ORR Cert Form

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Data
Polars
Ratings
Line Drawing
Glossary

Certification #:

US41865

Issue Date:

05/24/2024

Build Date:

01/01/1977

Measure Date:

01/04/2024

Float Date:

01/04/2024

LOA:

19.681 ft

Beam Max:

4.948 ft

Rated Crew Wgt.:

1,080 lbs

Base Crew Wgt.:

1,464 lbs

Stab Index:

141.7 °

PIPA:

0.0231 ft²

Inventory Wgt:

1,016.0 lbs

Canting Angle:

0.0 °

List Angle:

0.0 °

Water Ballast:

0 lbs

Trim Water Ball:

0.000 ft³

Stored Power:

☑

Class:

Swan 65 Ketch

Builder:

NAUTOR

Rig Type:

Masthead Ketch

Prop Type:

3 Blade Feathering Exposed

Comment:

Keel Type:

Fixed Keel

Spinnaker:

Asymmetrical only flown with spinnaker pole

Hull Const:

Solid Glass

Mast Const:

Aluminum

Offset File:

SWN65KCH.OFF

Translated 9 USA61577

ORR Type:

Offshore

Measurement:

Full Measured

Valid Year:

2024

General Purpose Handicap(GPH):

555.6 SpM

2024 Offshore Racing Rule Certificate Data

Genoa/Jib

IG:

24.090 ft

7.440 ft

SFJ:

0.000 ft

JLP:

8.790 ft

FSP:

0.120 ft

JLU:

22.789 ft

JH:

0.080 ft

JMGT:

1.100 ft

JMGU:

2.100 ft

JMGM:

4.350 ft

JMGL:

6.560 ft

JLE:

20.200 ft

Area Jib:

102.1 ft²

Fstay Adj:

Via Backstay

Inner Fst Adj:

Adjustable

Whisker Pole:

☐

Outrigger:

☐

Large Roach Headsail

ILRH:

0.000 ft

JLRH:

0.000 ft

LRHLP:

0.000 ft

LRHLU:

0.000 ft

LRHHB:

0.000 ft

LRHTW:

0.000 ft

LRHUW:

0.000 ft

LRHMW:

0.000 ft

LRHQW:

0.000 ft

LRHSHW:

0.000 ft

LRHF:

0.000 ft

LRHLE:

0.000 ft

Area LRH:

0.0 ft²

Mainsail/Mast

GO:

0.355 ft

MW:

0.320 ft

21.630 ft

6.423 ft

HB:

0.080 ft

MGT:

1.237 ft

MGU:

2.257 ft

MGM:

3.957 ft

MGL:

5.237 ft

Area Main:

80.6 ft²

Main Wt:

70.0 lbs

MDT1:

0.207 ft

MDL1:

0.423 ft

MDT2:

0.180 ft

MDL2:

0.285 ft

TL:

3.800 ft

Mast Wt:

0.0 lbs

Mast CG:

0.000 ft

BAS:

1.910 ft

Measurement Trim

SFFP:

1.136 ft

SAFP:

19.048 ft

FFM:

1.517 ft

FAM:

1.144 ft

SG:

1.025

Disp Empty:

33,048 lbs

LCB:

9.913 ft

VCGD:

-0.253 ft

VCGM:

-0.258 ft

Wetted Area:

70.1 ft²

Draft:

2.927 ft

ECE:

0.000 ft

LSM0:

15.097 ft

RMC:

889.4 ft·lbs

Sink/Float:

484.7 lb/in

MTCT:

310.89 ft·lbs/in

Mizzen

EB:

7.500 ft

PY:

13.790 ft

EY:

3.700 ft

HBY:

0.110 ft

MGTY:

0.790 ft

MGUY:

1.370 ft

MGMY:

2.340 ft

MGLY:

3.100 ft

Area Mizzen:

30.1 ft²

MDT1Y:

0.135 ft

MDL1Y:

0.245 ft

MDL2Y:

0.190 ft

MDT2Y:

0.135 ft

TLY:

2.200 ft

Owner(s):

Drago, Enrico

Propeller

Prop Dia.:

0.488 ft

PBW:

0.188 ft

Twin Prop Inst:

☐

ESL:

1.450 ft

EDL:

1.450 ft

PSA:

15.0 °

PSD:

0.032 ft

PHD:

0.090 ft

PHL:

0.183 ft

ST1:

0.050 ft

ST2:

0.180 ft

ST3:

0.190 ft

ST4:

0.750 ft

ST5:

0.280 ft

Sailing Trim

FF:

1.466 ft

FA:

1.087 ft

Disp Sailing:

35,697 lbs

LCB:

9.934 ft

VCGM:

-0.191 ft

Wetted Area:

72.5 ft²

Draft:

2.982 ft

Rated Length:

15.337 ft

LSM1:

15.298 ft

LSM3:

15.144 ft

LSM4:

16.945 ft

RM2:

919.4 ft·lbs

RM20:

829.9 ft·lbs

RM40:

686.2 ft·lbs

RM60:

493.5 ft·lbs

RM90:

269.0 ft·lbs

LPS:

127.3 °

Spinnaker(s)

ISP:

24.150 ft

SPL:

8.080 ft

SL:

0.000 ft

SMW:

0.000 ft

SF:

0.000 ft

Area Symm:

229.7 ft²

TPS:

8.080 ft

ASLU:

26.640 ft

ASLE:

20.770 ft

AMG:

13.090 ft

ASF:

12.240 ft

Area Asym:

255.2 ft²

Mizzen Staysail

YSD:

13.250 ft

YSMG:

8.300 ft

YSF:

7.400 ft

Area Staysail:

79.5 ft²

Translated 9 USA61577

2024 Offshore Racing Rule Certificate Polars

Table of Boat Speed Polars (knots)* (at True Wind Angles)

True Wind Speed	6 kts	8 kts	10 kts	12 kts	16 kts	20 kts	24 kts
Opt Beat Angle	47.8°	45.8°	43.7°	43.9°	40.4°	38.7°	38.1°
Optimum Beat	4.97	6.06	6.72	7.44	7.81	8.00	8.10
52°	5.37	6.64	7.60	8.17	8.64	8.86	8.99
60°	5.98	7.21	8.10	8.57	8.97	9.18	9.31
75°	6.65	8.01	8.69	9.04	9.44	9.66	9.85
90°	7.13	8.42	9.05	9.39	9.78	10.06	10.29
110°	7.21	8.53	9.16	9.59	10.12	10.45	10.70
120°	7.04	8.33	8.93	9.36	10.04	10.59	10.85
135°	6.09	7.28	8.19	8.73	9.52	10.17	10.78
150°	4.31	5.66	6.78	7.71	8.86	9.58	10.20
165°	3.40	4.54	5.62	6.59	8.13	9.03	9.67
180°	3.06	4.10	5.11	6.05	7.62	8.70	9.39
Optimum Run	6.19	6.85	7.58	7.86	8.32	8.86	9.46
Opt Run Angle	134.1°	139.0°	141.8°	148.2°	161.2°	170.4°	174.0°

* Speed through the water. Available as a Performance Package from the Offshore Racing Association with detailed polar charts and files to upload into popular tactical programs. Go to: https://offshoreracingrule.org/orr/polar-package"

Table of Time Allowances (sec/mile)*

True Wind Speed	6 kts	8 kts	10 kts	12 kts	16 kts	20 kts	24 kts
Opt Beat Angle	47.8	45.8	43.7	43.9	40.4	38.7	38.1
Beat VMG	1,078.5	851.8	741.6	671.4	604.9	576.3	564.6
52°	670.3	542.2	473.8	440.5	416.6	406.2	400.5
60°	601.8	499.6	444.4	420.1	401.2	392.0	386.5
75°	541.0	449.2	414.1	398.3	381.5	372.6	365.5
90°	505.2	427.5	397.9	383.5	368.2	357.8	349.9
110°	499.6	421.9	393.1	375.3	355.8	344.6	336.5
120°	511.5	432.2	403.0	384.8	358.4	339.9	331.9
135°	591.0	494.4	439.7	412.5	378.2	353.9	333.9
150°	723.8	603.6	523.5	466.5	406.3	375.7	353.1
165°	807.3	673.2	583.9	520.3	441.6	398.7	372.1
Run VMG	835.8	696.9	604.5	538.7	457.2	411.9	382.7
Opt Run Angle	134.1	139.0	141.8	148.2	161.2	170.4	174.0

* Sec/mile rating assume gybing downwind when target angles are deeper than best VMG angles.

Custom Ratings (TCF) ORA works with OA's to create custom ratings for your race course and wind conditions.

	TOT (Spin)

Chicago Mac Upwind
Chicago Mac AP
Chicago Mac Offwind
Bayview Mac
California Offshore
Pacific Cup
Transpac (Approx.)
Puerto Vallarta
Cabo San Lucas
Acapulco WW/LW
Acapulco Random
Acapulco WW/LW5
Acapulco Stat Fit
San Francisco Bay

General Ratings (TCF)

	TOT (Spin)

Ocean Non Spinnaker
Offshore Offwind

GPH Rating (SPM)

	TOD (Spin)

GPH

Performance Metrics

SA/D Dnwind:

34.33

SA/D Average:

27.15

SA/D Upwind:

19.97

D/Length:

275.7

Ave Perf Screen:

9.8

Ratings by Wind Speed (TCF)

	TOT (Spin)
	Light	Medium	Heavy
Closed Course
WL 50/50
WL 60/40

Performance Curve Scoring (PCS) Ratings (SPM)

	TOD (Spin)
	6kt	8kt	10kt	12kt	16kt	20kt	24kt
Closed Course
WL 50/50
WL 60/40
Newport to Bermuda
Marion to Bermuda

Translated 9 USA61577

2024 Offshore Racing Rule Certificate Ratings

Translated 9 USA61577

2024 Offshore Racing Rule Certificate Line Drawing

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Label	Definition	Values
CERTIFICATION #		text
ORR TYPE	Configuration describes the boats configuration in relationship to other prior certificates. It can be left blank if a boat has only one certificate. It has a maximum of 20 characters.	text
SKU COPIED FROM		text
ISSUE DATE		date
MEASURE DATE		date
FLOAT DATE		date
BDY		length
EB		length
FF		length
GO		length
IG	The height of highest Genoa/Jib termination point above the sheer line.	length
ILRH	The height of Large Roach Headsail termination point above the sheer line.	length
ISP	The height of highest spinnaker termination point above the shear line.	length
LOA	The overall length of the boat including the whole hull. Do not include spars or projections fixed to the hull such as chainplates, bowsprits, boomkins, pulpits, etc..	length
SFFP		length
YSD		length
BEAM MAX	The maximum width (beam) of the boat measured at deck level at the widest point between the port and starboard sides.	length
SA/D DNWIND	A sailboat metric for express a Power to Drag ratio. Downwind SA/D = Downwind Sail Area/(displacement)^.667	number
FA		length
J	The distance between the front of the mast and the headstay termination on the deck at the sheer line.	length
JLRH	The distance between the front of the mast and the Large Roach Headsail tack point at the sheer line.	length
MEASUREMENT	Configuration describes the boats configuration in relationship to other prior certificates. It can be left blank if a boat has only one certificate. It has a maximum of 20 characters.	text
MW		length
PY	The distance between colored bands on the mizzen mast, or the maximum luff length of the Mizzen.	length
SAFP		length
SPL	The length of the spinnaker pole (or whisker pole), when it is attached on the mast, and set in a horizontal position fore and aft, measured from the forward face of the mast to the forward most point of the pole and fittings.	length
YSMG		length
SFJ		length
SA/D AVERAGE		number
BASY		length
CREW	The aggregate weight of the crew in lightweight clothing used in the calculations of ratings.	weight
DISP SAILING	The calculated displacement of the boat in sailing configuration, including equipment and crew.	weight
EY	The distance between colored bands on the boom, or the maximum foot length of the Mizzen.	length
FFM		length
JLP	The shortest distance from the clew of the Jib to the luff.	length
LRHLP	The shortest distance from the clew of the Large Roach Headsail to the luff.	length
P	The distance between colored bands on the mast, or the maximum luff length of the Mainsail.	length
RIG TYPE	The type (style) of rig the boat uses.	text
SL	The longest length of a Symmetric Spinnaker luff and leech measured along the edges of the sail from head to foot.	length
SA/D UPWIND		number
VALID YEAR		text
YSF		length
RIG TYPE	The type (style) of rig the boat uses.	text
BASE CREW WGT.	The caluclated weight of the crew in used in the calculations of ratings. It is calculated with a formula with inputs of Length, Displacement, Stability and Beam.	weight
E	The distance between the colored bands on the boom, or the maximum foot length of the Mainsail.	length
FAM		length
FSP		length
HBY	The width of the Mizzen headboard.	length
LCB		length
LRHLU	The length of the luff shall normally be the distance between the lowest part of the sail of the luff at the tack and the highest point of the sail on the luff at the head.	length
SMW	The Symmetrical Spinnaker measurement between the midpoints of the luff and leech.	length
STAB INDEX		degree
AREA STAYSAIL		area
D/LENGTH	Boat Metric for comparing designs and Speed. DLR = Displacement/(LWL)^3	text
HB	The width of the Mainsail Headboard.	length
JLU	The length of the luff shall normally be the distance between the lowest part of the sail of the luff at the tack and the highest point of the sail on the luff at the head.	length
LRHHB	The width of the Large Roach Headsail head or headboard.	length
MGTY	The shortest distance from the seven-eighths-leech point of the Mizzen to the luff.	length
SF	The Symmetrical Spinnaker distance between the tack and clew, measured by the shortest path.	length
SG	The specific gravity of the water shall be measured at this time and recorded as SG. The water shall be sampled from a level 0.3m (one foot) below the surface.	number
VCGM		length
ABS PLAN
DISP EMPTY	The dry weight of the boat with all loose equipment removed. This is undoubtedly the most frequent question by owners since in almost all cased the "Measured Displacement" used for ORR-Ez ratings is greater than the "Brochure Displacement" used for publications and posted on Sailboatdata.com ORR-Ez uses the median of the boats that have been measured for ORR,ORC,IRC, Americap, IMS	weight
ECE		length
INVENTORY WGT		weight
JH	The width of the Jib head or headboard.	length
LRHTW	The shortest distance from the seven-eighths-leech point of the Large Roach Headsail to the luff.	length
MGT	The shortest distance from the seven-eighths-leech point of the Mainsail to the luff.	length
MGUY	The shortest distance from the three-quarter-leech point of the Mizzen to the luff.	length
AREA SYMM		area
WETTED AREA		area
TPS	The tack point of an asymmetric spinnaker (mounted on the centerline of the boat, to the deck or to a sprit) measured from the front of the mast to the tack point of the sail, perpendicular to the water.	length
ASLU	The Asymmetrical spinnaker luff length.	length
AVE PERF SCREEN	Average perf screen is a metric that is used by some OA's for establishing fleet splits that are based on the 'Sportiness' of a boat. Mathematically it is Average Sail Area Displacement Ratio / Displacement Length Ratio * 100 to make it readable.	number
CANTING ANGLE		degree
DRAFT	The maximun depth of the boat (keel) below the waterline.	length
JMGT	The shortest distance from the seven-eighths-leech point of the Jib to the luff.	length
LCB		length
LRHUW	The shortest distance from the three-quarter-leech point of the Large Roach Headsail to the luff.	length
MGMY	The shortest distance from the half-leech point of the Mizzen to the luff.	length
MGU	The shortest distance from the three-quarter-leech point of the Mainsail to the luff.	length
VCGD		length
ASLE	The Asymmetrical Spinnaker leech length.	length
JMGU	The shortest distance from the three-quarter-leech point of the Jib to the luff.	length
LIST ANGLE		degree
LRHMW	The shortest distance from the half-leech point of the Large Roach Headsail to the luff.	length
MGLY	The shortest distance from the quarter-leech point of the Mizzen to the luff.	length
MGM	The shortest distance from the half-leech point of the Mainsail to the luff.	length
PROP TYPE	The type (style) of propeller the boat uses; or to indicate the use of an Outboard motor.	text
RATED LENGTH	The Rated Length of a boat is the effective sailing length used to predict boat speeds and ratings. This is calculated in the sailing conditions which includes crew, gear and sails. It includes the effects of bow and stern overhangs.	length
VCGM		length
AMG	The measurement between the midpoints of the Asymmetrical Spinnaker luff and leech.	length
JMGM	The shortest distance from the half-leech point of the Jib to the luff.	length
LRHQW	The shortest distance from the quarter-leech point of the Large Roach Headsail to the luff.	length
LSM1		length
MGL	The shortest distance from the quarter-leech point of the Mainsail to the luff.	length
PROP INSTALL	The type (style) and placement of mounting for the propeller.	● Exposed, ● In Aperture, ● Strut Drive, ● Other, ● Exposed Other, ● Exposed Twin, ● Housed Shaft, ● Pre 1987, ● Old Strut, ● Exp No Strut, ● No Prop,
AREA MIZZEN	The total area (square feet/meters) of the Mizzen.	area
WATER BALLAST		weight
WETTED AREA		area
COMMENT		text
ASF	The Asymmetrical Spinnaker foot length.	length
DRAFT	The maximun depth of the boat (keel) below the waterline.	length
JMGL	The shortest distance from the quarter-leech point of the Jib to the luff.	length
LRHSHW	The measurement between the midpoints of the Large Roach Headsail luff and leech.	length
LSM3		length
MDT1Y		length
AREA MAIN	The total area (square feet/meters) of the largest Mainsail.	area
TRIM WATER BALL		volume
JLE		length
LRHF	The length of the foot of the Large Roach Headsail.	length
LSM0		length
LSM4		length
MDL1Y		length
MAIN WT		weight
STORED POWER
AREA ASYM	This is the rated Sail area after any rule based limitations.	area
LRHLE	The length of the leech of the Large Roach Headsail.	length
MDT1		length
RM2		force
RMC		force
KEEL TYPE
SPINNAKER	The type of spinnaker(s) this boat flies. Include all types.	● -- select --, ● None, ● Asymmetrical tacked centerline on bow, sprit or prod, ● Asym only on centerline, ● Asym only on moveable pole, ● Asymmetrical only flown with spinnaker pole, ● Symm only on moveable pole, ● Symmetrical flown with spinnaker pole, ● Both Symmetrical & Asymmetrical flown with spin pole, ● Symm & Asym on moveable pole, ● Symm on pole & Asym on centerline,
BOW SHEER X		number
LARGE ROACH HEADSAIL	Answer Yes if you carry a headsail with a midgirth-to-foot measurement ratio of greater than 50% but less than 75%.	text
MDL1		length
MDL2Y		length
MDT2Y		length
RM20		force
SINK/FLOAT		weightpersinkage
AREA JIB		area
AREA LRH	The total area (square feet/meters) of the largest Large Roach Headsail.	area
FSTAY ADJ
MDT2		length
MTCT		momentpertrim
RM40		force
TLY		length
HULL CONST		text
INNER FST ADJ
MDL2		length
RM60		force
MAST CONST		text
WHISKER POLE
OFFSET FILE		text
OUTRIGGER
RM90		force
TL		length
LPS		degree
MAST WT	MWT	weight
MAST CG	MCG	length
BAS		length
BD		length

Rating Types
Rating Type	Definition
Closed Course
WL 50/50
WL 60/40
Marion to Bermuda
Newport to Bermuda
GPH	General Purpose Handicap
Ocean Non Spinnaker
Offshore Offwind

Wind Types
Wind Type	Definition
6kt
8kt
10kt
12kt
16kt
20kt
24kt
Light
Medium
Heavy

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