there is nothing safe about towing a boat with a helicopter
Fully understand the message you are trying to give, but it can be done if you go about it in the correct manner, and willing to accept the attendant risks, if any.
A Columbia 107 towed a hover barge over 50 miles of broken ice to an offshore drilling island. The barge was then loaded with equipment bringing its total weight to 220 tons, and towed back to shore. The 107 was able to tow the hover barge with a 600-foot longline with speeds up to 10 knots proving a new method of equipment transport.
