i was in ww2 from 1942 til 1945, in the 554th signal aw,attached to armys 6th air force, i was a radar operator on units 270s & 271s. i was in aquador,galapagos islands & panama jungles. we protected the panama canal. our units could pick up a target 200 miles. our interseptions were by p 40 & p39s. charles b .imperio from WV. i am 82 yrs old now.