Eurocopter AS350B2 helicopter with HUMMINGBIRD EM system
Canada • Singapore • India • South Africa
A Neterwala Group Company
Helicopters
Undoubtedly, helicopter-borne geophysical systems, equipped with electromagnetics (EM), total field magnetometers and gamma-ray spectrometers, have been the most productive and useful of the airborne system developments to date, and have accounted for the discovery of billions of dollars' worth of mineral resources, tapped into numerous ground water reservoirs and provided immense volumes of data for environmental site evaluations. These systems are ideally suited for working in rugged, mountainous terrain, or over small claim block-sized properties, and are the techniques of choice for most mining companies to locate base metal and precious metal deposits and/or kimberlites.
McPHAR utilizes a variety of helicopters to conduct its survey operations. Almost always these helicopters are rented from a helicopter company as close to the survey area where we will be working as it is possible. However, we strive to ensure that the helicopter provided meets our stringent safety requirements and that the pilot(s) are experienced and have a safe record.
The choice of helicopter will depend, among other things, on the equipment to be used and the survey technique to be applied, the terrain to be flown over and safety considerations.
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Eurocopter AS350B2 helicopter with rigid-boom mounted magnetometer system
Eurocopter AS-350 A-Star (Ecureuil)
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Helicopter Model |
Eurocopter AS-350 B2 | Eurocopter AS-350 B3 |
| Registration | Various | Various |
| Engine | Turbomeca Arriel 1D1 732 shp | Turbomeca Arriel 2D 847 shp |
| Gross Weight | 4,960 lb / 2,250 kg | 4,960 lb / 2,250 kg |
| Empty Weight | 2,690 lb / 1,220 kg | 2,650 lb / 1,202 kg |
| Useful Load | 2,270 lb / 1,030 kg | 2,310 lb / 1,048 kg |
| Useful Fuel Capacity | 143 gal / 540 litres | 143 gal / 540 litres |
| Cargo-swing Load | 2,557 lb / 1,160 kg | 3,086 lb / 1,400 kg |
| Typical Survey Speeds | 45 – 60 knots / 80 – 120 kph | 45 – 60 knots / 80 – 120 kph |
| Survey Fuel Consumption | 47 gal / hour / 180 litres / hour | 47 gal / hour /180 litres / hour |
| Flight Duration (no reserves) | 3.9 hours | 4 hours |
| Cruise Speed - Ferry | 127 knots / 235 kph | 121 knots / 225 kph |
| Cruise Range | 371 nm / 688 km | 371 nm / 688 km |
| Maximum Operating Altitude | 18,700 ft / 5,700 m | 22,965 ft / 7,000 m |
| H.I.G.E. (ISA) | 13,450 ft / 4,100 m | 13,450 ft / 4,100 m |
| H.O.G.E. (ISA) | 11,300 ft / 3,450 m | 11,200 ft / 3,415 m |
| Climb Performance | 1,950 ft min / 594 m / min | 1,950 ft min / 594 m / min |
| Power Available for Equipment (28 VDC) | 150 amps | 150 amps |
Bell 206L long ranger & 206B jet ranger
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Helicopter Model |
Bell 206L Long Ranger | Bell 206B Jet ranger |
| Registration | Various | Various |
| Engine | Allison 250-C30P-650 shp | Allison 250-C20P-420 shp |
| Gross Weight | 4,250 lb / 1932 kg | 3,200 lb / 1,455 kg |
| Empty Weight | 2,442 lb / 1,110 kg | 1,651 lb / 749 kg |
| Useful Load | 1,808 lb / 822 kg | 1,549 lb / 704 kg |
| Useful Fuel Capacity | 110 gal / 420 litres | 91 gal / 344 litres |
| Cargo-swing Load | 2,000 lb / 907 kg | 1,500 lb / 682 kg |
| Typical Survey Speeds | 45 – 60 knots / 80 – 120 kph | 45 – 60 knots / 80 – 120 kph |
| Survey Fuel Consumption | 38 gal / hour / 145 litres / hour | 32 gal / hour /122 litres / hour |
| Flight Duration (no reserves) | 3 hours | 3 hours |
| Cruise Speed - Ferry | 113 knots / 208 kph | 115 knots / 210 kph |
| Cruise Range | 370 nm / 685 km | 398 nm / 747 km |
| Maximum Operating Altitude | 13,500 ft / 4,154 m | 13,500 ft / 4,116 m |
| H.I.G.E. (ISA) | 10,000 ft / 3,048 m | 12,800 ft / 3,900 m |
| H.O.G.E. (ISA) | 6,500 ft / 1,981 m | 8,800 ft / 2,680 m |
| Climb Performance | 1,320 ft min / 402 m / min | 1,280 ft min / 394 m / min |
| Power Available for Equipment (28 VDC) | 150 amps | 150 amps |
- Eurocopter AS-350B2 & B3
- Bell 206B and 206L