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SGR Progress thus far
Njung'e
#241 Posted : Monday, June 13, 2016 3:01:55 PM
Rank: Elder

Joined: 2/7/2007
Posts: 11,935
Location: Nairobi
Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly

Some fellows here need help alongside Kuria. For a start, railways are elevated along animal corridor and they also get elevated on plains for engineering reasons. Assuming someone's proff lost his books at that aviation college and therefore, the welder did not conclude his syllabus, he may refer to the following physics lessons;

Tractive effort
Track curvature
Percentage grade
Tractive force required for acceleration.

I rest my lesson.


Nothing great was ever achieved without enthusiasm.
Obi 1 Kanobi
#242 Posted : Monday, June 13, 2016 3:08:56 PM
Rank: Elder

Joined: 7/23/2008
Posts: 3,017
Njung'e wrote:
Hahahahahaha.......Seriously, we have mega problems with our graduate engineers.

@njung'e

Personal battles with @impunity aside, why was the line elevated for 500Kms. Its a major cost added and there has to be a good reason.
"The purpose of bureaucracy is to compensate for incompetence and lack of discipline." James Collins
Njung'e
#243 Posted : Monday, June 13, 2016 3:17:12 PM
Rank: Elder

Joined: 2/7/2007
Posts: 11,935
Location: Nairobi
Obi 1 Kanobi wrote:
Njung'e wrote:
Hahahahahaha.......Seriously, we have mega problems with our graduate engineers.

@njung'e

Personal battles with @impunity aside, why was the line elevated for 500Kms. Its a major cost added and there has to be a good reason.


Sorry Obi. I have no problem with the welder. Just his ignorance. Animal corridors is one but the rest has to do with the fact that the train has to climb from sea level to heights above 6800 feet ASL. This must be done efficiently, at the design speeds and considering loads to be hauled. Same applies for a railway line going down hill (say from Londiani to Kisumu and i think this is one reason why SGR will pass through Bomet to Kisumu rather than through Nakuru). The rolling is moderated and this also informs sizing of engines for various levels of loads.
Nothing great was ever achieved without enthusiasm.
Obi 1 Kanobi
#244 Posted : Monday, June 13, 2016 3:26:47 PM
Rank: Elder

Joined: 7/23/2008
Posts: 3,017
Njung'e wrote:
Obi 1 Kanobi wrote:
Njung'e wrote:
Hahahahahaha.......Seriously, we have mega problems with our graduate engineers.

@njung'e

Personal battles with @impunity aside, why was the line elevated for 500Kms. Its a major cost added and there has to be a good reason.


Sorry Obi. I have no problem with the welder. Just his ignorance. Animal corridors is one but the rest has to do with the fact that the train has to climb from sea level to heights above 6800 feet ASL. This must be done efficiently, at the design speeds and considering loads to be hauled. Same applies for a railway line going down hill (say from Londiani to Kisumu and i think this is one reason why SGR will pass through Bomet to Kisumu rather than through Nakuru). The rolling is moderated and this also informs sizing of engines for various levels of loads.


Thanks for this, I bet they are going to dig the sh*t out of the escarpment before the train drops into the Rift Valley, or create a massive bridge to manage the altitude drop to the Rift floor, that will be interesting.
"The purpose of bureaucracy is to compensate for incompetence and lack of discipline." James Collins
Njung'e
#245 Posted : Monday, June 13, 2016 3:46:17 PM
Rank: Elder

Joined: 2/7/2007
Posts: 11,935
Location: Nairobi
Obi 1 Kanobi wrote:
[quote=Njung'e][quote=Obi 1 Kanobi][quote=Njung'e]

Thanks for this, I bet they are going to dig the sh*t out of the escarpment before the train drops into the Rift Valley, or create a massive bridge to manage the altitude drop to the Rift floor, that will be interesting.


Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly ....Okay!. You are really funny!. Back to business. There will be no long bridges to the floor of the RV. The easier and far much gentler route would still be using the inner length of the side of the escarpment just as in the current situation. James May offers a simplified explanation in the video below. I hope this helps.

http://tracks.lionel.com...-cant-trains-go-uphill/
Nothing great was ever achieved without enthusiasm.
Impunity
#246 Posted : Monday, June 13, 2016 4:19:46 PM
Rank: Elder

Joined: 3/2/2009
Posts: 26,331
Location: Masada
Njung'e wrote:
Obi 1 Kanobi wrote:
Njung'e wrote:
Hahahahahaha.......Seriously, we have mega problems with our graduate engineers.

@njung'e

Personal battles with @impunity aside, why was the line elevated for 500Kms. Its a major cost added and there has to be a good reason.


Sorry Obi. I have no problem with the welder. Just his ignorance. Animal corridors is one but the rest has to do with the fact that the train has to climb from sea level to heights above 6800 feet ASL. This must be done efficiently, at the design speeds and considering loads to be hauled. Same applies for a railway line going down hill (say from Londiani to Kisumu and i think this is one reason why SGR will pass through Bomet to Kisumu rather than through Nakuru). The rolling is moderated and this also informs sizing of engines for various levels of loads.


S.E.N.I.L.E.

Portfolio: Sold
You know you've made it when you get a parking space for your yatcht.

Swenani
#247 Posted : Monday, June 13, 2016 4:31:06 PM
Rank: User

Joined: 8/15/2013
Posts: 13,237
Location: Vacuum
Impunity wrote:
By the way the rail lines which are usually entiley elevated are the Bullet Lines...doing speeds in the order of 350km...why elevate a line which will struggle to maintain a meager 80km/h on a straight stretch?

Mark you the Lunatic Line, designed in 1890s can accomodate speeds of up to 72km/h on safe stretches.

These are the results you get when you put a @Maina to decide a railway matters...pesa tu, people who have never boarded a train in their life are the MDs of the same.

What do u expect?

Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly
If Obiero did it, Who Am I?
Swenani
#248 Posted : Monday, June 13, 2016 4:32:49 PM
Rank: User

Joined: 8/15/2013
Posts: 13,237
Location: Vacuum
Obi 1 Kanobi wrote:
Njung'e wrote:
Obi 1 Kanobi wrote:
Njung'e wrote:
Hahahahahaha.......Seriously, we have mega problems with our graduate engineers.

@njung'e

Personal battles with @impunity aside, why was the line elevated for 500Kms. Its a major cost added and there has to be a good reason.


Sorry Obi. I have no problem with the welder. Just his ignorance. Animal corridors is one but the rest has to do with the fact that the train has to climb from sea level to heights above 6800 feet ASL. This must be done efficiently, at the design speeds and considering loads to be hauled. Same applies for a railway line going down hill (say from Londiani to Kisumu and i think this is one reason why SGR will pass through Bomet to Kisumu rather than through Nakuru). The rolling is moderated and this also informs sizing of engines for various levels of loads.


Thanks for this, I bet they are going to dig the sh*t out of the escarpment before the train drops into the Rift Valley, or create a massive bridge to manage the altitude drop to the Rift floor, that will be interesting.


Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly
If Obiero did it, Who Am I?
Swenani
#249 Posted : Monday, June 13, 2016 4:51:43 PM
Rank: User

Joined: 8/15/2013
Posts: 13,237
Location: Vacuum
Njung'e wrote:
Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly Laughing out loudly

Some fellows here need help alongside Kuria. For a start, railways are elevated along animal corridor and they also get elevated on plains for engineering reasons. Assuming someone's proff lost his books at that aviation college and therefore, the welder did not conclude his syllabus, he may refer to the following physics lessons;

Tractive effort
Track curvature
Percentage grade
Tractive force required for acceleration.

I rest my lesson.




For the rest of us who didnt attend engineering or welding classes, I have tried to simplify the above lessons in a layman's language

1. Tractive effort-When you are landing and you feel like your landing gear is being held captive by the airpor(esp when she is having an orgasms), that'sthe tractive effort of the airport

2.Track curvature-Refer to teh photo of Edna Kariuki(the fisilet who caused the death of Muganda)

3.Percentage grade-The incline/decline of the airport relative to the landing position

4.Tractive force required for acceleration.-The force exerted by your landing gear in an airport

If Obiero did it, Who Am I?
murchr
#250 Posted : Monday, June 13, 2016 4:52:13 PM
Rank: Elder

Joined: 2/26/2012
Posts: 15,980
This forum will exposed so many of the so called "half baked" graduates
"There are only two emotions in the market, hope & fear. The problem is you hope when you should fear & fear when you should hope: - Jesse Livermore
.
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