Questions tagged [concorde]

Questions about the legendary Aérospatiale-BAC Concorde.

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44
votes
4answers
15k views

Why was Concorde never sold as a private business jet?

Airliners like Boeing 747 and even Airbus 380 are at times considered as personal jets for extremely wealthy people. Looking from the side, Concorde was ideal for this role: while not very big, it ...
36
votes
4answers
48k views

Why was Concorde's cockpit so complex?

Source Why was this cockpit much more complex than any other modern day aircraft or a fighter jet? It looks to have many more buttons and controls, and very small (interesting) screens. Also, its ...
32
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2answers
8k views

Why doesn't the Concorde have any wing fences?

A Wing Fence is a straight, vertical "fence" running from forwards to backwards down the wing. This MiG-17 has three fences per wing. I've also seen them on delta-winged aircraft such as the MiG-25. ...
28
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3answers
8k views

Was the transatlantic crossing for Concorde too short to reach optimal cruising altitude?

When listening to Gander/Shannon ATC on shortwave, you could hear Concorde communicate its planned flight levels at longitudes from 20 West till 50 West. What I remember is that it would continue ...
28
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5answers
11k views

Why was the Concorde painted white and not black?

It's well-known that the stated reason the Concorde was painted predominantly white was to mitigate heating problems. However, given that the source of the Concorde's thermal woes wasn't excessive ...
27
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2answers
9k views

Why didn't the Concorde have flaps or slats?

It's well known that the Concorde had no flaps or slats. The lack of high-lift devices considerably reduced lift at low speeds, requiring the Concorde to take off and land at higher speeds and angles ...
24
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6answers
7k views

In what way are the Concorde's engines considered efficient?

The Concorde is powered by a bunch of Rolls-Royce/Snecma Olympus 593 turbojet engines. Much has been said about how efficient they are at speed, and the fact that they allow long-range cruise at Mach ...
21
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2answers
10k views

Can a sonic boom produced at 60,000' be heard on the ground?

The Concorde normally cruised at an altitude of 55-60,000 feet, but wasn't allowed to fly over populated areas due to the noise it produces. Can the sonic boom of an aircraft at 60,000 feet be heard ...
19
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2answers
7k views

Why is it said that the Tupolev Tu-144 had superior aerodynamics to the Concorde?

A quote from this article: "The Concorde had better range, braking and engine control but the Tupolev had vastly superior aerodynamics." What is the basis, if any, for this statement on the ...
16
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1answer
9k views

At what altitude did Concorde go supersonic?

At what point during flight would Concorde go supersonic? Would it climb to cruising altitude first? Does altitude affect the transsonic difficulties (buffet, need for extra thrust, etc.)?
15
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1answer
2k views

Why were there passengers allowed on Concorde's route proving flights?

Based on this site, Concorde needed to fly 750 hours to prove its airworthiness and be used in regular service. Air France and British Airways flew two Concords (F-BTSC and G-BOAC respectively) on a ...
15
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1answer
655 views

How were astronomical observations performed from Concorde?

In addition to passenger flight and charter flight, Concorde has been used for astronomical observations, including the longest solar eclipse observation on 30th June 1973(PDF) and observation of ...
14
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2answers
2k views

What are those things under the Concorde’s cockpit windows?

I’ve noticed there are little bits sticking out under Concorde’s cockpit windows and they’re too small to be canards. Are they some kind of vortex generator or something? (Source)
14
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3answers
2k views

Why were the windows on the Concorde about the size of a hand?

I just saw a comparison between the 787 and Concorde windows. I could be wrong but it almost seems like a hand could cover the majority of the window.
14
votes
1answer
3k views

Why did the Concorde require a droop nose and how did it work?

As seen in the picture below, Concorde used to have a droop nose which would be deployed during takeoff/landing and would be retracted to the normal position while in cruise (do reduce drag). ...
13
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2answers
2k views

Could Concorde have used swing wings?

Would it have been possible to equip the Concorde with swing-wings to help with lift at lower speeds? The delta wings on the aircraft worked well at high speeds, but it took a long time for it to ...
13
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1answer
719 views

Did Concorde's sonic booms affect other air traffic?

Given that Concorde's sonic boom reached the ground, it also must have reached other nearby air traffic. How was this dealt with? I imagine passengers would not welcome hearing a loud boom during ...
13
votes
1answer
276 views

Could one see stars from the Concorde in daytime?

The Concorde flew to an altitude of 60,000 ft (18.3 km) where stars should be visible at noon, aren't they? This question asks on how high stars become visible, and it is said Blackbird pilots could ...
12
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4answers
1k views

What was the commercial speed of Concorde?

I work on time-space cartography in a historical perspective and need to establish a commercial speed of Concorde aircraft flights based on timetable data. This issue differs from the issue of the ...
12
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6answers
3k views

What are the barriers to feasibility of stratospheric cruising for commercial air travel? (i.e. Concorde?)

In 2003, British Airways retired the Concorde for a few reasons. Rising maintenance costs Lack of demand due to safety concerns Further decrease in demand due to 9/11 attacks additionally, due to ...
11
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1answer
1k views

How big is the influence of color on the stability of the boundary layer?

I'm not sure if this is the best place, or physics.SE would a better place. I guess the aerospace engineers might be on both. In class we were talking about stability of the boundary layer, and the ...
10
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1answer
674 views

What is the history of Concorde motto “May Concorde bring people closer” and medal?

I found this image of a medal figuring Concorde and a globe with two contours of continents, before and after Concorde, expressing the new speed of air transport with a motto "May Concorde bring ...
10
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0answers
2k views

How loud was the Concorde's sonic boom at the ground level? [duplicate]

Before the Concorde was sent into retirement, their supersonic flight paths were restricted to the ocean because of concerns about sonic boom on the ground. But just how loud was this boom? Was it ...
9
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3answers
2k views

Why did Concorde not have horizontal stabilizers?

The Concorde did not have horizontal stabilizers or elevators. As a result, the pilots have to move fuel around the aircraft to trim it up or down, as sluggish and hazardous move. Why did the design ...
9
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1answer
1k views

Where are the locations of the elevators or horizontal stabilizers in a Concorde?

I don't find the horizontal stabilizers or the elevators of a Concorde at the tail section like other aircrafts. Are they fitted beside the ailerons in the wings?
8
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2answers
1k views

What impact did the Concorde have on business of other sub-sonic airliners?

The Concorde was anyways a technical marvel of its time, and a status symbol for society. Its fares were well above the rest, costing USD2999 + taxes for a JFK-LHR journey. But, at the same time there ...
8
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1answer
772 views

Could the Concorde reliably land with all engines out?

The Concorde was designed to fly at supersonic speeds; because of this its delta wings produce more drag at subsonic speeds. My understanding is that delta wings can produce a large amount of lift at ...
7
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3answers
7k views

If the Concorde had an engine fail at cruise altitude, would they enter the coffin corner?

I know the coffin corner is only meant for subsonic aircraft, but if the Concorde is just cruising at Mach 1 and had an engine failure and also lost that afterburner, would it enter a coffin corner ...
7
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1answer
2k views

What are these hexagonal things under the Concorde's neck?

The Concorde had a pair of dark-coloured hexagons under each of its forward boarding doors, as seen in this picture (showing the hexagons on the left side of the Concorde's neck): British Airways ...
6
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3answers
5k views

Why did Air France retire Concorde? [closed]

It was developed by British Airways and Air France in the 1970s as the first supersonic passenger/civilian airplane.
6
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2answers
457 views

How high could Concorde potentially reach by going fast and pulling up?

If Concorde was travelling at mach 2 and FL 600 then pulled up, it would enter a trajectory that went above its normal flight altitude before diving back down. I assume that it couldn't pull up to ...
5
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2answers
1k views

What would have happened when the Concorde's low-pressure emergency system brought it lower mid-flight?

My understanding is that the Concorde was equipped with a system that automatically lowered the aircraft to a safe altitude if cabin pressure was lost. I know such emergency never occurred in its ...
5
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4answers
2k views

Why did the FAA ban all supersonic flights over the United States, rather than only supersonic flight in densely-populated areas?

A major part of why the Concorde was far less of a hit than predicted, and of why the many 1980s and 1990s supersonic transport projects never got off the drawing board, was that the FAA had banned ...
5
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2answers
581 views

Travelling at faster than mach 1, how sharp could Concorde turn to avoid injury to passengers?

To avoid injury to passengers (too many G's) was there a max 'sharpness' of the turns it made when travelling at certain speeds?
5
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1answer
1k views

What protection did the Concorde have against an uncontrolled decompression?

The Concorde's cruising altitude was 60,000 ft. I believe if the cabin ruptured at this altitude, everyone onboard would be almost instantly killed, if not from the Armstrong limit then from hypoxia (...
4
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4answers
7k views

Did Concorde really fly above 55k feet as mentioned in this report?

Here is a report of the last journey of Concorde from JFK-LHR, which mentions "The highest altitude we reached was 58000 feet." Is this height aerodynamically feasible to reach?
4
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1answer
499 views

Could the Olympus 593 have been windmill-restarted during supersonic flight?

The Rolls-Royce/SNECMA Olympus 593 (which powered the Concorde) used a complex intake-ramp system to improve the engine's efficiency and prevent an engine shutdown or failure during supersonic flight ...
4
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1answer
258 views

What might the business model be for a hypersonic jet? [closed]

According to this video, NASA and Boeing are doing research into a new generation of hypersonic passenger planes that can travel at Mach 5. The designs look really cool and I would love to see them in ...
4
votes
1answer
669 views

What were the effects of the oil crises on the Concorde ticket prices?

One of the things that is considered to have greatly hampered Concorde's success were the dramatic oil price increases due to the 1973 oil crisis (the 1979 one surely didn't help either, but it was ...
4
votes
1answer
220 views

What was the speed limitations for droop nose on the Concorde?

Lowering gears or extending flaps comes with limitations. Given the answer of this question I suppose the limit speed for full nose down is about 325 kt. My question is: what were the limit for all ...
3
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2answers
418 views

What's Concorde's engine fan blade tip speed at full thrust?

I can't find anything on the web about the Concorde's Snecma engine fan blade tip speed at full thrust. Any ideas?
3
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1answer
239 views

Concorde thrust reversers engaged on parked aircraft, but not all engines?

Am I correct in interpreting this photo as showing one thrust reverser engaged, while the other is open? Do the thrust reversers fall into place on a fully powered down Concorde? Could this be caused ...
3
votes
1answer
374 views

Why doesn't Concorde stall when passing Mach 1, where a normal airliner does?

As Jay Carr asked: What is a high speed stall?, Jan Hudec explained: A difference from normal stall is that after supersonic flow separation the lift remains proportional to angle of attack and so ...
3
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2answers
2k views

Why is the Concorde, and not other aircraft, getting this fog/condensation, over the wing, at *takeoff*? [duplicate]

Several pictures of the Concorde taking off, show a cloud of water droplets (fog) above the wings. Like this: I assume the fog is created due to low pressure over the wings. But, doesn't the size ...
2
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2answers
743 views

why does the concorde's nose go up and down [duplicate]

I have wondered this when looking at pictures of the concorde and sometimes it was down and other times it was up and why cant the commercial airplanes have this system.
2
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1answer
419 views

What were the Concorde's emergency procedures for an uncommanded droop-nose extension in flight?

The Concorde had a droop nose, which swung down during taxi, takeoff, and (especially) landing, so that the pilots could see where they were going without the long nose getting in the way. During ...
2
votes
2answers
677 views

Would the Concorde have been better off using a tailed delta wing?

In one of the answers to this question about the Concorde's lack of high-lift devices on its wings, it was pointed out that the Concorde, using a tailless delta wing, wouldn't have been able to use ...
2
votes
3answers
1k views

Why is Concorde no longer in service? [duplicate]

The crash of the concorde resulted in many deaths, but the crash was never caused by the concorde but by a plane that took off before it. Also airliners like the Boeing 737,747,and 777 have had ...
2
votes
1answer
630 views

Why didn’t the Concorde have flap-canards like the Tu-144?

One of only two ways of which I am aware in which the Tu-144 was “ahead” of the Concorde1 was in its use of retractable flap-canards, which increased the lift on the front of the aircraft at low ...
2
votes
1answer
132 views

How much the Concorde secondary nozzle contribute to thrust?

Does anybody knows how much did secondary nozzles bucket type on the Concorde's engines contributed to the increase of thrust during take of and sub-sonic flight? This is picture of the nozzles and ...