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Post by ash19256 on Apr 17, 2017 18:00:50 GMT
Radioactive does not equal fissile. Radon IIRC doesn't have any point at which it can achieve supercriticality, which means that you can't use it as a reactor fuel as the reaction will never become self-sustaining in such a way that you can generate power with it. |
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Post by RiftandRend on Apr 17, 2017 18:14:55 GMT
Radioactive does not equal fissile. Radon IIRC doesn't have any point at which it can achieve supercriticality, which means that you can't use it as a reactor fuel as the reaction will never become self-sustaining in such a way that you can generate power with it. But you can use it in a radioisotope thermal rocket, which I think he was getting at. |
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Post by Rocket Witch on Apr 18, 2017 1:40:49 GMT
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Post by dragonkid11 on Apr 18, 2017 5:15:20 GMT
You know you are in advanced stage of boredom when yoy decided to change the appearance of your fighter drone because you don't like it. Behold, my new Gunfighter.  It looks like Bullet Bill's edgy cousin with nuclear cannons, heavy coilguns and sandcasters. With real actual armor at the cost of only 1 tons, the Gunfighter can now actually take hits instead of just give it. Unfortunately, nose guns have to be moved to the size for real protective nose cone, so getting all the guns on target is now really hard to do so. But hey, it looks like a real space battleship at the mass of only 12 tons, so totally worth it! |
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Hyperant
New Member
Owner of Hyper Productions
Posts: 32 
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Post by Hyperant on Apr 23, 2017 1:33:01 GMT
 Since i now enjoy creating non-glowy warships that carry large caliber guns that shoot flak shells, something similar to that of the good ole naval days. Something relatively low-tech for me. |
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Post by David367th on Apr 23, 2017 2:26:39 GMT
HD isn't really that good of a fuel if you're going for armor, Methane and Ethane are the better fuels.
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Post by ash19256 on Apr 23, 2017 2:43:29 GMT
HD isn't really that good of a fuel if you're going for armor, Methane and Ethane are the better fuels. If you don't mind admittedly fairly significant reductions in performance unless you are using modded materials, Decane and RP-1 are even better in terms of density and cross sectional area. |
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Hyperant
New Member
Owner of Hyper Productions
Posts: 32
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Post by Hyperant on Apr 23, 2017 3:45:03 GMT
And here i always thought that the less denser the fuel, the more delta-v that you can get for the same fuel mass... Seriously the difference between the two is YUGE.  Mass: 3.48 kt Cost: 35.6 MC |
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Post by David367th on Apr 23, 2017 4:21:47 GMT
And here i always thought that the less denser the fuel, the more delta-v that you can get for the same fuel mass... Seriously the difference between the two is YUGE. Mass: 3.48 kt Cost: 35.6 MC Well the rocket is more efficient, but the mass per volume is rather inefficient, so you loose delta-v by gaining dry mass in armor. There's also issues with denser fuels too, because the wider a ship the more efficiently it uses its volume and denser fuels take up less volume leaving for lower efficiency. Plus of course the lower impulse on rockets. It's why I like Ethane to be honest. |
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Post by newageofpower on Apr 23, 2017 4:24:59 GMT
Well the rocket is more efficient, but the mass per volume is rather inefficient, so you loose delta-v by gaining dry mass in armor. There's also issues with denser fuels too, because the wider a ship the more efficiently it uses its volume and denser fuels take up less volume leaving for lower efficiency. Plus of course the lower impulse on rockets. It's why I like Ethane to be honest. The solution is obvious. Metallized Hydrogen, 12-13x the density of conventional hydrogen, with all the ludicrous exhaust velocity. Please ignore the extreme danger when getting hit in the fuel tanks. |
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Post by David367th on Apr 23, 2017 4:28:50 GMT
Well the rocket is more efficient, but the mass per volume is rather inefficient, so you loose delta-v by gaining dry mass in armor. There's also issues with denser fuels too, because the wider a ship the more efficiently it uses its volume and denser fuels take up less volume leaving for lower efficiency. Plus of course the lower impulse on rockets. It's why I like Ethane to be honest. The solution is obvious. Metallized Hydrogen, 12-13x the density of conventional hydrogen, with all the ludicrous exhaust velocity. Please ignore the extreme danger when getting hit in the fuel tanks.Wouldn't neutronium be just as dense and more noble? Or is it too radioactively unstable to be used?Jesus nevermind, read the wiki on the stuff, don't think you want it anywhere near people. |
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Post by The Astronomer on Apr 23, 2017 4:35:11 GMT
The solution is obvious. Metallized Hydrogen, 12-13x the density of conventional hydrogen, with all the ludicrous exhaust velocity. Please ignore the extreme danger when getting hit in the fuel tanks.Wouldn't neutronium be just as dense and more noble? Or is it too radioactively unstable to be used?Jesus nevermind, read the wiki on the stuff, don't think you want it anywhere near people. Neutron radiation thrusters, anyone? lol |
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Post by gedzilla on Apr 23, 2017 8:01:38 GMT
And here i always thought that the less denser the fuel, the more delta-v that you can get for the same fuel mass... Seriously the difference between the two is YUGE. Mass: 3.48 kt Cost: 35.6 MC Well the rocket is more efficient, but the mass per volume is rather inefficient, so you loose delta-v by gaining dry mass in armor. There's also issues with denser fuels too, because the wider a ship the more efficiently it uses its volume and denser fuels take up less volume leaving for lower efficiency. Plus of course the lower impulse on rockets. It's why I like Ethane to be honest. How is ethane vs methane ? |
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Post by David367th on Apr 23, 2017 9:01:48 GMT
Well the rocket is more efficient, but the mass per volume is rather inefficient, so you loose delta-v by gaining dry mass in armor. There's also issues with denser fuels too, because the wider a ship the more efficiently it uses its volume and denser fuels take up less volume leaving for lower efficiency. Plus of course the lower impulse on rockets. It's why I like Ethane to be honest. How is ethane vs methane ? It's the inbetween of density, cost, and whatnot of the hydrocarbons. In terms of all that ethane is just one step higher than methane. |
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Post by Rocket Witch on Apr 23, 2017 10:37:40 GMT
gedzilla Here are the stock alkanes we have: Name Carbons Density (approx.)
Methane 1 420
Ethane 2 540
Propane 3 580
Butane 4 600
Pentane 5 630
Decane 10 730
RP-1 (Dodecane) 12 770The density jump is big between methane and ethane, and progressively diminishes as the chain lengthens. Their chemical makeaup is all the same, so relative exhaust velocities directly correlate to variations in density alone. Given the armour on your ship, I'd say to try out RP-1. People tend to miss it since it isn't named like the others, and a lot of the older ship designs from before RP-1 was based on dodecane of course used decane.
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