BUR #14464 has been approved by @nonamethanks.
create implication mi-28 -> helicopter
create implication ah-1_cobra -> helicopter
create implication ah-64_apache -> helicopter
create implication ch-47_chinook -> helicopter
create implication ch-53 -> helicopter
create implication uh-1_iroquois -> helicopter
create implication uh-60_blackhawk -> helicopter
Previous topic: topic #22772
Specific tanks imply tank, I can't think of any reason not to do the same with helicopters.
These are all the helicopter tags mentioned on the list of helicopters that are big enough to imply, but I don't know much about helicopters so let me know if any are missing.