Dasa Measurement
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DABCHICK ASSOCIATION OF SOUTH AFRICA PART 6
DABCHICK CLASS MEASUREMENT SCHEDULE
Name of Yacht
__________________________________________________________
Owner
__________________________________________________________
Address
__________________________________________________________ __________________________________________________________
Owner's Club
__________________________________________________________
Name of Measurer
__________________________________________________________
Name of Builder
__________________________________________________________
Sail Number
__________________________________________________________
( The sail number will be allocated after the Measurer is satisfied that the hull conforms to the Class Rules - Section A of this schedule. ) EXTRACT OF RULES Rule No: 1.
The object of these rules is to establish a class of boat which is one-design in all matters which affect the basic speed. The rules shall be interpreted in this spirit. All boats shall be built to conform with the class rules.
2.
Builders shall not attempt to get around the spirit or the letter of these rules. The rules are complementary to the measurement form. In the event of any discrepancy between the rules and the measurement form, the matter shall be referred to the DASA Technical Committee for a ruling. In addition any items found by the measurer to be not specifically sanctioned by these rules shall also be referred for a ruling.
3.
It is the responsibility of the owner to see that the boat is properly measured and to see that it thereafter always remains in class even after alterations, additions or rebuilding have been carried out.
18.
Hulls shall only be constructed of wood and/or glass reinforced plastic. No carbon fibre or kevlar materials may be used.
20.
All hull measurements are exclusive of any rubbing strakes.
21.
A general tolerance of +- 15 mm is allowed for all measurements unless otherwise stated. This form when completed should be forwarded to: The Dabchick Association of South Africa c/o SAS PO Box 5036 8000 CAPE TOWN
2005
Measurement
Page 1 of 5
SECTION A
Hull ( right way up ) Deck along centreline to be straight from bow to transom. Length overall Length from transom to centre of jib attachment Length of jib attachment (max) Length from transom to centre of mast step Length of mast step (max) Length from transom to forward end of centreboard case Length from transom to aft end of centreboard case Width of centreboard case (max) Depth of hull at middle of centreboard case Beam Beam Beam Beam Beam Beam
at transom 710mm from transom 1625mm from transom 2235mm from transom 2850mm from transom 3300mm from transom
Perimeter along outer edge of deck from centre line to a point 3300mm from transom of one half of bow (max) Vertical height of bow measured on centreline (max) Rubbing strake if fitted vertical and horizontal (max)
| |
Rule | No |
Should | be mm |
| | | | | | |
| 22(f) | 22(a) | (b) | (c) | (d) | (e) |
| | 3 607 | 3 457 | 40 | 2 697 | 150 |
|
|
|
| | | |
24(b) | 24(a) | 25 | 27 |
2 210 | 1 651 | 26 | 267 |
|
|
|
| | | | | |
23(a) | (b) | (c) | (d) | (e) | (f) |
641 | 895 | 1 100 | 1 150 | 1 073 | 915 |
|
|
|
| | | |
| 26(a) | 26(b) | 28 |
| 635 | 50 | 15x30 |
|
|
|
A single track adjustable fairlead may be fitted on the port and starboard deck.
| |
48 | |
| |
Hull ( upside down ) At transom: Depth of transom centre (excl skeg) Depth of transom sides Skeg, if fitted, length, depth below keel At 710mm from transom: Depth from keel to gunwale Depth from keel to chine At 1 625mm from transom: Depth from keel to gunwale Depth from keel to chine At 2 235mm from transom: Depth from keel to gunwale Depth from keel to At 2 850mm from transom: Depth from keel to gunwale Depth from keel to chine At 3 300mm from transom: Depth from keel to gunwale Depth from keel to chine
| | | | | | | | | | | | | | | | | || | |
| | 29 | | (a) | 114 | (b) | 64 | (c) | 300x30 | 30 | | | 184 | | 95 | 30 | | | 235 | | 133 | | | | 242 | | 140 | | | | 203 | | 114 | | | | 118 | | 73 |
(max)
Actual mm
Yes/No
Yes/No
In the case of the deck or hull planking being chamfered the measurement shall be taken to be that which would have been measured had no chamfering taken place. 2005
Measurement
Page 2 of 5
SECTION B | |
Hull Mass With permanently attached fittings, toestraps and hatchcovers in place but excluding cordage. If under mass, corrector masses must be fixed adjacent to mast step above or below deck. Corrector masses if fitted Total Mass in Kg
(min) (max) (min)
Numbers The boat's official number shall be permanently carved into the transom. The figures shall be not less than 20mm in height, and shall be clearly legible. Transom Holes
Max number 2 Max diameter 30
(max) (max)
Fittings All fittings shall be attached to the external surfaces of hull and not recessed in any way except : 1. Chain plates wholly within 10mm from external side of hull. 2. Forestay fittings may pass through deck Buoyancy a) Hatches if fitted shall be of a threaded type and the hull shall remain watertight under sailing conditions. b) Boats constructed of glass reinforced plastic shall have the same positive buoyancy as that of a wooden boat Daggerboard Shall float and be rectangular in shape, except that corners may be rounded. Width (max) Minimum thickness 100mm from any edge (min) Perpendicular depth below keel when fully lowered (max) The daggerboard must be attached to the hull by a lanyard Rudder Minimum thickness below waterline 50mm from any edge Aluminium Wood Width (max) Maximum length below transom (max) The rudder and tiller shall be fitted so that they shall not fall off in the event of a capsize. Are they so fitted?
2005
Measurement
| | | | | |
Rule | No |
Should | be mm |
Actual mm
| | | | 31 | 38,6Kg | | | | | 32 | 5,0Kg |
|
|
|
| 38,6Kg |
|
|
|
|
| | | |
| | | 9|
| | | |
|
|
|
| |
42 | 42 |
2| 30 |
|
|
|
| | | | |
| | | 43(b) | |
| | | | |
|
|
|
| | | | |
| | 44(a) | | 44(b) |
| | | |
|
|
|
| | | | | | |
| 33 | | 33(a) | (b) | (c) | (d) |
| | | 279 | 16 | 647 | |
|
|
|
| | | | | | | |
| | 5| 35 | 36(b) | (a) | | 37 |
| | 3| 9| 203 | 410 | | |
|
Yes/No
Yes/No
Yes/No Yes/No Yes/No
Yes/No
Yes/No
Page 3 of 5
| |
Spars Permanently bent spars are prohibited. Spars are straight? Must pass through a tube 78mm diameter x 300mm long, excluding fittings (riveted track not exceeding 25mm high is a fitting) Coloured bands minimum 15mm wide in a contrasting colour to the spars must be painted as follows : Mast: From deck to top edge of lower band perpendicular to deck centre line (max) From top edge lower band to lower edge upper band (max) Boom: From after face of mast, excluding track to leading edge of band
(max)
Sails Shall be made of woven cloth Cloth reinforcements and tabling shall conform to latest ISAF measurement instruction limits. Mainsail Width of headboard, excluding boltrope measured square to the mast Half height width folded, excluding boltrope Leach Optional - loose footed, head to midpoint of the foot Battens, 3 in number, approximately equally spaced along the leach - length
(max) (max) (max) (max) (max)
|
|
| | | | |
| 38(c) | | 39 | |
| | | | |
|
|
|
| |
| |
| |
|
|
|
| | |
| 40(a) | 40(a) |
|
|
|
|
| |
| 40(b) |
| 2 159 |
|
|
| | | |
| 45(a) | | |
| | | |
|
|
|
| | | | | | | |
| | 45(b) | 46(a) | (b) | (e).| | 46(c) |
| | 115| 1 485 | 3 810 | 3 750 | | 610 |
|
|
| | | | |
No battens or headboard allowed.
| | | | 46(d) | | 200x140x30 | 45(c) | Note | |
| | | 47(a) | | (a) | | (b) | | | (max) | (c) | Size in sq. cm.(max) 3 000 | From any edge(min) 150 | | | (max) (max) (max)
Actual mm
Yes/No Yes/No
762 3 480
|
|
Jib Luff Leach Foot Centre measurement from highest point on luff to mid point of foot Optional window is allowed.
Should | be mm |
|
|
Dabchick insignia and number shall be clearly visible, legible, of a single colour which strongly contrasts with the sail, and shall correspond to the registered number as carved in the transom - size (min) No window is allowed
Rule | No |
Yes/No
Yes/no
|
| 2 667 | 2 667 | 1 473 | | 2 720 | |
(d) |
|
(d) |
Note |
I, the undersigned, declare that I have carefully examined the construction of this boat and in my opinion it has been built in accordance with the Dabchick class rules and the provisions of this measurement schedule.
2005
Measurement
Page 4 of 5
DATE: _________________
2005
___________________________________ Signed - SAS Appointed Dabchick Measurer
Measurement
Page 5 of 5
DABCHICK CLASS MEASUREMENT SCHEDULE
Name of Yacht
__________________________________________________________
Owner
__________________________________________________________
Address
__________________________________________________________ __________________________________________________________
Owner's Club
__________________________________________________________
Name of Measurer
__________________________________________________________
Name of Builder
__________________________________________________________
Sail Number
__________________________________________________________
( The sail number will be allocated after the Measurer is satisfied that the hull conforms to the Class Rules - Section A of this schedule. ) EXTRACT OF RULES Rule No: 1.
The object of these rules is to establish a class of boat which is one-design in all matters which affect the basic speed. The rules shall be interpreted in this spirit. All boats shall be built to conform with the class rules.
2.
Builders shall not attempt to get around the spirit or the letter of these rules. The rules are complementary to the measurement form. In the event of any discrepancy between the rules and the measurement form, the matter shall be referred to the DASA Technical Committee for a ruling. In addition any items found by the measurer to be not specifically sanctioned by these rules shall also be referred for a ruling.
3.
It is the responsibility of the owner to see that the boat is properly measured and to see that it thereafter always remains in class even after alterations, additions or rebuilding have been carried out.
18.
Hulls shall only be constructed of wood and/or glass reinforced plastic. No carbon fibre or kevlar materials may be used.
20.
All hull measurements are exclusive of any rubbing strakes.
21.
A general tolerance of +- 15 mm is allowed for all measurements unless otherwise stated. This form when completed should be forwarded to: The Dabchick Association of South Africa c/o SAS PO Box 5036 8000 CAPE TOWN
2005
Measurement
Page 1 of 5
SECTION A
Hull ( right way up ) Deck along centreline to be straight from bow to transom. Length overall Length from transom to centre of jib attachment Length of jib attachment (max) Length from transom to centre of mast step Length of mast step (max) Length from transom to forward end of centreboard case Length from transom to aft end of centreboard case Width of centreboard case (max) Depth of hull at middle of centreboard case Beam Beam Beam Beam Beam Beam
at transom 710mm from transom 1625mm from transom 2235mm from transom 2850mm from transom 3300mm from transom
Perimeter along outer edge of deck from centre line to a point 3300mm from transom of one half of bow (max) Vertical height of bow measured on centreline (max) Rubbing strake if fitted vertical and horizontal (max)
| |
Rule | No |
Should | be mm |
| | | | | | |
| 22(f) | 22(a) | (b) | (c) | (d) | (e) |
| | 3 607 | 3 457 | 40 | 2 697 | 150 |
|
|
|
| | | |
24(b) | 24(a) | 25 | 27 |
2 210 | 1 651 | 26 | 267 |
|
|
|
| | | | | |
23(a) | (b) | (c) | (d) | (e) | (f) |
641 | 895 | 1 100 | 1 150 | 1 073 | 915 |
|
|
|
| | | |
| 26(a) | 26(b) | 28 |
| 635 | 50 | 15x30 |
|
|
|
A single track adjustable fairlead may be fitted on the port and starboard deck.
| |
48 | |
| |
Hull ( upside down ) At transom: Depth of transom centre (excl skeg) Depth of transom sides Skeg, if fitted, length, depth below keel At 710mm from transom: Depth from keel to gunwale Depth from keel to chine At 1 625mm from transom: Depth from keel to gunwale Depth from keel to chine At 2 235mm from transom: Depth from keel to gunwale Depth from keel to At 2 850mm from transom: Depth from keel to gunwale Depth from keel to chine At 3 300mm from transom: Depth from keel to gunwale Depth from keel to chine
| | | | | | | | | | | | | | | | | || | |
| | 29 | | (a) | 114 | (b) | 64 | (c) | 300x30 | 30 | | | 184 | | 95 | 30 | | | 235 | | 133 | | | | 242 | | 140 | | | | 203 | | 114 | | | | 118 | | 73 |
(max)
Actual mm
Yes/No
Yes/No
In the case of the deck or hull planking being chamfered the measurement shall be taken to be that which would have been measured had no chamfering taken place. 2005
Measurement
Page 2 of 5
SECTION B | |
Hull Mass With permanently attached fittings, toestraps and hatchcovers in place but excluding cordage. If under mass, corrector masses must be fixed adjacent to mast step above or below deck. Corrector masses if fitted Total Mass in Kg
(min) (max) (min)
Numbers The boat's official number shall be permanently carved into the transom. The figures shall be not less than 20mm in height, and shall be clearly legible. Transom Holes
Max number 2 Max diameter 30
(max) (max)
Fittings All fittings shall be attached to the external surfaces of hull and not recessed in any way except : 1. Chain plates wholly within 10mm from external side of hull. 2. Forestay fittings may pass through deck Buoyancy a) Hatches if fitted shall be of a threaded type and the hull shall remain watertight under sailing conditions. b) Boats constructed of glass reinforced plastic shall have the same positive buoyancy as that of a wooden boat Daggerboard Shall float and be rectangular in shape, except that corners may be rounded. Width (max) Minimum thickness 100mm from any edge (min) Perpendicular depth below keel when fully lowered (max) The daggerboard must be attached to the hull by a lanyard Rudder Minimum thickness below waterline 50mm from any edge Aluminium Wood Width (max) Maximum length below transom (max) The rudder and tiller shall be fitted so that they shall not fall off in the event of a capsize. Are they so fitted?
2005
Measurement
| | | | | |
Rule | No |
Should | be mm |
Actual mm
| | | | 31 | 38,6Kg | | | | | 32 | 5,0Kg |
|
|
|
| 38,6Kg |
|
|
|
|
| | | |
| | | 9|
| | | |
|
|
|
| |
42 | 42 |
2| 30 |
|
|
|
| | | | |
| | | 43(b) | |
| | | | |
|
|
|
| | | | |
| | 44(a) | | 44(b) |
| | | |
|
|
|
| | | | | | |
| 33 | | 33(a) | (b) | (c) | (d) |
| | | 279 | 16 | 647 | |
|
|
|
| | | | | | | |
| | 5| 35 | 36(b) | (a) | | 37 |
| | 3| 9| 203 | 410 | | |
|
Yes/No
Yes/No
Yes/No Yes/No Yes/No
Yes/No
Yes/No
Page 3 of 5
| |
Spars Permanently bent spars are prohibited. Spars are straight? Must pass through a tube 78mm diameter x 300mm long, excluding fittings (riveted track not exceeding 25mm high is a fitting) Coloured bands minimum 15mm wide in a contrasting colour to the spars must be painted as follows : Mast: From deck to top edge of lower band perpendicular to deck centre line (max) From top edge lower band to lower edge upper band (max) Boom: From after face of mast, excluding track to leading edge of band
(max)
Sails Shall be made of woven cloth Cloth reinforcements and tabling shall conform to latest ISAF measurement instruction limits. Mainsail Width of headboard, excluding boltrope measured square to the mast Half height width folded, excluding boltrope Leach Optional - loose footed, head to midpoint of the foot Battens, 3 in number, approximately equally spaced along the leach - length
(max) (max) (max) (max) (max)
|
|
| | | | |
| 38(c) | | 39 | |
| | | | |
|
|
|
| |
| |
| |
|
|
|
| | |
| 40(a) | 40(a) |
|
|
|
|
| |
| 40(b) |
| 2 159 |
|
|
| | | |
| 45(a) | | |
| | | |
|
|
|
| | | | | | | |
| | 45(b) | 46(a) | (b) | (e).| | 46(c) |
| | 115| 1 485 | 3 810 | 3 750 | | 610 |
|
|
| | | | |
No battens or headboard allowed.
| | | | 46(d) | | 200x140x30 | 45(c) | Note | |
| | | 47(a) | | (a) | | (b) | | | (max) | (c) | Size in sq. cm.(max) 3 000 | From any edge(min) 150 | | | (max) (max) (max)
Actual mm
Yes/No Yes/No
762 3 480
|
|
Jib Luff Leach Foot Centre measurement from highest point on luff to mid point of foot Optional window is allowed.
Should | be mm |
|
|
Dabchick insignia and number shall be clearly visible, legible, of a single colour which strongly contrasts with the sail, and shall correspond to the registered number as carved in the transom - size (min) No window is allowed
Rule | No |
Yes/No
Yes/no
|
| 2 667 | 2 667 | 1 473 | | 2 720 | |
(d) |
|
(d) |
Note |
I, the undersigned, declare that I have carefully examined the construction of this boat and in my opinion it has been built in accordance with the Dabchick class rules and the provisions of this measurement schedule.
2005
Measurement
Page 4 of 5
DATE: _________________
2005
___________________________________ Signed - SAS Appointed Dabchick Measurer
Measurement
Page 5 of 5
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