P35 Design Information

 

 

This section contains the technical specifications and the design analysis and ratios for the as manufactured Pearson P35


Note: Measurements below pertain specifically to a 1979 model
and may not represent all model years.

 

 


 

P35 Top & Side Views

  


Main Sail (Extra Leech added)


Genoa

 


Pearson 35 designed by Shaw

I
40.70

ISP
40.70

J
13.80

SPL
13.80

P
35.70

E
15.20

Py
0.00

Ey
0.00

 

Draft
3.75

C/B
7.50

Prop
Aprtr

Beam
10.0

Disp
13000

LWL
25.00

UP S/D
16.0

DW S/D
32.7

D/L
371

Year
1968

 

Thanks to Bacon Sails for the graphics and P35 Sail Table


Mast, Standing Rigging and Spreaders

See Mast Photographs and Measurements also.


Horizontal Measurements


Vertical Measurements


Rudder and Prop Aperture

 


Design Analysis Ratios
(As measured or calculated from Mikhaya, a 1979 model)

LOA or LOH  Length Overall/Length of Hull

35'-2"

LWL  Length at Waterline

25'-2"

DWL Design Waterline (designer estimate)

25

Bmax  Beam at it's maximum width

10-0"

BWL
Approximate Water line Beam (Bmax x 0.9)

9'-0"

Draft (Center Board Up)

3-9"

Draft (Center Board down)

7-6"

Displacement (Pearson Published light ship weight)

13,000 lbs.

Dtotal
Displacement total includes payload

13,000 + 2000 = 15,000 lbs.

B
Ballast as built (Lead enchased in Fiberglass)

5,400  lbs.

SA 
Sail area (as published)

550 sq/ft

SA 
Sail area (calculated)

Fore-triangle ([IxJ]/2) + Main ([PxE]/2)  (Boom was raised 7", new main sail has extended leech.)

279.5' + 269' = 548.5  sq/ft

MH  Mast Height Above LWL (DWL)

44-6"

Headroom (Main Salon Area)

6-3"

Cockpit Length

95"

Power

30h Diesel

Fuel

18 gal

Fresh Water Capacity (Bow-45, Starb-25, Port-25)

78 gal

  J       Dimension  (ft)
(Measured from head stay sail shackle with a straight line to the mast clearing the deck)

13'-9"

  E/B  Dimension  (ft)
(Measured from aft side of the mast to the end of the boom sail attachment)

15'-2"

  I       Dimension  (ft)

40'-8"

  P      Dimension  (ft)
(Measured from top of boom/mast junction to the mast head attachment for the mainsail)

35'-6"

HS
Hull Speed (1.34 x √LWL) (knots)

6.72 knots

HS (measured)
Know meter compared to GPS

7.2 knots

SA/D 
Sail Area Displacement Ratio (SA/[Disp/64]0.667) (

15.8

LBR
Length-Beam Ratio (LOH/Bmax)

3.52

BR
Ballast Ratio % (Ballast wt/displacement x 100)

42

DLR
Displacement-Length Ratio (Displacement/2240)/(0.01 x LWL)3

364

MCR
Motion Comfort Factor (Disp/0.65x(0.7 LWL +0.3 LOA)xBeam1.33

 33.41

CSV 
Capsize Screening Value  = Bmax/(Displacement/64.2)0.334

1.69

Yacht Class for IMS

PSN35

PHRF  (general)

174

 

Reference Nigel Calder's, Cruising Handbook, International Marine 2001 and the excellent work done by Dan Pfeiffer,

 

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