595-543-E 12-07-03 1(3)

Correct information – Correct rig

Spars and rigging are the most exposed parts of a sailing yacht. Safety on board and
performance puts high demands on strength and functional design. Our technical
knowledge and long experience guarantee the quality but, to make everything suit
your boat, we are completely dependant on the information you give us. To make it
possible for our designers to provide you with the best rig, we need the following
information about your boat:

For definitions of measures, please see "Seldén definitions - Rig fact measures", 595-566.

1. Hull and spars. Enclosed form ”Rig facts” filled in (a drawing of the rig is

desirable).

The distance from the top of the keelson to the top of the coach roof, where the mast

passes through the deck, is important, so that internal and external sealings and other

fittings can be fitted in their correct positions in relation to the deck.

This dimension (denoted ”Q” on ”Rig facts”) must therefore be stated. You can not

measure the dimension on the drawing as it almost always differs from the actual

dimension on the hull. You should note that there can be considerable differences if the

measurement is taken with the yacht resting on its keel or floating in the water. Q is less

when the yacht is resting on its keel.

2. Standing rigging. Our experience has taught us that the drawing can not provide

accurate measurements.

We can calculate the lengths based on information given by you, on the form

”Chainplates”.

Information given by phone must be confirmed by letter, fax or e-mail, in order to avoid any

misunderstanding.

We thank you, in advance, for your cooperation.

Yours sincerely

Seldén Mast AB

www.seldenmast.com

Sweden: Seldén Mast AB • Tel: +46 (0)31 69 69 00 • info@seldenmast.com	Denmark: Seldén Mast A/S • Tel: +45 39 18 44 00 • info@seldenmast.dk
UK: Seldén Mast Ltd. • Tel: +44 (0)1329 50 40 00 • info@seldenmast.co.uk	The Netherlands: Seldén Mid Europe B.V. • Tel: +31 (0)111-698 120 • info@seldenmast.nl
USA: Seldén Mast Inc. • Tel: +1 843-760-6278 • info@seldenus.com	France: Seldén Mast SAS • Tel: 33 (0) 251 362 110 • info@seldenmast.fr
Seldén and Furlex are registered trademarks of Seldén Mast AB

Seldén’s notes	595-543-E 12-07-02 2(3)
Rig data no.
Sales manager

Rig facts

Information required for calculation of spars and standing rigging.

A. Yacht: Customer: Address: Telephone: Fax: E-mail: *For definitions of measures, please see "Seldén definitions - Rig fact measures", 595-566.
B. Rig J Cap shroud (V1) Forward lower shroud (D1F) Aft lower shroud (D1A) Cutter Stay (CS) Baby/inner forestay (BS/IF) Lat Long Mast Yacht	Masthead Carbon mast Sets of spreaders 1, 2, 3 Fractional Conventional mast Furlex jib furling system Deckstepped In-mast furling mast Top mast spin Keelstepped Tapered mast Other rigging particulars: ……………………………………………………………………………….……………………………………………………………………………………….………
Forestay height FH = mm Cutter stay height CSH = mm Main sail luff length P = mm Boom height (top of boom) BH = mm Bury Q = mm Main sail foot length E = mm Main sheet distance from aft face of mast S = mm Forestay chainplate infront of mast. J = mm Spinnaker pole length SPL = mm Coach roof height above cap-chainplate DH = mm Coach roof height above waterline WLH = mm
Location of chainplates Lat Long V1 mm D1A mm D1F mm BS/IF mm CS mm
C. Righting moment (RM) Alt. 1 RM acc. To IMS 1º/20º/40º (IORº) kNm Alt. 2 RM at 30º kNm ( Seldén heeling test / designers) Given RM includes Yacht empty Crew members on rail Yacht equipped	Alt. 3 The righting moment can be approximately estimated if the following information is given: Yacht empty Yacht equipped Length over all mm Displacement kg Max beam mm Ballast kg Draft mm Bulb/Wing keel Centerboard draft board up/down / Ballast board/other /
Please check and sign this form and return it to Seldén. Signature, order only Blockletters Date Remark: Measurement on which calculation of lengths of standing rigging shall be based, see overleaf.

595-543-E 12-07-02 3(3) Use “mm” Chainplates

Chainplate below coach roof “+” Chainplate above coach roof “-”

Yacht:
Owner:

Top of coach roof Top of keelson After lower shroud (D1A) Back stay (PS) Forward lower shroud (D1F) Baby/Inner fore stay (BS/IF) Cutter stay (CS) Fore stay (FS) Long Long Lat Cap shroud (V1) Geometric centre of mast *For definitions of measures, please see "Seldén
definitions - Rig fact measures", 595-566.

All measure to centre of symbol

DECK TIPCUP

–

H1 H2 H3 Thread

CONV. CHAINPLATE

Ø

PS FS CS D2 V1 D1A, D1F BS/IF D1F D1A

Mast rake:	Q:	(mm)
CHAINPLATE (mm)
Lat.	Long.	Vert.	Ø
V1
D1A
D1F
BS/IF
CS
FS
PS
DECK TIPCUP (mm)
H1	H2	H3	Thread
V1
D1
D1F

Please check and sign this form and return it to Seldén.
Signature, order only	Blockletters	Date