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Charisian Urban Development

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Re: Charisian Urban Development
Post by Imaginos1892   » Mon Jun 17, 2019 9:58 am

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Isilith wrote:You want to put a blimp, with flammable hydrogen bags, over a high rise fire.

If the roof is burning, there's nobody left to rescue. If the fire is a few floors down, risk to the blimp would be minimal. Lower a bosun's chair on a 20-foot rope.
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Re: Charisian Urban Development
Post by iranuke   » Mon Jun 24, 2019 9:44 pm

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If I wanted to build a subway using steam technology, I would go with a cable-car system using steel cables and keep the boiler for the steam engine above ground.
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Re: Charisian Urban Development
Post by PeterZ   » Mon Jun 24, 2019 10:23 pm

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iranuke wrote:If I wanted to build a subway using steam technology, I would go with a cable-car system using steel cables and keep the boiler for the steam engine above ground.

Not a subway, but an elevated line. Whether the train works beneath the roads or above them matters little. The advantage of expanding the capacity of intracity travel along current roads and streets makes the investment in those steel structures worthwhile. Elevated lines will also have fewer issues with steam powered locomotives. Mind, I suspect that such elevated lines will be powered by Dobel engines fueled with alcohol or plant based oils.

Chicago "L" had its first lines running in 1892 using a steam locomotive. "L" stands for elevated.
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Re: Charisian Urban Development
Post by Randomiser   » Wed Jun 26, 2019 6:51 am

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Erls - You want to introduce High-rise living blocks and commuting to poor innocent Safehold, what kind of sadist are you?
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Re: Charisian Urban Development
Post by PeterZ   » Wed Jun 26, 2019 12:27 pm

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Tellesberg exists along the hills between the Styvyn Mountains and the Iron Hill Mountains. There is no plain to expand into, so space is limited. As the empire grows, Tellesberg will see commensurate growth. The geography has already cursed them to suffer high rises that their economy can very well afford.


Randomiser wrote:Erls - You want to introduce High-rise living blocks and commuting to poor innocent Safehold, what kind of sadist are you?
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Re: Charisian Urban Development
Post by Warpy   » Thu Jun 27, 2019 1:13 am

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Imaginos1892 wrote:
Rescuing people from the outside of a building above the eighth floor or so is too high for us, too. On Safehold, they could pick people off the roof with a blimp if they can't evacuate down the stairs.


So you would have a gas bag filled with highly flammable Hydrogen get close to a building on fire to rescue people... Turbulence and air currents caused by the fire would make the blimp hard to control, and did I mention that Hydrogen just needs a little nudge to go poof! And before you say it, yes they could use the helium that comes off as a byproduct of drilling for natural gas and oil however that is a minuscule amount of helium and the process by which it is captured may be enough to get the attention of the Orbital Bombardment Platform.
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Re: Charisian Urban Development
Post by Warpy   » Thu Jun 27, 2019 1:23 am

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Imaginos1892 wrote:
Isilith wrote:You want to put a blimp, with flammable hydrogen bags, over a high rise fire.

If the roof is burning, there's nobody left to rescue. If the fire is a few floors down, risk to the blimp would be minimal. Lower a bosun's chair on a 20-foot rope.


so the heat and exhaust of a burning building still has to escape even if the roof isn't on fire, and airships are notoriously fragile (look up accidents involving airships if you don't believe me), the thermals and air currents being generated would make it difficult to control the blimp and are likely to move the airship off course, this is of course excluding the fact that gaseous hydrogen becomes more reactive as it is heated, mainly as somewhat less reactive diatomic hydrogen disassociates into pure mono atomic hydrogen and if memory serves the Imperial Balloon Corp still hasn't figured out how to stop hydrogen from slowly eating through their gas bags.
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Re: Charisian Urban Development
Post by Daryl   » Thu Jun 27, 2019 2:44 am

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As an aside I heard a story on this when working in the aviation industry. An Iroquois helicopter is known to be an under powered big box. So when people congregated on top of a burning Asian high rise they filled it with everyone, and between bouncing and pushing got it off sideways, straightened up, and had a slow motion controlled crash after over torquing the mechanicals all the way down. Everyone survived, but the old chopper didn't.
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Re: Charisian Urban Development
Post by Galactic Sapper   » Sat Jun 29, 2019 12:46 pm

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Think outside the box. Instead of rescuing people off the roof, provide them the means of rescuing themselves. Zip lines!

>Imagines fire brigade showing up, using a mortar to shoot a grappling-hook-type-thing to the roof, and securing the other end several hundred yards down the road. On the room the evacuees secure the line, break open a locker of hand/seat units, and zip away to safety!
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