oldmulti's Recent Activity

  1. oldmulti replied to the thread Multihull Structure Thoughts.

    Slingshot. The book is by Erik Lerounge and is titled "Materiaux Composites" It was produced by HS 30 Loisirs Nautiques. The book is no...

    Nov 27, 2021 at 3:35 AM
  2. oldmulti replied to the thread 80 foot cargo harryproa.

    Well done Rob, we have all learnt something during this build. The sea trials will tell us more about how stiff the glass hulls are and...

    Nov 27, 2021 at 3:01 AM
  3. oldmulti liked rob denney's post in the thread 80 foot cargo harryproa.

    Borrowed a set of accurate crane scales and weighed the bits. Lee hull ends incl rudders (2 x 125) and middle (310), ww hull (350),...

    Nov 27, 2021 at 3:01 AM
  4. oldmulti replied to the thread Multihull Structure Thoughts.

    Slingshot. They talk about the Brazapi 50 and a 51 which were custom builds. The 50 was Foam epoxy glass with kevlar reinforcements and...

    Nov 26, 2021 at 11:35 PM
  5. oldmulti replied to the thread Multihull Structure Thoughts.

    Slingshot. More information please on the Bazapi 50 cat as I do not know the cat. Eg who is producing or designed it. i can possible...

    Nov 26, 2021 at 10:44 PM
  6. oldmulti attached a file to the thread Multihull Structure Thoughts.

    The Threefold 6 is designed by Dudley Dix to be a safe and lively trimaran to sail singlehanded or with a crew and can be used as a day...

    3 fold 1.jpg 3 fold 7.gif 3 fold 6.gif 3 fold 9.gif 3 fold 8 folded.gif 3 fold 10.gif 3 fold a.jpg 3 fold b.jpg 3 fold d.jpg 3 fold c.jpg 3 fold 2.jpg 3 fold 11.jpg 3 fold 3.jpg Nov 26, 2021 at 4:05 PM
  7. oldmulti attached a file to the thread Multihull Structure Thoughts.

    The following 21 foot trimaran is a design proposal from Richard Fraser from Fraseraerospace.. Richard has built a Piver Mariner 25...

    Fraser 18 8 model.jpg Fraser Tri_21 2.jpg Fraser Tri_2.jpg fraser 21_ft_tri.jpg Nov 25, 2021 at 2:03 PM
  8. oldmulti liked Ron Badley's post in the thread Multihull Structure Thoughts.

    The rotation system is quite simple. The is a Derilin cup at the base of the mast captured by an outer stainless cup. The base of the...

    IMG_20190719_145617.jpeg Nov 25, 2021 at 1:54 PM
  9. oldmulti replied to the thread Multihull Structure Thoughts.

    Patzefran. Page 56 and 58 on this thread has some detail of White Wings but Ron's input would be much appreciated.

    Nov 25, 2021 at 7:00 AM
  10. oldmulti replied to the thread Multihull Structure Thoughts.

    Ron, if the boat mentioned is the 36 foot Newick ketch rigged White wings can you please tell us how it performs upwind etc. and how...

    Nov 24, 2021 at 8:40 PM
  11. oldmulti attached a file to the thread Multihull Structure Thoughts.

    Second part of Val 11 mainly featuring the mast, which is strip plank fir with carbon fiber inside and outside. The central spine is...

    V 2 mast 4.jpg V 2 30.jpg V 2 32.jpg V 2 mast 2.jpg V 2 mast 3.jpg V 2 31.jpg V 2 mast 1.jpg V 2 36.jpg V 2 13.jpg V 2 27.jpg V 2 16.jpg V 2 29.jpg Nov 24, 2021 at 2:33 PM
  12. oldmulti attached a file to the thread Multihull Structure Thoughts.

    The “Albatros” is a Val II trimaran designed by Dick Newick in 1991. Val designs have been featured before but this one caught my...

    V 2 5.jpg v 2 2.jpg V 2 1.jpg V 2 3.jpg V 2 4.jpg val 11 study gh.jpg V 2 9.png V 2 21.jpg V 2 25.jpg V 2 26.jpg V 2 34.jpg V 2 35.jpg V 2 33.jpg V 2 27.jpg Nov 24, 2021 at 2:24 PM
  13. oldmulti attached a file to the thread Multihull Structure Thoughts.

    The America’s Cup has just released the rules for the next series. One boat only, similar to the last series, hopefully using the vessel...

    AC chase 1.jpg AC chase 2.jpg AC chase 3.png AC Hydrogen Chase boat.png Nov 23, 2021 at 2:57 PM
  14. oldmulti attached a file to the thread Multihull Structure Thoughts.

    Today we will feature the future. The base trimaran is 27 x 19.5 foot and displaces 2,300 lbs. The two L based forward foils and the...

    hyd 12.jpg hyd 13.jpg Hyd Powertrain-Propeller-Electronics-Sensors.jpg Hyd Batteries-Motor-Solar-Boat.jpg hyd Hydrofoils.jpg hyd 1.jpg hyd 3.jpg Delft-Hydro-Motion-wbR.jpg hyd 5.jpg hyd 8.jpg hyd 2.jpg hyd 6.jpg Nov 22, 2021 at 3:19 PM
  15. oldmulti attached a file to the thread Multihull Structure Thoughts.

    Bernard Kohler is a versatile designer who creates mainly plywood sailing cats and tri’s from 10 to 40 foot. The one we are featuring...

    eco6 3.jpg eco6 5.jpg eco6 2.jpg ECO6 1.jpg ECO6 9 hlayoutBW.jpg eco6 6.jpg eco6 7.jpg eco6 8.jpg Nov 21, 2021 at 5:52 PM