Europe, India, Africa, Asia god knows where..

It has been a really long time.. am so sorry.. have been working so hard recently, all night flights and sleeping during the day so you guys understand how my body clock is swinging between times.. before that i was working on a conference and i had no time for myself since then... anyway i am alive in one piece and happy thank god that's all matters i believe.. yes i lost my lovely baby "my car" in an accident so i have no car at the moment. i know i know its just a lot for one human being to consume but "what to do?" as my Indian crew said in his funny Indian accent which i am so good at by now hahaha..

i was trying to explain a descent profile to my friend. i promised him that i will post it online so he can copy it. i hope this will help mate:

A normal, fuel efficient, descent path for a medium size airliner is 2.5 to 3 miles per 1000 feet of altitude. If you are looking at an altitude loss of, say 20,000 feet, then you would need 60 ( 3 x 20 ) miles to lose that altitude. If you must decelerate to meet an assigned speed at the intersection, then you need to allow one (1) mile distance to lose 10 knots of airspeed. Losing 50 knots would take 5 miles. So, we have 60 + 5= 65. That is the base distance to lose 20,000 feet and slow 50 knots. There are a few adjustment factors to keep in mind:

1. Tailwinds increase distance about 2 miles per 10 knots of windspeed. Headwinds decrease distance, but you must be careful. Remember, you have given the controller your assurance that your aircraft will be out of his way at that virtual point in space. How do you know what the windspeed and direction will be during the descent? I use the WAG method honed by years of experience.

2. Anti-icing increases the distance because the engines must increase power to supply the hot air to all of the users, like engine anti-ice and wing anti-ice. You need to allow about 2 miles per 1,000 feet of anti-ice use.

3. use the Three thousand pounds of hydraulic pressure which will shove the spoilers up into the slipstream, and down you go..

4. use 25-5000 50-10000 75-15000 100-20000 somehow + - the wind it will work. hehehe..

i have just came home from a four days trip.. a lovely hotel but not a nice place to be.. anyway, i will cut it short as my body is drained of the caffeine and i need to be in bed..









03.19.07 @ 06:06 AM UAE 4 Comments