Add Bingo and Joker to Kneeboards

[kavinsky]

Issue opened for discussion and keep track of the feature.

Make Kneeboards show bingo and joker fuel calculation on the kneeboard.

Formula calculation

Since every jet has his own formula to calculate both values, we make a "universal" formula.

Bingo:

Fixed Value for Minimum Emergency Fuel
+ Fixed Value  for (Visual Traffic Navigation OR IMC Traffic Navigation)
+ Distance(nm) from (Egress WP OR Farthest TGT WP) to Arrival APT * Fuel per mile at MIL power
+ Divert Margin: Distance(nm) from (Egress WP OR Farthest TGT WP) to divert APT

Joker:

Joker:
Bingo + Minimum Emergency Fuel

Example for F16

Distance from TGT WP to Arrival APT: 100nm
Distance from TGT WP to Divert APT: 130nm

1000lb
+ 250lb (Visual Traffic applied)
+  100 * 15lb
+  130 * 10lb

Bingo: 4050lb
Joker: 5050lb

[walterroach]

For the hornet, the bingo chart in the dash 2 basically translates to the below. This assumes a specific configuration and that you fly the bingo profile (which is way more efficient than flying MIL power at some lower altitude- the bingo profiles range from 7k to 40k feet depending on distance, and the speeds are highly variable with drag index).

F/A-18C (30k pounds zero fuel weight, 250 drag index, no headwind component): This is draggier and heavier than most pilots will be on RTB

"Rule of Thumb": 1500 lbs (minimum emergency fuel) + 15 lbs per nautical mile

For the example flight you gave, and assuming adding 1k pounds for joker is appropriate:

Distance from TGT WP to Arrrival APT: 100nm
Distance from TG WP to Divert APT: 130 nm

1500 lb
+ 100 * 15
+ 130 * 15

Bingo:  4950
Joker: 5950

[DanAlbert]

Initial implementation of this has merged into develop. It's not aircraft specific yet.