Slowdown in PI am Prolongs the W-Loss of Man..- By FRANK R. KENT ,WASHINGTON — Every day the r importance to the United Nations, 1 and particularly to ourselves, of lt;American plane production grows 'greater. “Everything depends on planes. ; Nothing can be done without planes. I Eisenhower wants . more planes. : MacArthur wants more planes. ; Chennault wants more planes. Our allies want more planes.The air supremacy already achieved is not enough. It has to be enlarged; it'has to be extended.It has to become overwhelming. Otherwise, there can be no second front in Western Europe; no invasion of France; no clearing the enemy out of Italy; no driving the German back into his own central fortress; no overcoming those 300 trained, equipped, experienced and unbeaten Nazi divisions (nearly 6,000,000 .men) whose existence was stressed by War department spokesmen at the conferences of industrial labor and newspaper leaders in Washington this week. Every military authority is in accord as to the • vital need for planes. Every observer returning from abroad reports the anxiety of our field commanders for clanes.