Evening Star Newspaper, March 12, 1937, Page 22

B—2 x PLANE VIBRATION STRESSES STUDIED Problem Features Joint Aviation Convention Which Closes Tonight. Vibrational stresses in airplane en- gines, propellers and structures as a source of structural failures and of fatigue to crews and passengers were | among many problems of design and | construction taken under considera- | tion at a joint convention of five na- | tional engineering and aeronautical organizations now in progress at the | Mayflower Hotel. The convention will close tonight with a dinner, at which the 1936 Manly | memorial medal, outstanding aviation | engineering award, will be presented | to Raymond W. Young, assistant en- gineer, Wright Aeronautical Corp., Paterson, N. J, for his work on air- cooled radial aircraft engines. Aroused to the full extent of the dangers resulting from unchecked vi- bration in aircraft structures, the more than 200 leading American air- | plane designers, engineers, manufac- | turers and transportation executives attending the convention gave over & complete session to the subject. In| addition to the failure of metals sub- Jected to severe and prolonged vibra- | tion, it was pointed out, \lbralmni creates internal frictional heat suffi- | cient to char wooden and micarta propellers. Vibration Measuring Described. Methods of measuring vibration in | flight were described by C. S. Draper | and G. P. Bentley of the Massachu-‘l setts Institute of Technology and H. | H. Willis, Sperry Gyroscope Co. The | vibration problem in airplane pro- | peller designing was discussed by F. ‘W. Caldwell, Hagmilton Standard Propeller Co. Prof. Caldwell was awarded the Collier trophy, most coveted of American aeronautical awards, for his work on propellers. The difference between octane num- THE EVENING STAR, WASHIN FRIDAY, MARCH 12, 1937 In the Hunt Country Activities Among the Horse-Lovers of Virginia and Maryland. BY NINA CARTER TABB. THRILLING paper chase was staged near Langley, Va., re- cently, with 40 riders partici- pating. paper chase there was a horse show at Paul Rhinehart's farm, with vari- ous jumping contests for young peo- Just prior to the ple. Mrs. John Landis and Mrs. Minerva Patch judged the classes and Mrs. Frank McSherry helped di- rect the day of sport. The paper chasers rode over a natural course, across country for about six miles, with brush, post and rail fences, a water jump and a ma- chinery or junk pile jump. The chase started at the Old Georgetown road and ended at Palisades Stables by the forest on the Potomac. The riders traversed country which was ridden over by George Washington and Lord | Fairfax when they hunted foxes to- gether, For those without experience in fox hunting a paper chase is great sport and a good way to learn. The riders’ eyes take the place of hounds. In short, they play hound on horseback Finishing first in the paper chase were Mr. Hale, Miss Roberta Ayers and Hobart Montee of Washington, | bers may mean little to the layman, but to the airplane operator a differ~ ence of one number may mean an in- crease of from 2 to 5 cents per gallon in the revenue earning power of gasoline, it was pointed out by D. P. Barnare, Standard Oil Co. of Indiana. Increased octane content is paving | the way to new aviation records and increased operating efficiency, it is held. Yesterday afternoon the convention delegates made an inspection trip through the Bureau of Standards lab- oratories. They visited the refriger- ated vacuum chamber, in which re- searches are made on aircraft engines under coinditions simulating actual | flight to high altitudes and on fuels | and lubricants. They also visited | laboratories and wind tunnels where | studies of vibration, fatigue failures | and aerodynamics are carried on. Shown Foreign Fixtures. Last night the delezates were shown | motion pictures of wind tunnels and aeronautical laboratories in Germany, | Italy and England. The films, shown | here for the first time, were prepared | for the Institute of the Aeronautical Bciences and were explained by Maj. Lester D. Gardner, former president of the Aeronautical Chamber of Com- imerce. Four sessions on practical aerody- namic problems, aircraft design and two on engines are being held today. Arthur Nutt, Wright Aeronautical Corp., will discuss European aviation engines at tonight's closing banquet. The Manly medal will be presented to Mr. Young by Dr. George W. Lewis, research director of the National Ad- visory Committee for Aeronautics and recent winenr of the Daniel Gug- genheim aeronautic medal. Organizations participating in the conference are the Washington Sec- tion, Society of Automotive Engineers; American Society of Mechanical En- gineers, the Aeronautical Chamber of Commerce of America, the Air Trans- port Association of America and the Institute of the Aeronautical Sciences. COLONIAL VILLAGE ASKS SAFER TRAFFIC IN AREA | { Citizens’ Association Board Urges | Provision for Signals in County Budget. By 1 Staff Correspondent ot The Star. COLONIAL VILLAGE, Va. March 12.—Safer traffic conditions were stressed at the meeting of the Board of Directors and Executive Committee | of the Colonial Village Citizens’ Asso- ciation last night. Chairman H. S. Allen of the Safety Committee reported | that County Manager Frank C. Hanra- | han already has been asked to provide | for traffic lights and better policing of the village in the budget to be pre- sented to the county board Monday. J. Miller, reported that he already | has the signatures of more than 300 | residents of the village on & petition to A. M. Simpson, acting postmaster, for & branch post office in Colonial Village. Plans are being made for a ping pong tournament and a soft ball league among residents of the village, it was reported by George T. Talbott, chair- man of the Athletic Committee. The Convenience of a— HAHN CHARGE ACCOUNT —is a practical service that makes your shopping easier. It is usable ot any of the four Hahn Stores. Regular 30-day or deferred payment Budget Accounts may be | arranged to suit your convenience. ASK ANY HAHN SALESMAN \ HAHN | qualified | place to Miss Nancy Landis of Alex- | andria, on her mount, Mincing Midge; | second place went to Miss Nancy Jean the latter riding the famous horse, | Rascob, but these three were dis- The judges awarded first Fasanko of College Park, Md. During the run Mrs. Frank McSherry was seen out in front many times on her thoroughbred, Fox, recently shipped here from the Hawalian Islands, but at the end of the run she was back in about fifth place. Paul E. Rhinehart won the best Jumping class of the morning’s show, riding Sidney Azoff, a standard bred, by Azoff, who is the sire of Peter Manning, champion trotter. Mr. Rhinehart was the oldest rider among the hundred show participants. He took the course without a touch and was heartily applauded by the spec- tators. Close second was Tony Mix ridden by “Red” Read of Richmond. The children’s open for all classes was won by Nancy Jean Fasanko, riding S1x DoLLARS ooy on your next trip to New York « .= YOu may enjoy’one of our finér single rooms. (The largest are only $8.) Double rooms are $7 to $10. Suites from $12. James O. Stack, General Mqr, " S1.Recis Fifth Avenue at 55th Street New York 1207 F A a black mare named Smarty; second, Raymond Schultz, riding Flip Flop; third, Gilbert Gray, riding Dolly B. R. FRED R. SANDERSON, M. F.; H. of Riding and Hunt Club Hounds, is recovering from an attack | of pneumonia, and his many friends were delighted to hear that he was| able to leave the hospital and go home | Sanderson has been | yesterday. Dr. greatly missed in the hunting field during his illness and it is hoped he will be in the saddle again soon. Mrs. | | L. T. Hundt made an efficient master | when she acted in Dr. Sanderson’s | | Fairfax place at the Tuesday meeting at Bradley Farms. After a good run, the fox was denned in the Owens’ woods. Among those out were Mr. and Mrs. Charles Carrico, Mrs. Edward Gookin, Miss Frances Cox, Miss Eliza- beth Jackson, Mrs. Roland Riddick, Dr. Joseph Horgan, Comdr. Justice Lee, George Walker, John P. Brown and Claude Owen. Hunting Log—Tomorrow's Meets. VIRGINIA. Warrenton, Middleburg and Orange County Hounds will not go out on ac- count of the point-to-point races, to be held in Warrenton. Cobbler Hunt, Edmund Horgan, M. F. H.; Ashby Glen, 1 pm. Lou- doun Hunt Club, J. R. H. Alexander, M. F. H. (For time and place of meet, call Leesburg 33-F-4.) The Hunt, Willlam McClellan, M. F. H.; Wicken’s Joy, 10 am. MARYLAND. Elkridge-Harford Hunt, Harvey Ladew, M. F. H.; Howard Price's, 11 A Complete, Safe, Storage Service For Estimates Call NO. 3343 1313 You St. N.W. If your hobby i\ is a Horse See Becker's Paddock Shop with All the New Spring Riding Togs Riding Boots $5.95 Sport Hats $3.00 Riding Scarfs $1.00 Riding Coats $10.95 Riding Breeches $3.00 Jodhpur Shoes $5.95 Hollyvogue Shirts $2.00 Custom Boots and Apparel Made to Measure. 1314 F Street N.W. flexible leather sole. style also in white calf. HAHN ° 7th & K ° GRO-NUPS Play Up PATENT for Easter Lively, shiny Black Patent—it’s youth’s very own accent—in our famous Gro-Nup styles that look so smart and fit so well because they're carefully and properly built for growing feet. A. Child's Center-buckle Strap. Also in white calf. 124 to 3, 3.00; sizes 8V2 to 12 B. Misses’ Center-strap Sandal with cut-outs. Also in white, blue or tan calfskin. 314 to 7, 4.00; sizes 1274 to 3 C. Jr. Women's Hi-front Bow Pumfi. The same 3212 14th Spring heel, Sizes In sizes Sizes 4 to 825 00 X Green Spring Valley Hounds, John K. Shaw, jr.; Frank A. Bonsal, jr., joint masters; St. John's Church, 2:30 pm. Riding and Hunt Club Hounds, Dr. Fred Sanderson, M. F. H.; Normandy Farm, 1:45 p.m. RECTOR’S AID ELECTS Bpecial Dispatch to The Star. LAYTONSVILLE, Md., March 12— Mrs. R. Lauck Benson of Sandy Spring was re-elected president of the Rec- tor's Aid of St. Bartholomew’s parish at a meeting held at the home ot Mrs. Thomas Hyde, 4th. Other officers elected were Mrs. Samuel Riggs, Lay- tonsville, vice pre-ident; Mrs. Thomas Ladson, Olney, treasurer; Mrs. Merhle Haines, Laytonsville, secretary. A dance will be held in Brookeville improvement of the rectory grounds. MISS EARHART “A” IN BLIND FLYING Test Over San Francisco Bay Preliminary to World Flight. BY the Associated Press OAKLAND, Calif, March 12.— Amelia Earhart possessed science’s greatest safeguard today against the ever-impending menace of fog and storm—an officlal “A” rating as a | blind fiyer. School April 10 to raise funds for the | 1207 F | girdling flight, the famous aviatrix was put through a 60-minute test | hop yesterday over San Francisco B: by Inspector A. R. Bedinger of the Department of Commerce. Bedinger sald the test, in which Miss Earhart flew by instruments alone in the covered cockpit of her $80,000 “flying laboratory,” was neceszary for her proper rating as a pilot before her take-off, set for Monday. “She can do it,” said the mspector, announcing the woman fiyer had made top-notch rating, both in effort and achievement. Miss Earhart, who has piloted planes across the Atlantic and the Pacific from Honolulu here, settled down to & program of relaxation today in prep- | aration for the first leg of her flight— over 2,400 miles of open sea to Hawa “If I don’t do it, somebody else will said Miss Earhart in dizcussing her As a last preparation for her world- | equatorial course to ploneer possible | new commercial routes and obtain 7th & K aviation data. “Commercial flights never can be YOURE IN THE NAVY Now WITH DYNAMICS, 5.50 & 5.95 Al NAVY POUCHES —that add o touch of chic to your smart Spring outfit, At left, o new Navy Gabardine and top-handle bag; at right, the clever double-handle ~ * __.model of Navy calf. Just two of an exciting as- . sortment of costume-complementing A. Navy Calf Open Toe Sanda! Pump. Also in pottery tan calf or shiny black patent leatfiepS=ct st s 5.50 Navy Gabardine with Patent. 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