The Ogden Standard-Examiner from Ogden, Utah • 7

THE OGDEN (UTAH) STANDARD-EXAMINER 7A WEDNESDAY EVENING MAY 19 1954 1:1 Good by to Picture Windows? Sonic May Damage Property I LOS ANGELES AP) There duction which can fly faster than Sonic explosions were so se-might come a day when folks will sound in level flight booms no vere that during a flight at Palm-think twice before building a longer come only with dives The dale Calif Airport last fall 33 house with a nice big expensive cone of pressure waves fanning windows in an airport building P1 Andf thewner of a greenhouse out behind the plane enlarges were broken and a 4x4 timber he gets to thinking About it until it eventually hits the ground was cracked too much might well -reach a -r-much' like the waves from a At present it is highly unlike-point where afraid to go in- boat eventually hit the shore side" cur inadvertently And strict spokesman at Edward Air niles bar faster than sound fly Force Base here said: ing at less than 10000 feet near No Official Regulation populated areas 'is no official regula- Vet occasionally the atmosphere may twist a around and There is no need for' alarm at present But if scientists keep pushing the speed of flight higher and higher such things could come to pass FIRST SECURITY BANK BUtlDINO aUPbecause of a man-made boom! No more Picture window of a sonic boom While sonic headache becoming increasingly I i Pur Summer Weight sum of Here's How Pilots Make a 'Sonic Boom' Here's how an airplane (upper left corner) flying at sonic speeds can cause man-made thunder-clap one of the phenomena of our faster-than-sound air age plane flies through and beyond the sonic barrier it produces I several shock waves in the air The first one is the bow wave ahead of the plane others spring from the wing and tail Upon reaching supersonic speeid in a dive from high altitude (right photo) a trailing wave is formed and the shock waves are directed toward the ground At the lower I right-hand corner waves hit: the target and each big shock wave causes a boom Often two sometimes three are heard I O'1" 1 i A 5 the veritable daps booms caused while the aircraft of doom called sonic explosions is in a dive can be controlled -The cannon-like booms are quite accurately very little is known about the behavior of sonic barrier So far few have re- suited in property damage They shock waves caused by exceed- have however been severe ing (the speed of sound in level enough to cause the Air Force to order its pilots to refrain from Discovery of thrf sonic explo-breaking through the sound bar- ow rier near big cities sions came by chance In 1950 It' Tough on Public Col Rkhard the Air It -was hard enough on police test Wriht and newspaper switchboards Field Ohio was putting the when the sonic booms occurred F86A a Sabre Jet model through only when some carefree pilot its paces with dives from eight put his jet mto a rocketing dive which exceeded the Such playful maneuvers caused hundreds of calls to public agen- speed of sound cies from alarmed citizens The After the first dive the radar have been mistaken for operator following his flight on everything from dynamite blasts the ground asked him to hold in the next block to earthquakes 0ff There had been an explosion But now there are planes which near by he said can exceed the speed of sound The colonel waited for clear in level flight ance which came when no one Apparently the booms will be-' could locate any explosion and come more severe as planes fly then repeated his dive Again an faster One leading aircraft en- explosion was reported gineer has predicted the hum- Asked Repeat Dives cane-like pressures in sonic ex- plosions may eventually be Somebody put two and two to-utilized as a weapon for bomb- Sether and the next day Col ing missions without bombs Johnson was asked to make four Science still put its dives in quick succession along finger on all the factors contributing to sonic explosions The pressure waves from supersonic airplanes have been compared to the waves a boat creates in the the same path On each pass a distinct boom was heard The light then dawned A subsequent search of newspaper files in the Dayton area showed i-m TSSSS? need no vacation jp com awn tfeev dVlVaVaV'AAIU Path of Shock Waves Curves Upward water When these waves reach had reported atrange ex- This illustration shows how the path of the shock waves curves upward Gray area is that of greatest sound intensity However under teniperature inversions where higher temperatures are found at higher altitudes the shock-wave pattern would turn downward Raymond Rice chief engineer for North American Aviation Co says: waves of 50 pounds per square foot could be produced from low-flying supersonic aircraft This presure corresponds to a hurricane of 140 miles an hour velocity Light structures might prove to be extremely vulnerable to this force Radar detection of low-flying supersonic aircraft is difficult so there would be no warning The effects of panic from such a sound attack are enormous plosions throughout the proceeding two months at times when F86As were diving! 1 A' I Higher Coffee Prices Feared the ground and human ears they sound like thunderclaps Caused By Diving I Up to now most sonic explosions have been caused by diving airplanes As they zoom downward and accelerate to speeds above that of sound a pattern of 'SEDALIA Colo (AP) The ing ranch included in the trans- direction from the hilltop on shock waves forms and moves ornate Charlford Castle here has action as a ranching op- which it is built toward the earth with the plane been sold by Charles A Johnson The Ruddocks have mining in- samdirection1 aDd in to Mr and Mrs Merritt Rud- She jsaid she wilt introduce terests in California and Utah jf certain atmospheric condi-dock of Moab Utah for an un- Santa Gertrudas cattle to Colo- They have two children AVs tions exist the waves1 continue disclosed pnee rado and 5 to the ground after the plane Mrs Ruddock said she and her The castle built of native stone Charles A TnVmcnn Tr pulls out of the It is pos- husband plan to make their home in 1924-26 has been the scene Jonnson Jr son of sible to get doul3le eyen triple in the castle and to conduct it of social gatherings through the ine owner sai aale contract booms with shock waves ema-the 2400 acres of the Johnson years (Its central feature is a had been signed and the Rud- nating from the nose canopy and property and 1600 of an adjoin- huge hall with a view in each docks are to take possession tail of the aircraft June 1 But with the arrival of the Johnson Sr lives California F100 a jet fighter now in pro- 1 I -m MONTEREY Calif Pa cific Coast coffee men were warned yesterday that prices may soar even higher than current costs if the continues at its present The warning was issued by Horacio Cintra-Leite spokesman for Latin 11 coffee growing countries at the 23rd meeting of the Pacific' Coast Cof fee Assn i A K' Aefe Odd? Ado (DM I'teaOo ferofticp Afl A IvO if WM WSS IMB1 Straw Hat Opening Tomorrow May 20 ff: vs if I I 1 SV DOBBS MILAN In their smart caviar shade $10 1 c' IS? fff 's Yffi A ECUADORIAN SUPERNATURAL PANAMA in cocoa brown-leghorn weave 650 MIR AGON It's COOLER in the Shade: of Our The magic' blend of 55 DACRON with 45 Worsted The miracle fiber Dacron plus i ine worsted blended to give you a summer suit you've always wear it day after even during hot humid weather it will keep you cool and maintain its goocj-Iooking appearance with very little care Gives you a lightness that means comfort and creases stay in even in the rain Distinctive new shades of cocoa navy and charcoal add an extra-smart dressy look to our newest Straws I They'll spark eyeiy one of your Summer Suits with fashion Although these hats weigh very little they put enough protection between you and the sun to lower the temperature many degrees Come in and try on a couple 5 lli MY I £4 MY.