CRUISE
Press Play — a seeker gate tracks the jet. Dispense a flare to contest the in-band intensity inside the gate.
▶ Play
⟲ Reset
t = 0.00 s
Engagement — seeker gate, jet, and flare (2 km, 1.5° gate)
Target jet (J_tgt)
Flare (J_flare)
Seeker gate
Gate centroid / lock
In-band intensity contest — flare vs target (first 4 s)
J_flare(t)
J_tgt = 800 W/sr
now
Seeker type
Reticle
Imaging / 2-color
Reticle seeker centroids on the brightest in-band point inside the gate — the flare seduces it whenever J_flare > J_tgt.
Kinematics — flare decelerates, leaves flight path
—
Two-color — flare spectrum ≠ plume
—
Intensity rise-rate — impossibly fast jump
—
Flare (KPP tradeoff)
Peak J_flare
4000 W/sr
Rise time τ_r
0.10 s
Dispense range
2000 m
Dispense time
0.6 s
Fast flare
Slow flare (bad KPP)
Bright & fast
✦ Dispense now
Gate half-width = R · 1.5° ≈ 52 m at 2 km. Flare falls behind the jet by sep(t); the win closes when sep > gate half-width — set by geometry, not the flare.
Gate half-width
52 m
Separation
0 m
Seduction window
—
Gate locked to
Target
Dispense a flare to run the contest.