The Hawker 1000 is one of the more recent additions to British Aerospace’s HS-125 private business jet series. It has intercontinental range capabilities and is quite roomy for a mid-sized private jet. It strikes a good balance between the various areas of private jet performance.
The cabin of the Hawker 1000 can come in a traditional or a biomorphic design. The biomorphic design has smooth curves and is supposed to increase passenger comfort and useful space. The cabin stretches to 24.4 feet long (not including the cockpit), 5.8 feet high, and 6 feet wide. It is usually configured to hold eight seats, but can hold as many as eight.
Two Pratt & Whitney Canada PW305 turbofan engines power the Hawker 1000, providing 5,255 pounds of thrust each on takeoff. A new design to reduce engine noise puts out exhaust at a slower velocity, thus producing only 90 EPNdB for a noise footprint of 1.6 square miles. (A noise footprint is the area in which listeners would be significantly affected by jet engine noise). In comparison, the noise footprint of a typical twin turboprop would be 4.2 square miles.
A new feature of the PW305 engines is the added Full-Authority Digital Control (FADEC) system, which optimizes fuel use for the best possible performance. The FADEC uses information from the air data system and the throttle to configure the engine’s performance, resulting in a good specific fuel consumption and better thrust. The FADEC decreases pilot workload during engine startup and in flight -- for example, it is programmed to automatically increase the thrust in one engine when the other fails.
The Hawker 1000 can take off in 5,950 feet at sea level, and in 8,075 feet at an altitude of 5,000 feet. The fairly low increase (thirty-six percent) in runway distance at high altitude is achieved by the use of the engines’ Automatic Performance Reserve (APR) feature. It allows the hot-day temperature margins of the engines to be used for extra thrust on takeoff. On other jets, these margins can only be used for single-engine takeoffs.
The Hawker 1000 can cruise at up to 453 knots (.68 Mach) at an altitude of 37,000 feet. Its long range cruise speed is 400 knots (.60 Mach) while flying at 41,000 feet. The Hawker 1000 has a maximum range of 3,530 miles (3,098 nautical miles). On average, when operating at maximum speed or range parameters, it burns 1,400 pounds (232 gallons) of fuel per hour and has a total fuel capacity of 11,300 pounds. While cruising at maximum levels, the noise levels in the passenger portion of the cabin are at 81 dbA.
The avionics system used in the Hawker 1000 was quite advanced at the time of its release. The Honeywell SPX-8000 dual-channel fail-operational digital flight system comes standard. Also standard is the five EDZ-818 flat panel screen electronic flight instrumentation system, the Primus 870 Doppler turbulence system, the LSZ lightning sensor system and the Bendix/King KHF transceiver. The FADEC system simplifies engine-related monitoring and adjusting, resulting in reduced pilot workload and economical fuel burn.
In summary, the Hawker 1000 is exactly what it claims to be – an economic and consistent private jet that will deliver reliable performance for a long time. Its cabin gives passengers enough room to relax; the engines are powerful enough to take the plane just about anywhere; and the avionics are reliable and intuitive. In other words, the Hawker 1000 meets all of the requirements for a good mid-sized private jet, and then some.