flame out and landing weight

[dave76]

guys is there a way to know what is landing weight in case i have to make a flameout approach.....i know i have to add 5 kcas every 1000 lbs more than 20000lbs, but how can you check the weight , just add your fuel in the tanks to 20000lbs (plus external stores???). is there a more precise indication maybe in the ded?

Edited April 23, 2020 by dave76

[Geraki]

[dave76]

great help geraki, thank you

[Bouli306]

guys is there a way to know what is landing weight in case i have to make a flameout approach.....i know i have to add 5 kcas every 1000 lbs more than 20000lbs, but how can you check the weight , just add your fuel in the tanks to 20000lbs (plus external stores???). is there a more precise indication maybe in the ded?

 

Instead of all calculations you could also glide with 7degrees AOA...which is best glide (rule of thumb)

[Bog9y]

Shouldn't the speeds for a C model be 200 kts for a 20,000 lbs jet + 5 kts/1000 lbs of stores/fuel?

- 10 kts of that speed with Gear down , minimum being -20 kts.

 

But as Bouli says, an AOA of 7 degr is a good ROT.