Vince
Vice Admiral
Posts: 1574
Joined: Fri Apr 09, 2010 11:43 pm
|
feyhunde wrote:I'm of the built in Beowulf camp as well.
First, we know Beowulf has a long history of being the premiere place for Impellar drives and Sails. They were invented there. We know nations that could afford it bought either their ships or impellars from the sollies for a long time. It was a big deal when Manties could start making fusion plants and impellars and no longer needed to import them. There has to be a significant reputation even now to Beowulf's yards.
What makes sense to me is Beowulf probably has a good export market for all sorts of ships and key parts like impellars and fusion plants. Historically it was probably the earliest maker of SDs. The Scientist class including Beowulf Scientists even suggests to me that some were built in Beowulf.
We know the SLN has a steady on going refit and new construction process. Just a handful of SDs are built, mostly to keep the skills alive. Beowulf would be a likely contract for some of those deals. However, we also know the SLN's corruption runs deep. That said, it may be possible the size of the BSDF is in part a political measure to keep the ship building skills alive. Ordering handfuls of ships spaced out over years. The occasional order or refit deal comes in from the SLN, as well as the occasional acceptable customer, such as another core SDF, who appreciates the Beowulf lack of corruption.
I'm sure Technodyne and its ilk build a fair share. But I'm also sure wealthy SL worlds which aren't corrupt wanting a squad of SDs just in case would prefer to buy from someone whose going to be honest.
While the impeller drive was invented on Beowulf, the Warshawski sail was invented on Earth: More Than Honor, The Universe of Honor Harrington, (1) Background (General) wrote:Then, in 1246 pd, the first phased array gravity drive, or impeller, was designed on Beowulf, the colonized world of the Sigma Draconis System. This was a reactionless sublight drive which artificially replicated the grav waves which had been observed in hyper-space for centuries. The impeller drive used a series of nodal generators to create a pair of stressed bands in normal-space, one "above" and one "below" the mounting ship. Inclined towards one another, these produced a sort of wedge-shaped quasi-hyper-space in those regions, having no direct effect upon the generating vessel but creating what might be called a "tame grav wave" which was capable of attaining near-light speeds very quickly. Because of the angle at which the bands were generated relative to one another, the vessel rode a small pocket of normal-space (open ahead of the vessel and closing in astern) trapped between the grav waves, much as a surfboard rides the crest or curl of a wave, which was driven along between the stress bands. Since the stress bands were waves and not particles, the "impeller wedge" was able, theoretically, at least, to attain an instantaneous light-speed velocity. Unfortunately, the normal-space "pocket" had to deal with the conservation of inertia, which meant that the effective acceleration of a manned ship was limited to that which produced a g force the crew could survive. Nonetheless, these higher rates of acceleration could be maintained indefinitely, and no reaction mass was required; so long as the generators had power, the drive's endurance was effectively unlimited. In terms of interstellar flight, however, the impeller drive was afflicted by one enormous drawback which was not at first appreciated. In essence, it enormously increased the danger grav shear had always presented to reactor drive vessels, for the interference between the immense strength of a grav wave and the artificially produced gravitic stress of an impeller wedge will vaporize a starship almost instantly. In the military sphere, it was soon discovered that although the bow (or "throat") and stern aspects of an impeller wedge must remain open, additional "sidewall" grav waves could be generated to close its open sides and serve as shields against hostile fire, as not even an energy beam (generated using then-current technology) could penetrate a wave front in which effective local gravity went from zero to several hundred thousand gravities. The problem of generating an energy beam powerful enough to "burn through" even at pointblank ranges was not to be solved for centuries, but within fifty years grav penetrators had been designed for missile weapons, which could also make full use of the incredible acceleration potential of the impeller drive. Since that time, there has been a constant race between defensive designers working new wrinkles in manipulation of the gravity wave to defeat new penetrators and offensive designers adapting their penetrators to defeat the new counters. The interstellar drawbacks of impeller drive became quickly and disastrously clear to Beowulf's shipbuilders, and for several decades it seemed likely that the new drive would be limited solely to interplanetary traffic. In 1273 pd, however, the scientist Adrienne Warshawski of Old Terra recognized a previously unsuspected FTL implication of the new technology. Prior to her Fleetwing tests in that year, all efforts to employ it in hyper-space had ended in unmitigated disaster, but Dr. Warshawski found a way around the problem. She had already invented a new device capable of scanning hyper-space for grav waves and wave shifts within five light-seconds of a starship (to this day, all grav scanners are known as "warshawskis" by starship crews), which made it possible to use impeller drive between hyper-space grav waves, since they could now be seen and avoided. That, alone, would have been sufficient to earn Warshawski undying renown, but beneficial as it was, its significance paled beside her next leap forward, for in working out her detector, Dr. Warshawski had penetrated far more deeply into the nature of the grav wave phenomenon than any of her predecessors, and she suddenly realized that it would be possible to build an impeller drive which could be reconfigured at will to project its grav waves at right angles to the generating vessel. There was no converging effect to move a pocket of normal-space, but these perpendicular grav fields could be brought into phase with the grav wave, thus eliminating the interference effect between impellers and the wave. More, the new fields would stabilize a vessel relative to the grav wave, allowing a transition into it which eliminated the traditional dangers grav shear presented to the ship's physical structure. In effect, the alterations she made to Fleetwing to produce her "alpha nodes" provided the ship with gigantic, immaterial sails: circular, plate-like gravity bands over two hundred kilometers in diameter. Coupled with her grav wave detector to plot and "read" grav waves, they would permit a starship to literally "set her sails" and use the focused radiation hurtling along hyper-space's naturally occurring grav waves to derive incredible accelerations.
Italics are the author's, boldface and underlined text is my emphasis.
------------------------------------------------------------- History does not repeat itself so much as it echoes.
|