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Guest nmaggioros

CLB SPD VCL and Restrictions

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Dear PMDG,I have some questions about VCL spd. I always fly at max ZFW and i can't find where i can tell the FMS to keep the 250/10000 restriction. or any other restriction(240/10000). the only way is the SPD AT WPT. For example although i see the 250/10000 restriction the FMS has a managed spd of 265. Is this some kind of protection due to the max ZFW. In descend i don't have this problem i see the 250/10000 on the route and it does decelate to that spd (although -5kt, e.x. 245). Thanks in advance,Nicholas Maggioros

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check out the VERT REVISION page for one of the climb waypoints. The climb limit should be at 5R if I remember. At high weights, it may be above 250 because of the increased clean speed, so you will see it as something like 270/10000.

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check out the VERT REVISION page for one of the climb waypoints. The climb limit should be at 5R if I remember. At high weights, it may be above 250 because of the increased clean speed, so you will see it as something like 270/10000.
I have checked the CLB SPD LIM at 5R in the VERT REVISION but after some altitude it ignores it and uses a higher managed SPD. Maybe it's because of the clean spd

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This heavy, like the 747, must exceed the 250KIAS limit depending on weights. In actual practice ATC is advised by the crew and they accomodate.

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Dear PMDG,I have some questions about VCL spd. I always fly at max ZFW and i can't find where i can tell the FMS to keep the 250/10000 restriction. or any other restriction(240/10000). the only way is the SPD AT WPT. For example although i see the 250/10000 restriction the FMS has a managed spd of 265. Is this some kind of protection due to the max ZFW. In descend i don't have this problem i see the 250/10000 on the route and it does decelate to that spd (although -5kt, e.x. 245). Thanks in advance,Nicholas Maggioros
Nichola,The speed the FMS uses below 10,00 ft is the maximum of the 10,000/250 speed restriction and Vcl (V-climb) that is displayed on the TAKE OFF page and depends on weight. If Vcl is > 250 KAIS then the 10,000/250 limit is ignored. The speed is also restricted by configuration, so with slats/flaps or gear it will be lower.

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Nichola,The speed the FMS uses below 10,00 ft is the maximum of the 10,000/250 speed restriction and Vcl (V-climb) that is displayed on the TAKE OFF page and depends on weight. If Vcl is > 250 KAIS then the 10,000/250 limit is ignored. The speed is also restricted by configuration, so with slats/flaps or gear it will be lower.
Thanks a lot Michael for your answer

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