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Major airlines will purchase many of the new aircrafts capable of carr

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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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New post 23 Jul 2016, 03:06
RaghavSingla wrote:
I think the OA given is wrong. Here's my view:

Why D is wrong: It is mentioned that airlines are currently using hub and spoke model. That means, if they evenstart using new smaller planes, they'll still follow the old model and in the old model they'll need substantially more number of planes to carry same number of passangers as those carried by a larger plane. Sincw time slots are limited, the option of using smaller planes is wrong.

Why C is correct: This is because if new planes start taking more time to board, then airlines will nor have suffient flight numbers in the limited time slots they have. Their new planes would become useless in that case. Hence the best weakener against use of new planes.

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Making the assumption that "they'll still follow the old model " is not justified. When smaller planes are purchased, they may fly directly to the destinations with shorter runways - the previous hub and spoke model may be changed.

Moreover I have a refutation to your point for option C: Since the new planes will carry more than 500 passengers, more than 25% their present capacity, an increase in boarding time upto 25% should not be an issue. The additional boarding time can be compensated by the additional number of passengers taken per flight. (Here the assumption is that the total number of passengers traveling from an airport does not change significantly).

Edit: Just now noticed that origen87 has already made these points. I would say the OA is alright.
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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New post 16 Jul 2017, 01:39
The conclusion is that the airlines want to expand the volume of passengers per slot and for that they are aiming to buy a new aircraft that can carry 500 people.
so if boarding time increase it will have no impact. If any flight is to take off at 12 am and boarding time of that flight starts at 10 pm then increasing the number of passengers wont effect on anything. simply the airline will open its boarding time an hour before like 9 pm.
Its only when small aircraft will come in competition because people might prefer such crafts as fewer people needs connecting flight to go from international airports to local ones.
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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New post 16 Jul 2017, 02:48
Answer is D

A is out of scope as we are not concerned by the cost of seat .

B actually strengthens the argument as the airports can not handle any more flight so airlines have to increase the capacity of the exiting slots and planes.

C also strengthens the argument as the time for boarding is substantially more thus they have to increase the capacity of the planes.

D is our answer it weakens .

E also strengthens the argument .
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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New post 08 Oct 2018, 23:37
Major airlines will purchase many of the new aircrafts capable of carrying more than 500 passengers on transcontinental and transoceanic flights. These airlines currently rely on "hub and spoke" systems of routing, in which large planes, which can seat 400 people and are capable of transoceanic flight, fly into hubs that have runways sufficiently long to handle them. From there, passengers are dispatched to local airports on connecting flights on small planes. With takeoff and landing time slots almost completely booked at most hubs, and little new runway construction expected, airlines will want to expand the volume of passengers they can fly in a given time slot.

The argument above would be most weakened if which of the following were true?

Conclusion: Airlines will buy many new aircrafts capable of carrying more than 500 passengers on transcontinental and transoceanic flights as they would want to expand the volume of passengers they can fly in a given possible time
Premise: Take off and landing time slots are almost completely booked
Premise: Airlines rely on “hub and spoke” model to transport people across oceans or continents
Premise: Little new runways are expected to be constructed

Analysis:

Hub and spoke model presents a bottleneck for the airlines to transport people across oceans and continents. Since the landing time and take off times are booked, the airport can not accommodate (for landing and take off) more planes per unit time. Airline will have to increase the volume of people per plane to increase the volume of people they are transporting (Across oceans and continents)

Potential weakeners would be:
An alternate method to increase the volume => Airline may not buy those big aeroplanes
Current method will not work => something like runways are not build for such huge aeroplanes; these aeroplanes are not running at full capacity meaning that demand is distributed across time-slots/regions (All time-slots are booked).

A. The new 500 seat aircraft cost more per seat than existing aircraft
Does not weaken as the cost may be more but the customers might be willing to pay even more. It is not a deterrent for the airlines to buy the big planes.

B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do.
Strengthens a premise

C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft
Take off and landing slots are booked. Does not imply that boarding times are booked. The airport might be huge with huge parking space and limited runways.

D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service
An alternate method to increase the volume. Weakens the argument.

E. Transoceanic air flights are currently running at near maximum capacity
Strengthens the premise
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Re: Major airlines will purchase many of the new aircrafts capable of carr   [#permalink] 08 Oct 2018, 23:37

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