Hydroplane

The Thought du Jour is: Why not stick a hydroplane on my high-speed electric kayak? This would slightly decrease the wetted hull but it would add theoretic stability which is better than nothing. The question is where to put the wing? The math is simple enough as long as you avoid variables like waves, spray, reflected spray, wind, load-shift junk in the water, hull flexing, turning, clapotis and hail. Where to put the wing? Eh?

Hydraulic Formulas

Hydraulic Pump Formulas

Formula For:	Word Formula:		Letter Formula:
PUMP OUTLET FLOW in Gallons/Minute	FLOW = RPM x PUMP DISPLACEMENT(Cu. In./Rev.) 231		Q = nd 231
PUMP INPUT POWER in Horsepower Required	HORSEPOWER INPUT = FLOW RATE OUTPUT(GPM) x PRESSURE(PSIG) 1714 x EFFICIENCY(Overall)		HP = QP or 1714 Eff GPM x PSIG 1714 Eff
PUMP EFFICIENCY OVERALL IN PERCENT	OVERALL EFFICIENCY (%) = OUTPUT HORSEPOWER x 100 INPUT HORSEPOWER		EffOV. = HPOUT x 100 HPIN
	OVERALL EFFICIENCY (%) = VOLUMETRIC Eff. x MECHANICAL Eff.		EffOV. = EffVOL x EffMECH
PUMP EFFICIENCY VOLUMETRIC IN PERCENT	VOLUMETRIC EFFICIENCY (%) = ACTUAL FLOW RATE OUTPUT(GPM) x 100 THEORETICAL FLOW RATE OUTPUT(GPM)		EffVOL = QACT. x 100 QTHEO.
PUMP EFFICIENCY MECHANICAL IN PERCENT	MECHANICAL EFFICIENCY (%) = THEORETICAL TORQUE TO DRIVE x 100 ACTUAL TORQUE TO DRIVE		EffMECH = TTHEO. x 100 TACT.
PUMP DISPLACEMENT IN CUBIC INCHES/REVOLUTION	DISPLACEMENT = FLOW RATE(GPM) x 231 PUMP RPM		CIPR = GPM x 231 RPM
PUMP TORQUE IN INCH POUNDS	TORQUE = HORSEPOWER x 63025 RPM		T = 63025 HP RPM
PUMP TORQUE IN INCH POUNDS	TORQUE = PRESSURE(PSIG) x PUMP DISPLACEMENT(CIPR) 2 x 3.14		T = PSIG d 2 x 3.14 or T = Pd 2 x 3.14
PUMP LIFE B10 BEARING LIFE	B10 HOURS OF BEARING LIFE = RATED LIFE HOURS x RATED SPEED(RPM) x (RATED PRESSURE(PSIG))3 NEW SPEED(RPM) (NEW PRESSURE(PSIG))3		B10 = RATED HRS. x RPMr x (P r)3 RPMn (P n)3

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