Well, bflyer, you might want to remain in your present fleet, as the 'ole Lockheed tri-motor is getting rather long in the tooth.
However, in its day, it was so much more advanced, systems-wise and navigation-wise (if ordered as such, LNAV/VNAV/thrust mamagement) it truly left others in the dust.
Not forgetting autoland, of course...nothing finer.
When you think about it, a thirty five year old design with autoland comparable to todays standards (if not better than some)...well, in short, a mightly fine aeroplane.
