COXLESS QUAD SCULLS

In this example, we have used a hull designed for FISA by Klaus Filter. The hull has a design displacement volume of D=0.412 m3; the underwater portion has length L=11.82 m, draft T=0.166 m, and beam B=0.412 m. The offsets of the hull were digitised from lines drawings supplied by Stuart Wilson of Jeff Sykes and Associates, and were then scaled to nominal displacements for the various classes.

The following table shows the dimensions of the underwater portion of the hulls used for each class. For all cases, we have assumed that the hull and other deadweight weighs mB=76 kg. Nominal average rowers' weights are m1=57 kgs for LW, m1=75 kg for HW, m1=72 kgs for LM, and m1=95 kg for HM.

Class
Volume
(m3)
Length
(m)
Draft
(m)
Beam
(m)
LW 0.304 10.681 0.150 0.370
HW 0.376 11.465 0.161 0.397
LM 0.364 11.342 0.159 0.393
HM 0.456 12.227 0.172 0.424

The following table shows the sectional times for the various classes obtained by averaging results from three recent world championship events. Also shown are the sectional times estimated using the present mathematical model and the peak force (to the nearest Newton) required to achieve the same finishing time as the (averaged) race results.

Class
Source
500m
1000m
1500m
2000m
LW
Race Data
Fmax=200N
 97.5
94.3		 197.7
195.1		 298.3
296.8		 397.0
396.9
HW
Race Data
Fmax=251N
 91.7
90.3		 187.7
187.6		 283.6
283.3		 379.9
380.6
LM
Race Data
Fmax=280N
 86.4
84.8		 174.4
173.9		 263.2
263.8		 353.5
353.7
HM
Race Data
Fmax=339N
 85.2
83.3		 173.2
171.3		 260.7
259.3		 347.1
347.2