Phongn,
I think we've actually seen exoatmospheric operations conducted with the LAATs (the "Hind-lookalike" gunships). You're discounting Star Wars material science a bit: with their available thrust, antigravity systems and extreme thermal resistance, re-entry just isn't a problem for them.
Localized hits from blasters (Geonosis Arena: the LAAT flares to a hover and several flashes across it's belly are shown) are one thing. Massive Q and Thermal increases across the entire front half of the ship are different.
In 'The Clone Wars' /cartoon/ there is obvious sign of LAATs in orbit as the final Separatist Assault gets underway, including opening the side doors on a nominally free vacuum hangar. I never doubted that either repulsorlift tech works in space (something I've assumed ever since ANH when X-Wings bank and pitch and maintain constant forward thrust without acceleration) or there is some other equivalent zero point theorem propulsion in action.
I just don't see the utility of making all these nominally cheap 'hueys' into transatmospheric capable ships IF they are going to be brought into atmosphere by motherships to operate at sub 300 knot, sub 15K foot, altitudes.
Economically (replacement costs) and by deckspot/mass it just doesn't make much sense to halve your total force size to double the price of a system that you then turn right around and bring into atmosphere anyway.
Particularly since cleaning up the airframe (via new design) can only help in terms of _active shield envelopes_ and blaster deflection as well. In the original Han Solo trilogy, the use of shields to smooth the spaceframe of the YT-1300 is mentioned several times as the Falcon 'glows' after Han makes a smuggler's descent to impress a girl.
Further, given the gaping engine holes, projecting (tiny) gun tubes and generally poor in-atmosphere (straight wing) design of ships like the X-Wing, it is virtually impossible to believe that these ships are EITHER entering or exiting atmosphere at the kinds of accelerations shown in the original ANH (speeds they would have to be able to achieve to intercept the Death Star while /circumnavigating a gas giant/; Jupiter being some 280,000 miles around) without an active-ablative shield technology.
Anymore than a meteor or small asteroid would be able to survive 40,000mph (i.e. 4-5 times less than the X-Wings achieve at Yavin) speeds.
And if shields are necessary for atmosphere penetration then this-
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Infantry gunships were equipped with atmospheric containment shielding and could be deployed from space, although their optimal fighting range was still in the lower atmosphere, where they could reach speeds in excess of six hundred kilometers per hour.
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http://starwars.wikia.com/wiki/LAAT/i
Would not be the only _environmental_ protection system mentioned.
Nor would this-
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The HAET-221 was 17.2 meters long, and armed with antipersonnel blasters and a larger anti-vehicle laser cannon. These short-range ships were launched from low orbit, and used positional rockets to help them reach their target destinations. Once they entered the lower atmosphere, repulsorlift units were used to propel these craft. The HAET-221 usually flew at a low altitude of several meters, although it was capable of reaching an altitude of several kilometers. Once in a planet's atmosphere, these ships were incapable of returning to space on their own.
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http://encyclopedia.wizards.pro/index.php/HAET-221
Be necessary as a followon/supplemental system.
Such is why I believe that, as the war wound on and both the sizes of the deployed forces grew and the 'coastal defense' equivalent systems prevented heavies from penetrating atmosphere; it became necessary to invest in both fewer, larger, transport hulls to transport larger numbers of forces (probably conscript).
And to compensate for increasing costs by by removing atmosphere penetration (or at least /landing/) capabilities and letting smaller assault craft take in the forces with fewer troops at risk, per load.
This gets into the strategies of the GAR and Separatists as a whole. If you have 50 million worlds and only 3 million clones you cannot maintain even a paltry battalion sized (minimum 1,000 man unit considered capable of independent combat ops in the Marines) garrison on more than a handful.
Here on SDN we've pretty much discounted the puny three-million-clone army as ridiculous.[/quote]
Fair enough, I suppose Spaarti Cylinder improvements might be fast enough to create larger forces though the age-acceleration problem of raising up forces with, ahem, 'considerably less than 10 years' worth of growth cycle (the actual Clone War was what, 3-4 years, long?) would still leave a lot of psychological and phystical problems.
Indeed, probably the biggest farce of the entire PT is the notion that droids which weight 300-500lbs and are made from metal 'through and through', while able to sustain running speeds compatible with fast moving ground vehicles (Geonosis battle plain) are somehow more vulnerable to direct fire than 200lb Clones wearing, essentially, plastic armor. Lucas effectively makes The Jedi look like idiot has beens in dire need of replacement and then makes a 5'7", pudgy, Temura Morrison into the superman followon force without a single comment as to 'how that works'.
Because he knows it cannot.
You don't use GE and Clone tech to make slaves. Indeed, if you're going to invest the HUGE amount of time, money and educational resources inherent to artificially creating life, making mindless flesh-'bots is ridiculous because, as Obiwan himself said: "Well, if droids could _think_, none of us would be here...". And absolute loyalty to orders = absolute lack of creative tactical innovation on the battlefield = soldiers who don't live very long against physically superior battle droids.
OTOH, if you make your creation as perfect and all-doing as possible as a cadre` force. Then you fill out the ranks with conscript troops whose childhood rearing is already paid for and who (as adults) can be trained in a matter of months, not years.
Now you have a force to be reckoned with.
Once you acknowledge that simple fact as well as 'readmit into evidence' the things that ONLY the Jedi can do (crush 5-6 droids at a time, run celerically, augment armor with saber defense), your choice of archetype to model your 'perfect warrior' from becomes obvious.
For whatever reason, Lucas hates The Jedi so much that he avoids common sense as much as counter-elitist notions of what cloning is really good for. Again, 'only in America' (land of the free, home of the all-volunteer professional military), do we see such contradictions in what works (5 trillion beings in the SWU) vs. what is necessary (the best commandos you can find).
Saberist