SUPPORTERS OF SST WAVER IN SENATE
Sen Transportation subcom hearing; Sens Pastore and Pearson, former supporters of development, indicate they will vote against $290‐million budget request; cite charges of craft's impact on ecology and other unsolved high‐priority problems in air, rail and mass transportation; Treas Under Sec Volcker, in lr to subcom, says dept no longer believes craft would stimulate drain of US tourist dollars abroad; project dir Magruder testifies that if US airlines are forced to buy craft abroad there will be $72‐billion loss in balance of payments over next 20 yrs; Transportation Dept Under Sec Beggs backs project; says it would protect and preserve US aircraft indus