Helm and Navigation
Flight operations aboard any space-faring starship are more complicated than within a 2-Dimensional space due to the lack of gravity to dictate directions we sense physically. Because of this, starships pilots are left to interpret flight operations by instrumentation only.
With the lack of gravity there is an absence of a true sense of up and down. As a means of reference it is generally agreed upon by most races that the galactic plane is the horizontal reference (a ‘galactic horizon’) and ‘up’ is perpendicular to the galactic plane in the direction of the north polar field. So while there is no physical limitations imposed of what direction is up, there are indications of such, and are used as a means for navigational reference.
Contents
When dealing with navigation, within a 3-Dimensional space, especially within a large area, there are two ways to reference direction. One is relative to yourself, the other is relative to where you want to go.
When dealing with the directional control of a ship, one must understand that there are no limitations, aside from those the inertial dampers and structural integrity will handle. While the ship can handle a full skidding (flat, with no bank angle imposed) turn, the standard procedure is to induce a bank angle for all turns; this allows more thrusters to be able to assist in turning the ship.
Terminology
Bow - Forward part of the ship
Stern - Rear part of a ship
Port - Left side of a ship
Starboard - Right side of a ship
Relative Bearing
This is direction in reference to your ship. Bearing angles are always relative to the longitudinal axis of the ship, and are a full 360 degrees; this is the same both in turn and pitch. Both pitch and bank begins at 0. Unless specifically ordered, all directional changes whether to left are right are implied to be at the pilots discretion. In such, a general practice is the turn direction requiring the least amount of correction will be used. For example, all bearing angles 1–180 degrees mean right turns (or pitch up), while angles 181–359 degrees are left turns (or pitch down).
All ordered directions are given in 3 digits, a 90 degree turn to the right would be ordered as 090. The first 3 digits given are always for horizontal changes, turns, where as the second set, separated by a dash in text and verbally stated as ‘mark’ denotes the change in pitch.
Examples: “Turn to a heading of 080 mark 179” would mean a turn of 80 degrees to starboard (right) and a vertical pitch change of 179 degrees. This would cause the ship to be travelling ninety degrees to port of its original direction of travel, inverted relative to the galactic plane.
For orders to ‘inverted’ directions, such as those from the example above, the helm officer will make all effort to keep the ship aligned to the galactic plane by rolling the ship to level. The only exceptions to this are 0 marker 090 and 0 mark 270 where roll has no relevance unless there is a risk of collision.
Course/Heading
“Course” or “Heading” both have the same meaning: The angle between the ship’s track and the straight line to the core of the galaxy. The course is the principal information necessary for the helm officer to a navigate to a distant point. However caution is necessary when using this data. The reason is that since the galaxy is disc shaped, the lines to the core are not parallel but converging. This means that during long trips on a given course the ship’s track will be curved.
Another important issue in setting a course is the random drift caused by the local gravitational fields all along the flight track. The belief that a flight in interstellar space will evolve without any drift is a misconception resulting from the fact that the space – time fabric in interstellar space is almost flat. Following the geometric equivalence, massive space bodies’ gravity fields interact with space – time fabric and finally distort it. The result of this is that the flight path of a starship will be subjected to cross track errors, all along the trip, due to the random drift caused on the space ship following the local distortion of the space – time fabric. As distances in space are enormous, an infinitesimal error or drift of a fraction of degree will result to considerable cross-track errors in tracks and therefore the ship risks never reaching its intended destination point.
It is therefore not advisable to plan a long trip on a given course but rather to give the destination's sector, star system, or galactic coordinates, and leave the ships flight computer to compensate for the deviations from the initial track, and to plot a direct non-curved course. Preparing a flight plan manually involves breaking the track into many "legs" with way points, from star to star and for each leg to have a specific course; this method is recommended for travel in unexplored sectors of space.
As space is in a 3 dimensional plane, all courses must be given as such. Much like a relative bearing, courses will be given as two sets of three digit numbers separated in writing with a dash and verbally as ‘mark’. As for coordinates, they include the latitude and longitude along with the altitude of the destination.
How Far/Fast?
Space is huge. A single sector of space is usually about twenty light-years across, which means it can take a while to traverse it. To get an idea of how fast a ship needs to go at a certain speed, we have calculated a Warp Factor table. For the full information about Warp Factors and how they are calculated, see the Warp Factor page.
A copy of the table is below:
Warp Factor Table
SPEED | KM/H | x LIGHT-SPEED | TO NEAR STAR | ACROSS SECTOR |
Full Impulse | 270 Million | 0.25 | 20 Years | 80 Years |
Warp 1 | 1078 Million | 1 | 5 Years | 20 Years |
Warp 2 | 11 Billion | 10 | 6 Months | 3 Years |
Warp 3 | 42 Billion | 39 | 2 Months | 1 Year |
Warp 4 | 109 Billion | 102 | 18 Days | 2 Months |
Warp 5 | 230 Billion | 214 | 9 Days | 1 Month |
Warp 6 | 423 Billion | 392 | 5 Days | 19 Days |
Warp 7 | 700 Billion | 656 | 3 Days | 11 Days |
Warp 8 | 1103 Billion | 1,024 | 2 Days | 7 Days |
Warp 9 | 1.63 Trillion | 1,516 | 1 Day | 5 Days |
Warp 9.2 | 1.78 Trillion | 1,649 | 1 Day | 4 Days |
Warp 9.6 | 2.06 Trillion | 1,909 | 23 Hours | 4 Days |
Warp 9.9 | 3.29 Trillion | 3,053 | 14 Hours | 2 Days |
Warp 9.99 | 8.53 Trillion | 7,912 | 6 Hours | 22 Hours |
Warp 9.999 | 215 Trillion | 199,516 | 13 Minutes | 53 Minutes |
Warp 10 | Infinite | Infinite | 0 | 0 |