In 1995 I was present in HI during the 50th anniversary celebrations for the end of WWII in the Pacific. One morning during all the hoopla I stepped out of my front door in Mililani, headed off to work at Pearl, and glanced over to my left, toward the Kam Highway that ran through town. I was priviliged to see a tight vic of three B-25s flying very low over the trees, rising and falling with the treetops, enroute from Wheeler Field toward Pearl Harbor. They didn't seem to be too loud, although the noise was quite discernable - it was a muted low-frequency growling noise, along with a rapid "chug-chug-chug-chug" after they had passed.
Our property manager while we were in HI was a WWII-era multi-engine AAF pilot who remained in after WWII and went on to fly in the ATC and then MATS and MAC. His time included stints in twin-engined bombers as well, a tour in B-26s in Korea being included. He still preferred the big transports and loved the DC-4/C-54. I remember he said anything I had heard about the noise level in the B-25 was absolutely accurate, he said it was the noisiest aircraft he ever flew.
Our property manager while we were in HI was a WWII-era multi-engine AAF pilot who remained in after WWII and went on to fly in the ATC and then MATS and MAC. His time included stints in twin-engined bombers as well, a tour in B-26s in Korea being included. He still preferred the big transports and loved the DC-4/C-54. I remember he said anything I had heard about the noise level in the B-25 was absolutely accurate, he said it was the noisiest aircraft he ever flew.