Certificate
Units: EnglishHINT: Any heading in blue typeface can be clicked on to see a full definition of the term. (help)
Class:
J/27
Configuration:
One Design
Sail Number:
Year Built:
1999
Builder:
TILLOTSON-PEARSON
Owner(s):
Sailor, Joe
Certificate #:
EZ10504-OD
Valid Year:
2022
Issue Date:
2022-01-10
Exp.Date:
2022-12-31
Offsets_file:
US18763.OFF
Cert Group:
ORR-Ez
Comment:
Rig Type:
Sloop
Forestay:
Fractional
Keel Type:
Fin
Prop Type:
None
Prop Install:
-
Prop Blades:
-
Prop Diameter:
0.00 ft
J/27 Template   J/27   
ORA Logo
ORR-Ez Logo
2022 ORR-Ez Certificate - EZ10504-OD
LOA:
8.41 ft
LWL:
7.01 ft
Rated Length:
7.66 ft
Beam Max:
2.60 ft
Draft:
1.51 ft
Draft Shoal:
1.51 ft
Disp Empty:
1,726 lbs
Disp Sailing:
2,229 lbs
Crew:
499 lbs
Water Ballast:
0 lbs
Wetted Area:
15.0 ft²
LPS:
110.7 °
RM20:
34.9 ft·lbs
Stab Index:
105 °
Spinnaker:
Symmetrical flown with spinnaker pole
Genoa/Jib Leech:
No Roach - Leech is straight
Large Roach Headsail:
No
Jib Furler:
No
Main Roller Furling:
No
Rig Dimensions
IG:
9.14 ft
ISP:
9.14 ft
ILRH:
0.00 ft
J:
3.20 ft
JLRH:
0.00 ft
P:
10.06 ft
E:
3.81 ft
EY:
0.00 ft
PY:
0.00 ft
SPL:
3.20 ft
TPS:
0.00 ft
Mainsail Meas.
HB:
0.15 ft
MGT:
0.83 ft
MGU:
1.49 ft
MGM:
2.48 ft
MGL:
3.20 ft
Area:
23.6 ft²
Jib/Genoa Meas.
LP:
4.96 ft
LPG %:
155.0 %
J Luff:
9.20 ft
J Leech:
8.69 ft
JH:
0.00 ft
JMGT:
0.62 ft
JMGU:
1.24 ft
JMGM:
2.48 ft
JMGL:
3.72 ft
Area:
22.8 ft²
Asymmetric Spin. Meas.
ASLU:
0.00 ft
ASLE:
0.00 ft
AMG:
0.00 ft
ASF:
0.00 ft
Area:
0.0 ft²
Symmetric Spin. Meas.
SL:
9.21 ft
SMW:
5.76 ft
SF:
5.64 ft
Area:
44.0 ft²
Large Roach Headsail Meas.
HB:
0.00 ft
TW:
0.00 ft
UW:
0.00 ft
MW:
0.00 ft
LW:
0.00 ft
MG:
0.00 ft
Foot:
0.00 ft
LP:
0.00 ft
LUFF:
0.00 ft
Leech:
0.00 ft
Area:
0.0 ft²
Mizzen Meas.
HBY:
0.00 ft
MGTY:
0.00 ft
MGUY:
0.00 ft
MGMY:
0.00 ft
MGLY:
0.00 ft
Area:
0.0 ft²
Aligned Time Allowance 4 Winds
TOD (Spin)
V.LightLightMediumHeavy
RANDOM LEG
W50/L50
W60/L40
MOSTLY WW
MOSTLY LW
Benchmark Ratings
TOT (Spin)TOD (Spin)
GPH
IR#
Standard PCS Ratings
TOD (Spin)
4681012162024
RANDOM LEG
W50/L50
W60/L40
MOSTLY WW
MOSTLY LW
Standard Ratings
TOT (Spin)TOD (Spin)
V.LightLightMediumHeavyV.LightLightMediumHeavy
RANDOM LEG
W50/L50
W60/L40
MOSTLY WW
MOSTLY LW
Aligned Time Allowance
TOD (Spin)
Aligned IR#
Aligned Ratings are based on the Farr 40 MH as Scratch Boat.
Performance Metrics
SA/D Dnwind:
40.27
SA/D Upwind:
27.65
SA/D Average:
33.96
D/Length:
138.3
Ave Perf Screen:
24.6
DnWind Perf Screen:
29.1
J/27 Template   J/27   
ORA Logo
ORR Logo
2022 ORR-Ez Certificate - EZ10504-OD
Spinnaker Ratings
Table of Time Allowances (sec/mile)* (at True Wind Angles)
True Wind Speed4 kts6 kts8 kts10 kts12 kts16 kts20 kts24 kts
Opt Beat Angle45.344.443.340.037.936.135.736.2
Beat VMG1,525.01,107.0911.2823.4780.7742.0728.9725.5
52950.32708.63602.93566.11547.89529.89520.77516.07
60856.27655.11576.42543.63527.38510.03500.36494.57
75792.29615.27552.54517.17500.62475.23459.05447.51
90790.32606.56535.98497.46475.66443.97422.27404.77
110789.61609.80543.44503.05468.55412.56377.33354.03
120829.86637.28563.57523.10490.50423.39358.93330.90
1351,105.0781.96629.69567.69528.56466.54399.68325.71
1501,353.4956.2762.8633.56570.81499.74441.95377.38
1651,509.51,066.5850.8705.3614.75526.52469.35413.24
Run VMG1,562.81,104.2880.8730.2636.4540.2481.7426.9
Opt Run Angle130.0136.6148.3152.7165.5173.3172.8171.4
* Sec/mile rating assume gybing downwind when target angles are deeper than best VMG angles.
Aligned Time Allowance 4 Winds
TOD (Non-Spin)
V.LightLightMediumHeavy
RANDOM LEG
W50/L50
W60/L40
MOSTLY WW
MOSTLY LW
Benchmark Ratings
TOT (Non-Spin)TOD (Non-Spin)
GPH
IR#
Standard Ratings
TOT (Non-Spin)TOD (Non-Spin)
V.LightLightMediumHeavyV.LightLightMediumHeavy
RANDOM LEG
W50/L50
W60/L40
MOSTLY WW
MOSTLY LW
Standard PCS Ratings
TOD (Non-Spin)
4681012162024
RANDOM LEG
W50/L50
W60/L40
MOSTLY WW
MOSTLY LW
Aligned Time Allowance
TOD (Non-Spin)
Aligned IR#
Aligned Ratings are based on the Farr 40 MH as Scratch Boat.
Performance Metrics
SA/D:
27.65
D/Length:
138.3
Perf Screen:
20.0
J/27 Template   J/27   
ORA Logo
ORR Logo
2022 ORR-Ez Certificate - EZ10504-OD
Non Spinnaker
Table of Time Allowances (sec/mile)*
True Wind Speed4 kts6 kts8 kts10 kts12 kts16 kts20 kts24 kts
Opt Beat Angle45.344.443.340.037.936.135.736.2
Beat VMG1,525.01,107.0911.2823.4780.7742.0728.9725.5
52950.32708.63602.93566.11547.89529.89520.77516.07
60856.27655.11576.42543.63527.38510.03500.36494.72
75792.29615.27552.54517.17500.62480.65467.78458.15
90785.41611.03550.12512.46484.33457.23439.59424.51
110855.90656.80580.27540.18509.64454.84409.51386.98
120992.88732.45614.86565.53531.49477.46421.43376.04
1351,309.28920.29729.90622.76570.50505.29451.87391.43
1501,608.511,092.03834.36692.53606.38525.11470.35415.83
1651,750.631,178.51892.64732.66630.04533.90475.34420.13
Run VMG1,781.21,198.2906.8743.4638.6540.2481.7426.9
Opt Run Angle171.8171.9172.0172.1172.3173.3172.8171.4
* Sec/mile rating assume gybing downwind when target angles are deeper than best VMG angles.
: Search:
Label Definition Values
AMGThe measurement between the midpoints of the Asymmetrical Spinnaker luff and leech.length
ANCHOR DISTlength
AREAThe total area (square feet/meters) of the largest Asymmetrical Spinnaker.area
AREAThe total area (square feet/meters) of the largest Headsail (Jib or Genoa).area
AREAThe total area (square feet/meters) of the largest Large Roach Headsail.area
AREAThe total area (square feet/meters) of the largest Mainsail.area
AREAThe total area (square feet/meters) of the Mizzen.area
AREAThe total area (square feet/meters) of the largest Symmetrical Spinnaker.area
ASFThe Asymmetrical Spinnaker foot length.length
ASLEThe Asymmetrical Spinnaker leech length.length
ASLUThe Asymmetrical spinnaker luff length.length
SA/D AVERAGEnumber
AVE PERF SCREENAverage 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
PERF SCREENAverage 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
BASBoom Above Sheerlength
BASYlength
BDlength
BDYlength
BEAM MAXThe maximum width (beam) of the boat measured at deck level at the widest point between the port and starboard sides.length
BOW SHEER Xnumber
BUILDERtext
COMMENTtext
CERTIFICATE #text
CONFIGURATIONConfiguration 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
CREWThe aggregate weight of the crew in lightweight clothing used in the calculations of ratings. This is the Maximum Crew Weight and any excess shall automatically suspend the validity of the Certificate.weight
ISSUE DATEtext
EXP.DATEtext
D/LENGTH(Disp Sailing/2240) / LWL 2/3text
D/LENGTHBoat Metric for comparing designs and Speed. DLR = Displacement/(LWL)^3text
DISP EMPTYThe 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, IMSweight
DISP SAILINGThe calculated displacement of the boat in sailing configuration, including equipment and crew.weight
DNWIND PERF SCREENDownWind 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
DNWIND SA/DA sailboat metric for express a Power to Drag ratio. Downwind SA/D = Downwind Sail Area/(displacement)^.667number
DRAFTThe maximun depth of the boat (keel) below the waterline.length
DRAFT SHOALThe shallowest Draft possible during sailing.length
EThe distance between the colored bands on the boom, or the maximum foot length of the Mainsail.length
EBlength
EYThe distance between colored bands on the boom, or the maximum foot length of the Mizzen.length
HBThe width of the Mainsail Headboard.length
HBYThe width of the Mizzen headboard.length
IGThe height of highest Genoa/Jib termination point above the sheer line.length
ILRHThe height of Large Roach Headsail termination point above the sheer line.length
ISPThe height of highest spinnaker termination point above the shear line.length
JThe distance between the front of the mast and the headstay termination on the deck at the sheer line.length
JHThe width of the Jib head or headboard.length
JIB FURLERIs a roller furling headsail (jib or Genoa) used while racing? What type?● No,
● Yes,
● Yes Above Deck,
● Yes Below Deck,
GENOA/JIB LEECHNo Roach: No width measurements (LP only); Has Roach: Has width measurements (roach may be convex or concave).● No Roach - Leech is straight,
● Has Roach or Hollow,
J LEECHlength
JLRHThe distance between the front of the mast and the Large Roach Headsail tack point at the sheer line.length
J LUFFThe 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
JMGLThe shortest distance from the quarter-leech point of the Jib to the luff.length
JMGMThe shortest distance from the half-leech point of the Jib to the luff.length
JMGTThe shortest distance from the seven-eighths-leech point of the Jib to the luff.length
JMGUThe shortest distance from the three-quarter-leech point of the Jib to the luff.length
KEEL TYPEThe type (style) of keel on the boat.● Fixed,
● Fixed w/ Winglets,
● Canting,
● Fin,
● Centerboard,
● Keel Centerboard,
● Fin with Bulb,
● Wing,
● Other,
LOAThe 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
LPThe shortest distance from the clew of the Jib to the luff.length
LPG %The width (LP) of the headsail expressed as a percentage of the J measurement.percentage
LPSdegree
FOOTThe length of the foot of the Large Roach Headsail.length
HBThe width of the Large Roach Headsail head or headboard.length
MWThe shortest distance from the half-leech point of the Large Roach Headsail to the luff.length
LEECHThe length of the leech of the Large Roach Headsail.length
LPThe shortest distance from the clew of the Large Roach Headsail to the luff.length
LUFFThe 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
LWThe shortest distance from the quarter-leech point of the Large Roach Headsail to the luff.length
MGThe measurement between the midpoints of the Large Roach Headsail luff and leech.length
TWThe shortest distance from the seven-eighths-leech point of the Large Roach Headsail to the luff.length
UWThe shortest distance from the three-quarter-leech point of the Large Roach Headsail to the luff.length
LARGE ROACH HEADSAILAnswer Yes if you carry a headsail with a midgirth-to-foot measurement ratio of greater than 50% but less than 75%.● No,
● Yes,
LWLThe length of the hull at the waterline.length
MAIN ROLLER FURLINGIs a roller furling mainsail used while racing? What type?● No,
● None,
● Yes In Mast,
● Yes In Boom,
FORESTAYChoose Masthead if the headstay terminates at the top of the mast. Choose Fractional if the headstay terminates anywhere below the top of the mast.● Masthead,
● Fractional,
MDL1length
MDL1Ylength
MDL2length
MDL2Ylength
MGLThe shortest distance from the quarter-leech point of the Mainsail to the luff.length
MGLYThe shortest distance from the quarter-leech point of the Mizzen to the luff.length
MGMThe shortest distance from the half-leech point of the Mainsail to the luff.length
MGMYThe shortest distance from the half-leech point of the Mizzen to the luff.length
MGTThe shortest distance from the seven-eighths-leech point of the Mainsail to the luff.length
MGTYThe shortest distance from the seven-eighths-leech point of the Mizzen to the luff.length
MGUThe shortest distance from the three-quarter-leech point of the Mainsail to the luff. length
MGUYThe shortest distance from the three-quarter-leech point of the Mizzen to the luff.length
MWlength
OFFSETS_FILEtext
PThe distance between colored bands on the mast, or the maximum luff length of the Mainsail.length
PROP BLADESThe number of blades the propeller uses.● 2,
● 3,
● 4,
PROP INSTALLThe type (style) and placement of mounting for the propeller. Note that Strut Drive is the proper choice for Sail Drives.● Exposed,
● In Aperture,
● Strut Drive,
● Other,
● Exposed Other,
● Exposed Twin,
● Housed Shaft,
● Pre 1987,
● Old Strut,
● Exp No Strut,
● No Prop,
PROP TYPEThe type (style) of propeller the boat uses; or to indicate the use of an Outboard motor.● Fixed,
● Folding,
● Feathering,
● Outboard,
● None,
PYThe distance between colored bands on the mizzen mast, or the maximum luff length of the Mizzen.length
RATED LENGTHThe 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
RIG TYPEThe type (style) of rig the boat uses.● Sloop,
● Ketch,
● Yawl,
● Gaff,
● Cat,
● Cat Ketch,
● Cutter,
● Other,
RM20force
SFThe Symmetrical Spinnaker distance between the tack and clew, measured by the shortest path.length
SKU COPIED FROMtext
SLThe longest length of a Symmetric Spinnaker luff and leech measured along the edges of the sail from head to foot.length
SMWThe Symmetrical Spinnaker measurement between the midpoints of the luff and leech.length
SPINNAKERThe type of spinnaker(s) this boat flies. Include all types.● None,
● Asymmetrical tacked centerline on bow, sprit or prod,
● Asymmetrical only flown with spinnaker pole,
● Symmetrical flown with spinnaker pole,
● Both Symmetrical & Asymmetrical flown with spin pole,
SPLThe 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
STAB INDEXdegree
TLlength
TLYlength
TPSThe 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
UPWIND SA/Dnumber
SA/Dnumber
WATER BALLASTweight
WETTED AREAarea
VALID YEARtext
Rating Types
Rating TypeDefinition
RANDOM LEGEqual distance on all points of sail; sailing in a circle. Default, all-purpose rating used when the other courses do not apply.
W50/L5050% VMG Up, 50% VMG Dn, no reaching.
W60/L4060% VMG Up, 40% VMG Dn, no reaching. Best fit for any W/L finishing upwind (3, 5, 7 legs)
MOSTLY WW80% VMG Up, 15% 90° Reach, 5% VMG Dn. Best fit for any race with less than 20% spinnaker carry.
MOSTLY LW50% VMG Dn, 40% 120° Reach, 10% VMG Up. Best fit for any race with more than 80% spinnaker carry.
Aligned IR#IR# TOD rating expressed relative to the ORR-Ez Scratch Boat (Farr 40)
GPHGeneral Purpose Handicap – A mix of Random Leg ratings for 8 and 12 knots of wind.
IR#A mix of VMG Up & Dn (1/3 each) and three reaching angles (60°, 90° ,120°, 1/9 each), for 10 and 12 knots. Designed to best approximate the relative ratings of PHRF.
So Cal OffshoreSo Cal Offshore
Bayview MAC ShoreBayview MAC Shore
So Cal Offshore OffwindSo Cal Offshore Offwind
Wind Types
Wind TypeDefinition
V.LightAverage wind less than 6 knots (100% 4 kts as extrapolated from polar plot curve)
LightAvg. wind between 6 & 10 kts (appx. 50% 6 kts, 25% 8 kts, 25% 10 kts as a weighted avg. of polar plot curve.)
MediumAvg. wind between 10 & 16 kts (appx. 25% 10 kts, 50% 12 kts, 25% 16 kts as a weighted avg. of polar plot curve.)
HeavyAvg. wind over 16 kts (appx. 25% 16kts, 50% 20kts, 25% 24 kts as a weighted avg. of polar plot curve.)
44 knot Wind speed for PCS Ratings.
66 knot Wind speed for PCS Ratings.
88 knot Wind speed for PCS Ratings.
1010 knot Wind speed for PCS Ratings.
1212 knot Wind speed for PCS Ratings.
1616 knot Wind speed for PCS Ratings.
2020 knot Wind speed for PCS Ratings.
2424 knot Wind speed for PCS Ratings.
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