Evening Star Newspaper, August 4, 1929, Page 61

‘Model Aircraft This is the final installment on nodel atroratt instruction. Next week Mr. Wil- liams will write a course on the correct launching and fiving of the Pl BY JOHN WILLIAMS, Instructor of Miniature Alreraft, Community Center Department. Well, fellows, I hope your fuselage assembly is now complete. Several of our plane builders have called in to ask just what pieces are to form the slanting oblong for the fin. ‘To construct the fin, as was shown in last week's sketch, cut from your piece of 1-32 by 2 by 12 balsa veneer a strip measuring 1-32 of an inch square. From this cut two pieces 1'; inches long and two pieces 2 inches long. Now continue from this paragraph printed in last Sunday’s course through to the construction of the tail surface. Other plane building enthusiasts wish to know where to buy tools and mate- rials, These can be purchased at the new clubrooms of the Capital Aero Club, 1213 I street, and at the model plane room at Central High School, ‘where I am teaching classes in con- struction of minjature craft Wednes- days and Thursdays of each week from 1 to 4 o'clock in the afternoon. Mate- rials and tools also may be bought at the E, V. Brown School, where I in- struct & class every Tuesday at the above time, You are now ready to make your wing. Slit off two pieces of your 1-32- inch veneer, 1-16 inch wide and 12 inches long. These will be for your two Wwing spars. Measure the centers (6 inches). and on the 1-16-inch surface press in lightly with your thumb nail. This will allow the baisa to bend up at this point for your dihedral angle; that is, the wing forms a flat By placing the spars on your glass and putting a weight, as shown in the sketch, to hold it in place just at the center, you may bend the remainder up- ward until is is about 2 inches from m; glass to the spars at the extreme en Now place a drop of glue in the cen- ter where you broke it with your thumb and allow it to dry thoroughiy. ‘While waiting, cut off another 1-32- inch strip from the 1-32-inch veneer, and cut five pieces from this, each 134 inches long. for ribs. Also cut a piece of tissue 2 inches wide and 12!; inches long. Now that the wing spars are dry, cut 32 inch off each end of one of them for the rear spar. Glue one rib in the middle of the spars, making them parallel and 13 inches apart; then the second rib mid- ‘way between that one and the end, and the third, on the extreme end, will be slanting. Do the same to the other side of the center, but not until the first side is thoroughly dry. Cover with tissue on the top side in the same manner as you did the fin. You will find it easier to start in the middle and work toward the ends. When the banana liquid is dry, with your scissors trim the edges that stick over, being always very careful. You will need wing clips to fasten the wing to the fuselage. Bend your music wire (or fine hair- pin) to the shape and dimensions as shown in Fig. 3 for the front clip and Fig. 4 for the rear clip, using your round-nose pliers. ‘To fasten these on, push the points | through your wing spars at the center and glue with a very small drop. A piece of your No. 7 wire, 6 inches long. will make the landing gear. Bend it in the cenfer as you did your clip. This then will clip onto your fuselage about 17, inches from the end of the thrust bearing. Bend a small hook on each of the ends to accommo- date a small plece of bamboo or broom straw 315 inches long, which will act as an axle. Glue this axle in place. ‘To make your wheels, Jay a penny on your plece of baisa veneer and neatly cut around it with a sharp knife, Plerce the center with a pin or a plece of wire to allow the wheels to fit on the axle. A small drop of glue will act as a nut. When the landing gear is placed in position glue it (Fig. 5). It is very important to have a good propeller, or, as the model builders call it, & *prop.” Follow these instructions carefully, and you should be able to carve your first one good enough to fly your plane. Do not become discouraged if your first attempts are unsuccessful, but start over again right away. b Your “prop” measures 5 by % by 3 inches. Your first step is Fig. 6. Draw a light pencil line from each corner to the corner opposite on the 3;-inch sur- face forming & criss-cross. The same thing is done on the other %-inch sur- face. Fig. 6, b, ¢ and 4 d, show the suc- cessive cuts to make with your knife, cutting from the end toward the hub, which is marked with an arrow in Fig. 6-d. The measurement here should be 3-32 inch. ‘To accommodate the propeller shaft, make a hole by pushing a pin or piece of wire through the hub from the 34- inch surface. Take more time and patience now for the next steps. On the ends of the “prop” draw a pencil line from the upper right-hand tfio the lower left-hand corner, as Fig. -e. Holding the “prop” in your hand, the end away from you, carve first on the right-hand side 34-inch surfage. Start- ing at the hub, take small shavings, gradually spreading until at the extreme end you are down to the diagonal line. Go very slowly, and if you find that the knife'is digging in—or going against the grain, as we call it—turn the “prop” around and carve toward you, sort of peeling the shavings off. | With a small piece of sandpaper, |smooth this side carefully, getting all the way back to the hub, as the hub is to be as thin as possible. One side of one end is finished. Turn the “prop” end for end and repeat your process. ‘We are now to get the proper thick- ness on the blades by carving one of the surfaces left. Extreme care must now be taken. Go slowly, carving small shavings. The finished blade when held up to the light should show clear. And, remember, if the grain starts slitting, carve small {shavings in the opposite direction. | Glue will repair an accident, so don't give up on a slip. The ends may now be rounded and the rear surface carved away at the hub about one-half (Fig. 6). Now you may carve your hub thinner. Sandpapering will smooth out the rest of the knife cuts. Bend a small hook about % inch diameter on the end of your No. 7 wire and cut off at 114 inches long, as Pig. 7, for the propeller shaft. Push the straight end through the hole in the hub !g inch: bend this over and glue it. The hook is to be on the cut- away side of the “prop.” Next week I will explain the actual flying of this type of plane. HELIUM EXPERT BEGINS SEARCH OF ROCKIES FOR NEWER FLOW Experiences of Lieut. Bottoms in Texas, Oklahoma and Utah Have Revived Interest in Balloon Gas. Once in 2 while one hears & human story that challenges interest in an otherwise unromantic element or in- dustry. Such a story is that of Lieut. R. R. Bottoms, U. S. N. R, a hellum engineer, who believed, and whose faith in that belief led him to seek and find the richest supply of helium-bearing gas_the world has ever known. Helium is one of five rare atmospheric gases, characterized by their compara- tive rarity, their chemical inertness and the fact that they are monatomic ele- ments. Back in 1895 the first helium was located (in a test tube) and named. For 15 years the gas was the plaything of scientists the world over, And at the end of that time it was determined to be existant in minute quantities in many es, as well as in the atmaos- phere to the extent of one volume in 185,000. Most scientists had questioned its existence in large enough quanti- tles, or rich enough quality, to make purification on large scale practical. Helium was first suggested for use for inflation of lighter-than-air ships in England in 1914. Helium, next to hydrogen, is the lightest known gas, and while 10 per cent heavier than hy- drogen, will not burn, as does hydro- gen. The question of its use for aero- nautics was taken up seriously in England, but it was not until during the war that it was brought to the attention of the United States Army and Navy officials, where it met with favorable reception. Funds were allotted for three ex- perimental plants, and these experi- ments pointed out that helium produe- tion was not only feasible, but could be accomplished at a practical price. Then the Government built a large helium plant at Fort Worth, Tex., under Jurisdiction of the United States Navy, later transferred to the Bureau of Mines of the Department of Commerce. Cause of Enthusiasm. The natural gas used for helium ex- traction at this plant produced about 175 per cent helium, not a very rich |gas, th return, but the good qualities of helium for lighter-than-air operations were such that enthusiasm was manifest, Recently the Bureau of Mines aban- doned the Fort Worth plant, due to the completion of a vastly larger plant at Amarillo Tex. During the life of the Fort Worth plant about 50,000,000 cubic feet of helium were produced. So much for governmental production of helium. In 1923 Lieut. Bottoms was in charge of the United States Navy's helium re- purification plant at Lakehurst, N. J., and wide awake to the possibilities of a development he had made—a process for the economical separation of helium from the natural gases on which it is borne. Hitherto the attitude of the aeronau- tical engineer toward helium had been “Hellum gas is fine, but since it is so rare, where will we find enough to make it economical for use, even considering the extra safety factor, due to non- inflammability?” Bottoms’ credo was something like this: “My process will make -helium cheaper. As long as there is any helium, this will be true. If we can make it cheap enough, its possibilities for use in airships are infinite. There is a real field for a commercial indus- try able to produce helium enough to meet the demands. If the available sup- ply is not great enough, I should able to locate an adequate supply by a thorough survey of existing natural gas sources.” So Bottoms had two gifts—his pro- duction process and his credo. Add to this the discernment to realize that both were worthless without a backer through whom he could get action. He hunted & backer—New York, Phila- delphia, Henry Ford, the Marland Oll Co. and other oil companies and gas manufacturers, Nowhere did he the desired financial support. Disheartened, the project was drop- rl:d for & few months. Then a friend, e secretary of the Gas Manufacturers’ Association, suggested that he see the Kentucky Oxygen-Hydrogen Co. ef Louisville. ‘This firm had been bulit up for the manufacture of oxygen, hydrogen and acetylene for welding. The group of men in the concern were all young men, headed by Walter H. Girdler, the presi- dent, who is also a director of the largest bank in the South, and E. G. Leuning, an engineer of great experi- ence in gas manufacture. Nowhere in the United States is there a more pro- gressive group, for, in addition to being young men, they had vision, courage and unlimited financial backing. It was a hard pull, selling the idea of helium making to that Kenticky group. Helium was & new thing as an industrial factor. Finally Bottoms suc- ceeded in getting the project over, and the deal was ready to go through when the Shenandoah crashed. Lighter-than- aircraft flying was put back more than five years by that crash, for only now have we regained the confidcnce of 1923 in this mode of transportation. ‘The Kentucky group rebounded rath- er more quickly than the rest of the industry, apparently, for early in 1927 the board of directors decided there might be something in Bottoms’ credo and bullt at Dexter, Kans, the only commercial helium-producing plant in the world. ‘The Bureau of Mines spent years in, bullding its Amarillo plant. Four months from the day the Heltum Co., as the new subsidiary was known, was awarded its first Navy contract the first helilum was delivered. Meanwhile the plant had been designed, built and put into production. Rather amusing is the story of the original discovery of helium in large quantities. Back in 1905 there was an oil company drilling. in Dexter, Kans. But, instead of oil, they ran into gas. This was not unheard of in the Kansas oll fields, but had never happened before at Dexter. Pepped uF at the discovery of , the towns le arranged a cele- bration, with the lighting of the gas to be part of the initiation of the gas supply for the town. Pressure Blows Out Torch. The evening arrived. ‘The mayor made & flowery speech, lit the toreh, and_ordered the ;“h’ turned on. The torch went out. e mayor explained with nice words and a naive manner that the gas was under such pressure that it blew the torch out. A bonfire was built, and just a little gas turned on. Even this put the fire out. And so it became known as “laughing gas,” to tI residents of Dexter. Dr. H. P. Cady, professor of chemis- try at the University of Kansas, heard about the gas at Dexter, and on in- vestigation found that the gas con- tained a relatively high percentage of hellum, which accounted for its not burning. Relatively high, that is, in view of the atmospheric ratio of 1 volume of helium to 185,000, for the Dexter gas showed 1.84 per cent of helium. 1 ‘When Bottoms took his helium puri- fication and extraction process to the Kentucky company, he remembered the old story about Dexter's “laughing gas” and, seeking to locate a source of helium-bearing gas for the new in- dustry, he investigated the gases in Kansas. At Dexter the plant was built, and nearby was found a 2 per cent gas. ‘This 2 per cent gas was as rich a helium-bearing gas as was located until a few months ago. Forced to price competition with the Bureau of Mines’ new helium plant at Amarillo, with ex- iinction as the alternative, Bottoms soon realized the. only other possibility of competition was in finding a richer gas, which would mean a lower price. Government examination of all able gases had been ‘made, but the chagrin of the | THE SUNDAY STAR, WASHINGTON, NORTH CAROLINAL. PLANS AIR COURSE Colorado Professor Added to Faculty for Opening of Fall Term. CHAPEL HILL, N. C, August 4.—In conection with the plan for the inaugu- ration of a course in aeronautics with the opening of the Fall term, the Uni- versity of North Carolina has added Prof. Neil P. Bailey, a_Colorado man, to the faculty of the School of Engi- neering. Prof. Bgiley is a specialist in aero- nautics. He comes to North Carolina with a splendid record and excellent recommendations. He was graduated from the University of Colorado in 1924 with a degre in mechanical engineering and was awarded his master's degree in mechanical engineering from the Uni- versity of Idaho in 1927. He comes here directly from the University of Idaho, where he taught courses in aeronautics. Comes Well Qualified. Since graduation Prof. Bailey has had excellent practical mechanical and aerodynamic training, having taken the advanced course in engineering given by the chief engineer of the General Electric Co, Pjof. Bailey has since specialized in aeronautics. His work in air flow theory, dimensional analysis, i elastic action of airplane structures and airplane design thoroughly qualifies him to teach the aeronautic subjects of the curriculum. He will give other courses in the School of Engineering. Heading up the course in aeronautics, which has attracted wide attention from prospective students, will be Prof. E. G. Hoefer, head of the department of mechanical engineering. Other members of the faculty of the School of Engineering will give courses pro- viding the foundation work for the sub- jects in aeronautics. Y Prof. Hoefer has been a member of the university faculty for the last seven years. He came here from the Univer- sity of Wyoming, where he was head of the mechanical and electrical engi- neering department. He has also taught at the University of Iowa and at the University of Wisconsin. Graduate of Wisconsin. He was graduated from the Univer- sity of Wisconsin with the B. S. degree in mechanical engineering in 1905 and was awarded the M. E. degree there in 1915. Following graduation he was & consulting engineer for several years. While at Wyoming he was also consult- ing engineer for that institution on its heating and power system. During the war he was a member of the naval consulting board. He is a native of Illinols. The university’s plans in aeronautical engineering are to follow the usual practice in the 10 or 12 universities in the United States giving instruction in aeronautics and are in accord with the suggestions of the Daniel Guggenheim Fund for the Promotion of Aeronautics. In accordance with this practice, Prof. Hoefer stated, the foundation for this work will be the regular course in mechanical engineering, with options in specialized aeronautic subjects in the Jjunior and senior years. “The co-operative junior year will glve students an opportunity to get practical experience at flying flelds or with airplane manufacturers,” Prof. Hoefer sald. Lays Strong Foundation. “The present plan of beginnis subject of mechanics in the fi year and continuing through the junior year lays an upec’:uy strong founda- tion for stress analysis and structural “'2"2} both fl:r v.lucguu'n of alrplanes an airport structures. q “An unusually sound mathematical background is also laid, as instruction 33.%-uuummuwmm le junior year. “The courses in economics and busi- ness administration, covering two full years of all the university engineering courses, give & solid foundation for exec:iuva .n;om admlnm m‘ndu\gy ‘work in the air trans n industry, “Thus, the seronautical option will follow the plan of other university engineering courses in g & strong technical foundation with considerable cultural background.” PRIVATE SKY YACHT HAS PORT LUXURIES All-Metal Liner Being Built in England for Wealthy Irith Sportsman, the an SOUTHAMPTON, England (®.—A private flying yacht, with the luxurious fittings of a surface craft, is nearing completion here. In basic design it is similar to the $upermarine flying boats which not long ago cruised in formation from Plymouth to Australia and return, but in other respects it leans to luxury rather than speed or distance. The yacht is all metal and the for- ward part of the hull is occupied by the crew's quartérs, wireless and cook- | ing galley. Amidships are a commo- dious passenger saloon, owner's cabin and bathroom and astern is & luggage hold. There are open cockpits in which passengers may sit during flight and when the yacht is afloat-in calm water railings can be erected around the hull on stub floats :nd deck chairs and tea tables taken out. Three engines, totaling 1,500 horse- power, 'mn'wfl the y;cht.r [ speed of 100 miles per hour. A wealthy Dublin sportsman is the owner. PILOT TAKES CONTROL OF AVIATION BUSINESS Former Flyer Heads Wichita Plant That Turns Out 50 Planes Weekly. WICHITA, Kans, (#).—Once a pilot himself, Walter Beech has taken the controls as president of one of the (l).umry'l largest airplane manufacturing nts, [ P! 3 The ayiation business was In its in- fancy when he learned to fiy. Now his Wichita plant turns out nearly 50 planes a week, principally the six-place Beech piloted across the line in Detroit, un.g.to win the Ford reliability B. Ford trophy. He also won honors the same year at the tennial air races in Philadelphia. 2go to a 3' r cent gas at Alma, Kans. AR T el e ‘mon the Harley Dome district of Grand County, Utah, & 7,07 per cent helium “sufficient. gas in quantities 1o revolu- tionize the attitude of the lighter-than- air_ship industry toward lium. There is a great deal of the en about Bottoms, whose official title chief ‘chemist of the Helium Co. lways sees for & .t: e en{ywmhl engineering. is z ] done—it rei ractical. That 'is Fn-.n Bottoms now believes it possible richer source Above is the the model eraft, m boys in liams, Al tured above, on llen the picture also helped to erect the Freeman, Kenneth Kinsella, Richard Lucas, H: Gertrude Tryon, who originated the idea for the plane's trip, and of sponsors of the movement by the W. C. T. U. to send a (‘:“d-wlll hul:' :t::lt:‘m. "lv'lhlc iehard * Frissell, Miss /arren Wheeler, BINGHAM SAYS MODEL BUILDING LEADS TO AVIATION CAREERS Work of Children Lauded by Senator, Who Points to Great Opportunities for Engineers and Designers. Declaring that model airplanes offer the primary step for an aeronautical career, Senator Hiram Bingham, pres- ident of the National Aeronautical As- sociation, stressed the advantages and benefits to be reaped in model plane building and advocated the movement now being conducted by The Star. ‘The Senator’s statement follows: “Through the efforts of The Evening Star, the children of Washington have an excellent opportunity to-develop in- terest in aeronautics that not only will be of great value in the future, but will have an appeal to their sporting, com- petitive and inventive instinct at the present time. 3 “Model airplanes offer the primary step for an aeronautical career, and every boy, and girl, for that matter, should take advantage of the oppor- tunities that are now presented to ob- tain guidance and counsel on the sub- ject of bullding and flying model planes. Once boys and girls have built model planes of the primary type, they will readily recognize the chance for im- provement, until the time will come when they will have scale models of ac- tual airplanes that now fly the airways of the Nation, performing to their de- light and happiness. It is not an easy task to construct a model plane which to all outward appearances resembles a popular type in operation today and which at the same time will fly itself. “But once this goal is accom| ed, the aeronautical future of the designer and builder is indeed bright. “The Nation needs aeronautical de- signers and engineers and needs them badly. h model building, the air- craft industry will obtain its engineers in the future. I know of no better course for the youth of Washington, who are keenly interested in flying, pursue than to utilize the vacation months in model plane building and model plane flying. The children of Washington should interest themselves in this important matter and they will | find that the time was well spent. not only with respect to their future educa- tion in aeronautics, but with respect to the unlimited happiness that model plane flying will bring them at the moment.” \ nofher FINE FEAT URE g lymouth has oer - [~ v L = 0| road; Foster Wilkinson, 2826 Warren D. €, AUGUST 4, 1929—PART 4 AIRCRAFT LEAGUE GERTIFIES ENTRIE Four D. C. Youths Qualify for National Model Meet. ‘The District Model Aircraft League has been selected as the official body to certify local boys for the 'd Na- tional Playground Aircraft Tournament, conducted by the Playground and Recreational Association of America, which will take place at Louisville, Ky., October 18 and 19. Last year nine Wash! model aviators qualified for the national tour- nament held at Atlantic City. of the nine boys made outstanding showings. Herbert Dorsey won the national senior championship and Lloyd Pish and George Bell won third places zrln t]ha senlor and junior classes, respec- y. Flyers Are Classified. Local fiyers are classified in the Dis- trict Model Aircraft Tournament ac- cording to the performance of their planes, but record also is kept of the age of the fiyers, so that in certifying them to the national tournament, they will be recorded as seniors or juniors. Seniors are those boys who are past their sixteenth birthday, and who have not yet attained their twenty-first birthday by September 30. Juniors are those who have not yet attained their sixteenth birthday by September 30. Owing to the great interest in the local tournament on September 3, 4 and 5, an extra outdoor meet has been scheduled for August 10 at 9:30 in the morning on the Monument Grounds. A qualification round will be.held to allow newcomers to test their planes and qualify for the local contest. A flight of 5 seconds is required for qualification. Coming In Fast. Qualifications are coming in fast from the boys who are attending the com- munity center classes meeting under the direction of John H. Williams each ‘Wednesday and Thursday afternoon at Central High School. Many of the boys took only two days to bulld their first planes. Four boys qualified with the glelne for which directlons are now ing given by Mr. Willlams through the in- struction course on the Sunday model aircraft page. They are Elliott Valentine, 805 Kan- sas avenue: Hugh B. Scott, 7029 Blair street and Martin Provenson of 6629 Harland place. The District tournament is officially sanctioned by the National Aeronautical Association, which also is officially sanctioning the National Playground iature Aircraft Tournament. Luke Christopher, secretary of the N. A. A. contest committee, is a member of the Our Model Plane Pilots News, Views and Cossip Concerning Events and Developments in the Junior Aeronautic World. The model aircrajt editor would like to hear what you Rave to say ebout model planes—what you are doing or would like to do. Write letters that will tntereat other builders. They may be able, through this column, to Relp you soive vour problems and you may be abdle to help them. John Sullivan, 14 years old, of 1412 ‘Twenty-ninth street, member of the model aircraft instruction class at Cen- tral High School, is building & scale model of the Bellanca plane. Although the new model is not yet wmmm, the ng aviator has succeeded in keeping t aloft for 1 minute and 9 seconds, which is considered record time. John also is pre] § & mystery single- ruuher model and a rise-off-ground ype. A compressed air model of his own origination is being constructed by Frank Salisbury, 14 years old, of Waver- 3" Hills, Va. When questioned as to e decription of the plane Prank re- fused to divulge any information what- ‘working on my new model under cover,” he sa; on the ment.” 3 ever, that when he did fly the plane he expected to establish » world's record. Considerable excitement reigns in Dis- trict model craft project., Model eraft instructors are pleased with the special helicopter model now circles over Prank’s | PoGS under construction by Otho Williams, | hi 16 years old, who qualified as an ace in a recent tournament in his first & model craft. Instructors 's new craft is & good prospect and expect much of the tiny ship in the final contest. Otho also Drothers' st piane, which s oo be ' first plane, which is entered in the tournament. i One plane for each coming contest is being built by William Pizzinne, 15-) = old model aircraft enthusiast, of ’0’1?‘0 street. The types under construction are a baby rise-off-ground model, hand- launched scientific, scientific rise-off- ~round, single-pusher, fuselage model S 3 every event,” William resolutely informed Star’s miniature plane editor—and if con- fidence and enthusiasm have anything to do with it William will do just that. Down in the basement of his bome L:o{hd Barrett is constructing a mode} o s bulaing & D3ing:secle Toodel g & ing-scale E-g):,noclls plane and & ctor. Lloyd says he entes off of is planes in the final eontest. JUMPER HURTLES MILE BEFORE OPENING CHUTE Indiana Stunt Artist Falls 83 Seconds, Then Pulls Ripeord. FORT WAYNE, Ind. (#).—Six stop- watches timed Gene Rock, local para- chute jumper, when he fell 33 seconds before jerking the rip cord to his chute. The stunt, part of an American Legion air circus at Elkhart, was witnessed by Capt. C. E. Hofstetter of the Ordnance Department of the United States Army. Capt. Hofstetter, using the accepted speed of falling bodies as a basis, fig- ured that Rock had 5,500 feet —or more tl'i:n a mile—before opening is r.rlchu Z e accepted record for such a drop, it was sald, was 4,400 feet. Rock has been a parachute jumper 12 years. for the District tournament in Septem- ber have been printed and copies may be obtained at the Community advisory board of the District League. Announcement of the rules and plans Size Trres il ! i Center De ent, Franklin School BALTIMORE COMPLETES ONE MILE OF BULKHEAD Fill Construction at Dundalk Mu- nicipal Airport Approashes Half-Way Mark. Special Dispatch %o The Star. BALTIMORE, August 3.—One mifle of the two miles of bulkhead to surround the fill at the Dalkirk Mu- nicipal Airport has been built and 8,- 500,000 cubic yards of material of 12,000,000 necessary to comj have been placed in the to a report of Elmer E. Hammond, har- bor engineer. One of the advantageous features of the Baltimore airport is that it will pro- vide facilities for the landing of Sea- planes and will have nearby an anchor- age for vessels, water-borne commerce and air trafic forming a junctiom. City officials are not yet ready to po! completed, mu upon the facility with which the re- quired 12,000,000 yards of earth can be obtained. Pending completion of the project Logan Field, which is being ex- Bullding, teenth and K streets. tended by & 47-acre tract, will be util- ized. 6 ol Y Y3 e ‘3 CHRYSLBR MOTORS PRODUCT YOU will find on Plymouth the largese tires of any car in the low-priced field. Real over-size balloons—4.75—more thaa ample for this full-size car, That is why the improved Plymouth—. with all its full-size roominess and great comfort, with all its Chrysler-designed style and beauty, with all its Chrysler-like swift- nessand smoothness, with all its ruggedness of construction,and the safety of its Chrysler weatherproof internal-expanding 4-wheel hydraulic brakes—with so much else to talk sbout, devotes an entire advertisement to over-size tires. Largertiresmean ridingonmore air,which in turn means greater buoyance and com- fort. Then, too, larger tires wear longer, add much to appearance and, most impor- tant of all, give the car greater traction, s firmer grip on the road—and that means sure-footed safety. From tires to roof, from radiator to gaso- line tank, Chrysler e ngineers have em- dowed the improved Plymouth with qualities and abilities never before available in a car of low price. Make your own com- parisons—the facts can’t be missed. 3655 > and cpwerds . o. b. factery Coupe, $655; Roadster (with rumble seat), $675; 2-Desr Sedan, $675; Touring, $695; De Luxe Coupe (with rumble seat) , $695; 4-Door Seden, 8695, All prices f. 0. b . Sfactory. Plymouth dealers extend the comvemience of time payments. i PLYMOUTH AMERICA’S LOWEST-PRICED FULL-SIZE CAR H. B. Leary, Jr., & Bros. Executive Office: and Service , 2 : 1612-22 You £t. N.W. s Salesrooms—1612-22 You St, N.W. Connecticut Ave. and Que St. N.W.. . and 10th and H Sts. N.B. Used Car Salesrooms 1321-23 Fourteenth St. N.W. Skinke \ Sales and Service 1216 20th St. N.W. Phone Decatur 4640 Cejltral Motor Sales Co. Sales and Service -+ 1317 14th St. N.W. Phone Decatur 4597 + & r Motor Co., Inc. Frank H. Rowe Sales and Service 3307-9-11 M St. NW. Phone West 227 Sales and 33 New York Phone Met, 922§ Blanton Motor Co. Service Ave. N.E.