In Star Trek: Nemesis, the Scimitar catches up with the Enterprise-E, despite being at maximum warp.

Considering how the Federation was well known for its warp speed capabilities, how was it possible that an unstable government was able to develop a ship that was much faster than than Starfleet's fastest flag ship (which warp cores were designed by the Federation's leading scientists in that field from other worlds with other experiences)?

This all seems like a plot hole, but is there any specific reason?

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    "the Federation was well known for its warp speed capabilities" Was it? – Lightness Races in Orbit Nov 14 '15 at 15:37
  • Yes, it has been stated many times in the franchise. – VirtualByte Nov 14 '15 at 19:57
  • Was the Enterprise really at maximum warp? – Ellesedil Nov 14 '15 at 20:54
  • When you're outrunning the enemy to a nearby fleet, it would be safe to presume so. – VirtualByte Nov 14 '15 at 21:01
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    @VirtualByte: Can you give an example? – Lightness Races in Orbit Nov 14 '15 at 22:05

This question is not easy if not nigh impossible to answer exhaustively, for a number of reasons. Since my previous answer cited a few misleading facts and in retrospect lacked proper structure, I decided to revise and more importantly, restructure it. So lets look at a few points.

1. What is maximum warp?

The term maximum warp is somewhat loosely defined. Check this Memory Alpha page on Maximum Warp for more details.

Most of the time it's apparently used to describe the maximum warp speed that could be safely maintained for a prolonged but limited period of time. Usually a few hours, maybe a day. There is also cruise speed which is lower (say Warp 6 for example) but can be maintained for several days without issue.

There are examples cited on the Memory Alpha page where ships supposedly traveling at maximum warp accelerated even further. So if the order "Go to maximum warp" is given, it usually means accelerate to the safest maximum. But the engines can be pushed further but either only for a much shorter time or by risking serious damage.

To provide a real life analogy: If you want to drive fast for a prolonged time you don't rev your engine up into the red zone but stay just shy of it, where it's much safer to operate the engine. If on the other hand you need that extra 5 or 10 miles per hour to overtake, you push into the red zone but only as long as you have to.

Maximum warp, the actual maximum achievable speed and the time period these can be maintained vary from class to class or even ship to ship if they have been modified. Which brings us to the next paragraph.

2. Not every ship is like any other and the same is true for their warp drives

Each ship in Starfleet is designed with different purposes, roles and requirements in mind. The Sovereign-class for example was much more focused on combat than previous Starfleet designs, featuring a greater number of weapon systems, better shields and so forth. This also means that it had much greater power requirements then other ships and the warp core is also the power source.

No matter how advanced your warp drives are, there is no such thing as 'one size fits all'. This is why you can't just take a warp drive designed for the Intrepid-class (for example) and put it in a Sovereign-class ship. Creating and maintaining a warp bubble is a masterpiece of engineering and requires to balance the warp drive against the other characteristics of the ships. This is why even with an essentially identical warp drive the outcome can be different.

Other systems on the ship might produce limiting side-effects that keep it from achieving the same results that other ships got out of it. Take the D'deridex warbird for example. It had some major problems because it used a singularity as a power source which was hard to control at high warp speeds. Because of this it could reach the same speed as the Galaxy-class ships but it could not do that safely. This was a pitfall of the used technology however and had nothing to do with an inferior warp-drive.

3. Different sources give different speed or none at all

If you consult various sources for technical specs you will probably get as many answers. The Enterprise-E is apparently never said on screen to do more than Warp 8. At the same time they don't state what maximum warp is for the ship. According to other sources it's apparently around 9.995.
At the same time maximum warp of the Intrepid-class is 9.975. The Intrepid-class was stated in Star Trek: Voyager to be the fastest in the fleet. Later the Prometheus-class was stated to be even faster at Warp 9.99. However this might have been only true at the time the USS Voyager and USS Prometheus launched respectively, since ships were also retrofitted to make use of further advancements in warp-drive and technology in general.
This might have lead to ships ultimately being faster than they were originally capable of. Otherwise the stated maximum warp of the Enterprise-E would contradict the statements about Intrepid-class and Prometheus-class ships being the fastest in the fleet.

The Scimitar on the other hand was stated to be at least capable of Warp 9.7. But his doesn't tell us how fast it could really go or for how long.
At this point I would also like to point out, that the Scimitar was a unique ship. From the get-go designed to be a superior war ship, with superior shields, cloaking and a lot of firepower. Throwing in a powerful warp-drive is only natural. It probably also did not have the same restrictions as Ship-of-the-Line designs like the Sovereign-class or D'deridex which were essentially designed for mass (I use the term loosely here) production. The goal for them was not do build the most powerful ship, but a powerful ship that could be produced in bigger numbers.

4. Movies and TV show do not provide a realistic time scale

We don't really know how long the chase lasted because in movies or TV they don't give you a timescale most of the time. Stuff just happens and you feel like it takes maybe a day for everything to unfold while it actually is supposed to be taking a week.

I couldn't find any reliable information on how far away Romulus is from Earth but given that it's in the Beta Quadrant while Earth is in the Alpha Quadrant I would guess that it takes more than 12 hours even on high warp. We established that ships can maintain their maximum warp only for a limited amount of time so the Enterprise probably could not do the entire trip at Warp 9.995.

5. Overtaking something is not necessarily about top-speed and power

No matter how far away Romulus is from Earth, I think we can all agree that were talking long distance here. In you question you assume that the Scimitar must be faster than the Enterprise-E, because they catch them. It's understandable to think that way because that's how it works most of the time in real life. If you want to pass someone on foot you just go faster. We naturally assume that a powerful car can overtake a slower car by just going much faster. However in the long run average speed is actually more important.

If you're in a marathon and pass someone and then you slow down because you're out of energy, that someone can pass you again and be at the goal before you if they were able to maintain a steady pace. The same happens with cars on the highway and with ships in space. The Scimitar didn't have to be faster than the Enterprise-E. It just had to maintain a higher average. Even if the Enterprise dashed ahead at a higher warp speed, unless they could keep that up long enough to bridge a significant portion of the total distance, the Scimitar could eventually catch up by maintaining a higher average speed. But since we don't exactly know the average speeds of both ships this will remain a hypothetical assumption.

6. Captain Picard would not push the Enterprise

In one of your comments you wrote that the Enterprise would go at maximum warp to reach the fleet as fast as possible. This is only partially true however. If we're talking maximum safe warp, than yes, that's probably what Picard would do. But he would not push the ship beyond reasonable limits. Why? Because he was going into a very dangerous fight with a superior enemy. Going into such a fight is a bad thing. Going into such a fight with a damaged warp core, propulsion system, or otherwise damaged system is nigh suicidal. That is if your ship is not ripped apart or blown to pieces by your warp core. Picard would not risk this. He would run as fast as possible but not beyond reasonable limits and risk getting caught 'pants down'.

7. Romulans have advanced technology and an effective intelligence service

Romulans are one of the major powers in the Alpha and Beta quadrant, although they apparently use some subterfuge to look more powerful than they actually are. They are, however, one of the more advanced races and have also been around for while and had some time to develop their technology.

In some cases they are more advanced than the Federation, although I always got the feeling that they are constantly losing ground technology-wise.

They are also know for their intelligence service which even managed to hijack the Prometheus-class prototype. So even if they started to fall behind they were certainly capable of stealing technology or parts thereof.


Based on these points I don't see how to give an exhaustive in-universe answer. There is no reason to believe that Shinzon was incapable of building a ship that could catch the Enterprise on it's way to Earth. We also don't know for sure that the Scimitar is actually capable of doing so. There are just to many unknowns and missing facts about the entire event.

Which is why I will stay with my initial conclusion: The Scimitar could catch the Enterprise, because the writers wanted it to be that way.

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    Also, en.wikipedia.org/wiki/USS_Enterprise_(NCC-1701-E) shows that the Enterprise-E can go to warp 9.995 according to Star Trek's technical consultant Michael Okuda. – VirtualByte Nov 14 '15 at 20:02
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    The memory alpha article on the Sovereign class says "They could achieve warp 8", but that's only meant to say that's the highest speed we know for certain it could achieve based on canon info, not to suggest there's anything in canon showing that was its top speed. – Hypnosifl Nov 14 '15 at 20:26
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    In fact, immediately after that comment in the memory alpha article there's a note saying: Warp 8 is the highest speed a Sovereign-class ship was known to have traveled on-screen. According to Star Trek: Starship Spotter, the maximum warp of the Sovereign-class ship was warp factor 9.7. However, Star Trek Evolutions gives the Sovereign a maximum warp of 9.985. The latest edition of "Star Trek: Ships of the Line" gives the Sovereign class a maximum warp speed of 9.995. – Hypnosifl Nov 14 '15 at 20:26
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    Yeah, the warp 8 max speed for the Sovereign class in this answer really threw me off. While there's some good info in here, I think there's other info in here that is either wrong or misrepresented. Even ignoring this, I think it only answers half the question. The Enterprise wasn't attempting to outrun anything because Picard didn't know they were being followed. While they were certainly trying to get back to Federation space in a short amount of time, they didn't feel the need to push the limits of their warp engines to do so, which one would do if trying to outrun another ship. – Ellesedil Nov 14 '15 at 20:55
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    Picard knew they were being followed, he wanted the Scimitar to follow him so they did not go after Earth. The Enterprise wasn't enough to take on the Scimitar, the fleet was though (probably, just speculation). If you were being chased, and the only hope of survival you have was a few light years away - wouldn't you jump to the fastest speed you could go to get there before your chaser got to you? – VirtualByte Nov 14 '15 at 21:23

I notice that someone is making the mistake of quoting the wrong stats when telling people about the maximum warp capabilities of the Enterprise E. Maximum warp capabilities of the Enterprise E sits at warp 9.999. The ship was built 'after' the Voyager. The major mistake they make is this...it is clearly stated that the 'sustained cruising speed' is Warp 9.999...which means that the Enterprise E is capable of traveling at this speed indefinitely. Even these numbers are rounded off though...meaning they are incorrect...as you can actually find the technical readouts in the TNG technical manual. This gives the Enterprise D a max Warp of 9.9999. Considering that Warp speed ratings are also exponential...that 0.0009...is a huge increase in speed.

The answer here is actually much simpler that many think. As long as the Scimitar was capable of traveling at warp factor of 0.00000000001 faster than the Enterprise E...it would have overtaken it since the mathematics is, as stated, exponential.

We should also remember that, since the Enterprise E was built after the Voyager was lost (Voyager was lost in the year 2371 and the Enterprise E was built in the year 2373...one year before the events of Star Trek: First Contact)...in this case...all the technology available at the time that Voyager was built with was technically available for the construction of the Enterprise E. There is no reason to believe that the same tech wasn't used to build both ships. The Voyager then returned to Earth in 2378...events of Nemesis took place in 2379. It is plausible that all outfitting took place after the Voyager returned. All new tech available was likely scheduled to be refitted, first and foremost, for the 'Flagship' of the fleet. I mention this because of the fact that Tom Paris...this is documented in the show...created a Warp vessel capable of reaching Warp 10. So The Enterprise E would have been, easily, as fast or faster than the Intrepid and the Prometheus Class ships (built in the mid 2370s).

It is also confirmed,...The Enterprise E underwent the actual refit about a year before the events of Nemesis as well...so it stands to reason that, while more weapons were added...a new, faster, warp drive was installed as well. This would make the 'E' just as fast (at least) or faster that the speeds stated by other commentators.

Timelines are very important in a question like this...technical readouts are another...one cannot just read out of date information to make claims about conclusions.

The issue with this is that the max Warp speed of the Scimitar, by all available sources, is actually 'unknown'...but does have a Warp rating of at least 9.7. We cannot assume that the Scimitar is fast, nor slower, that the Enterprise E based on any given data anywhere. We just have to take it as fact that it is faster though....because that is what is shown to us in the movie.

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    This seems to be mainly a comment on posts other than the question. The question was how could the Scimitar outrun Enterprise-E. The answer seem to boil do to just "because it was faster". – Blackwood Sep 24 '17 at 19:32
  • It probably is...but the issue with replying to an answer is the limit on characters...my comment needed more space so I gave it the space needed. I also felt that more background info was needed to further understand the particulars behind what speeds the Enterprise E could actually go...since the wrong information was being given to begin with. – Michael Hamilton Sep 26 '17 at 23:03

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