What are the differences between the Avro RJ85 and the BAE 146 …
The main difference between the Avro RJ and the BAe-146 is the engine- The RJ has Honeywell LF 507-1F, which is developed from the Lycoming ALF 502R-5 used in 146. The main difference between the engines is that the 507 has more LP turbine stages (2 Vs 1), sightly more thrust (31.5 KN Vs 31 KN) and has a single-channel FADEC with hydro ...
bae 146 - Why does an Avro RJ85 have four engines? - Aviation …
2016年12月15日 · The BAe 146's four turbofans give it a greater reserve of power, allowing it to fly in and out of difficult airfields. Other advantages claimed for four engines include the ability to make three-engine ferry flights without passengers, and the retention of more than half the aircraft's electrical and hydraulic power when an engine fails.
Do the four engines of a BAe-146 make it efficient?
2018年4月8日 · The BAe 146 had a relatively wide and stubby fuselage, designed for 6-abreast seating but often configured for 5-abreast due to awkward headroom for the window passengers. This added to the drag penalty of the type over that of a comparable size aircraft like the Fokker 100, which is still a sought after aircraft for feeder airlines in ...
Why does the BAe 146 have higher maintenance costs than other ...
According to the BAe 146's chief designer, Bob Grigg, from the very start of the design process, making the aircraft as easy to maintain as possible and keeping operator's running costs as low as possible were considerably high priorities. Velupillai 1981, pp. 1245-1246, 1253.
aircraft design - Why does this regional jet have its air brakes wide ...
2017年3月20日 · Airbrakes on the Fokker 70's tail section – similar to that found on the BAe 146 / Avro – allows it to conform with the 5.5° glide slope at London City Airport. 2. It allows better speed control. Some aircraft are overpowered with high power-to-weight ratio. The thrust lever range alone won't be enough to hold the approach speed.
emergency - What happens to the control systems of a BAe 146 …
2016年12月15日 · An overview schematic (allegedly for 146) does not show an emergency ram-air-turbine (RAT) generator. Hydraulics There are two Hydraulic systems, yellow and green.
What is the maximum range of a BAe 146-300? Can auxiliary fuel …
2015年5月3日 · What is the maximum range of a BAe 146-300? I saw one on Flightradar24.com which started in western France and is still flying non-stop to Greece (flight in progress at the time of posting). I was really surprised, I guess they probably have an additional fuel tank?
Why do some aircraft (e.g. Avro RJ85) have rear-mounted air brakes?
2017年4月25日 · Note: the BAe 146 / Avro does have wing spoilers. Air brakes are in most cases mounted directly on the fuselage. Forward mounted air brakes would disrupt the airflow to the wings and engines, so the designers are left with three choices: above, under, or at the rear / on the sides. Under, like on the Aero L-39, works well 1 if the air brakes ...
What prevents aircraft with a tailcone APU from using tail …
Thrust reversers aid in decelerating the aircraft after touch-down. The brakes of a large, heavy aircraft need to work disproportionally harder than those of a lighter and smaller aircraft such as the BAe 146 and Fokker 100. Braking efficiency is improved by deploying lift dumpers, and it may make sense to use these as air brakes during approach.
What plane is this, looks a lot like a BAe-146-100 or an Avro 146 …
2020年12月21日 · It is flying out of Phoenix Sky Harbor International Airport. It landed at about 5:27 if that matters. It is a green tail livery that extends downward. The wings are above it like on a C172 however the engines are straight under the wings. The engines are fan engines, not props. It looks like the 146-RJ100 with only 2 engines total though.