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Current CG -0.1% (Read 1005 times)

jasonboche Full Member Offline Posts: 53 Joined: May 7^th, 2020	Current CG -0.1% May 20^th, 2020 at 3:02am	Print Post
	At the gate, I loaded 46.7LB payload and 19.8LB fuel (short flight). GW 265.0 ZFW 245.2 Calculated CG was -0.1%. Is this correct? I've never seen it negative before. Calculated trim ended up being about 4.11 if I recall correctly. Thank you, Jas

	2020-05-19_20-47-02.jpg ( 79 KB \| 36 Downloads )
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Markoz CS Team Offline Posts: 12371 Location: Victoria, Australia Joined: Apr 24^th, 2009 Gender:	Re: Current CG -0.1% Reply #1 - May 20^th, 2020 at 9:57am	Print Post
	What does the PAX/CARGO page look like? To get a -0.1% for the CG, there must be too much weight distributed to front, or back, of the 767. Any passengers? With no PAX (1st 0/18, Business 0/12, Coach 0/211), and the CARGO set to Cargo FWD 33.7, Cargo AFT/Bulk 11.6/2.0, and the FUEL set to 19.8LB/12.3%, the CG is -1.4% (see attached image).

	2020-5-20_19-49-32-660.jpg ( 115 KB \| 39 Downloads ) Mark Fletcher PC: i7 10700K @3.8/5.1GHz \| 64GB DDR4 3200 \| 12GB RTX 4070 Super \| 32" LCD Monitor \| 1TB SSD & 2x2TB SSD \| Win 11 Pro - FSX/FSX-SE/P3D3/P3D4/P3D5/P3D6/MSFS2020 15.6" Gaming Laptop: i7 7700HQ \| 32GB DDR4 \| 6GB GTX 1060 \| 256GB SSD & 1TB HDD \| Win 10 Pro 64bit - FSX-SE/P3D4
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jasonboche Full Member Offline Posts: 53 Joined: May 7^th, 2020	Re: Current CG -0.1% Reply #2 - May 20^th, 2020 at 4:51pm	Print Post
	Markoz wrote on May 20^th, 2020 at 9:57am: What does the PAX/CARGO page look like? To get a -0.1% for the CG, there must be too much weight distributed to front, or back, of the 767. Any passengers? With no PAX (1st 0/18, Business 0/12, Coach 0/211), and the CARGO set to Cargo FWD 33.7, Cargo AFT/Bulk 11.6/2.0, and the FUEL set to 19.8LB/12.3%, the CG is -1.4% (see attached image). That's a good question. The answer is, I don't know because I didn't grab that screenshot. But I will do that the next time this happens. My virtual airline is beta testing this aircraft for use with our airline and check rides. Our ACARS software development staff is nearing completion on the integration with this aircraft. The ACARS beta software loaded my passengers, cargo, and fuel for me (but I don't know how the pax were allocated in the cabin). I did grab screenshots of the ACARS loading screens in case you're interested. If and when this happens again, I will be sure to grab more detailed screenshots of the 767 FMC for you. Thank you for your time. Jas

	2020-05-20_11-45-19.jpg ( 132 KB \| 43 Downloads )
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jasonboche Full Member Offline Posts: 53 Joined: May 7^th, 2020	Re: Current CG -0.1% Reply #3 - May 21^st, 2020 at 1:13am	Print Post
	I flew another short hop tonight and experienced more of the same result. If you would be so kind as to let me know if the aircraft pax/cargo/fuel is being loaded incorrectly or if the Current CG -2.9% is a correct calculation. Thank you, Jas

	2020-05-20_20-08-52.jpg ( 247 KB \| 87 Downloads )
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jasonboche Full Member Offline Posts: 53 Joined: May 7^th, 2020	Re: Current CG -0.1% Reply #4 - May 21^st, 2020 at 1:15am	Print Post
	I looked at it closer. Our ACARS software is loading too many pax in first class. I believe that is the cause here.


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