What happens when a 767 lands just a little bit too hard....

it depends on how much load capacity is in the existing structure as to how much needs to be modified to attach a pylon... Bob may have some insight what mods were made

phunny... was walking by the TV this AM... one of the news channels was showing the same video of the landing that we have been talking about...

 

And when the 747 first went into service there were no wide-body freighters other than military.

 

If I remember correctly, the spare engine hardware was an option for any 747. It didn't have to be a freighter. The 747 freighters came later with nose opening and carrying an engine or two was no sweat. The structural option to the wing was internal , the engines were bolted to pads underneath the wing . I'll dig through my stuff to try to find some pictures. I did a design study on loading engines on 767 freighters and it worked with 1.00" clearance using my engine buck design.

 

I recall that Qantas' unique 707-138s were equipped to carry a fifth engine in the same manner - with bullet fairing - and I recall at least one photo showing one of their 707s doing just that. I don't believe that any other 707s were so equipped.

 

And I also recall that when the first turbofans appeared in the early '60s, Delta referred to their fan-equipped DC-8s as "fifth-engine jets", implying that the fan-equipped aircraft had as much power as five conventional turbojets.

 

I stand corrected, James. The Russian stuff is all fuzzy to me anyway.

 

[ame]http://www.youtube.com/watch?v=ewbFlRaAd5c[/ame]

Very interesting.

 

Here's the photo I was thinking of; unfortunately I haven't been able to find a bigger version.
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Yes, Bear is TU-95 Turbo-prop
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I looked it up in a book I have on cold-war era planes - the reference said those big contra-props turned at only about 750 rpm when cruising. The turbines were over 15,000 h.p. each.

So, you can see why all the flight film of them shows the props just barely seeming to turn.