No one has crossed the Atlantic in a C Dory--that would take a lot of logistics or fuel, as several small boats have crossed under power,. Al Grover in the Grover 26, outboard powered made the crossing--there was a stop to refuel, and the cockpit of the boat was literally filled with jerry cans of fuel.
Also a large "flats fishing boat" crossed, again with a lot of logistic help with fuel being pre arranged along the way. Both of these were the extreme Northern Route.
I have crossed in my own motor sailor--but I had a range of 3000 miles under power--and unlimited under sail. The boat was 62 feet LOA, and weight of 35 tons. We encountered hurricane force winds in the Bermuda to Azores leg--and had 35 to 40 foot breaking seas. Although the C Dory is a sea worthy boat, I would not want to experience those conditions in any small boat.
The C Dory at one time had CE certification--there was a plan to send several to Europe--I am not sure if one or two were shipped over or not.
