If a space rock comes at the ship from above the saucer, then it is obscured by the saucer. From it's position on the ship, it only deflects a small part of the stuff in the way. It also deflects a lot of stuff that is in no way going to hit the ship, since it is so far from the center line.
Jefferies assigned the dish the role of "main sensor" according to his illustrations reproduced. It was retasked into a navigational deflector by Franz Joseph and that designation stuck for the subsequent installments. The
TOS deflector field probably emanated from the hull lines in order to provide protection from every direction.
So? If a shuttle loses control and smashes into that bulkhead... You lose your warp reactors? If a terrorist smuggles a small bomb onboard a shuttle... then it disables the ship? If an enemy shoots right into the shuttlebay, then that bulkhead should be as strong as the outer hull if it is to protect the structural integerity of those struts. That seems like a waste. And what about moving all those supplies and equipment that you bring aboard the shuttlebay... right past such a critical part of the ship. If anything, the shuttlebay should be in its own nacelle in case of an accident.
Jefferies designed the warp nacelles to be self-contained units (as the repeated references to "anti-matter nacelles" suggest), so presumably there was no risk of a containment breach in the event of a shuttle crash or terrorist attack.
In
Obsession, radioactive waste was vented from the impulse engines.
"Captain, I cleaned the radioactive disposal vent on number two engine, but we'll be ready to leave orbit in a half hour."
"Open hatch on impulse engine number two."
"Mr. Scott was doing an A.I.D. cleanup on it."
"We won't be using the impulse engines. Turn the alarm off."
"When it entered impulse engine number two's vent, it attacked two crewmen, then got into the ventilating system."
http://www.voyager.cz/tos/epizody/48obsessiontrans.htm
And there doesn't have to be a major accident. What if the accident occurred during the cleanup procedure?
The fact that Starfleet stuck with the embedded impulse engine design well into the 24th century strongly implies that such risks are minimal.
What about a glancing shot? Or simply moving from the bridge to other areas of the ship. If you need to get to the bridge, it will take longer than necessary.
See above.
And so, Matt Jefferies wasn't perfect. Neither are the producers for the new show.
Possibly not, but he and GR were designing a technological universe from the scratch. J.J. Abrams isn't.
Is there even room to get there?
There certainly is for a crawl-way.
Why waste bringing life support up that far in the ship's structure.
The aforementioned crawl-way would be connected to the habitable parts of the engineering hull, so the only dedicated life-support requirement would be ventilation fan.
Don't have remote cameras in the 23rd century?
Sure they do, but there is nothing wrong with a Mark I Eyeball backup.
Couldn't that use some "subspace technobable field" to scan with?
Possibly.
The Enterprise has FTL sensors.
Yes, but it also uses standard EM and particulate sensors when appropriate, such as employing infra-red detectors to search for warm bodies from orbit in
Mudd's Women.
Why do you assume that sensor only detects gamma rays?
I made no such assumption.
That's why the the heat sink in my computer case is directly exposed to the atmosphere and is not inside any case whatsoever. Right?
Computer heat-sinks use convective cooling, not radiative.
And why doesn't the impulse engine get a heat pipe?
The same reason present-day rocket engines don't need a separate cooling system: The exhaust product removes excess heat from the thrust chamber.
The Refit employs planar radiators on the outboard surfaces of the nacelles, as Matt Jefferies was aware that STS which was being developed at the same time would use planar radiators in the cargo bay doors for thermal control.
No idea, but then I haven't expended much thought on
TNG since it was cancelled.
And if those "fins" on the refit Enterprise are heat pipes...
They aren't
...why can't the fins on these craft be heat pipes too?
The
TOS NCC-1701 employed heat pipe radiators.
ST:XI is set in the
TOS time frame, therefor in my humble opinion the Kelvin - being a Starfleet design - should have used heat pipe radiators as well.
Then why do you gripe about the new 1701 which likewise could have a radiator the size of a penny. Don't criticize the ship and compare it to the 1701 when it can likewise have just as many flaws with just as likely fixes.
Fine. Consider my arguments unreservedly ceded.
In TOS (and, indeed, in most of the movies), the dish was not the deflector.
It was in
ST:TMP, as its presence on the Kimble blueprints (and Ilia's mention of "navigational deflector inoperative" during the wormhole sequence) demonstrate.
TGT