General Yacht Specifications - 670 and 770 Classes & self righting videos

The right Trailable Yacht - for the all the right reasons!

Two Class of yachts to choose from:- 670 and 770 Classes 

Timpenny 670 

  • LOA 6.62 mtrs 
  • LWL 6.15 mtrs 
  • Beam 2.21 mtrs 
  • Draft Centerboard up 0.25 mtrs 
  • Centerboard down 1.19 mtrs 
  • Mass 860 kg 
  • Keel ( drop version) 220 Kg 
  • Sail Area Main - 12.8 SQMtrs 
  • Self tacking Jib-  6.92 SQMtrs
  • Spinnaker - 22.5 SQMtrs
  • Keel arangements are swing keel, straight drop and angled drop versions
  • Available in cabin hard top/sliding hatch and pop top versions
  • Traveller available on cabin top or in cockpit
  • VYC CBH .685 

Features & benefits....

  • Loose footed main (inifinite sail adjustments possible - easy to power up or down)
  • Roller reef jib (or battened) - self tacking (easy - no tangling on shrouds)
  • Light weight with single axle trailer (don't need a prime mover to trail, easy to move trailer about yard) 
  • Easily launched in 10 inches (250mm) of water
  • Winches not necessary 
  • Designed by Colin Thorne for a Husband and Wife Team
  • Lightweight mast easily lifted. 
  • Responsive dinghy like , with neutral steering and adjustments. 
  • Dry planing hull - above 20knts - with fine entry.
  • Self righting with built in bouyancy (see video below). The test is shown with the drop keel version. The second test is with keel down with Colin Thorne (boat designer) actually perched on the mast. The righting moment is so strong he is almost catapulted off the mast!

    TIMPENNY SELF RIGHTING.mp4


  • Fully Bouyant (will still float even when full of water - see video below). Apparently there was footage of the boat actually sailing fully swamped but this has been lost in the seas of time.
  • It should be noted that while these tests are impressive Timpenny's are not ocean going boats. These features are extra factors of safety if something goes wrong. Any boat with enough damage and the right conditions can founder (sink).

    TIMPENNYBUOYANCYTEST.mp4

  • Large cockpit area 
  • Sleeps four with large forward berth (good for tall sailors & family friendly)
  • Portable toilet behind bulkhead 
  • Standard design rig for fair competition 
  • Sail up the beach for easy boarding (great for cruising)
  • Strong Association - great for tips/set up and National competition
  • Maintained resale value. 

Timpenny 770

  • LOA 7.71 mtrs (DK 7.67)
  • LWL 7.59 mtrs (DK 7.26)
  • Beam 2.425 mtrs 
  • Draft Centerboard up 0.28 mtrs 
  • Centerboard down 1.42 mtrs 
  • Mass 1550 (DK 1330)  kg 
  • Keel ( drop version) 410 Kg 
  • Sail Area Main - 15.79 SQMtrs 
  • Self tacking Jib - 8.92 SQMtrs
  • Spinnaker - 38.55 SQMtrs
  • Keel arangements are swing keel or drop versions
  • Available in cabin pop top versions

Features & benefits....

  • Loose footed main (inifinite sail adjustments possible - easy to power up or down)
  • Roller reef jib (or battened) - self tacking (easy - no tangling on shrouds)
  • Designed by Colin Thorne for a Husband and Wife Team
  • Larger cabin & kitchen area more suitable for extended cruising with family.
  • Seperate mini bathroom with toilet & basin, mirror & shaving cabinet.
  • Five full adult size berths.
  • Headroom of 5ft 2inches with pop top down - 6ft 6 inches with pop top up!
  • Self righting.
  • Shallow draft, skegless hull
  • Strong Association


Victorian Yachting Council CBH and Measurements 

TIMPENNY 670 

  • LOA 6620 
  • LWL 6150 
  • Rated Beam 2042 
  • Mass 860 
  • Keel Factor 1.025 
  • OAL Mast length 7622 
  • CBH rating 0.685  (official)
  • Unofficial non spinnaker CBH of 0.672

TIMPENNY 770 Swing Keel (SK)
  • LOA 7710
  • LWL 7590
  • Rated Beam 2375
  • Mass 1550
  • Keel factor 1.025
  • OAL Mast Length 9100
  • Official CBH Rating - 0.716
  • Unofficial non spinnaker CBH of 0.695

TIMPENNY 770 Drop Keel (DK)

  • LOA 7748
  • LWL 6950
  • Rated Beam 2378
  • Mass 1330
  • Keel factor 1.025
  • OAL Mast Length 9105
  • Official CBH Rating - 0.74
  • Unofficial non spinnaker CBH of 0.691
Note: Unofficial non spinnaker CBH's can be used for club racing where beginners or inexperienced sailors can race until they become comfortable with use of the spinnaker. However to be fair to boats using a spinnaker the course has to be set correctly to allow spinnakers to be deployed otherwise the lower CBH should be applied to all boats.