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Flight Plan?

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I'm new to AI editing, think I've done everything right, but have the following question based on this flight plan I created:AC#37,N35971,50%,4Hr,IFR,00:30:00,00:35:40,350,F,9460,KSFO,02:15:00,02:20:40,370,F,9461,KATLWhen I compiled the plan, it shows my departure time from ATL as 00:30, even though I set the time as 20:30(GMT). Also, you'll notice the compiled plan shows an arrival time at SFO of 00:35. Obviously the trip takes more than :35 minutes - I read that all times are shown in GMT. What am I doing wrong? My aircraft is showing 482k for the airspeed. Thanks for your help!Chuck in KCAE (Columbia SC)

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First, I assume that you compiled it and then decompiled it before looking at the arrival times. They aren't calculated until you do that.If so, I would guess it's TTools way of freaking out, since you are trying to go from Atlanta to SFO and return in 4 hours! Change that to 12hr or 24hr, and try compiling it again.Hope this helps,-- Tom GibsonCalifornia Classic Propliners: http://members.aol.com/tgfltsim/index.htmlAlcoHauler Locomotive Page: http://members.aol.com/alcohauler/home/alcohaul.htmlFreeflight Design Shop: http://www.freeflightdesign.com/ San Diego Model RR Museum: http://www.sdmodelrailroadm.com/Drop by! ___x_x_(")_x_x___

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Thanks Tom,I changed the time between flights to 12 hours and that helped. However, one more problem. I set the time for departure as 22:00:00, assuming GMT, so that the aircraft would depart at 6pm local. This is what I got back after compiling, and then decompiling:AC#37,N35971,50%,12Hr,IFR,09:59:57,14:05:36,350,F,9460,KSFO,12:00:00,16:05:40,370,F,9461,KATLAny idea why it didn't give me the 22:00 that I asked for?Chuck

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>Thanks Tom, >>I changed the time between flights to 12 hours and that >helped. However, one more problem. I set the time for >departure as 22:00:00, assuming GMT, so that the aircraft >would depart at 6pm local. This is what I got back after >compiling, and then decompiling: >>AC#37,N35971,50%,12Hr,IFR,09:59:57,14:05:36,350,F,9460,KSFO,12:00:00,16:05:40,370,F,9461,KATL >>Any idea why it didn't give me the 22:00 that I asked for? >>Chuck Because you specified a 12 hour plan... :) If you want the a/c to depart at a specific time, you need to set it for 24Hr. At present, the a/c will depart twice from KATL, once at 09:59:57, and again at 21:59:57...

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That did the trick!I'm still learning... thanks everyone for your help.Chuck

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Keep in mind that a single round trip with a 24 hour repeat is not generally a good idea, since the plane will spend most of the day on the ground somewhere taking up a valuable parking spot. Either add more legs to the plan, or shorten up the repeat time so it spends the least amount of time on the ground (and thus it will make multiple trips, just like when you had it set to 12 hours).I generally try to add as many legs to my 24 hr plans as possible, to minimize ground time. Of course, this is how the real airlines do it, but usually over the space of a week or even several weeks. You can simulate this with WEEK plans, but they can be tricky to set up.Hope this helps,-- Tom GibsonCalifornia Classic Propliners: http://members.aol.com/tgfltsim/index.htmlAlcoHauler Locomotive Page: http://members.aol.com/alcohauler/home/alcohaul.htmlFreeflight Design Shop: http://www.freeflightdesign.com/ San Diego Model RR Museum: http://www.sdmodelrailroadm.com/Drop by! ___x_x_(")_x_x___

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Hi Chuck,If I understand Lee's docs correctly, I think you might be missing one important part of the equation. AI Flight Plans are always scheduled on a 24 hour basis beginning with the first flight after midnight ***GMT*** time.If you schedule a flight to begin at 23:00 GMT and the flight time is any reasonable length then only one flight will be flown. That is because after it passes midnight into the next day the flight plan is no longer flown. There will be no repeat of that flight until 23:00 GMT the next day. For example, with the following Flight Plan of 1.5 hours one way and 30 min layover, this would be the schedule:23:00 Depart Leg 101:00 Depart Leg 203:00 (into next day so end of flight plan)Therefore, as a general rule, most flight plans should be scheduled to begin some time in the early AM hours shortly after midnight--say 01:00 GMT etc. Then there will be most of the rest of the 24 hour period for repeats to take place as would be expected.Thus, if you want a flight to begin at say 22:00 (GMT) and it will work out to be say a 1.5 hour flight one way and a 4Hr Repeat pattern (allows 30 min for taxi time, layover, etc. for each leg), you need to schedule it to begin at 02:00 hours. Then you will get a schedule such as the following:02:00 Depart Leg 104:00 Depart Leg 206:00 Depart Leg 108:00 Depart Leg 210:00 Depart Leg 112:00 Depart Leg 214:00 Depart Leg 116:00 Depart Leg 218:00 Depart Leg 120:00 Depart Leg 222:00 Depart Leg 1 (here is your target flight at 22:00)00:00 (into next day so end of flight plan)This maximizes the time in the air and minimizes time the aircraft will monopolize a gate.Then still keep in mind all these times are GMT. So if you are talking about KATL with -5 hours adjustment from GMT, then the resulting KATL EST local time schedule would be:21:00 Depart Leg 111:00 Depart Leg 201:00 Depart Leg 103:00 Depart Leg 205:00 Depart Leg 107:00 Depart Leg 209:00 Depart Leg 111:00 Depart Leg 213:00 Depart Leg 115:00 Depart Leg 217:00 Depart Leg 119:00 (into next day--GMT--so end of flight plan)And also remember that this still does not take into consideration the extra hour difference for daylight saving time either. Nor does it take into consideration what the local time will be at the other end of the flight if the destination is in a different time zone or any adjustment for daylight saving time there as well.As you can see, it can get very complicated in a hurry! :) There are many layers of factors that need to be considered.Happy Flying!Bill MolonyAtlanta GA USAUnder the 27L Approach to KATL--the busiest airport in the world :)

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Thanks to Bill, and everyone else.I follow what you've been posting, and it all makes perfect sense. The documentation that comes with TTools doesn't go into all that detail, but now things are becoming clear.Bill, my wife wouldn't care for it, but I sure wouldn't mind being under one of the approach paths for KATL. :-) Chuck

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