Nah, the plane must be able to fly as a night fighter, stealthily applying the Speed of Dark device at night.
Of course, the pilot's got to be mighty careful not to accidentally hit any hippocroccofrogs, when he lands the plane.
And remember not to apply the SoD-cloaking device at daytime, otherwise he'd be spotted right away.
Some good points there Maria. But, what colour was the invisible paint? Anybody got a colour picture, I want to build a model of the invisible man pilot.....
That's gotta be my ex! 8)
I just had to ask: "Honey, is it okay that my family comes to visit on sunday?" Meep-meep! Instant invisible man, and at the speed of sound, too!