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John340 said..
Matthew, what tide would you need to launch a wind foil (with 1m foil mast) from the motor boat club, through the channel, out to sea?
It would be possible to use a foil (ding or sail) in a super-low low tide - the centre channel is plenty deep enough. There are quite a few ding'ers sailing outside the Bar.
If the wind is South-East to East-South-East then you can easily sail up and down the longest length of the inner channel. You would need to tack-upwind from the launch site, or walk across the shallows (just on the northern side) of the motor-boat club. Then a few more tacks-upwind to sail out through the Bar.
If the wind is SE to Southerly, then no need to tack upwind from launch, just point high to avoid the shallows - then shorter runs on the inner channel obviously.
In other words, iff you are in the middle of the channel, you are good to go.
The only time a foil could cross the coastal-sandbar ( as I have shown in all of the tracks crossing the southern edge of the sandbar ) is at high-tide. There is easily waist/chest/shoulder depth in most places. That said, the depth - at high tide - changes very quickly... you'd want to pay attention.