747-400 / 8 cruising issue?

[Ecoops123]

@anon76452118

Experienced IF 747 pilots like me know the plane and know that keeping at least 10 degrees of flaps

@DeerCrusher crushed me to pieces when I said this. (Pun was not intended)

It’s all in the trim and what Simbrief says

Did I put enough fuel!

@Ecoops123 There is no fuel burn issue. The tip you’re telling people is not correct based on factual fuel burn values. See my example below. 747-400 cruises at M.855. Let’s round to M.86 since we can’t do .005 increments. Trimmed out at 50% flaps up, I’m burning 22,300lbs/hr. Now if we look at the specs found online, you’ll see that this 22,300 number is actually within 1500lbs of what they’re saying online. When I did your method, you’re doing 15,900lbs/hr. Now, sure its more efficient, but…