Whats with the cargo amount?

[Miikoyan]

http://flynet.turksim.org/index.php5?st ... 759&p=4583

Is this because of the new MTOW restrictions?

[joefremont]

This is because of the passengers baggage, each pax is assumed to have 25kg of luggage with them.

[Quantum]

Hi,

MTOW is not a factor, it's the MZFW which restricts the payload. Hopefully in the not too distant future the MTOW will also become a factor but we'll need the facility to remove payload before that happens. As Joe says, FlyNET allows 25kgs per passenger for baggage allowance.

MZFW - DOW = available payload.
Available payload - weight of pax/baggage = cargo load

There are instances with some aircraft where the weight of passengers and baggage exceeds the available payload but FlyNET can't adjust that yet. For some flights, using the above calcs a lot of aircraft wouldn't be able to carry the fuel for the sector unless the payload is reduced. I am hopeful that some time soon we will be able to make payload adjustments so that the Client will not allow an aircraft to depart if structural weights are exceeded. This will make aircraft operations on FlyNET much more realistic.

Regards

John

[Miikoyan]

Oh....
Ok.

[Mostafaa747]

Hi,

MTOW is not a factor, it's the MZFW which restricts the payload. Hopefully in the not too distant future the MTOW will also become a factor but we'll need the facility to remove payload before that happens. As Joe says, FlyNET allows 25kgs per passenger for baggage allowance.

MZFW - DOW = available payload.
Available payload - weight of pax/baggage = cargo load

There are instances with some aircraft where the weight of passengers and baggage exceeds the available payload but FlyNET can't adjust that yet. For some flights, using the above calcs a lot of aircraft wouldn't be able to carry the fuel for the sector unless the payload is reduced. I am hopeful that some time soon we will be able to make payload adjustments so that the Client will not allow an aircraft to depart if structural weights are exceeded. This will make aircraft operations on FlyNET much more realistic.

Regards

John

I've realized that maybe there's a problem on cargo/pax load of some aircraft types; I told this to Kenny and he explained for me about FlyNet loading system kindfully but he didn't answered my question.

A B737-900ER is able to be loaded 23045kg (MZFW-DOW). According to latest PIREPs it is being loaded 180pax + 1616kg cargo. 23045-1616=21429 / 180 = 119 ; So average weight of passengers and baggages in 739ER is 119kg.
A B737-700ER is able to be loaded 16960kg (MZFW-DOW). According to latest PIREPs it is being loaded 126pax + 4108kg cargo. 16960-4108=12852 / 126 = 102 ; So average weight of passengers and baggages in 737ER is 102kg.

Where's the problem? Am I calculating wrong or the system has a problem on pax and baggage weights?!

[CAPFlyer]

The weight of PAX and Baggage are shown separately in the briefing document so there are 3 weights displayed -

1) Passengers (@85kg each)
2) Baggage (@25kg each)
3) Cargo (no "standard" weight)

[Mostafaa747]

The weight of PAX and Baggage are shown separately in the briefing document so there are 3 weights displayed -

1) Passengers (@85kg each)
2) Baggage (@25kg each)
3) Cargo (no "standard" weight)

Thank you for your respond but in fact this was not answer of my question!
I mean average passengers weight is different in different types! Konny told me average weight of passengers is 77kg and about baggages this number is 25kg so every passenger adds 102kg (77+25) to aircraft and remained free weight up to maximum allowed payload will be filled by cargo. so about 737ER and 739ER we have:

737-900ER : 180 * 102 = 18360 . So aircraft is able to be loaded 4685kg [23045 (MZFW-DOW) -18360 (PAX+BAG)]
737-700ER : 126 * 102 = 12852 . So aircraft is able to be loaded 4108kg [16960 (MZFW-DOW) -12852 (PAX+BAG)]

Commonly in FlyNet 737ERs load up to 4108kg of cargo so there is not any problem with this aircraft but 739ERs only load 1616kg of cargo! So there is a problem with 737-900ER! It's notable to say that Fokker100s also have a problem like this.
I think I explained it as easy as possible so I hope someone give me a reasonable answer this time! Please!

[joefremont]

Thecargo value in our database for the 737-700ER was not correct, its was showing the total payload where it should show only what can be fit in the cargo hold below the floor. I just changed it to 4800kg which is the same weight as we have in the normal 737-700.

The way the 739ER works is correct, it can hold 6116kg in its cargo hold, each passanger brings 25kg of baggage which counts against that so

6116kg - 180 * 25kg (4500kg) = 1616kg.

The 737ER should work like

4800kg - 126 * 25kg (3200kg) = 1600kg.

[Mostafaa747]

Thank you joefremont for your clarifier respond.
But still there is a problem,
According to FAA, average weight of pax baggage is 25lbs (11.34kg) not 25kg. (I was working with Mahan Air during last summer and it's proved to me that 25lbs is really more reliable than 25kg!)
Sorry I never want to search for problems of FlyNet; I just think this fabulous network (and aircrafts loading system in this case) could be more accurate and also more profitable

[CAPFlyer]

Sorry, but I worked ramp for 3 years combined at Denver. If you think 25 pounds is realistic, then you must've worked for a company that didn't do any sort of long-haul work.

25KG is high, but it's what Konny went with. 85KG for people is a bit heavy too, but it's more realistic than what both the ICAO and FAA give for "standard" weights.