Calif Bill wrote:

I think all the commercial passenger jets have a better glide
angle than the normal glide slope of landing.

The normal glide slope for an ILS landing is around 2.5 to 3.0 degrees.
A 747 is supposed to have an optimum glide slope of about 3 degrees,
(19:1) making it at the top end of the ILS glide slope. That is the
optimum, but it will likely be steeper in practice. As an example, the
actual glide slope of the Gimli Glider was about 5 degrees. (11:1)

DC-10 lost all engines off Florida a few years ago, and landed
safely. Mechanic had left the o-rings off the oil plugs for
all the engines.

It was an Eastern Airlines L-1011, and it landed with one engine
operating. (It had been shut down earlier as a precaution, but
restarted.) The o-rings were left off the engine's chip detectors.

http://www.ntsb.gov/publictn/1984/AAR8404.htm