General Specifications  & Hull Construction

“Vanda” (ex “Van Triumph”) was built in Hong Kong in 1975 by Supercraft Ltd. as a private yacht for the yard’s owner, and maintained in class with American Bureau of Shipping, with Machinery Certificate. She was renamed after the launch of his new 65m Van Triumph. In 1993 she was laid up ashore at Supercraft’s yard in Hong Kong, where she was maintained by them until a suitable idiot like the present owner was found to buy her in 2003.

 

The hull is constructed of Burmese teak (tectona grandis (verbacenea)), on Borneo yacal frames. Yacal is a termite resistant and very strong hardwood of the species hopea odorata (dipterocarpaceae). It is also known as “giam” in Malay,  or “mai thakian” in Thailand (where it was used for the royal barges, each of which was dug out from a huge single trunk). Teak has a density of 650 kgs per cubic metre, and yacal 977 kgs per cubic metre.

 

Under supervision of the new owner’s surveyor and engineer, the hull was stripped to bare wood and all wood, machinery and equipment examined and renewed (where necessary), before being re-launched  and recommissioned  in November, 2003. She sailed from Hong Kong to Hainan Island and Bangkok in March 2004, and in 2006 to Myanmar via Singapore. In Myanmar the hull was again stripped and all caulking removed to examine condition. A small amount of soft or damaged hull planking was replaced with seasoned teak planks and the upper and after decks replaced with mature quartersawn teak planking over new epoxy sealed marine plywood. The decks and hull were then totally recaulked with new cotton and Sika caulking  compounds

 

The interior was cleared back to the inner planking and all frames, knees and beams cleaned and repainted with epoxy primer. The engine room was primed and resealed with fire resistant coatings .

 

 

HULL

Keel                        : 

11” width solid teak with 1½” outer keelson, yacal shoed with 3/8” stainless steel plate and with an additional 27” stainless steel skeg extending the full length of the keel

Hog                          :

20” x 7” yacal bolted with 1½”dia. stainless steel bolts to keel

Frames                    : 

10” x 4” yacal,  spacing 21” between centres;  Engine  Room  (between frames 23 and 39 inclusive)  spaced 18” between centres

Planking Inner Skin:

Teak: 1”, fastened to frames with stainless steel bolts with layer of glass cloth and resin between inner and outer shell

Planking Outer Skin:

Teak: 11” wide planking, 1½” thickness at sides, 2” on bottom with 4” x 9 gauge bronze wood screw fastening to inner skin and stainless steel bolts  to frames and  stringer

Engine Bed              :

7” x 15” yacal beams capped with 3/8” steel bearers set 32” apart, extending from frames 6 to 36

Bottom & Longitudinal     Stringers    :  

 

3” x 1½”  yacal

Spray Chine            :

4” x 2” yacal external along side chine with 6” x 4” internal longitudinal with 1½” chine brackets on frames

Trim plates               :           

9” wide,  Ό” stainless steel plate bracketed 6” above  chine extending 33’6” forward from transom

Anti-cavitation plate:

30” wide shaped 3/8” stainless steel  plate, full transom width

Rubbing strake          :          

8” x tapered 6” to 4” yacal, faced with  4” x 3/8”  stainless steel plate       

Watertight Bulkheads:

 (4)

Forward collision bulkhead: 3/8” steel with 2  watertight doors to chain lockers and 2 watertight doors for forepeak access

 

Engine Room: Ό”  steel paneled bulkheads fore and aft with  watertight doors and separate insulating doors

 

Aft:  Ό” steel bulkhead forward of steering space, no door

 

DECK

Beams             :

6” x 4” yacal

Exterior main deck: 

2” teak laid over Ύ” epoxy sealed marine plywood.

Upper boat deck        :  

1Ό” teak over Ύ” epoxy sealed marine plywood

Diving  Platform        :          

1½” x 2” teak on braced 316 stainless steel angle bars and frames

 

SUPERSTRUCTURE

Frames                       :          

6” x 3 ½” x 18 steel channels with 3” x 3” x Ό” reinforced steel angle bar

Side Wall                    :          

Ύ” marine plywood covered with 3/16” fibreglass sheathing

Wheelhouse Roof      :          

Ύ” marine plywood covered  with 3/16” fibreglass sheathing with Ύ” teak decking

Wheelhouse floor      :           

1½” teak  on Ύ” marine plywood

 

INTERNAL

Marine windows & portholes:

Side windows custom made using 316 stainless steel with tempered shatterproof glass.

20 Portholes below deck machined from 316 stainless steel, internal diameter 12 inches, flange O.D. 16 inches,  thickness  4½”  with ½” armoured glass and  internal Ό” steel deadlights

Forward stateroom (main deck) has 2 small stainless rectangular forward windows with stainless steel storm covers, sealed side armoured glass windows and 11” internal diameter marine aluminium portholes with deadlights,

Engine room starboard side has 11” diameter, 7” opening  cast marine aluminium porthole with deadlight

Ventilators: 2 units 10” mushroom screw down,  6” internal diameter, stainless ventilators thru steel ducts from cabin rook to crew mess; Vetus design 5” internal diameter stainless steel rotatable deck cowl ventilators are of 316 stainless steel and mounted on dorades and equipped with blanks and canvas covers.

Grey/black water tanks

5  stainless  grey water tanks (3 aft, 2 forward) and separate aft and forward black water tanks for sewage

Water & fuel  tanks:

Custom made from 316 stainless steel with outer sheathing of fiberglass mat and resin for fire protection of fuel tanks

Capacities       :

Fuel oil: approx  24 tons.   Fresh Water: approx 8 tons.

 

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