|
Some buses from the 50's and early 60's were well rounded on the front corners. Unfortunately, most were rounded at the rear as well, not taking advantage of the Kamm effect.
Like the Setra S6, S10, some old Neoplans and others.
The GM PD 4104 is rounded as well, and the body/chassis is from aluminum, for lighter overall weight. They are a popular choice for conversion to a motorhome. The later PD 4106, also aluminum, may be a good choice as well. Think those old rounded-rear buses can benefit from a boat-tail conversion...
That "square-look" fashioned buses from the late seventies and 80's was probably a step backwards aerodynamically wise, at the time.
|