"Rules of Thumb"
"Rules of Thumb"
Bank angle required for a rate one turn 7+(IAS/10)Join Date: Oct 1999
Location: Melbourne - Australia
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This was asked about 2 months ago and one of the interesting urls was:
http://www.flightinfo.com/html/rules_.shtm
http://www.flightinfo.com/html/rules_.shtm
Guest
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top of descent point- (flightlevel x 3) + 10 miles. eg FL350, (35x3)+10 = 115 miles.
B747 fuel requirements- estimated flight time to destination x 12 (-100), 11 (-200/300), 10 (-400) + your diversion requirement + 2500kg taxi/APU allowance.
These always work out to within a % or so of the computer generated plans value. Nice to know!
B747 fuel requirements- estimated flight time to destination x 12 (-100), 11 (-200/300), 10 (-400) + your diversion requirement + 2500kg taxi/APU allowance.
These always work out to within a % or so of the computer generated plans value. Nice to know!
Guest
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If not at half take-off speed by 1/3 of runway length start worrying. If not airborne by 2/3 runway length, abort.
Always assume that anybody flying a Piper or Cessna can't see you.
Never assume that you'll be given anything better than a FIS, no matter how much you beg.
Any aircraft designed in the USA will need the wing re-inforcing for UK approval.
Any aircraft designed in France will need the flying controls strengthening before UK approval.
Any aircraft designed in Germany will need to lose about 30kg before UK approval.
Any military customer will move the goalposts at least once every 2 months before completion of the project.
G
Always assume that anybody flying a Piper or Cessna can't see you.
Never assume that you'll be given anything better than a FIS, no matter how much you beg.
Any aircraft designed in the USA will need the wing re-inforcing for UK approval.
Any aircraft designed in France will need the flying controls strengthening before UK approval.
Any aircraft designed in Germany will need to lose about 30kg before UK approval.
Any military customer will move the goalposts at least once every 2 months before completion of the project.
G
Guest
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Another descent one which factors in groundspeed...
Observe groundspeed, add a '0' then half it, this figure becomes your VS for the descent which is commenced at a distance from destination of 3x height:
eg. 23,000' at 400 kts G/S = A descent rate of 2000 fpm commenced at 69 nm from destination. Remember to adjust VS for any increase in G/S during descent, and factor in a few miles to slow down at the end.
Observe groundspeed, add a '0' then half it, this figure becomes your VS for the descent which is commenced at a distance from destination of 3x height:
eg. 23,000' at 400 kts G/S = A descent rate of 2000 fpm commenced at 69 nm from destination. Remember to adjust VS for any increase in G/S during descent, and factor in a few miles to slow down at the end.
Guest
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Fairy, Big Hands, havnīt you 
- The longer the logbook entry, the simpler the fault.
- If it ainīt fĪ%%&d, donīt fix it
- If it works, itīs not allowed
- If itīs grumpy, argumentative and rude, Itīs your freindly ground engineer.
Sorry, Iīm not a pilot, so I thought I would contribute some from the dark side.
Brgds
Doc
- The longer the logbook entry, the simpler the fault.
- If it ainīt fĪ%%&d, donīt fix it
- If it works, itīs not allowed
- If itīs grumpy, argumentative and rude, Itīs your freindly ground engineer.
Sorry, Iīm not a pilot, so I thought I would contribute some from the dark side.
Brgds
Doc
Guest
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Bus journeys from the airport to hotel are measures in "Beiraes" (pronounced "beers"). A one beirai journey is about 12-15 mins, a two beiraes trip 25-35 mins and I don't know of any 3 beiraes journeys due to BALPA regs on our distance from slip hotels.
A two beiraes trip on a weekday evening can be equivalent to a one beirai on a Sunday.
Once day I'll fathom it out and post the exact conversion for beiraes > minutes > kilometres here on PPRuNe.
Rod
[This message has been edited by EDDNR (edited 07 April 2001).]
A two beiraes trip on a weekday evening can be equivalent to a one beirai on a Sunday.
Once day I'll fathom it out and post the exact conversion for beiraes > minutes > kilometres here on PPRuNe.
Rod
[This message has been edited by EDDNR (edited 07 April 2001).]
Guest
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Descent planning III:
When performing a CDA, ATC gives you "Trackmiles" to go:
groudspeed : 60 = X,
trackmiles : X = Y,
current altitude : Y = descent rate.
For example, assume a groundspeed of 360 kts at FL150 and you have 30 NM till touchdown;
360 kts : 60 = 6 NM/min,
30 NM : 6 Nm/min = 10 min,
FL150 : 10min = 1500 fpm.
(Adjust for changes in groundspeed off course)
When performing a CDA, ATC gives you "Trackmiles" to go:
groudspeed : 60 = X,
trackmiles : X = Y,
current altitude : Y = descent rate.
For example, assume a groundspeed of 360 kts at FL150 and you have 30 NM till touchdown;
360 kts : 60 = 6 NM/min,
30 NM : 6 Nm/min = 10 min,
FL150 : 10min = 1500 fpm.
(Adjust for changes in groundspeed off course)
Guest
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Start your rollout half of your bank angle before your desired heading.
Start your level off ten percent of your roc/rod before your desired altitude.
Halve your groundspeed then multiply by ten for a good rod on the ILS.
Very quiet passengers are sick, scared, sleeping or dead.
Start your level off ten percent of your roc/rod before your desired altitude.
Halve your groundspeed then multiply by ten for a good rod on the ILS.
Very quiet passengers are sick, scared, sleeping or dead.