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BOATS

BOAT TESTS

Tiara 3900 Coronet

CONDITIONS DURING BOAT TEST

Air temperature: 80°F; humidity: 74%; seas: 1-2'

LOAD DURING BOAT TEST

379 gal. fuel; 120 gal. water; 11.4 gal. in holding tank, 3 persons, 150 lb. gear.

TEST BOAT SPECIFICATIONS

Test Engine: 2/480-mhp Cummins QSB6.7 diesels

Transmission/Ratio: Transmissions: ZF 85A, 2.50:1 gear ratio

Props: 24x33 4-blade

The Numbers

Tiara 3900 Coronet - Final Boat Test Numbers:
RPM KNOTS GPH RANGE dB(A)
1000 7.0 2.4 1,404 72
1500 9.1 7.2 609 78
2000 12.0 18.0 321 86
2500 18.5 26.4 337 85
3000 25.6 40.0 308 85
3320 30.1 50.8 285 89
Speeds are two-way averages measured with Garmin GPSMap 478. GPH taken from Cummins SmartCraft VesselView display. Range in nautical miles based on 90% of advertised fuel capacity. Sound levels measured at the helm. 65 dB(A) is the level of normal conversation.

OPTIONAL EQUIPMENT ON TEST BOAT

Noteworthy Options: ACR RCL remote spotlight ($2,780), teak-inlay swim platform with built-in ladder ($11,400), cockpit sunshade ($2,920), teak-and-holly cabin sole ($3,560).

On Location

Better Boat: Top to Bottom

The hardtop on the Tiara 3900The hardtop on the Tiara 3900 Coronet sports a high level of fit and finish, and its design works on a number of levels. The top provides great headroom to seated and standing passengers, and also has built-in lighting, skylights, vent hatches, and nicely joins an artfully curved windshield with a temper that worked well with my polarized sunglasses. The pillars are big enough to give you confidence in its sturdy structure, while lending a bit of privacy to the bridgedeck at the dock. There’s even an optional cockpit sunshade that mounts to the aft edge. But all this works that much better because the top just fits with the overall design of the boat.

This article originally appeared in the July 2013 issue of Power & Motoryacht magazine.

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