B742
B742 stands for Boeing 747-200 (airliner)
B752
B752 stands for Boeing 757-200 (airliner)
B753
B753 stands for Boeing 757-300 (airliner)
B744
B744 stands for Boeing 747-400 (airliner)
B762
B762 stands for Boeing 767-200 (airliner)
B763
B763 stands for Boeing 767-300 (airliner)
B77
B77 stands for Bratislava 77 Strain
B772
B772 stands for Boeing 777-200 (airliner)
B773
B773 stands for Boeing 777-300 (airliner)
BAAAP
BAAAP stands for Business Aviation Airport Access Program (National Business Aviation Association; Washington, DC)