Ah, Lone star, a whole new thread
Certainly we had a tradition of naming or renaming for instance P40 Kittihawk or our Tomahawk. Though we mixed the C130/F4/E3 with Hercules/Phantom/Sentry we kept your name but used the designated too. With the CH47 we tend to use the name. Modern usage suggests we keep your naming.
MQ9A doesn't roll off the tongue.