Mass & Bal ATPL question
Thread Starter
Join Date: Feb 2008
Location: Malta
Age: 38
Posts: 48
Likes: 0
Received 0 Likes
on
0 Posts
Mass & Bal ATPL question
Hi guys, perhaps i've made a mistake in the calculations but i just can work out this question:
A pallet having a freight platform which measures 200cm x 250cm has a total mass of 300kg, The pallet is carried on two ground supports each measuring 20cm x 200cm.
Use the loading manual for the transport aeroplane, calculate how much mass may be added to, or must be off loaded from the pallet in order for the load intensity to match the maximum permitted distribution load intensity for lower deck forward cargo compartment.
Any help would be appreciated!
Cheers in advance
A pallet having a freight platform which measures 200cm x 250cm has a total mass of 300kg, The pallet is carried on two ground supports each measuring 20cm x 200cm.
Use the loading manual for the transport aeroplane, calculate how much mass may be added to, or must be off loaded from the pallet in order for the load intensity to match the maximum permitted distribution load intensity for lower deck forward cargo compartment.
Any help would be appreciated!
Cheers in advance
Join Date: Dec 2007
Location: Ireland
Posts: 80
Likes: 0
Received 0 Likes
on
0 Posts
Hey, after digging out the ATPL notes this one is bugging me because I remember being able to do these and cant now!
The formula I had for doing them was:
Pallet size(metres squared) = Load(kg)/Floor Loading(kg per metre squared)
You have to convert the pallet sizes from cm to m for a start anyways.
Hope this might be some small help ill stay trying to unfreeze my brain here!
The formula I had for doing them was:
Pallet size(metres squared) = Load(kg)/Floor Loading(kg per metre squared)
You have to convert the pallet sizes from cm to m for a start anyways.
Hope this might be some small help ill stay trying to unfreeze my brain here!
Join Date: May 2005
Location: Scotland
Age: 37
Posts: 49
Likes: 0
Received 0 Likes
on
0 Posts
M&B
This is one of the annoying mass and balance ones where they give you alot of information and some which you dont need.
The numbers you need are the ground supports, 20cm x 200cm. So changing to metres this is 0.8 metres squared.
Having a quick look at cap696, your max loading intensity is 68kg per square foot. So start thinking about conversions... 1 metre = 3.28feet
So a foot squared is 3.28 x 3.28 = 10.76. So you now know you have 10.76 square feet in a square metre.
In the question we dont have a square metre, just 0.8 of a square metre, so you want to do 0.8 x 10.76, which gives you 8.61 square feet.
So your ground supports are 8.61 square feet, but your max load intensity is 68kg per square foot, so your max load is 68 x 8.61, giving you 583.3kg.
You only have 300kg loaded so far therefore you can add 285.3kg and still remain within your max load intensity limits.
Hope that helps! I always found some of the mass and balance questions like this one easier if you make a little sketch to see whats actually going on, and from there taking the figures that you need to go on and finish the question.
The numbers you need are the ground supports, 20cm x 200cm. So changing to metres this is 0.8 metres squared.
Having a quick look at cap696, your max loading intensity is 68kg per square foot. So start thinking about conversions... 1 metre = 3.28feet
So a foot squared is 3.28 x 3.28 = 10.76. So you now know you have 10.76 square feet in a square metre.
In the question we dont have a square metre, just 0.8 of a square metre, so you want to do 0.8 x 10.76, which gives you 8.61 square feet.
So your ground supports are 8.61 square feet, but your max load intensity is 68kg per square foot, so your max load is 68 x 8.61, giving you 583.3kg.
You only have 300kg loaded so far therefore you can add 285.3kg and still remain within your max load intensity limits.
Hope that helps! I always found some of the mass and balance questions like this one easier if you make a little sketch to see whats actually going on, and from there taking the figures that you need to go on and finish the question.
Join Date: Oct 2008
Location: Above & Beyond
Posts: 322
Likes: 0
Received 0 Likes
on
0 Posts
I found M&B a really easy subject...Once you know the formula's and when to use it,then start practicing exams it will be an easy 100%
But not having done this type of question in a while it threw me off
Note to self: REVISE!!!
But not having done this type of question in a while it threw me off
Note to self: REVISE!!!
Join Date: Dec 2007
Location: Ireland
Posts: 80
Likes: 0
Received 0 Likes
on
0 Posts
fly antonov and Islander2 grow up! I didnt see either of you answering the question. Colette did, fair play to him/her
If you have nothing constructive to say please dont say it.
If you have nothing constructive to say please dont say it.
Join Date: Jun 2007
Location: London
Posts: 82
Likes: 0
Received 0 Likes
on
0 Posts
Could use one word to sum up fly antonov, but wouldn't be allowed on here.
A 23 year old with a ppl.. with an opinion on everything.. not even sat the atpls yet.. a true wannabe.
A 23 year old with a ppl.. with an opinion on everything.. not even sat the atpls yet.. a true wannabe.
Join Date: Sep 2009
Location: Bulgaria
Posts: 163
Likes: 0
Received 0 Likes
on
0 Posts
You seem to approve of pilots including active duties, who can not solve simple math problems.
Yes, I have a problem with idiots who can' t solve simple math problems who blindly and persistantly buy their way into a job.
I am not accusing the OP of being one of them but he seems to have a serious problem that he needs to address. This is not the first time he is been asking these simple questions and he knows it himself:
http://www.pprune.org/professional-p...-question.html
The other day a guy was asking to solve time distance speed problems.
http://www.pprune.org/professional-p...-problems.html
I' m not sure whether I should laugh or cry?
Yes, I have a problem with idiots who can' t solve simple math problems who blindly and persistantly buy their way into a job.
I am not accusing the OP of being one of them but he seems to have a serious problem that he needs to address. This is not the first time he is been asking these simple questions and he knows it himself:
http://www.pprune.org/professional-p...-question.html
The other day a guy was asking to solve time distance speed problems.
http://www.pprune.org/professional-p...-problems.html
I' m not sure whether I should laugh or cry?
Thread Starter
Join Date: Feb 2008
Location: Malta
Age: 38
Posts: 48
Likes: 0
Received 0 Likes
on
0 Posts
Correct me if i'm wrong but i thought this was a forum for discussing ground studies?, I wasn't aware it was a forum for personal insults.
As i mentioned in the original post i was aware of the method however the calculation wasn't working out properly; my notes didn't have any similar example to follow from. Collette kindly went through it stage by stage and i was able to see where i slipped up, what is the problem exactly?
As for buying my way into a job?? I'm on the ATPL course and soon going onto CPL/IR etc. I've worked hard to get to where i am and i am fully aware that there may not even be a job at the end of the line due to the current climate.
If you imagine that anyone who dares asks a question in a discussion forum is stupid, and you assume anyone on the ATPL is rich and 'buying' a job then i'm afraid its you who are stupid and guilty of stereotyping.
I'm not going to go through my qualifications and plead poverty because the vast majority of aspiring pilots are in the same boat; we know the sacrifices financially and we know the standard we all need to be there or thereabouts at...you clearly do not.
If people asking questions is making you so angry and upset i would suggest you visit other forums instead.
As i mentioned in the original post i was aware of the method however the calculation wasn't working out properly; my notes didn't have any similar example to follow from. Collette kindly went through it stage by stage and i was able to see where i slipped up, what is the problem exactly?
As for buying my way into a job?? I'm on the ATPL course and soon going onto CPL/IR etc. I've worked hard to get to where i am and i am fully aware that there may not even be a job at the end of the line due to the current climate.
If you imagine that anyone who dares asks a question in a discussion forum is stupid, and you assume anyone on the ATPL is rich and 'buying' a job then i'm afraid its you who are stupid and guilty of stereotyping.
I'm not going to go through my qualifications and plead poverty because the vast majority of aspiring pilots are in the same boat; we know the sacrifices financially and we know the standard we all need to be there or thereabouts at...you clearly do not.
If people asking questions is making you so angry and upset i would suggest you visit other forums instead.
