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FM/DM threads Everything about FM/DM in CoD

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  #1  
Old 06-12-2012, 07:06 PM
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Quote:
Conditions are everything in aircraft performance. That fact is very much on your mind when piloting a real aircraft.

Every take off you calculate V1,V2, Vmcg, Vr, BFL and as well as acceleration checks. All are effected by density altitude.
Rubbish, real pilots only have to calculate how much rest they earn at the end of the duty period and pray they don't end up on a split-shift, I pitty the poor guy that has to go into the Flight Manual and work this stuff out instead of having it ready in tabular abridged form on the checklists based on T/O weight and temparature or in fact have the entire performance schedule handed to him by operations who worked it out for him, occasionally with GA operations there are times when you will dust off the Flight Manual if a customer has an unusual destination.

you failed to notice nobody argued 'against' the density altitude but you did go on and on and on about it like it was a 'eureka' moment.

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Now that the atmospheric conditions are known, conclusions can be made about specific aircraft performance.
You're welcome.
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Last edited by bongodriver; 06-12-2012 at 08:06 PM.
  #2  
Old 06-13-2012, 02:18 AM
IvanK IvanK is offline
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Great stuff Bongodriver on the Thermal factor setting. Any idea if this affects pressure as well ?
  #3  
Old 06-13-2012, 03:36 AM
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Rubbish, real pilots only have to calculate how much rest they earn at the end of the duty period
Yeah....OK......

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you failed to notice nobody argued 'against' the density altitude
I did not fail to notice about 3 other "performance" threads appeared without finding out what the atmospheric conditions.

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Still waiting for the evidence you are what you claim to be.
I think it is pretty self evident....read the last few pages of this thread.

Quote:
Crumpp says:
V1,V2, Vmcg, Vr, BFL and as well as acceleration checks. All are effected by density altitude.
Quote:
Bongo says:
with GA operations
You don't even know what V1,V2, Vr, and BFL are do you?

Back to ignoring you.

Last edited by Crumpp; 06-13-2012 at 03:50 AM.
  #4  
Old 06-13-2012, 08:26 AM
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You don't even know what V1,V2, Vr, and BFL are do you?
GA is the all encompassing term for anything 'not airline', basically the Learjet is a GA aircraft here in Europe and to be honest I thought it's the same in the states, another indication you don't really have anything to do with the industry.

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I think it is pretty self evident....read the last few pages of this thread.
Yes, you are still using a good textbook.

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Back to ignoring you.
Sure.
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Last edited by bongodriver; 06-13-2012 at 10:13 AM.
  #5  
Old 06-13-2012, 08:32 AM
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Originally Posted by IvanK View Post
Great stuff Bongodriver on the Thermal factor setting. Any idea if this affects pressure as well ?
Didn't check that, the test was started from 1000 feet on 1013mb in both cases and it didn't look wildly different, the surface temps were projected based on the linearity of the test results.
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  #6  
Old 06-13-2012, 12:04 PM
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Quote:
Bongo says:
'not airline',
I had to respond, it is just too rich!!

You need a shovel for the hole you are digging!!

It is a Part 121 regulation. Part 121 is the airlines......

Quote:
Flight operations are often referred to by the part of the regulations that governs them. So, large operators such as American Airlines, Delta Air Lines, Federal Express, Southwest Airlines, and United Airlines are typically referred to as Part 121 carriers.
http://www.nap.edu/openbook.php?record_id=12795&page=56


Quote:
Part 121 - OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS
http://www.risingup.com/fars/info/121-index.shtml


Quote:
Sec. 121.189 — Airplanes: Turbine engine powered: Takeoff limitations.
Quote:
The accelerate-stop distance must not exceed the length of the runway plus the length of any stopway.
http://www.risingup.com/fars/info/part121-189-FAR.shtml

Quote:
V1 concept is critical to takeoff planning. The FARs require the flight crew of a transport-category airplane to ensure that the runway intended for use (including any clearway or stopway off the end of the runway) is long enough to allow the takeoff to be safely continued or rejected from a predetermined go/no-go point on the runway. The go/no-go point is where the airplane reaches V1 while accelerating for takeoff
http://www.ce560xl.com/Blackberry/Ba...eldLength.html

Dispatch and the PIC both have to sign the release and the flight plan. You are both jointly responsible for the planning. If you are not doing the planning, you will not catch mistakes and they do happen. In short, you are not doing your job and will be held responsible for not doing your duty as PIC.

Last edited by Crumpp; 06-13-2012 at 12:06 PM.
  #7  
Old 06-13-2012, 12:05 PM
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Quote:
1000 feet on 1013mb
Sea level pressure at 1000 feet......
  #8  
Old 06-13-2012, 12:24 PM
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Originally Posted by Crumpp View Post
Sea level pressure at 1000 feet......

No, flying at 1000 feet with 1013 set on the altimeter......you know 1013....standard setting.......QNE.....the pressure pilots set in order to fly at flight levels..

Seriously Crumpp, just scan a copy of your license and I will get off your back, I will be horrified at the thought you are qualified but I will lay off.
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  #9  
Old 06-13-2012, 12:43 PM
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Quote:
Bongo says:

pmsl......
Wow, that shovel is getting worn. Why don't you read your sig a few times. The part right under my name.

Let's read what you are laughing about. Only pull out your english dictionary this time.

Quote:
General aviation (GA) refers to all flights other than military and scheduled airline/cargo flights, both private and commercial.
Is english your second language?

That is a real hinderance when you surf around the internet looking for answers.

As a part 121 PIC, you have to plan V1,V2, Vr, and BFL. That means airline pilot or any flight other than cruising around for 100 dollar hamburgers or cool shopping places to take the wife so she won't bitch about the annual.

Quote:
No, flying at 1000 feet with 1013 set on the altimeter
Ok, being at 1000 feet with the altimeter set to 1013 is different from setting sea level pressure at 1000ft true altitude.
  #10  
Old 06-13-2012, 12:20 PM
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bongodriver bongodriver is offline
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Quote:
Originally Posted by crumpp View Post
i had to respond, it is just too rich!!

you need a shovel for the hole you are digging!!

it is a part 121 regulation. part 121 is the airlines......



http://www.nap.edu/openbook.php?record_id=12795&page=56




http://www.risingup.com/fars/info/121-index.shtml






http://www.risingup.com/fars/info/part121-189-far.shtml



http://www.ce560xl.com/blackberry/ba...eldlength.html

dispatch and the pic both have to sign the release and the flight plan. You are both jointly responsible for the planning. If you are not doing the planning, you will not catch mistakes and they do happen. In short, you are not doing your job and will be held responsible for not doing your duty as pic.

pmsl......

http://www.aopa.co.uk/index.php?opti...568&Itemid=559
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Last edited by bongodriver; 06-13-2012 at 12:27 PM.
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