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Why do the Vipers in Battlestar Galactica use skids as landing gear instead of wheels?
Did they use the skids when landing at airfields back in the colonies?
I'm mostly interested in in-universe explanations but I would also be very interested in why the prop designers didn't go for wheels.
If you watch a Viper landing on the deck of BattleStar Galactica Ideally they come to a Hover and then lower the Landing Gear and drop down. wheels would make this action more unstable and in any case brakes would need to be applied to stop the wheels moving creating more mechanics that can go wrong. in addition when taking off the legs are retracted so wheels would not make launching easier.
Finally the use of Skids allows for a magnetised Docking Bay that locks the Vipers in position meaning that if the Battlestar rolls, vibrates or moves the Vipers are less likely to slide around the deck causing injury.
@ Revenant Tyres in space would work, but they would have to be Solid and not filled with gas.
I think the argument about pneumatic tyres is irrelevant, and also uninteresting. You could have gear with metal tyres (like a train has). More interesting is why no wheels at all?
Let's look at the role of the gear during take-off. When a Viper is accelerated along the launch tube (presumably using some kind of magnetic rail system, in addition to the Viper's engines) it apparently reaches combat speed on exit. Today's ship-launched jet fighters have wheels and reach take-off speed (in atmosphere), but nothing close to combat speed.
What would be the risk of a wheel fouling in the launch tube, at combat speed? It would probably be catastrophic to the Viper and serious for the Battlestar.
For that matter skids wouldn't be much better, if there was some foreign object in the tube.
Looking at some images on the Net, it seems that for the launch the Viper is mounted onto a catapult under the main fuselage
Those images are both of the same model by model maker Ian Lawrance - awesome work!
My in-universe conjecture here is that the gear are not involved in take-off, only in landing, and the use of skids makes it easier to engineer a gear which can retract to become flush to the fuselage. Also, the Viper's deck operations take place in zero or controlled gravity where wheels would not assist, so they are not necessary.
For real-world thoughts, here's a studio archive image of a Viper prop:
Galactia TV
In the real world, it gets better: the '70s studio mock-up skids had wheels
Clearly these wheels assisted in moving the mock-up around the studio, where there's no controlled gravity. But the designer went for skids, presumably for aesthetic reasons. Maybe they felt wheels look too pedestrian.
The Galactica TV page about Viper Mockup also explains that in the real world, the merchandice for the Viper were released before the first broadcast of the show, and these models were designed to re-use parts from other contemporary TV and movie space ships - notably the Star Wars franchise. So the skids likely came from a toy X-Wing or other Rebel Alliance space ship.
The best image I can find of a period Viper toy showing the gear is this pinterest pin which actually has a wheel:
So I'm not sure now, maybe there were other toys with skids. The skids even on the 70s studio mockup and models only look vaguely like an X-Wing skid too.
I recently saw a video of the X-15 space-plane landing at Edwards AFB. It used skids on the rear fuselage, and a wheel in the nose.
A distinct feature of the X-15s were the main retractable landing gears, which used skids instead of wheels for simplicity and weight reduction. The skids, coupled with a non-steerable nose-landing wheel, required the aircraft to land on a dry lakebed rather than a conventional concrete runway
-- X-15 fact sheet, NASA Dryden Flight Research Center
It struck me that this could have been an inspiration for the TV show's model designers, especially since it was a space-plane, like the Viper.
Just to drop in a note... "Space shuttle uses tires" is used as a dismissive why they "won't work in space"
The tires are one time use as the temperature cycling causes embrittlement and equally it is under higher pressure than normal tires.
Also when a shuttle comes into land it is gliding in ATMOUSPHERE so there is alot of drag on landing. When a viper "lands" on the desk there would be no air friction, vipers would be coming in alot faster and I am also certain the "runway" is alot shorter. The "rubber" would not present significant friction
The easiest in-universe example I can think of is that skids are cheaper and less prone to mechanical failure than tires, and since Vipers can "soft land" if they need to (not in combat obviously), then there's no need to have complicated tire and braking systems to stop them. Either they're going to combat land (in which case who knows if tires can stand up to the force, and there's a lot of parts to break) or soft land (in which case a skid is no worse than a tire).
Now, imagine that you're on BSG, facing supply issues, constant attacks, and barely keeping your fleet of Vipers flying. Would you rather have each one have three sets of tires, brakes, etc, or three chunks of steel when it comes time to repair and replace parts? I think I know which one the Chief would pick, even if he has to bang dents out of the flight deck.
In universe the Vipers are primarily launched and return to Battlestars the landing skids allow them to land with minimal space required (on a separate note Im not sure what pressurized tires would do in space)
This is an old post but I'm surprised no one mentioned this, at least in the most liked answer. Tyres/tires would not work because space is a vacuum, thus tires would explode if filled with gas, assuming they were made of some sort of rubber (read the NASA thing about tires for shuttles, vipers are way lighter that a shuttle/rocket, they push they around by hand on jacks, so having thick rubbered 300psi tires would be pretty unlikely). And its not just combat landings, remember at the beginning of the series, episode one probably, everyone can't believe that you have to land hot with the pilot on the stick for the galactica? That would suggest that the landing skids were more likely the standard around the fleet and just happened to be funky for galactica landings.
