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Show fl Pershing's Criticisms of the j De Haviland Machine to Be J Thoroughly Reviewed. If i WASHINGTON, July 29 Criticisms B j by General Pershing and others of the m do Haviland airplane now the prin- Ifcj cipal output of American factories Ij3 I are being investigated simultaneously1 simultaneous-ly1 1 y by Secretary Baker and tho senate J it committee inquiring into aircraft pro-rj,) pro-rj,) duction. After Secretary Baker's state -III1 . t ment last week to senate committee ml , members that General Pershing had I jj sent a cablegram criticising de Havi-r Havi-r I land machines sent from this country, , Ifc i suggesting chances and disapproving . ftl features both of design and construc- !) tion the senate committee arranged to . ' ' ! reopen its hearings tomorrow for fur- ' . ' ther inquiry into the de Haviland ( . ; type, i Three army officers in charge of , B ' . testing de Haviland machines made at tho Wright plant at Dayton, Ohio, havo been subpoenaed to appear tomorrow. Criticisms of the de Haviland plans, according to senate committeemen ' have come not only from General .' ' ! Pershing, but from officers prominently promin-ently identified with the flying service as well as from American aviators and aeronautical engineers who havo j seen tho British design of de Haviland . j and the American re-designed typo In , i action. Weakness of the wing fabric, j! which is said to havo caused several jj fatal accidents; weakening of the structural parts by excess of steel I bolts and deficient fuel capacity are known to be some of tho objections , raised against the American design. Senators said today that Secretary i Baker had promised an inquiry into Btatements that, in re-designing the de Haviland to take the increased load 1 of tho American type, largely caused ' ' by increased weight and speed of the Liberty motor, the wooden frame Is weakened by use of bolts closely as-, as-, somblcd at structural joints. Secretary i Baker, however, declined to discuss I tho matter at his conference with I newspaper correspondents. I According to information given scn- I ators by tho war secretary 753 do a Haviland machines havo been com- pleted in this country up to tho last I report from official sources of which J j more than -100 have been shipped to j i ', General Pershing who, however, has ! j reported receipt so far of only sixty -1 1 j seven. Thero are no reports from Gen-r Gen-r eral Pershing that any of tho Amori-V Amori-V can -built de Havilands have beon used . by tho American forces on tho flght-. flght-. j ing front i Tho senate mlli tary sub-committco's investigation ot de Haviland produc- tion, members said, has not yet do-f' do-f' volopod that any of tho criticisms 4l 1 made against tho Amorlcanlzcd type are well founded. |