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Search: Posts Made By: Black Baron
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Forum: Tech Log
7th Dec 2003, 08:52
Replies: 57
Views: 10,428
Posted By Black Baron

Boeing 767 -300 cf6-80 brw 150 tonnes climb...

Boeing 767 -300 cf6-80
brw 150 tonnes
climb to FL 370

ISA +10> clb / 18 minutes over 115 miles

ISA +10> clb 2/ (reduced climb) 21 minutes over 132 miles

ISA...
Forum: Tech Log
6th Dec 2003, 14:20
Replies: 57
Views: 10,428
Posted By Black Baron

You are correct that if thrust is constant, and...

You are correct that if thrust is constant, and TAS increases through temperature then angle remains constant, and rate increases.

If you were talking rocket engined aircraft this would be usual....
Forum: Tech Log
5th Dec 2003, 05:25
Replies: 57
Views: 10,428
Posted By Black Baron

Thankyou Dorset , excellent post. Not sure...

Thankyou Dorset , excellent post.
Not sure about the climb gradient questions hawk, surely the figures for distance to top of climb represent the gradient?
:ok:
Forum: Tech Log
4th Dec 2003, 06:47
Replies: 57
Views: 10,428
Posted By Black Baron

From the tables for a Boeing 767-300 with GE...

From the tables for a Boeing 767-300 with GE CF-80 turbofans
CLB 2 (reduced thrust climb power)
weight 160 tonnes
climbing for Fl 370
ISA +10 and cooler 24 mins, 151 nm
ISA + 15 27 mins, 177...
Forum: Tech Log
3rd Dec 2003, 22:49
Replies: 57
Views: 10,428
Posted By Black Baron

To achieve the same CAS on a hot day as opposed...

To achieve the same CAS on a hot day as opposed to a cold day, you will have a greater ground speed.
Greater groundspeed equals longer take off run, and a greater distance to achieve the same...
Forum: Tech Log
3rd Dec 2003, 21:56
Replies: 57
Views: 10,428
Posted By Black Baron

The effect of increasing temperature is the same...

The effect of increasing temperature is the same as increasing altitude.

The aircraft will have travelled a lesser distance on a cold day, in the same time span, yet has produced the same...
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