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How Plausible IS Fusion-Powered Warp Drive?

Who had/has fusion-based warp?

  • The Romulans until at least the 2260s, but never Earth.

    Votes: 0 0.0%

  • Total voters
    26
No, some fusion reactions do produce fantastic amounts of gamma radiation as well as high energy plasma.

I could buy that dilithium crystals convert gamma ray photons into charged gravitons and antigravitons. In that case, even a fission reactor could probably work.
 
I've always been of the opinion that the Phoenix used a fission reactor. :)

I'm not sure about gravitons/antigravitons. What use would those be in producing energy in a reactor?
 
In fact, I like to go even farther and interpret, unless someone can point me to irrefutable evidence to the contrary, that the NX-01 had a fusion engine. My rationale for this assumption is as follows:

Although I can't find it referenced anywhere, I believe that it was once stated in one form or another (perhaps dialog?) that it did use matter/antimatter, or at the very least a 'hatch' on top of the reactor was described as a dilithium access hatch. So unless we need dilithium to convert energy from fusion reactions...

1)The Earth-Romulan War was fought with atomic (which is clearly meant to be read as "thermonuclear") weapons;
2)An antimatter explosive is a better than a fusion device by a factor of well over a thousand assuming similar levels of efficiency (afaik it's the most efficient method of energy release physics even allows);
3)Given antimatter production on a scale able to support the NX-01, not to mention the allied Vulcan, Andorian, and Tellarite ships with similar performance and built in greater numbers, antimatter weapons would be used in preference to atomic ones;
4)Hence, my preferred interpretation is that the NX-01 used a fusion engine.

In some thread or other (:p) Praetor pointed out some counterarguments to this line of reasoning, namely that antimatter might be so expensive in the 22nd century that ubiquitous use might be prohibited. Unfortunately, I disagree with this hypothesis. Firstly, very small amounts of antimatter need be used to be militarily useful, probably amounts significantly smaller than those needed to run a starship. Secondly, antimatter is so militarily useful that it would probably be preferable to employ it as a weapon than a fuel source. Like naval battles, most major combat in the Romulan War is likely to occur near solar systems, not in open space. Speed is surely far less useful than weapons that make nuclear bombs look like firecrackers.
I actually basically agree with you, despite my provided counterarguments in that other thread. In fact, I agree that most of the ships that fought in the war would probably be fusion-powered, since it does seem workable. I just think that the NX class probably used matter/antimatter, and that wartime ships rolled back to the tried-and-true fusion method. And I also agree that at that stage antimatter probably existed in such small amounts that it had to be rationed carefully. So if 90% of weapons were cheap-o nuclear bombs and pulse/phase lasers, maybe 10% of weapons were the antimatter equivalent of the A-Bomb?

If evidence from ENT contradicts this, I'm afraid I'll have to go with my fallback position, which is that the entire show was Riker playing a video game.:p
You mean the same historically imperfect holodeck recreation we saw on UPN? ;)

Praetor - I put my $0.02 worth in on a similar subject not too long ago (and in this economy, $0.02 ain't what it used to be). Regarding Scotty's statement in BoT, I had always thought that the Bird of Prey being impulse only was a result of it basically being a gun platform. For FTL requirements, the ship attached to a larger mother ship that had warp drive capabilities.

Similar to the US A-10 aircraft. It is essentially an airframe wrapped around a big gun in the nose (even the nose landing gear is off center to make room for the gun).

I agree with the theory of the BoP as a flying gun. Have you ever had a look at the deck plans that have been done for the BoP? They have giant machinery for the plasma gun dominating a large part of the bow of the ship. They're online, found here.

I'd thought for a long time that it had no warp drive too, but the more I thought about it the more I found it hard to accept that she didn't have some form of warp drive due to the strikingly similar nacelle pods.

I am going to have to watch the episode again, but it is also possible that the bird of prey is impulse only when cloaked (as may have been suggested above). Similar to she can only fire when not cloaked, she can only move at warp when not cloaked, due to the power requirements of the cloak.
I think this is the safest assumption - she had some warp capacity, but would need a mother ship to be ferried long distances. Perhaps this is something the Romulans started in the E-R War that carried over for a while until they acquired D7s to supplement them, and then developed alternative long-range propulsion. Alternatively, this might be the only Romulan ship that is limited in this way, due to the plasma weapon. Other birds-of-prey might not even have the weapon. The ones in 'The Deadly Years' seemed to due to effects re-use, but then the Enterprise seemed to take several hits of whatever that weapon was, which seemed unlikely with the plasma weapon. Perhaps this was a low-power variant that allowed greater warp speed and range?

You know, that brings up something I hadn't thought of. The Romulans had Klingon D7s, and according to 'The Voyage Home,' the bird-of-prey at the very least had a dilithium-based power core, which to me means M/AM.

So theoretically the Romulans might have then indeed had M/AM circa 2267 despite my thoughts about them ignoring it in favor of the artificial quantum singularities!

I wonder why the Romulans would have favored the singularities if it was less efficient for warp speed as stated, unless there are other benefits? This seems to even more strongly point to the Romulans having an antimatter shortage.

The big problem with fusion reactors for drives is that they'd consume a lot of fuel. Probably 70% of the ships mass or so would be devoted to fuel, and the reactor would consume it rapidly. As for fusion reactors not being powerful enough to power warp flight - we'd need to know exactly how much power is needed to warp space and propel you beyond the speed of light to know that.

These are excellent points. However, both the early Earth ships and Romulan ships seemed to have limited speed and range. This could make Bussard collectors a much more important component of early-era warp ships that has previously been supposed. Imagine skimming a hydrogen-heavy nebula to refuel rather than carrying massive fuel tanks.

And a fission-powered Phoenix would work for me, Juan.

Right. We don't even know exactly what dilithium crystals DO, dude.

For my money, they convert the gamma rays produced by a M/AM reaction into usable power. That kind of thing wouldn't do a battery much good at all. Nor would it be very useful in a fusion reaction.

All of this has actually led me to a rather intriguing idea.

If dilithium is some sort of catalyst that translates the M/AM reaction into power, what if dilithium could ALSO be used to translate small-scale fusion reactions into power, thus permitting them to achieve fusion-powered warp without gigantic fuel tanks?

That could even allow for the NX-01 to have a fusion reactor power system, if all that is refenced is the dilithium. Hell, that could even allow Kirk's BoP (and perhaps even D7s) to have a fusion reactor power source while dilithium is present.

Has it ever been clearly stated what powers Klingon ships? I know there was mention of the 'tritium intermix' being what allowed a single Klingon ship to survive the Second Battle of Chin'toka, but did they clearly state it as being part of the ship's M/AM intermix? Memory Alpha states that the change made that allowed the ship to survive was in regard to a 'warp core containment problem.' Very vague.

Thoughts?
 
^^Praetor - Thank you for the link. I have been to the site before, but haven't had the time to really peruse all of the blueprints.

As for the ST III and ST IV, I know the matter to which you are referring - that this was a Romulan ship stolen by Kruge to go to Genesis. The problem is that the storyline never made it to the film (I am not even sure if it made it to the novelization of the movie). That leads me to believe that these are older model Romulan ships that the Klingons have refit with M/AM reactors rather than the standard singularity engines installed in all romulan vessels.

Of course, it is also possible that the Romulans transferred the ship, but removed the power generation units (the singularity engine) before the transfer. This would necessitate the Klingons using the M/AM engines with which they are familiar.

It also may explain explain why we never saw a Romulan BoP like that in ST III, TNG, DS9, and Voyager. The Klingons had several different types (if you go by FASA, they had 3, the BoP, the Larger Bird and the Great Bird, I think I am remembering the names properly). The Romulans couldn't get them to work or were unsatisfied with their performance in some way, perhaps due to the type of engine they use. The Klingons slap in a M/AM engine and turn in into their favorite design with multiple iterations over time. Again, just my $0.02.
 
Realistically?

Given what we know today and the capabilities shown in Star Trek, fusion reactors couldn't even propel ships at sublight much less FTL.

You can't even zip around at sublight speeds on the power provided by a fusion reactor.

Realistically, even the impulse engines would have to be antimatter powered.
 
Realistically?

Given what we know today and the capabilities shown in Star Trek, fusion reactors couldn't even propel ships at sublight much less FTL.

You can't even zip around at sublight speeds on the power provided by a fusion reactor.

Realistically, even the impulse engines would have to be antimatter powered.


But that's the beauty of the impulse drive. Sets of low-powered subspace coils take plasma generated by the fusion reactions and use it to create a low-powered subspace field which lowers the ship's effective mass. Then the remaining plasma works as Newton intended, pushing the ship along as it is shoved out the back of the ship.
 
I guess I'll have to take a break from the soap operas and check out the launch sequence in First Contact and see what's what.

As it stands now, I think the Phoenix had a M/AM reactor, but no dilithium (the thing only went a hair over Warp One), with the regulation of the plasma flow coming from the restrictor coils in the transfer conduits.

As for the Romulan BoP, if that thing ran on fusion, then it'd have to have some dilithium in the system in order to focus that plasma intensely enough to get above sublight.

(Some time later...)

Well, there's a reference to the plasma conduits and the warp core, but nothing regarding the actual power source.

Maybe some of the cockpit graphics could shed some light on this....
 
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That leads me to believe that these are older model Romulan ships that the Klingons have refit with M/AM reactors rather than the standard singularity engines installed in all romulan vessels.
Fair enough. We know that the two species traded technology during their alliance. I think, however, that the singularity reactors in Romulan ships were a 24th century invention, not in use in the 23rd.
 
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As for the ST III and ST IV, I know the matter to which you are referring - that this was a Romulan ship stolen by Kruge to go to Genesis. The problem is that the storyline never made it to the film (I am not even sure if it made it to the novelization of the movie). That leads me to believe that these are older model Romulan ships that the Klingons have refit with M/AM reactors rather than the standard singularity engines installed in all romulan vessels.

Interesting, you actually have a slightly different take on this. I was actually working from the assumption that it was a Klingon ship from the start... I know about that dropped line but have pretty much always taken for granted since line was dropped that this was a Klingon ship from the get-go. Whether it's a Romulan design is certainly debatable.

My point moreso was that it seems like the Romulans would have, one way or the other had access to M/AM reactors, or at the very least, reactor designs.

Of course, it is also possible that the Romulans transferred the ship, but removed the power generation units (the singularity engine) before the transfer. This would necessitate the Klingons using the M/AM engines with which they are familiar.

I am reasonably sure that Kruge's BoP, even it was a Romulan design, would not have yet had a singularity core either way. Like Juan said, I think Rick Sternbach placed it as a 24th century innovation. I really need to find that article, it might clear up a lot of this, at least from his perspective, which I tend to take as canon.

However, your suggestion of powerplant removal does offer a good solution to the D7s and a possible explanation for the Romulans actually never having working M/AM at all: the D7s they were given were just stripped down partial-builds, that the Romulans had to finish fitting out with, among other things, a power plant of their own.

It also may explain explain why we never saw a Romulan BoP like that in ST III, TNG, DS9, and Voyager. The Klingons had several different types (if you go by FASA, they had 3, the BoP, the Larger Bird and the Great Bird, I think I am remembering the names properly). The Romulans couldn't get them to work or were unsatisfied with their performance in some way, perhaps due to the type of engine they use. The Klingons slap in a M/AM engine and turn in into their favorite design with multiple iterations over time. Again, just my $0.02.

As good an explanation as any. I tend to think of the Romulans switching to bigger ships as a reflection of cultural thinking shifting. Since the plasma-weapon BoP seemed to be designed as a flying gun platform, perhaps with Starfleet and Klingon ships growing bigger and bigger, plus the combined threat of their potential alliance, the Romulans shifted focus from having many small ships to fewer (although not that few considering how many D'Deridexs we saw) large ships, thus also fueling the development of the singularity drives.

And for all we know, whether Kruge's BoP was a Klingon design or a Romulan design, perhaps the Romulans did operate them for a time, and we just didn't see them. It does seem like their mode of attack fits more with the Klingon mindset of the 24th century than the 'shock and awe' of the Romulans and their gigantic ships.
 
I don't think fusion would be as energy-efficient as a matter/antimatter reaction.

Sure you'd get energy from fusing two hydrogen atoms into a single helium atom, but converting two hydrogen atoms into pure energy? That's like speed-of-light-squared times more powerful.
Not more powerful - a fusion reaction generates power from mc² conversions too. The difference between fusion and matter/antimatter reactions is in the linear m term - you simply convert a LOT more of your fuel into energy in matter/am.
 
It has always been my impression that Earth's 1st and possibly 2nd generation warp drives were powered by a fusion powerplant. I figured the matter/anti-matter plants came later, maybe mid to late 22nd century.

And yes, Trip specifically mentions that the warp core uses anti-matter in one of the eps. I don't remember which one, by I definately remember him saying it. Seeing as the ship had a major speed boost from older Earth ships, I think it makes sense that she have a M/AM powerplant.

As for the Roms, Yes, the Bird of Prey from BOT had warp drive, but it was powered by a fusion powerplant which could only provide enough power to operate one of the ship's three energy hogs - Plasma Weapon, Cloak, and Warp Drive - at a time. Is this really so difficult a concept to understand?
 
As for the Roms, Yes, the Bird of Prey from BOT had warp drive, but it was powered by a fusion powerplant which could only provide enough power to operate one of the ship's three energy hogs - Plasma Weapon, Cloak, and Warp Drive - at a time. Is this really so difficult a concept to understand?
I've always wondered why people have such a hard time rectifying this as well.
 
^That's my preferred interpretation as well, TM notwithstanding (according to it, dilithium does nothing particularly special, it fills the function of a magnetic field). Seeing dilithium as a perfect mirror to gamma and x-radiation, allowing it to be contained, is perhaps a better use.
 
Remember how concerned the Romulans in Balance of Terror were with their fuel running low? This is exactly the kind of thing you'd see with a fusion reactor, especially after spending a lot of your time running a power-hungry cloaking device and firing a plasma weapon that presumably draws its plasma right from your reactor chamber.
 
I couldn't answer the poll in good conscience since the NX is not part of Star Trek. But if that was removed from the possible answers then I would have voted for the first one. Both Earth and Romulans.

I found it reasonable that Cochrane used avaiulable materials in the construction of the Phoenix. He built his own ship but used an existing launch vehicle. So I think it's highly unlikely that he would have used matter and antimatter. The only thing that matters with warp engiens it getting drive plasma to the coils. What you use to create drive plasma is irrelevant. But Since Cochrane but the Phoenix out of a nuclear missle I figured he used the *tada* nuclear warhead to energize the deuterium and create the drive plasma.
 
As for the Roms, Yes, the Bird of Prey from BOT had warp drive, but it was powered by a fusion powerplant which could only provide enough power to operate one of the ship's three energy hogs - Plasma Weapon, Cloak, and Warp Drive - at a time. Is this really so difficult a concept to understand?
I've always wondered why people have such a hard time rectifying this as well.

I don't have a hard time with it. I just never put much though into it until I read the question here on the boards. It makes perfectly good sense to me.:cool:
 
As for the Roms, Yes, the Bird of Prey from BOT had warp drive, but it was powered by a fusion powerplant which could only provide enough power to operate one of the ship's three energy hogs - Plasma Weapon, Cloak, and Warp Drive - at a time. Is this really so difficult a concept to understand?
I've always wondered why people have such a hard time rectifying this as well.

I don't have a hard time with it. I just never put much though into it until I read the question here on the boards. It makes perfectly good sense to me.:cool:
Yeah, I didn't mean to name names or point fingers and laugh. There are just a lot of people who are really perplexed and frustrated by it.
 
I read somewhere that someone had worked out a possibility for some space-time fabric bendy concept similar to our beloved warp drive. Their very rough estimates place the amount of power needed to be along the lines of converting the mass of a jupiter sized planet into energy.

That's a LOT of energy, and I don't have a feel for how big a sustained fusion reactor would be for any amount of output. I'm guessing that something with that kind of output is unrealistic for fusion.
 
I read somewhere that someone had worked out a possibility for some space-time fabric bendy concept similar to our beloved warp drive. Their very rough estimates place the amount of power needed to be along the lines of converting the mass of a jupiter sized planet into energy.

That's a LOT of energy, and I don't have a feel for how big a sustained fusion reactor would be for any amount of output. I'm guessing that something with that kind of output is unrealistic for fusion.
That would be the Alcubierre warp drive:

http://en.wikipedia.org/wiki/Alcubierre_Warp_Drive

It will work, if we can generate the power and figure out how to build a machine that will actually bend space-time in the manner needed. Raw power (reactor) isn't enough - you have to have the mechanism (nacelles).
 
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