Yes, the 13 mm X-15 used the same retainer as the Vampire/Banshee/Jinx.
Not sure about the 18mm "flying manhole cover".
I LIKED the "random mayhem" flight pattern of the 18 mm one.

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When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, TURMOIL, FIASCOS, and HAVOC !