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Old 01-21-2023, 01:49 PM   #11
David L Pulver
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Join Date: Aug 2004
Location: In the UFO
Default Re: [Vehicles] Marine Steam Engines

Originally Posted by Marasmusine View Post
Hello all, time for my annual Vehicle-related post.

This time I'm looking at marine steam engines. It seems to me that their power-to-weight ratio is much lower than those used for locomotives.
I was aware of some issues with marine propulsion - In my Vehicle Design rules I added extra options for marine condensing, condensing, and high performance steam engines (as well as flash boilers, oil firing, and long occupancy etc.) plus also a cheap modifier.

Bearing in mind it's just one engine for 30 years of development, so it's likely to be somewhat off, this gets me 120 lbs./kW for TL6 compound steam engine with the marine condensing option (x1.2 weight, volume, cost; x0.005 water consumption as long as vehicle is in water) but as little as 50 lbs./kW for a high-performance version for a locomotive (at higher cost).

Of course, extra rules of this sort added to the book's lengthy and complexity, which ultimately resulted in its undoing ):
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steam engines, vehicles

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