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| Thread ID: 150767 | 2022-07-02 06:22:00 | For Aircraft Enthusiasts | bellbird (6169) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1487178 | 2022-07-15 05:11:00 | www.youtube.com A few minutes of fun listening to Air Traffic Control/Pilot conversations. | bellbird (6169) | ||
| 1487179 | 2022-07-20 22:22:00 | An interesting aspect about aircraft in WW2 - bombers in particular - was the explosive vapour that built up in the fuel tanks as the fuel was being consumed. If the fuel tanks were hit by flak the vapour would explode downing the aircraft. The solution was to introduce an inert gas - in this case nitrogen - into the fuel tanks to displace the vapour which included oxygen and therefore eliminate the chance of the vapour causing an explosion. That is something that is still in use today, particularly in oil tankers where the vapour in the hold could cause an explosion if something caused a spark. It is also notable that the oil tankers deck is painted white to help reflect the sunlight and minimise the forming of vapour. I just thought that you would like to know. |
Roscoe (6288) | ||
| 1487180 | 2022-07-20 22:34:00 | Thanks Roscoe. It is interesting, I may google more about that. Something to do on this stormy day. | bellbird (6169) | ||
| 1487181 | 2022-07-20 23:14:00 | An oldie but a goodie HERE (www.youtube.com) | B.M. (505) | ||
| 1487182 | 2022-07-30 01:51:00 | I understand why aircraft need to take off into the wind and usually - like at Auckland Airport - they take off and land in the same direction, but do they need to land into the wind? There is only one runway at Auckland so they obviously need to take off and land in the same direction but what about an airport like London Heathrow? They have two runways and so could take off and land in opposite directions. Beijing has 9 runways and Atlanta has 5 so I suppose they could also land and take off in opposite directions. I wondered if the reason was to have all the aircraft flying in the same direction so they don't bump into one another. Is that correct? So apart from that, do they need to land into the wind? | Roscoe (6288) | ||
| 1487183 | 2022-07-30 02:15:00 | Aircraft always take off and land into the wind. The active runway is designated to always achieve this, parallel runways are also used at large airports. This provides the shortest takeoff and/or landing distance. It also prevents them from meeting head on in the middle which makes for happy passengers. | CliveM (6007) | ||
| 1487184 | 2022-07-30 02:30:00 | Aircraft always take off and land into the wind. The active runway is designated to always achieve this, parallel runways are also used at large airports. This provides the shortest takeoff and/or landing distance. It also prevents them from meeting head on in the middle which makes for happy passengers. Thank you for that, Clive. But apart from the fact that they don't want them to bump into each other, is there another reason why they land into the wind or could they land with a tail wind? |
Roscoe (6288) | ||
| 1487185 | 2022-07-30 04:42:00 | Thank you for that, Clive. But apart from the fact that they don't want them to bump into each other, is there another reason why they land into the wind or could they land with a tail wind? It is fairly simple if you think about it. If the safe landing speed of say a light aircraft is 60 mph that speed is the maximum speed it should touch down at on the runway. The pilot will achieve that speed by slowing down to 60 mph while in the air. In perfectly still air if he is at 60 mph in the air the plane lands doing 60 mph on the ground. Now if he is flying into a 20 mph head wind the plane will land at a ground speed of 40 mph, 60 mph - 20 mph, that is not a problem. However if flying with the 20 mph wind behind him he will land at a ground speed of 80 mph, 60 mph + 20 mph, which could be a major problem. The higher the landing speed the longer runway distance is required to stop the plane safely. Keep in mind that the speed in the air relative to the ground is dependant on the speed of the air, wind speed. Cross winds when landing can present a whole lot of other problems to landing safely. |
CliveM (6007) | ||
| 1487186 | 2022-07-30 04:49:00 | ...... and if it were landing on a convertor belt? Ken :) :) |
kenj (9738) | ||
| 1487187 | 2022-07-30 04:52:00 | ...... and if it were landing on a convertor belt? Ken :) :) A convertor belt? |
CliveM (6007) | ||
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