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2025-07-17 Training Portsmouth

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    AUS vs GBR data

    AUS both LA rudder and boards. GBR HSB2 and LAR1

    Upwind Straight Line Foiling

    Wind at 23kph

    • AUS lower speed, higher angle, a bit better VMG. Speed target probably low 50s vs mid/high 50s of GBR. TWA at 47 compared to 54 of GBR
    • AUS sailed bow down (3 deg vs 2.8)
    • AUS more canted in 1.77 vs 3.5
    • AUS jib lead more in 5.8 vs 7.1

    Downwind straight line foiling

    • Again AUS lower speed, but better angle (a bit better VMG) Target Speed in low 60s, vs GBR high 60s
    • AUS angle at 136 compared to 130 of gbr
    • AUS canted a bit more in (can just be their prefference) 0.8 vs -1.15

    Pops

    Median pop speed of AUS at 33 (had some at 30kph) GBR quite above at 37. Can be due to current and probably they were alone and not in urge to get up at minimum boat speed.

    • AUS popping with cant 6-8. GBR at 4-5.
    • AUS Rudder avg in pops at 2.5. GBR at 2.8 moving it higher after.
    • AUS has no rudder diff so can be there is difference in how to do it.
    • AUS popping with CA1 of 24. GBR at 22

    Tacks

    • AUS managed to stay foiling even at 45+ kph entry a few times. So foiling tacks entry speed is lower (gbr was at 50+)
    • AUS inverting a bit later (not sure if connected to different foils)
    • AUS cant stowed at 3 (GBR 0) Dropping at 5.5, going to 5 while GBR drops at 4.5 going to 3.5.
    • AUS needs less max rake on new side

    Gybes

    • AUS lower speed, but better angle. Similar rate of turn. Just can go lower soon after the gybe.
    • AUS more canted in (again, can be just prefference)