Evening Star Newspaper, May 15, 1929, Page 28

~=—~==—~—~—~—~—~—~~] |FUEL (1L AIRPLANE ~ Summer Comes . . . 28’ THE EVENING STAR, WASHINGTON, D.» C.,> WEDNESDAY, MAY 15 1929, to Jelleff’s with fashion-with- value...a combination that has made Jellefi's the store that women like to shop in! “Only one Jellefi’s”...h o w often do we hear it! Summer— ready now! Silk and Georgette Coats L P Y i L L R L T WP for the Magic Hours of Fashion The magic hours indeed...add a daytime frock and a silk coat be- comes a sunshine fashion...wear a dinner or theatre frock and a lovely evening ensemble results! So the versatile silk coat enters the wardrobe. . .black, of course...also blue and suntan...straightline or flared...lined or unlined...of Frost Crepe Dracina Satin Faille Moire Georgettes Charming silk coat sketched is unlined and $25 Other unlined coats, £16.50 to $29.50 Lined coats, $39.50 to $98.50 Women's Coat Shop—Third Floor Transparent Velvet Coats from Midday to Midnight Paris knows the feminine soul! All designers acclaim it and at once it hecomes a favored mode ...simple in design and line for daytime. ..intricate in design, vet disarmingly simple of line for evening! simple, straight with tuxedo and bow collars. . .chiffon lined at $29.50 to $59.50. Chanel model sketched is black with white silk lining...$59.50. For daytime... Women’s Coat Shop—Third Floor " Basket Weave Coats = From Sun-up to Sun-down The sun sets the mode by day ...basket cloth and basket flannel bows its head to this healthy fashion and take to colors to make the sun-tanned skin more charming...white, sky blue,- pink, mais, beige, orchid! With tailored, notched collars...tuxedo revers...or scarf collars...silk crepe lined or unlined! - Stunning indeed with sleeveless frocks! Unlined $16.50 to $19.50 Lined $25 to $39.50 The lovely unlined basket weave coat sketched.is $16.50 Women’s Coat Shop—Third Floor 5 $5 Leather Handbags M, S, SN S SN SIS N N A, 5N Special in Summer Shades and Shapes Extra compartment bags... back strap pouches with enamel lift locks...envelope and top-handle bags with pass- port pocket...leathers include smooth calf...Hudson, Jutland; boroso grain goat . . . the colors, beige, tan, green, red, brown, grey, black! Take one on your vacation travels! A grand time to buy and save. . Handbag Shop—Street Floor New—Exotique “One’s All” L LTINS N TN NN SN SN TN, 2 N \ < the Vanity Fair Garment * The newest feminine conceit by Vanity Fair in underwear for Summer...combining three garments in one...cobwebby sheer and almost as light as air + « . audaciously accenting youth's lithesome curves... Pink or Black—$5 Grey Shops—Second Floor $3.95 Slips for Thin Frocks for May $3 Saleat - The dusky suntan laces that have become so smart with the suntan vogue...on fine crepe de chine slips with deep shadow hems or top and bottom both lace trimmed! Flesh, suntan, eggshell, white, slips...the very things to go with Sum- mer frocks. Sizes 34 to 44. Grey Shops—Second Floor JELLEFF'S ¢ F STREET ¢ NOTOR XHBITED New Engine Demonstrates Worth Before Delegates at Conference. BY JOSEPH S. EDGERTON, Stafl Correspondent of The Star. LANGLEY FIELD, Hampton, Va., May 15.—While the Nation's leading aeronautical engineers were asking the national advisory committee for aero- nautics for aid in solving the outstand- ing aeronautical problems relating to greater safety and economy in com- mercial ajrplane operation, pioneers in | two new fields of aviation activity were giving practical demonstrations of startling new types of planes and motors designed as an answer to some of these problems before delegates to the fourth annual aircraft engineering research conference, held here yesterday. Following the closing session of the conference, at which many problems | were presented for laboratory Tesearch | work by the committee at its Langley Memorial Laboratories during the com- ing 12 months, the delegates witnessed flight demonstrations of the new Wool- son-Packard fuel oil compression igni- tion aviation motor, and of the Pitcairn- Cierva_autogiro or “windmill” plane, both of which are ranked as outstand- | ing aviation innovations of the past| year. The new O There motor and the autogiro plane came to Langley Field by air, the motor from Detroit as the motive power of & Stinson-Detroiter cabin monoplane and the autogiro from Phila- delphia_ by way of Washington. The trip represented the first cross-country ights for both the new engineering chievements. Secrecy surrounds the new Diesel en- gine. which was designed by Capt. L. M. Woolson for the Packard Motor Car Co., and which was given its first pub- lic demonstration here yesterday. Capt Woolson refused to disclose details of the motor, but admitted thgre are still a number of engineering feMures which | are giving trouble and which must be | worked out before the engine is ready | for_general distribution. The engine is a nine-cylinder radial air-cooled type. Because of the com- pression ignition feature no spark plugs, magnetos or electrical wiring are pres- ent as a potential source of failure. Cheap fuel oil is burned, establishing another highly important safety factor, as the oil is non-inflammable under ordinary conditions. It was Teported that the fuel cost for the flight from Detroit to Langley Field was only $5. Gasoline for the ordinary airplane motor developing the same horsepower for: this flight would cost approximately $30, it was pointed out. Flat Spin Is Great Problem. In flight the Diesel engine sounds and behaves apparently much the same as the conventional type of radial aviation engine. Aviation experts believe that if it can be developed to the degree of re- liability characteristic of the marine type of Diesel engine much will have the rotor and work it up to the speed necessary for taking off. ‘The aeronautical engineers present at yesterday's meeling were unanimous in agreeing that prevention of the flat or abnormal spinning of an alrplane, which places it bevond the control of the pilot and resu n a large propor- tion of the se: accidents of today, constitutes the most important aviation problem. ‘The national advisory committee for aeronautics, it was announced, already is working on this problem, and is pre- paring to construct a vertical wind tun- nel in which the causes and effects of spins may be studied with a view to their elimination. A small-scale tun- nel of this type was demonstrated to the visitors yesterday. The closing session of the conference yesterday afternoon was devoted to the presentation of aviation problems for investigation by the committee during the next 12 months. Edward P. War- ner, former Assistant Secretary of the Navy for Aeronautics and now professor of aeronautics at the Massachusetts In- stitute of Technology, who was ap- pointed a member of the committee during the past year, opened the discus- sion. He stated that in his opinion the greatest aviation problem of 1928 was to increase the speed and efficiency of the airplane without increasing _the horsepower of the motor or the cost of operation. This problem was effectively solved. he said. by the creation of the N. A. C. A. cowling for radial air-cooled engines. He expressed the hope that the com- mittee’s work on the development of strong, light and efficient landing gears would be carried to a successful conclu- sion, especially as regards the light type bren done to solve the airplane power | of plane for private use. plant problem. The autogiro resembles the helicopter, and is able to rise and descend steeply and to land in a small'space. However, a large space is required for taking off, as the machine must be taxied around the ground for some distance to’ start i Is Mutual Advantage —in your being a patron of ours. We can serve you in so many ways— and a little better. And we shall be benefited in being “Your Bank.” fiLet’s get together. “The Bank With a Smile” Washington Savings Bank Tenth and Grant Place Thos. E. Jarrell, Pres. J. D. Leonard, Vice Pres. & Treas. 0 A, NS S———— g s S S g S — ina Misses’ . Silk Ensembles score of Swininer Styles $25 - - Printed dresses with long silk coats . . . sleeveless dresses with adorable little ‘jackets the way . . that . ensembles tailored in inimitable dressmaker * . beautiful - pastels are simply bewitching on suntanned moderns, ,eggshell, | capt pilot 1cine, mais, green, white, blue, tan...yes, and brown, navy and black, too! $ JEELLEFF'S 5. Misses’ Frock Shop—Third Floor ¢ F.STREET e, T SN TSN SN SN, I I S £ N Ban a SH WRINKLES nd recapture (a” youthful appearance Aging Skin Revitalized by Amor Skin Skin a marvel and crow's-fe revitalizing h sweeping_two tions of Amor glands of vita AMOR SKIN No. Miss Ethel Skin is here al out charge. JELLEFFS And You Stripe St styled by Pa their silk is stocking by no run that can pass the May Shade Conn. Ave. Courts. JELLEFFY Women who desire to look young, fiad in Amor ous new ally. This German scientific preparation erases wrinkles et and firms sagging skin, by first ormone-starved tissue cells. "It is continents. Thousands of women’ in both Europe and America are banithing the pitiless stamp of age by simple nightly applica- Skin . . . and recapturing a youth- ful appearance! s Amor Skin embodies hormones from the skin 1 young turtles. $i6.30 AMOR SKIN Fo. 1 100 Anderson, chief consultant of Amor 1 this week to confer with you with- ¢ F STREET I S N SN S SN SN SN SN I SN N . CAN. PASS ,THE, GOLD STRIPE . Fo”om tAe GILDSTRIPE L Fo”ow t]u Moc]e Bscmsa Gotham Gold ockings are ris-inspired fashion experts. ¥ Because 100% pure. ¢ Because they offer an un- surpassed choice of heels. Y Because there is a correct Gold Stripe Motor Streamlining Discussed. Among the problems presented by other speakers were the streamlining of outboard motors, when used in tan- dems, with one engine behind the other, one driving a tractor and the other a pusher propeller; the further refinement of pusher propellers; the development of cowling for in-line air-cooled motors; the determination of drag of minor fit- tings, especially of strut fittings, and the gearing down of aviation engines to drive larger and slower propellers. Capt. Holden C. Richardson, U. S. N, retired, who now is engaged in commer- cial aviation designing, declared that better methods of testing the efficiency of seaplane floats and flying boat hulls are much needed. Dr. George W. Lewis, director of re- search of the N. A. C. A., announced that the commlttee is preparing for the immediate construction of a test chan- ned 2,500 feet long in which speed of 40 to 50 miles per hour may be obtained l{lnr the testing of model floats and ulls. William P. MacCracken, jr., Assistant Secretary of Commerce for Aeronautics, suggested the desirability of giving the airplane pilot more certain means of detecting the presence of another plane in the air as a means of reducing the danger of collisions. He said this prob- lem might be worked out by increasing the visibility from the pilot’s cockpit and by the development of an instru- ment somewhat similar to the subma- rine detector, which could pick up the hum of the other plane’s motor and indicate its direction and approximate distance. Pitcairn Tells of Plans. Harold F. Pltcairn of Pitcairn Avia- tion, developers of the autogiro plane in this country, said that the peculiar windmill plane appears to have many safety factors not enjoyed by the or- dinary plane. He said that 1t can drop almost_vertically and still be. aerody- namically stable. While the rate of climb is not as great as that of the or- dinary plane, the angle of climb is greater, he said, pointing out that this meant greater ease in getting out of a small field. His engineers now are working on the problem of starting the rotor without running around the fleld. Following ‘the flights of the autogiro and the new Diesel-motored plane, Lieut. Al Willlams of the Navy, who had flown from the Anacostia Naval Alr Station, Washington, put on a dem- onstration of aerial acrobatics, includ- ing the “outside loop.” one of the most difficult and dangerous of aerial ma- neuvers, On several occasions he dove at a steep angle to near the ground and | then rolled the plane over on its back and completed the first half aof.an out- side loop. A number of planes flew from Wash- ington. Capt. Luke Christopher, former chief test pilot for the N. A. C."A.'and now chairman of the contest commit- tee of the National Aeronautic Associa- tion, and Frederick R. Neely, general manager of the National Aeronautic Association, flew in an Army O-11 ob- servation plane. Lieut. W. G. Tomlin- son, U. S. N, brought the Navy tri- motored Ford and returned with David S. Ingalls, Assistant Secretary of the Navy for Aeronautics, and other dele- gates. Several other Anacostia Naval Alr Station planes were on the fleld and there were several commercial planes from the Capital. ‘The delegates returned to Washing- ton this morning aboard the steamer District of Columbia. U.’S. JOBS OPEN. Civil Service Examinations for Va- rious Specialists Announced. The Civil Service Commission an- nounoes the following open competitive examinations: Junior observer in meteorology. $1,440 to $1740 a year, Weather Bureaus throughout the United States. Junior pharmacologist, $2,200 a_year, Hygienic Laboratory, United States Pub- lic Health Service, Washington. Soil scientist (soil erosion), $3,800 to $4,400 a year; associate soil sclentist (soil erosion), $3,200 to $3,700 a year, and assistant soil scientist (soil erosion). $2.600 to $3.100 a year, Bureau of Chemistry and Solls. Assistant chief business specialist (small dwelling construction), $3.800 a year, Bureau of Standards, Washington. Petroleum and natural gas engineers of various grades, $2,600 to $3.800 a year, Bureau of Mines and Geological Survey. Mechanical engineer, $3,800 a year, United States Penitentiary Service, At- lanta, Ga., and Leavenworth, Kans. Full information and application blanks may be obtained from the Civil Service Commission, 1724 F stree! CLAFLIN Optician—Optometrist 922 14th St. NW. Sewing Machines Used—Guaranteed Cash or Terms | White Sewing Machine Co. 711 9th St. N.W. 10% DISCOUNT to grace every hour of the day. TAnd finally, because starts above Gold Stripe. 3 parrs, $5.70 Is Mayfair F Street Store...also 1013 in Stomeleigh 3 \ SR N I SN SN SN Discontinued Models of “CLARK JEWEL” Gas Ranges I New Models on Display | %< MUDDIMAN § 709 13th' St. N.W. Main 140-6436 - W. D, Toses & Sons SINCE 1861—SIXTY-EIGHT YEARS-OF PUBLIC CONFIDENCE Main 3770 F Street at Eleventh 9 AM. to 6 P.M. Joses Allen-A Hosiery Week Newest Styles and Shades Our Entire Stock Reduced . All These Styles in Efght 'Shades 4 $1-20 = $1-56 9 Regularly $1.50 Style No. 3760 — Sheer Service weight. Style No. 3780 — All-silk Chiffon; silk to top. Style No. 3750 — Sheer Service; pointed heel. Regularly $1.95 No. 3712— Chiffon with picot top. No. 4100~ Chiffon; top; pointed heel. No. 4200 — Chiffon; top; panel curve heel. No. 915—Outsize Service. 80c Regularly $1 Style No. 3665 — Semi- fashioned sheer service. Style No. 3697 — Semi- fashioned silk chiffon. picot picot $1-32 Regularly $1.65 Style No. 3785—All-Silk Dancing Chiffon. Style No. 3715—Silk Chif- fon; pointed heel. E want every woman in Washington to know the superiority of Allen-A Stockings. That is the purpose of this Semi- Annual Selling. Now you may see for yourself the dependability of these hose, their beauty of texture, practicability and style-right colors. You may be sure that whatever your selection, it will be the correct one, the smart one, for Sp;ing and Summer. HE savings are generous and genuine. Every style in our stocks. is reduced. Supply your needs for Summer now. : Exclusive Washington Representatives for Allen-A Hosiery —Just a Step to the Hosiery Section—F Street Entrance