John Clonts wrote:

Why was it a mistake?

As is the case with most aircraft, the landing lights are lined up to give good
illumination in the direction of flight. When a tailwheel aircraft is on the
ground that leaves the lights pointing at the sky. Maule solves this problem by
having aluminum mirrors over the lights. These reflect light down onto the
taxiway pretty well with the standard bulbs. The narrower beam of the quartz
bulbs doesn't hit the mirror. It's almost as bad as not having the lights on at all.

George Patterson
Drink is the curse of the land. It makes you quarrel with your neighbor.
It makes you shoot at your landlord. And it makes you miss him.