Which aircraft has coolant supplied to each passenger window in order to stop the passengers burning their noses when looking out?vololiberista

OK, I'll be the first one to give a wrong answer :(. Let's see how flawed is my analysis:- Windows are hot because of friction with the air.- Friction-based heat is only important at high speeds, i.e, over Mach 1.0- AFAIK, there are only two aircraft that carry pax (that may want to look outside) at those speeds: Concorde and Tu-144.- I have never heard about any cooling system in the Concorde's pax windows.These considerations leave me with the Concordski :( as my answer.Best regards from Colombia,Luis Miguel

OK, I'll be the first one to give a wrong answer :(. Let's see how flawed is my analysis:- Windows are hot because of friction with the air.- Friction-based heat is only important at high speeds, i.e, over Mach 1.0- AFAIK, there are only two aircraft that carry pax (that may want to look outside) at those speeds: Concorde and Tu-144.- I have never heard about any cooling system in the Concorde's pax windows.These considerations leave me with the Concordski :( as my answer.Best regards from Colombia,Luis Miguel

The answer is Concorde. The windows reach almost 100 celsius hence the coolant pipes which you can see exposed in this photo. Notice also how the panel containing the windows is milled out of solid metal. As were the complete side panels of the VC10.vololiberista

Okay, here's another good Concorde question for you: Why was Concorde's nose drooped to 12.5 degrees for a landing, but only drooped to 5 degrees for a take off?Al

Okay, here's another good Concorde question for you: Why was Concorde's nose drooped to 12.5 degrees for a landing, but only drooped to 5 degrees for a take off?Al

So the pilot can see the landing runway over the nose?

Less friction with the wind, so it could reach V1 faster with 5 degree as it would with 12 degree angle.

Concorde flares unusually high owing to its delta wing, so if the nose was at 5 degrees, the pilot would only really be able to see the sky and the nose when landing?

Pretty much everyone got the reasons there. Visibility on the approach is the reason why the nose goes lower on a landing, although the nose was originally designed to go very much lower than the 12.5 degrees the designers eventually settled upon, because although the angle of attack is quite high for Concorde on approach, pilots complained that they would lose a useful visual steering reference with the nose out of sight completely, so up it came a bit on the finalised design. On take off it needed to be out of the way a bit to enable the runway centreline to be clearly seen, but also partially in sight as steering reference, and it also needed to be aerodynamically cleaner than the landing droop in order to promote better airflow for acceleration, so a small droop was deemed enough for take off. All very clever stuff.Al

I'm sure you probably all know this, but I'll chuck these in anyway - Did you know Concorde is almost a foot longer in cruise than it is on the ground, and that the surface metal heats up to the boiling point of water?Did you also know that 10% of the engine's power goes to air conditioning, for that exact reason? Without it the passengers and crew would cook.Yeah, thought you knew that. HahaIncredible stuff though. Really is mind boggling when you think about it. Concorde was/is an incredible machine indeed.

I'm sure you probably all know this, but I'll chuck these in anyway - Did you know Concorde is almost a foot longer in cruise than it is on the ground, and that the surface metal heats up to the boiling point of water?Did you also know that 10% of the engine's power goes to air conditioning, for that exact reason? Without it the passengers and crew would cook.Yeah, thought you knew that. HahaIncredible stuff though. Really is mind boggling when you think about it. Concorde was/is an incredible machine indeed.

The fuselage grows 8" longer at Mach2 and it is still lthe only supersonic aircraft ever built that once up to supersonic speed throttles the engines back!!!vololiberista