lift machine, it was not until 1910 that Igor Sikorsky demonstrated one. Even then ,the idea lay nearly near-ly dormant until 1941 when Sikorsky Sikor-sky again undertook helicopter development, de-velopment, and built a 'machine which hovered nearly motionless in the air for an hour and a half. Since then development has been rapid. PHOTO FLIGHT . . . Made a delightful Sunday morning morn-ing flight in the sedan with Bill Starley, Frank Beckwith Sr. and Merritt Floyd. We took off at 0700 and flew by compass to Richfield, Rich-field, thence northerly along the mountains for pictures of the geological geo-logical fault near Maple Grove; then over Fayette and along the river course. This gave us a fine aerial view of the dam and the storage lake, as well as the new alignment of highway 91. From a point above the mountains moun-tains east of Fillmore we could see both Richfield and Fillmore, these cities being only some 20 miles apart by airline. Once up to 10,500 ft. to cross the mountains pilot Floyd kept the ship within 100 ft of that altitude until we started our long glide to the Delta airport from Fool Creek. Mr. Beckwith is sending pictures to an authority for a report on the. geological significance of the Maple Grove fault Bill said he enjoyed the flight over the mountains where he used us-ed to ride horseback in bygone days. Merritt observed that the Sevier River is as winding in Sevier Valley Val-ley as it is near Delta He likes to speculate on how long it would be if it were pulled out straight He figures it would be long enough to reach the ocean, but he hasn't figured any way to straighten it When learning to fly he used to practice turns by following the cur ves in the river near the -airport |