Jet Fighters And Bombers Fill Air Over Dow FieldAir Guard Practice Low Level Mission(Special DiiptlfblBangor, Aug. 22.—The air over Dow Air Force Base uas thick with jet fighters and attack j bom bn s on pi act. ice low-level j missions today as good weather |allowed 1.200 officers and men ofj jthree stales’ air guard units to I bring this season's air operations to their peak. jDining jthe morning, planes from three jrt fig liter .squadrons tanged the width and bread!Ii of the .slate iyi part-time pilots from Manchester, N. H, Burlington. VI.. and Bangor unlimbcrcd guns Hi, sleeve targets or flew practice attack and Interception missions.Later in the day. wingtip fuel tanks were removed from the jrL fighters and replaced by 100-PQiind sand-filled dummy bombs for sorties over the Pickerel Pond bombing range.As the airmen and ground crews, vetoiam and recruits, settled down into a steady training routine after a busy week end of preparation. Col. Philip E. Tukev. jr.. fcommanrting officer of the Joint encampment, said he was welt pleased at progress. He said he looks forward lo a highly instructive Iwo-weok period.■While phots and ground crows r saw to flying and servicing I lie b speedy Jets, ncaily 200 iremits began their basic liainlng with a series of onrntation lectures A number of military training films were shown In the afternoon.Only one air accident had occurred since the encampment Slav led Saturday, Lt George D. Aiken, 25, of the 132nd fighter squadron, crashed landed an F-80 jet near North Sedgwick Sunday afternoon when his power apparently failed.Aiken escaped with onlv a shaking up after the jet skidded nearly 1.000 feet with wheels retracted.irii/ri