Mangusta 80 - Comparison of propulsion plants

All measurements on both the old and the new propulsion systems were carried out by Seatek, an independent test organization. In parallel with the measurement process, the displays on the vessel's "BlueLine" on-board electronic control system were calibrated, i.e. adjusted in accordance with objective measurement values.

1. Mangusta 80

	Old propulsion plant	2000 Common Rail
Length	80-foot	80-foot
Weight	59 tons	57 tons

2. Engine

	Old propulsion plant	2000 Common Rail
Power	2x1350 HP	2x1500 HP
Torque	4181 Nm	4365 Nm
Weight	2533 kg	2250 kg
Size (L x W x H)	1913 mm x 1444 mm x 1328 mm	1533 mm x 1120 mm x 1230 mm
Tote displacem.	27 litres	22 litres
Speed range	600 min-1 -2450 min-1	600 min-1 - 2450 min-1
Injection	Mechanical. Unit pump	Electronic. Common Rail
Turbocharging	2 turbochargers	2 TBs. Sequential turbocharging
Transm. ratio	1,5:1	2,0:1
Propeller	Rolla 5-blade	France Helice, 5-blade (dia. 37", pitch 41") or Rolla 6-blade (dia. 38", pitch 38")

3. Maximum speed

	Old propulsion plant (Rolla 5-blade) Seatek measurem.	2000 Common Rail (Rolla 5-blade) Seatek measurem.	2000 Common Rail (France Helice) Own measurement
Max. speed	30 kn	38 kn	39,7 kn

4. Acceleration

	Old propulsion plant (Rolla 5-blade) Seatek measurem.	2000 Common Rail (Rolla 5-blade) Seatek measurem.	2000 Common Rail (France Helice) Own measurement
6-20 kn	38 sec.	32 sec.	27 sec. / 28 sec. / 25 sec.
6-25 kn	52 sec.	43 sec.	35 sec. / 33 sec. / 30 sec.
6-30 kn	83 sec.	56 sec.	45 sec. / 39 sec. / 37 sec.
6-35 kn	./.	80 sec.	61 sec. / 56 sec. / 56 sec.

5. Consumption / Range

	Old propulsion plant (Rolla 5-blade) Seatek measurem.	2000 Common Rail (Rolla 5-blade) Seatek measurem.	2000 Common Rail (France Helice) Own measurement
Diesel at 30 kn	500 ltr/hr.	450 ltr/hr.	430 ltr/hr.
Diesel at 20 kn	not measured	300 ltr/hr.	248 ltr/hr.
Range: Max. at 30 kn.	300 miles	330 miles	350 miles

6. Noise (measured at 23 knots)

	Old propulsion plant Seatek measurem.	2000 Common Rail Seatek measurem.	2000 Common Rail Own measurement
Bridge	83,9 dB	82,7 dB	73 dB
Master cabin	75 dB	76,3 dB	74 dB
Main saloon	81,5 dB	80,4 dB	74 dB