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Performance Calculations (Takeoff, Landing) in SD


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thomas.fischer2018
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I know it's been discussed before, but I still don't understand why this feature is not implemented yet.

The manual calculation of the takeoff and landing distance is relatively timeconsuming, annoying, and it can be 95% automated as shown by other apps or competition software like Flight Planner. In Germany it is mandatory to do this and document it (at least for insurance reasons it's advisable).

Calculation of the takeoff and landing distance (and perhaps climb performance) depending on 
- airport elevation
- temperature 
- pressure 
(or the density altitude)
- wind direction & speed at the time of departure or arrival
- weight (from weight & balance calculations) at the time of departure or arrival
- runway condition (inclination, grass, and user answered parameters like wet or not, active runway selection)
- aircraft profile 
- user specific safety margin
would be a great feature, both for planning in advance as well as during in-flight.

Aircraft performance profiles could be edited and shared by users for the most common aircrafts like Cessna 172 etc.
The map could be filtered for airports that have long enough runways, also in case of an emergency to find a field nearby. Or it could show on the warnings tab if the the calculated length is shorter than the landing distance available.

I love SkyDemon, but i would like to get rid of these other apps that i need to calculate those distances for me....

Edited 11/9/2018 3:07:08 PM by thomas.fischer2018
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Daniël Klijnsma
Daniël Klijnsma
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Reading through this thread, I am not sure why one would want Performance Calculations in SD. You cannot throw away your POH or AFM anyways. These are the binding documents to use when you operate an aircraft. SD or other apps are there only to support you on your flights. But they do not supersede the documentation that comes with the plane, right? And if you don't know the TO / LD performance of the plane you are flying, it is high time to open u these documents before the next flight.

In the end it all seems to boil down to responsibility / insurance if something would go wrong during TO/LD. And this is simple: the PIC is responsible for any flight maneuvers, also for TO/LD. If your engine does not get the proper revs at TO you abort. And if your brakes fail on LD, no calculation will help you anyways. Come on boys and girls, we still fly in real life, not in a simulator game!

Daniël

BJS
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Daniël Klijnsma - 10/6/2021 7:20:58 AM
Reading through this thread, I am not sure why one would want Performance Calculations in SD. You cannot throw away your POH or AFM anyways. These are the binding documents to use when you operate an aircraft. SD or other apps are there only to support you on your flights. But they do not supersede the documentation that comes with the plane, right? And if you don't know the TO / LD performance of the plane you are flying, it is high time to open u these documents before the next flight.

In the end it all seems to boil down to responsibility / insurance if something would go wrong during TO/LD. And this is simple: the PIC is responsible for any flight maneuvers, also for TO/LD. If your engine does not get the proper revs at TO you abort. And if your brakes fail on LD, no calculation will help you anyways. Come on boys and girls, we still fly in real life, not in a simulator game!

Daniël

Yes, but the trend goes to fully nanny brain dead systems. Just look where it brought us in cars, where they started to collect all that data and derived a 'safety system', which in my experience applies a double dumb ass factor for the stupidest driver - not the 'typical pilot' stated in usual POH -, making many systems virtually unusable (or better to say: if nature would work that way, we never would have had anything like evolution). Same effect we have, in part had, in aviation -> many modern safety systems are made more for push button pressing monkeys, and such you can automate later as nobody with biological brain would act like that ;-).

One thing we learned from the latest pandemic is the leaning towards full cover insured life = no risk, no responsibility not to talk into accountability, always technology to blame nor people neither never myself, depersonalization of anything threatening the rainbow illusional world of modern thinking.

T(O and LD calculations are one last resort where brain action is required and I am happy for it.

GO

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thomas.fischer2018 - 11/9/2018 2:18:33 PM
Mastering Aviation - 2/22/2021 3:46:31 PM
C401 - 2/24/2021 12:50:17 AM
     Seconded!
jaimebeneyto - 3/1/2021 2:21:42 PM
jbmoens - 3/7/2021 5:47:20 PM
grahamb - 3/7/2021 6:25:36 PM
PaulSS - 3/8/2021 8:57:07 AM
pilot-byom - 3/8/2021 9:15:58 AM
erchegyia - 6/16/2021 12:37:11 PM
Tim Dawson - 6/16/2021 1:31:16 PM
erchegyia - 6/16/2021 6:01:58 PM
Martin Bech - 6/16/2021 6:53:18 PM
pilot-byom - 6/17/2021 6:40:11 AM
Tim Dawson - 6/17/2021 9:39:34 AM
moefly - 9/12/2024 6:55:16 AM
Cheeseman1112 - 10/6/2021 7:20:58 AM
BJS - 10/8/2021 6:51:16 AM
Tim Dawson - 9/12/2024 9:56:34 AM
moefly - 9/12/2024 11:09:19 AM
Tim Dawson - 9/13/2024 9:16:31 AM
             +1
Sky Painter - 9/13/2024 10:36:19 AM
fabria - 9/13/2024 11:59:33 AM
wdobe - 1/26/2025 3:15:00 PM

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