11 - System: Structure Flashcards
Structure: Name the different sub-assemblies of the structure
- Canopy
- Body Structure
- Rear Structure
- Tail Boom
- Tail Unit
- Landing Gear
- Bottom Structure and Cabin Floor
(Instruction Manual - Basic 1 - Main Systems, Chapter 2, Paragraph 2.1.1)
Structure: What is the structural design of the body structure?
Designed as a Rigig Hexahedron
It supports:
- Main transmission components
- MGB
- Rotor
- Landing gear
- Cabin floor
- Rear structure
- Encloses the fuel tank
(Instruction Manual - Basic 1 - Main Systems, Chapter 2, Paragraph 2.2)
Structure: How is the bottom structure and cabin floor attached to the body structure?
By two beams
(Instruction Manual - Basic 1 - Main Systems, Chapter 2, Paragraph 2.3)
Structure: In which direction does the horizontal stabilizer produces lift?
Downward - in order to create a more comfortable attitude during flight
(Instruction Manual - Basic 1 - Main Systems, Chapter 2, Paragraph 2.2)
Structure: What is the purpuse of the step on the left hand side of the horizontal stabilizer?
To create more downward lift on the left hand side of the horizontal stabilizer, by providing a more cambered profile - thus counteracting the right skid low attitude.
(Instruction Manual - Basic 1 - Main Systems, Chapter 2, Paragraph 2.7.1)
Structure: What is the purpose for the different aerodynamic design of the upper and lower vertical fin?
Upper vertical fin (cambered profile)
- Generates an aeordynamic force to oppose main rotor torque (support tail rotor)
- Counteract right skid low attitude
Lower vertical fin (symmetrical profile)
- Stabilizing the aircraft in its yaw axis
(Instruction Manual - Basic 1 - Main Systems, Chapter 2, Paragraph 2.7)
Structure: How is the landing gear cross tube attached to the aircraft?
- Clamps (4)
- Hydraulic shock absobers (2) on the forward cross tube
Structure: What is the purpose of the steel stribs bent downwards extending at the rear part of the skid?
Prevent ground resonance
(Instruction Manual - Basic 1 - Main Systems, Chapter 2, Paragraph 2.10.3)
Structure: How many anti-vibration devices is installed in the aircraft?
3
- Pilot seat
- Co-pilot seat
- Main rotor head