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AE1110x - Introduction to Aeronautical Engineering
Exercise1Suppose an airliner is planning to fly an Airbus A319
very low over a water surface, thereby increasing
its lift by 40%. However, the airliner does not need 40% extra
lift, instead it decides to reduce the
wing area such that the aircraft generates the same lift as a
normal A319. What would the wing
area (in square metres) of this modified A319 have to be?
Exercise2What function(s) were the Russian ground effect planes
meant to carry out:
A) Be invisible to radar and sonarB) Hunt down submarines
quicklyC) Weapon transportD) Transport troopsE) Fast sea patrol
Exercise3Why are the engines of all Russian sea planes so high
up?
A) To ensure stability whilst flying so low over water.B) To
prevent water ingestion at the engines.C) To avoid blowing hot air
over the wings.D) To keep the nose of the aircraft down and prevent
the sea plane flying too high.
Exercise4Why are helicopters so hard to fly? (Multiple answers
can be correct)
A) There are more controls than in an aircraft.B) Helicopters
are inherently unstable.C) There are a lot of cross-couplings
between the controls.D) Helicopters are influenced severely by
their rotor turbulence.
Exercise5What do we call the manoeuvre which is to be performed
after a helicopter engine failure?
Exercise6What is/are the functions of the swashplate?
A) It acts as a transmission between the shaft and the rotor.B)
It controls the angle of attack of the rotor blades collectively.C)
It controls the angle of attack of the rotor blades individually.D)
It controls the velocity distribution over the blades.
Exercises Lecture 9 - Special vehicles 1
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AE1110x - Introduction to Aeronautical Engineering
Exercise7The main rotor of a helicopter produces a torque of 4.8
kNm. If the tail rotor is capable of producing
720 Newtons of thrust, calculate the minimum tail rotor moment
arm (in metres).
Exercise8What type(s) of stability does a hovering Harrier jet
(shown below) possess?
Figure 1: A hovering Harrier. Image courtesy ofJumbero, CC - BY
- SA
Exercise9In pictures such as the one below you might have
noticed that the modern F-35 (the Joint Strike
Fighter) has odd hatches, see the blue circles in the picture
below. What would these hatches be
for?
Figure 2: A hovering Joint Strike Fighter, with its hatches
exposed.
Exercise10What does the acronym JATO stand for?
Exercise11Which of the following is/are not issues regarding the
use of UAVs for passenger transport?
A) Technical feasibility
B) AcceptanceC) Reliability of automationD) Communication
channels between aircraft and ground
2 Exercises Lecture 9 - Special vehicles
http://www.flickr.com/photos/jumbero/6037586417/http://www.flickr.com/photos/jumbero/6037586417/
