Bill Bridges - 9S1
(Top Gun)
01/27/14 10:45 PM
Flight Plan Reserves - B738 FMS



The Smith FMS (B738) asks for the RESERVES on the PERF INIT on page 1. Based on the flight plan above what would be the Reserves?

the other bill


sreyoB yrraL
(AVSIG Member)
01/27/14 11:11 PM
Re: Flight Plan Reserves - B738 FMS

Quote:

The Smith FMS (B738) asks for the RESERVES on the PERF INIT on page 1. Based on the flight plan above what would be the Reserves?



International Reserve (10 PCT) + Alternate (ALTN) + Hold fuel (INTL HOLD)

In this case, enter 6.4 into the FMS.

This is the minimum fuel at your arrival airport. When the FMS projects arriving will less than this amount it will give an "INSUFFICIENT FUEL" FMC message.

The additional ETOPS fuel (ETP ADD) is confusing in this situation because it is required fuel at takeoff but is no longer required fuel at landing because, by then, the ETOPS segment is over. The reason you need additional ETOPS fuel is that an ETOPS diversion requiring descent (such as a loss of pressurization) will require significantly more fuel than the crossing at normal altitude.

BTW, you need to offload a couple of passengers. The ramp fuel is planned at 43.012 which is only 2 pounds of extra fuel and puts you at your max takeoff weight. The fueler can't fuel the "12" pounds as the gauges only display "43.0" so you're either don't have the required fuel or are overweight for takeoff. :)


Bill Bridges - 9S1
(Top Gun)
01/27/14 11:21 PM
Re: Flight Plan Reserves - B738 FMS

Larry,

Thanks for taking the time to explain this to me.

I didn't know about the "43.0". :-))

the other bill


sreyoB yrraL
(AVSIG Member)
01/28/14 12:10 AM
Re: Flight Plan Reserves - B738 FMS

Quote:

I didn't know about the "43.0".



Sure you did. Just look at the (simulated) fuel panel. :)


Jeff Hartmann CIC
(Top Gun)
01/28/14 07:31 AM
Re: Flight Plan Reserves - B738 FMS

Bill,
Your not under the influence of some simulated alcohol RU?

If so, you may simulate a 12 hour delay until departure....


Mac Tichenor (DAL)
(Top Gun)
01/28/14 10:20 AM
Re: Flight Plan Reserves - B738 FMS

I am amazed at the level of detail and, apparently, fidelity with the real thing.

Mac


Jeff Hartmann CIC
(Top Gun)
01/28/14 10:55 AM
Re: Flight Plan Reserves - B738 FMS

Mac,

And yet, you need a passport and clearance to fly the "real " Sim....


sreyoB yrraL
(AVSIG Member)
01/28/14 11:35 AM
Re: Flight Plan Reserves - B738 FMS

Quote:

I am amazed at the level of detail and, apparently, fidelity with the real thing.



Yeah, it looks just like a part 121 ETOPS release.


Bill Bridges - 9S1
(Top Gun)
01/28/14 02:10 PM
Re: Flight Plan Reserves - B738 FMS

I just showed the first page, there are six pages total. :-))

the other bill


sreyoB yrraL
(AVSIG Member)
01/28/14 02:17 PM
Re: Flight Plan Reserves - B738 FMS

Quote:

I just showed the first page, there are six pages total. :-))



Only six? That doesn't include the weather and NOTAMs, then...


Richard Duxbury (Dux)
(Top Gun)
01/29/14 10:38 AM
Re: Flight Plan Reserves - B738 FMS

Well sometimes fuel planning was sorta easy with a B-747 non stop from JFK to Narita in winter. Full tanks, remove passengers/cargo to get under 814,000 lbs at takeoff. (about 365,000 lbs of fuel). Of course we all knew we were heavier than the official final weight figures of 813,412lbs.

Then hope the flight plan was OK and got you with 30,000 lbs at top of decent some 13-14 hours later. Also helped if you could cut across a bit of Russia.

New planes and engines make some of this stuff moot today I assume.

Regards,

Dux , no artic freeze today in Tucson, sunny and 75 degrees.



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