The B-26 came along in 1940 and it had tricycle landing gear.
One of it's early problems was the front gear collapsed a few
times. I believe the A-20 was even prior to the B-26 & A-26.
A-20 and B-26 are similar in a lot of ways.
Great photos guys. I was fortunate to get a ride in the B-17G "Texas
Raiders". Kept watching out the waist gunners window for
"Focke Wulf FW-190s and Messerschmitt ME-109s.
Thanks