Taking airplane is empty.
Weight overall = Body weight + Wheel Weight
NO of wheels in 747 is 18
Weight?
Body weight = volume of airplane * density
Can someone tell me the proper approach to this Guesstimate?
Get Active in Our Amazing Community of Over 451,000 Peers!
Schedule mock interviews on the Meeting Board, join the latest community discussions in our Consulting Q&A and find like-minded Case Partners to connect and practice with!
What is the weight of Boeing 747?
Overview of answers
Upvotes
Best answer
Hi!
This question is more a brainteaser and it's less about the actual weight but rather about how you will measure it.
You can use both non-creative and creative approaches:
1) You can weight each part of the plain separately: wheels, chairs, etc. Don't forget the paint
2) You can recommend tying a rope around the plane’s midsection, throwing that rope over a rafter at the top of the hangar and then attaching the other end of the rope to a large platform onto which you will quickly load bricks of a known and pre-defined weight until the plane lifts off the ground and then all you need to do is count the bricks.
Best
(edited)
Was this answer helpful?
I think your approach is fine, but would augment by dividing the non empty volume in categories of materials (aluminium, foam, plastic) to be more precise.
Hope it helps,
Andrea
Was this answer helpful?
Related Cases
Expert case by Francesco
Style:
Our client today is AirService – a service provider for a number of airlines and airports. Their management recently realized a decrease in profits that is linked to increasing costs.Accordingly, they have engaged our firm to help address this issue. How would you approach this problem?
Our client today is AirService – a service provider for a number of airlines and airports. Their management recently realized a decrease in profits that is linked to increasing costs.Accordingly, they have engaged our firm to help address this issue. How would you approach this problem?
(Open whole case)
7.4k
Times solved
Intermediate
Difficulty
Expert case by Francesco
Style:
Our client is an Italian multinational manufacturer of branded chocolate and confectionery products. One of their most popular products is Hazella, a hazelnut spread.Despite its worldwide popularity, Hazella is considered to be high in calories by some customers. For this reason, our client has deve
...
Our client is an Italian multinational manufacturer of branded chocolate and confectionery products. One of their most popular products is Hazella, a hazelnut spread.Despite its worldwide po
...
(Open whole case)
4.7k
Times solved
Advanced
Difficulty
Expert case by Ian
Style:
Topics:
Estimate the daily revenue of your nearest coffee shop.Clarifying information:You can pick any coffee shop of your choiceWe would like a “typical” day (i.e. weekday)All revenue (all purchases)
Estimate the daily revenue of your nearest coffee shop.Clarifying information:You can pick any coffee shop of your choiceWe would like a “typical” day (i.e. weekday)All revenue (all purchases)
(Open whole case)
1.2k
Times solved
Intermediate
Difficulty
McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School
429
Meetings
12,233
Q&A Upvotes
127
Awards
186 Reviews
So for the first approach, for the weight of wings and circular body...how do we proceed.
(edited)
can nyone tell me the assumption for area of wing mid and back both
So the first question to the interviewer should be wether to calculate/estimate or measure the weight. Correct?
yeah...so how do we estimate everything