Back to the future, 1940s/1950s style

[Grey Havoc]

https://www.youtube.com/watch?feature=player_embedded&v=07nU_BS92XI

http://www.telegraph.co.uk/travel/travelvideo/12043454/The-ultimate-window-seat-Pod-on-plane-roof-would-offer-360-degree-views.html​

 

[GTX]

Cool...but I doubt you will ever see in in reality

 

[The Wave]

I wouldn't want to be in there when a flock of birds goes by!

 

[LowObservable]

Could get some nasty sunburn.

 

[Grey Havoc]

The stairwell version can be seen on the right in the image below:

http://www.bbc.com/autos/story/20151221-skydeck-is-a-bubble-on-the-edge-of-space​

 

[riggerrob]

Now being replaced by tiny cameras imbedded in the tail, wings, belly, etc. and viewed on seat back screens.

 

[Abraham Gubler]

I wouldn't want to be in there when a flock of birds goes by!

I wouldn't want to pay the cost of covering the extra fuel burnt to match the extra drag of that nacelle on a Sydney to London flight.