Archived from groups: microsoft.public.games.zone.simulation (
More info?)
after doing some flight planning in fs2004 here's what i came up with.
on a 155nm trip flight planner assigned my an altitude of 15,000' .
on a 123nm trip flight planner assigned me an altitude of 13,000'. Both
IFR
so 15000 / by 155 = 96.774
so 13000 / by 123= 105.691
so for a quick calculation we'll round of 96.774 and 105.691 to 100 for an
average.
so if i'm in multiplayer and my hop tell me it's 293nm. i'm going to plan to
cruise at fl290 or 29,000' using the first two digits of distance to plan my
altitude.
if it's a 1000nm hop or above service ceiling of aircraft, i quit ! LOL
!!!
done deal, thanks
"me" <me@comcast> wrote in message
news:O4CFVLZiFHA.3448@TK2MSFTNGP12.phx.gbl...
> thanks rob and robert va ,
>
> i realize that there are a number of factors in the real world to
> calculate rate of climb and descent.
> i was looking for a simple solution in fs2004 multiplayer when a hop has
> certain distance to decide what altitude i would load for the ap.
> i will do some research and get back when i find a doable answer that
> applies to fs2004.
>
> thanks again,
> craig
>
> "Rob R. Ainscough" <robains@pacbell.net> wrote in message
> news:eopAPtYiFHA.320@TK2MSFTNGP09.phx.gbl...
>> Could be, but that formula will be specific to an aircraft. In your case
>> the 1.23 will vary by aircraft (cause a Cessna 172 could never maintain a
>> 1800ft/min rate of climb). But in the real world I'd be surprised if any
>> cruise altitudes use hundreds (i.e. FL307) it would round up or down
>> 1000ft i.e. FL300 or FL310.
>>
>> There are formulas for calculating
>>
>>
http://aemes.mae.ufl.edu/~sforza/EAS4700/Climb%20and%20Descent%20Profiles.doc
>>
>> This will contain everything you need to know but the formulas are not as
>> simple as what you have described.
>>
>> Rob
>>
>>
>> "me" <me@comcast> wrote in message
>> news:OpsFRIYiFHA.3960@TK2MSFTNGP12.phx.gbl...
>>> rob,
>>>
>>> i appreciate your input.
>>>
>>> i thought there might be a simple formula like 250nm x 1.23 = fl307 or
>>> something like.
>>>
>>> thanks again,
>>> craig
>>>
>>>
>>> "Rob R. Ainscough" <robains@pacbell.net> wrote in message
>>> news:OOfxbfWiFHA.576@TK2MSFTNGP15.phx.gbl...
>>>>I see, not looking at optimal cruise alt. Lear has a pretty good climb
>>>>rate so for that distance you can use just about any cruise alt you
>>>>like. Definitely want above FL100 if you want to go above 250 knots.
>>>>But the route you take will determine your airway -- i.e. when I fly SFO
>>>>to LAX, I get a higher alt airway vs. going LAX to SFO which is lower
>>>>alt airway. ATC manage the airways, but I don't know what rules they
>>>>apply -- I'd imagine they vary based on weather, volume of traffic, etc.
>>>>etc.
>>>>
>>>> But if you want to apply a rule, use the Lear's standard climbrate,
>>>> assuming a 250 knot speed below FL100 and 300 knot above FL100 -- I
>>>> think the lear's standard climbrate is 1800 ft/min (but I'm sure it can
>>>> do 4000 ft/min without breaking a sweat). So, if my calcs are correct,
>>>> you should be able to hit FL400 within the 250nm distance. But if you
>>>> want optimal fuel usage, then you'll need to factor other aspects.
>>>>
>>>> But I'm not aware of any "standard" formula?
>>>>
>>>>
>>>> "me" <me@comcast> wrote in message
>>>> news:%23L%233UPWiFHA.500@TK2MSFTNGP09.phx.gbl...
>>>>> hello rob,
>>>>>
>>>>> lets say i have a distance of 250nm by looking at the flight
>>>>> planner.
>>>>> what altitude should i use to fly that trip? let's use a lear.
>>>>>
>>>>> thanks
>>>>>
>>>>> "Rob R. Ainscough" <robains@pacbell.net> wrote in message
>>>>> news:OtI46LWiFHA.500@TK2MSFTNGP09.phx.gbl...
>>>>>> not sure I understand, aircraft weight, wind, type, etc. all affect
>>>>>> cruising altitude, as you burn more fuel you'll have a tendancy to
>>>>>> increase cruise altitude
>>>>>>
>>>>>> "me" <me@comcast> wrote in message
>>>>>> news:OFny1IWiFHA.2156@TK2MSFTNGP14.phx.gbl...
>>>>>>> hello all,
>>>>>>>
>>>>>>> i know this subject was brought up before a couple months ago ,but i
>>>>>>> can't find it.
>>>>>>>
>>>>>>> is there a simple formula to calculate your cruising altitude for
>>>>>>> the distance you need to travel?
>>>>>>>
>>>>>>> let's say the aircraft is capable of cruising at fl400 , no wind,
>>>>>>> 29.92 , and we're not worried about weight , just to make things
>>>>>>> simple.
>>>>>>>
>>>>>>> thanks in advance,
>>>>>>>
>>>>>>> craig
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>