Sailing yachts

Harrison Butler Zyklon Class

(REF: 18291)


  • Designer: Butler, Harrison
  • Builder: Probert Brothers, Swansea
  • Year: 1950
  • Location: Cornwall
  • Length on deck: 21'
  • Beam: 7'
  • Draft: 4'

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Full specification

Wooden Ships Comments on this Harrison Butler Zyklon Class

A design by Harrison Butler built by Probert Brothers, Swansea.  The build was started before WWII but as with many boats this was put on hold during the war years and she was completed and launched in 1950.  Until the late 1960’s she was owned by Mr D.G. Probert of Milford Haven.  She is sail No. Z278.

She is one of only 10 Zyklon class boats built as opposed to 52 of the Z4 Tonners.  Her hull is to the standard Z4 design but she has raised topsides which hugely increases the interior volume of the boat.  This alteration was designed by Cpt O.M. Watts and proved to be very effective.

Major refit in 2013-2013 when she was fitted with a new hollow mast, the deck was sheathed and the hull was stripped to bare wood, repaired and re-caulked as necessary.

Sailed by the present owner from the Shetland Islands to Cornwall in 2016, since then she has been sailed around the Cornish coast and out to the Isles of Scilly.  Currently sailed without an engine, although the stern gear and engine beds are with the boat for a Yanmar 1GM10.

2013 survey available.




Planked in Pitch Pine all copper fastened to steam bent oak timbers.  Hull stripped in 2013, checked repaired and re-painted.

Iron external ballast keel with black iron keel bolts.  Keel bolts all new in 2000.

Sheathed plywood deck on oak deck beams.



Bermudan cutter rig on a hollow keel stepped varnished mast new in 2013.

New bowsprit with new inner and outer forestay in stainless steel.

All stainless steel standing rigging to external chain plates.



She currently has no engine but was fitted with a Yanmar 1GM10.  The engine beds and shaft log are in place for this engine and the owner will fit a replacement for a new owner.



Simple open plan layout with 2 settee berths.

Chart des to starboard and galley to port at the aft end of the cabin.  Galley has a Taylors paraffin stove.

Bulkhead to starboard in way of the mast



DSC VHF with new antenna

Navigation lights

Internal LEDlighting

One large and one medium CQR anchors

60m 3/8″ galvanised chain

Solar panel

Auto bilge pump



Mainsail and 5 headsails

Sculling oar



Full specification and details available upon request




These particulars have been prepared in good faith from information provided by the Vendors and are intended as a guide, Wooden Ships cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. The Purchaser should instruct his agent or surveyor to validate all details as necessary and satisfy himself with the condition of the vessel and its equipment.