I think its the odd chance that a tube might submarine and that would cause a lot of drag, along with the initial startup.
The problem with tubing is the instaneous force not the sustained forces.
I know from skiing that on a slalom ski with a good pull the pylon will bend quite a bit.
The problem with tubing is the instaneous force not the sustained forces.
I know from skiing that on a slalom ski with a good pull the pylon will bend quite a bit.
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