Technical Interview - Type specific questions Flashcards
What are the dimensions of the wing?
Span: 93’6”
Height: 25’5”
Length: 96’5”
Min turning circle diameter: 112’ based on 80 degree nose wheel deflec
Describe the G550 engine
BMW / RR Engine
Model BR-710
Takeoff thrust 15,385 lb/fr
Takeoff thrust to weight ratio is .338
G550 BOW
48,300 lbs empty
Maximum payload?
6,200 lbs at BOW empty 48,300 lbs
Max fuel capacity verses max usable fuel capacity?
Max fuel cap is 41,700 lbs
Max usable fuel capacity is 41,300 lbs or 20,650 in each tank
Flight control gust lock does what?
The gust lock will prevent flight control movement during wind speeds up to 60knots.
If gust lock is engaged, a mechanical interlock within the cockpit pedestal prevents advancing the power levers more than 6 % forward of ground idle.
What does the fuel system comprised of?
Fuel system consists of 2 wing fuel tanks, a series of pumps and lines to supply fuel to the APU and engines, and indicators to monitor the airplane fuel status.
What does the fuel hopper do and where is it located?
The fuel hopper is located at the wing root and is the lowest point of the fuel tank.
Fuel hopper can contain 190 gallons or 1283 lbs.
The fuel hopper also houses a heat exchanger to cool hydraulic fluid.
The right hopper cools the left hydraulic SYS and vice versa.
Describe the hydraulic system on the G550?
The G550 has 2 independent hydraulic systems, L / R, each powered by an engine driven pump installed on the respective Engine that pressurizes fluid in dedicated reservoirs.
These pumps operate as long as the engine are not shut down with the cockpit fire pull handles.
What is unique about the L Hydraulic system?
The fluid from the L side is pressurized by 2 sources other than the engine driven pump.
1 the electric driven AUX Pump
2. The PTU driven by the R hydraulic side
What are the components of the Left Hydraulic system?
Engine driven Hydraulic Pump Aux Pump PTU Fluid lines, Reservoir, Gage's HMG Systems displays
What aircraft systems do the L HYD SYS power?
Landing gear Brakes Nose wheel stearing Flaps Ground and flight spoilers Yaw Damp 1 and Rudder Elevators and ailerons
What is the HMG?
The HMG is a piston motor that uses left hydraulic pressure to rotate a generator shaft at 8,000 rpm to produce AC alternating current.
What is a limit on the ICE Detection system and why?
Automatic anti-icing is not available below 1500 ‘ because full engine capacity is reserved for takeoff and landing.
It is not available above 35,000’ since moisture content is low, and it will dedicate all energy to pressurization of aircraft. If you want it then you must manually turn it on.
What are the primary flight controls of the G550?
Elevator for pitch
Rudder for yaw
Aileron for roll