Loewy's own car had a few special flamboyant frills: a plastic tailfin, a tiny gold grilled air scoop above the emblem on the hood, recessed door handles, porthole windows and .
Testing his controls with a wide, lazy-S turn, Crossfield, following procedure, jettisoned the X-15's ventral tailfin, which would have interfered with extending his tail .
Grammarwise, it is permissible to tailfin any word with the suffix meaning "in the manner of.