BOATS

Spencer 87

Air temperature: 80ºF; humidity: 78%; seas: 3 to 4 feet;

4,150 gal. fuel, 550 gal. water, full stores.

Test Engine: 4/1,150-hp CAT C18 ACERT diesels

Transmission/Ratio: ZF 4000 pods, gear ratio 1.985:1

Props: ZF DG7 series props, 29x47

Price as Tested: $8,000,000

Spencer 87 - Final Boat Test Numbers:
RPM	Knots	GPH	Range	dB(A)
1000	15.6	32	1,820	N/A
1500	23.9	88	1,014	N/A
2000	35.0	198	660	86
2315	39.8	236	630	88
	Speeds are two-way averages measured w/ Furuno NavNet 3D GPS. GPH taken via Caterpillar electronic engine-monitoring system. Range is 90% of advertised fuel capacity. 65dB(A) is the level of normal conversation.
Numbers were provided by a Caterpillar engineer from a sea trial conducted on the same day as the Power & Motoryacht test.

This article originally appeared in the June 2012 issue of Power & Motoryacht magazine.


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