![]() | Specs and Info |
N O T E S
Pearson 10M Information Hull # 212 1978 DHP 6/15/2001, 8/28/03 Sail Number 212
PEARSON 10M DIMENSIONS Notes: LOA = 33.05 length overall (on deck) Beam = 11.0 beam overall Draft = 5.93 draft LWL = 28.33 [1] length waterline Sail Area = 524 SF sail area (100% foretriangle) Displacement = 12,441 lbs [2] Ballast = 5,445 lbs Mast Height Above LWL = 48 BWL = 9.25 [3] beam waterline DISP CUFT = 181.53 [3] displacement in cubic feet DISP LBS S.W. = 11618 [3] displacement in lbs of salt water WA = 200.6 SQFT [3][4] wetted area of hull DESIGN RATIOS Notes: L/B = 3.0 length to beam ratio BR = 44 ballast ratio LWL/B = 2.57 waterline length to beam ratio LWL/BWL = 3.11 waterline length to waterline beam ratio OR = 14% overhang ratio (LOA-LWL)/LWL WPA = 170.4 [5] Waterplane Area WPL = 73.9 lbs/sf [5] Waterplane Loading (DISP/WPA) CWP = .65 Coefficient of the Waterline Plane itWP = 810 feet4 Moment of intertia of the Waterline Plane LBS/IN = 909 [3] weight to imerse hull 1" below DWL MT1 = 1096 FT LBS [3] Trimming Moment = moment to change trim by 1" LPS = 123 deg [6] Limit of Positive Stability Cp = 0.543 [3] prismatic coefficient LCB = 0.534 [3] longitudinal center of buoyancy VCB = -.81 [6] vertical center of buoyancy above LWL VCG = -.29 [6] vertical center of gravity above LWL SA/D = 15.6 sail area displacement ratio D/L = 245 displacement length ratio CSF = 1.9 capsize screening formula MCR = 26.3 motion comfort ratio
More info on ratios Polar Diagrams and Stability Curve Calculation of Angle of Vanishing Stability
Boat | Average | New England |
Narragansett | Long Island Sound |
Eastern CT |
W-LIS | Mid Atlantic |
Chesapeake | Lake Michigan |
Detroit | Austin YC | Northern California |
So CA | Schell Regression Formula |
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spin | jam | spin | spin | jam | spin | spin | Jam | spin | spin | spin | spin | jam | spin | spin | spin | spin | spin | |
10M | 146.3 | 168.3 | 141 | 150 | 173 | 150\A0 | 147 | 170 | 150 | 150 | 156 | 144 | 162 | 144 | 144 | 147 | ||
10MTM | 143.3 |   | 135 | 150\A0 | 150 | 144 | 144 | 137 |
Mast height from water = 48' (TM 50') Top of antena from water = 52' Extrusion Specs Extrusion - Sound Spars 8755 tapered (8755T?) Dimensions (extrusion only) length 49.6' (TM 51.5') overall size 8.75" x 5.5" sail track 5/8" wall thickness 0.16" weight 4.8 lb/ft = 238 lbs moments of inertia 16, 33 in^4 Mast boot SS-8755MB (info from rigrite.com) Mast Boot to fit Sound Spar 8755 and 8755T Oval Mast Sections (8.75" x 5.5") and special Pearson Cast Deck Collar. Hard molded white PVC Mast Boot is 2 3/4" high x 10 3/4" long x 8" wide. As used on Pearson 36, 419, 424 and 10M. Spreaders - aluminum airfoil sections length = 38-1/2" (-1/2 to wire center) width = 4-1/2" tapers to 2-1/4" stating 14" from base thickness = 1-1/2" tapers to 1/2" stating 14" from base The spreaders may be RigRite SP450. sheaves - aluminum with bronze bushings overall diameter 3.75" diameter at groove 3.25" thickness 0.625" bushing OD (apr) 0.65" bushing ID 0.518" [7] shaft diameter 0.500"[7]Measurement after 24 years of service
BOOM
actual measured dimensions (extrusion only) Wall thickness Overall Inside length 11'4" height 6" width 4" length to forward edge of stripe sail track slot widthWINCHES (OEM)
2 Lewmar #8 halyard 2 Lewmar #43 2 speed sheet (2 Lewmar #30 2 speed spinnaker sheet)RIGGING (as specefied in the 1977 parts catalog)
Wire Type Diam Length [8] pin-to-pin [9] Headstay 1x19 3/8 43.438 45.17 Backstay 1x19 3/8 44.813 46.36 Upper Shrouds 1x19 5/16 40.771 41.96 Lowers 1x19 9/32 21.666 22.88 Fwd Lowers 1x19 9/32 21.708 22.95 Topping Lift 7x19[8] length of wire only, no turnbuckles or toggles (from Pearson parts catalog) - This will be correct only for the OEM Navtec turnbuckles
TURNBUCLES Size Headstay Backstay (base) Shrouds 10M #212 CLEVIS PIN SIZES CLEVIS PINS Diameter Length headstay 5/8" 1" backstay 5/8" 1" upper shrouds top 5/8" 1" upper shrouds bottom 5/8" 7/8" lower shrouds top 1/2" 3/4" lower shrouds bottom 1/2" 7/8" RUNNING Line Size Length main H 3/8 83' jib H 3/8 90' spin H 3/8 90' outhaul traveler topping L pole lift pole DH mainsheet 1/2 82' jib sheet 7/16 40' genoa sheet 7/16 48' spin sheet 66' asym sheets 75' Note: Halyard lengths are at the mast. Add about 14' to run back to cockpit. KEEL Lead Weight 5445 lbs 5/8" Bolts Torque 70 lb-ft [10][10] Source: Bill Shaw in Pearson Current news letter Vol. 4 #3, 1998.
RUDDER Construction Actual measured dimensions Shaft OD = 1.5"Sail Dimension Information
All dimensions in feet.
Mast height from water = 48' (50' TM) Standard #212 Tall Mast Tall Mast/Sprit [11] I = 44.0' I = 44.5' I = 46.0' I = 46.0' J = 14.2' J = 14.2' J = 14.2' J = 15.5' P = 38.5' P = 38.5' P = 40.5' P = 40.5' E = 11.0' E = 11.0' E = 11.0' E = 11.0' SA= 524sf SA= 528sf SA= 549sf SA= 579sf (sail area) MA= 212sf MA= 212sf MA= 223sf MA= 223sf (main area) FA= 312sf FA= 316sf FA= 327sf FA= 357sf (100% fore triangle area) [11] Sprit was factory option. It added about 15" to the J dimension. Not sure about exact measurement. (photo) SAIL LUFF LEECH FOOT LP AREA %J Wt Main 38.5 11.0 212 #1 42.0 41.0 21.7 20.6 433 145 #2 41.2 35.4 20.6 17.8 370 125 #3 40.7 34.0 16.3 13.4 272 94 7.5 WJib Drift Spin Spinnaker Dimensions by IOR formula: Max Girth = 1.8 x J = 1.8 x 14.2' = 25.56' Luff = .95 x (J^2 + I^2)^1/2 = .95 x (14.2^2 + 44.0^2)^1/2 = 43.92'S Y S T E M S
HEAD Jabsco 29120-0000 Repair parts kit #29045-0000? W&C (213)632-2600 Intake 3/4" ID hose to seacock under head sink HOLDING TANK 12 gallons Hose Fittings: ?? L=24" W=13.9" H=9.75" WATER TANKS Forward Rectangular 23.5 gallons (apr) 1-1/4" filler hose fitting 5/8" drain and vent hose fittings L=36" W=17.25" H=9" Port/Starboard The ends are triangular with a slightly convex side (on the hull), with two baffles inside. 25 gallons each (apr calculated from dimensions) 1-1/4 filler hose fitting? 5/8" drain and vent hose fittings? L=49.5 W(fwd)=20 H(fwd)=10.5 W(aft)=24 H(aft)=11 Total capacity 23.5 + 25 + 25 + 6 (water heater) = 79 gallons (56 without fwd tank) POWER ELECTRICAL BATTERIES 2 group 27 deep cycle Astro Lite 27DCM COMBO reserve capacity 165 cranking amps 750 march 2000 install date
Propeller Shaft hull #212, Volvo MD11C with Walter V-Drive diameter = 1-1/8" material = Aquamet 19 stainless steel (oem was bronze) lenght to small end of taper = 49-5/8" thread length = 1-1/16" (to fit J-Prop feathering propeller) thread = 3/4x10tpi cutlass bearing = 1-1/8 ID, 1-1/2 OD, 4-1/2 long Stuffing Box ( hull 212 with 1-1/8" diameter prop shaft) packing size = 3/16" Packing length = apr 4-3/8", 24" will make 5 pieces, 4 fit in gland Stuffing Box Hose = 2-1/4" IDE L E C T R I C D R I V E S Y S T E M 2 0 2 1
Electric Drive Electric Motor Motor: Motenergy ME1616 Liquid Cooled Operating Voltage: 48 (as installed) Max RPM @48V: 2400 Max continuous power with cooling/no cooling: 12kW / 6.7kW Max Temp: 160C Coolant Flow: 4 to 10 liters/min Weight: 25.2 kg (56 lbs) Traction Battery LiFePo (16) Prismatic Cells Thunderstruck BMS Battery Voltage: 48 Battery Capacity: 13,400 Whr Useable Capacity at 80% DoD: 10,720 Whr Max Output: 13.4kW (1.0 C rating) Assembled Weight: apr 200 lbs (w/case, bms, buss bars, etc) Dimensions: 29.25x13x10.25 (LxWxH) Charging Charger: Thunderstruck EV TSM2500 Time to Fully Recharge: 7 hrs at 1500 wattsO E M D R I V E T R A I N 1 9 7 8
Engine Volvo MD11C diesel 2 cylender hp = 23 @ 2500 RPM Oil Filter Fram PH3614 weight = 505 lbs Transmission Volvo Monoshift (no reduction, w/reverse gear) V-Drive Walter RV-10 SN 33097 (back-up SN 36615) 2:1 reduction gear Flange Dimension Overall diameter = 2.875 Counter bore = 1.250 - female on coupling bolt circle = 1.875 - 3 bolts Spicer bearing kit Dana 5-170X G200208190126 - SLK UPC 7 25975 11520 6 Upper Seal National Federal - Mogul Oil Seals 471765 1.187 x 2.000 x 0.250 Numbers from parts in v-drive SN 33097 Upper shaft bearings #14 Timken 17244 outer race Timken 17118 inner race #14A race marked Timken 07204 Lower shaft bearings #15 NACHI 5304 (replacement sent by Walter) 15A race marked Timken 07204 Output Shaft Seal #8 WP 15104-LBS marked on seal Hoses intake to strainer 3/4" strainer to v-drive 5/8" v-drive to water pump 5/8" water heater 5/8" engine to exhaust riser 5/8" exhaust elbow to muffler 1-5/8" exhaust muffler to stern 1-1/2"
Stanchions Angle of deck at stanchion positions as measured 10/2018 Stanchion position - deck angle #1 - 6 degrees #2 - 7 degrees #3 - 9 degrees #4 - 8 degrees +/- 1/2 degree Stanchion positions are moving aft Angle of stanchion bases Two with 3 degree angle four with 6 degree angle two with 9 degree angle
Galley Sliding Doors Dimensions 14-1/8" x 25-3/8" x 1/8" to 3/16" thick