Yikes, I don't like towing my 8' dinghy
behind my 35' sailboat.
might get pretty interesting. The dinghy in some cases will prevent you from heaving and pitching as designed and might make for some very uncomfortable sailing in chop.
You don't really say where you sail, or how many of you, an inflatable
stand up paddle board might make for a reasonable dinghy on a 20 footer, stow it inflated along your life lines. Cold water
that won't work obviously though.
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