Community Discussion > Flight Operations

Propilot & time compression:

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EHM-2470 kivanc:

--- Quote from: EHM-1001 Robert on July 21, 2009, 08:02:12 pm ---I think time compression is not forbidden, it is only not advised. Perhaps I do not know clearly the rulebook, but I used to fly with x4 speed over the Ocean (only offline !!!) with ProPilot and I have never been penalized for that. It is crazyness to use compression during climb or descend because anything can happen that you need to react immedately, but it is possible to use on cruise... correct me if I was wrong. ;)

--- End quote ---

Advise (it seems like) or not, it is not a problem of words here, the statement is this from 4.6 Regulations:

 '*4.6 Regulations*
....
It’s permitted to fly _at a simulation rate of 2x, 4x… as you have to submit your PC time_. For
example, if you’ve flown an 8-hour London – New York flight with 4x time compression in 2

hours, please report only those 2 hours!

/We’d like to know how much time you actually spend

flying for EuroHarmony

/. Note that if you fly online (VATSIM, IVAO), it is not possible to use

time compression.

...

You are not allowed to save a flight and continue it later as flights have to be reported only

via one pirep. _If you don’t have time for longer flights, use time compression,_ or fly shorter

ones...
'
Well,
Robert, I do not think that using any feature of sim. at any time is crazyness or wise-ness. If the conditions are sufficient they could be used in any need. It is not permitted in online since the reference frame should coincide for all users at every instant. Besides that the speed of time applied during the flights is a relative quantity, one could be slow for me for a reason and that is crazy for you (Let me tell if pilot  should leave the flight in say ten min. in the middle of a 5 hours flight, time compression would work well even at the decent). Actually, I conclude this feature as a calculation  error of flightlogger which should be repaired.  

EHM-1001 Robert:
Okay okay, I wrote crazyness because I lived through many "bugs" of the simulator together with the airplane which would lead me an immediate crash under 4x time compression. You are right, you can do anything, but as a pilot you should consider that sudden things can happen at a dynamic part of the flight: climb or descend. Of course weird things can happen during cruise, but much less frequently. For example a sudden wind change or a scenery bug can anytime kick off your autopilot or FMC/FMS, that is almost "normal". But during the climb and descend you must have more control on the things to happen smoothly - not to mention PP penalties which are hardly possible to avoid under time compression.

All in all with a pilots thinking, it is technically "possible" but logically "forbidden" ;)

EHM-1438:

--- Quote from: EHM-1001 Robert on July 22, 2009, 08:45:44 pm ---you should consider that sudden things can happen
--- End quote ---

It all depends on the aircraft model you use (how good and trustworthy it is) and how well you know it. As I fly mostly POSKY and IFDG, having hundreds of hours in their models, I find it easy to react even in 4x. However I believe that POSKY and IFDG are much more trustworthy than most payware models out there and I could share funny stories but it is not the subject here. As a conclusion I would suggest to keep the time compression at 1x at least during takeoff and 2-3 minutes after and also 1-2 minutes at least before the final approach.

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