Formation Takeoff with Cross wind >5kts

[Frodo]

I use the current weather wind direction and speed to determine the lineup for departure.

[Stryker]

I use the current weather wind direction and speed to determine the lineup for departure.

Hey Frodo,

476TTp3-3.A10C:
"When crosswind component exceed 5 knots, wingman on the upwind side of the runway."

My point is that to determine the "crosswind-component" you must do some math...

crosswind_component = sine(wind_angle_off_runway_heading) x wind_speed


Note that a 25 knot wind at 10 deg off runway heading only produces 4.34 knots of crosswind-component, which is under the 5 knot crosswind-component limit, and therefore either side of the runway could be occupied by the lead ship.

Additional examples:
When 6 knot wind direction is 90 deg off runway heading (beam to runway) exceeds the 5 knot and therefore the lead must take the downwind side as specified in the TTP. When wind direction is 90deg to runway heading (beam to runway), crosswind_component = wind_speed

When 6 knot wind direction is 45 deg off runway heading, crosswind_component is 4.24 knot and therefore less than the limit, and no factor.

Crosswind-component - Although not specifically defined in the TTP, I interpret this to be the calculated wind vector component (using my formula above) that is 90 deg to the runway heading.

At least that's how I interpret the TTP. I could be wrong, of course.

Are people doing the calculation above to determine the crosswind-component in preflight?