Below a Roberts 434 under construction 

Below is a picture of Tony Marcelonis R434 which was built using Airex core for the hull and balsa sandwich for the deck You will note that Tony has used the transom shape from the New York 46

SINGLE HANDED SAIL AROUND THE WORLD.

 Below are pictures of  the boat and a letter received from Mr Pat Garnett who in 1990
sailed singlehandedly around the world in 218 days, stopping just once for
repairs to the self steering gear 

Dear Mr Roberts,

A quick note to let you know that I have finished my circumnavigation in the Roberts 434. She took 218 days and 8 hours sailing time to cover the 27,000 miles, In terms of elapsed time this is the fastest E-W ever by any kind of sailing vessel, but of course we do not get the world record as Guinness work on average speed and she was half a knot slower than the "Ocean Bound" (David Scott Cowper) nevertheless not bad for a backyard building job.

She is in excellent condition and could go around again given a bit of sail repair. She is very fast for a heavy boat (3 tons of stores). She often reached 10 knots and could sustain 9 knots for hours on end. Her best day's run was 210 miles without current assistance. Her directional stability is excellent and in good conditions to windward she can hold her heading unaided for up to 20 minutes. I had one knockdown to 90 degrees and a few bad broaches but she picked herself up without difficulty. She is a superb boat, indeed she has to be to bring an incompetent single handler like me home safely.

Best wishes to you and many thanks for a fine design. I am starting to think about something in the 60-65' range.

Yours,
Signed, Pat Garnett

A perfect finish on a Roberts 434 Radius Chine steel hull built in the U.K.

Nice shot of a Wood Epoxy built Version B 

 Roberts 434 small portion of a very large interior.