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Oh, I'm fine with digital readouts, as long as there is an analog backup for when you hit that unavoidable software bug. Airplanes get this right: even on the l

Oh, I'm fine with digital readouts, as long as there is an analog backup for when you hit that unavoidable software bug. Airplanes get this right: even on the latest Airbus, you still have the basic altitude, air/vertical speed and heading instruments, in a familiar place and configuration, based on boring physical/analog principles, just in case you need them... (and, because they're mandated by FAA [14 CFR 91] and equivalent EASA rules, which probably is for a good reason as well)

kayodelycaon 4y ago
Those backup instruments are starting to be replaced with digital systems using a battery backup. And analog gyros have always needed a power source. (Doesn’t have to be electrical.) :)
phpisthebest 4y ago
Those are included on Airplanes because you need those to make a safe stop (aka Landing) you DO NOT need a speedometer or any dash display at all to safely pull a car to the side of the road and stop. Therefore they should not be mandated under safety regulation, if you have a car with a digital display and it fails you pull your car to the side of the road, put on your hazards and call for a tow to the mechanic Just like in a airplane if it has a problem you find the closest safe landing spot, put the plan down, and call for a mechanic.
- klyrs 4y ago
  Given that it's unsafe to drive too fast and "too fast" depends greatly on the specific road you're driving on and weather conditions, speedometers are safety equipment.
  - phpisthebest 4y ago
    In those cases speed dependent on driving condition is a feeling based on the experience of the driver. Speedometer does not help you there. If you do not have a feeling for the safety under which you are operating, then perhaps you should not be driving in the first place? Which I believe that is the underlying problem here, We are too lax with whom we issue driving licenses too.
    - klyrs 4y ago
      > Speedometer does not help you there. Oh but it does! A blind corner will kill drivers going by feel alone, who don't have experience on that particular stretch of road. Feel alone doesn't inform you that you're in a school zone (until catastrophically too late). Remember, the driver isn't just a hazard to themselves, they're a hazard to everybody in their path. How do you propose to limit licensing to experienced drivers in such a way that inexperienced drivers are capable of gaining the experience necessary to drive?
      - phpisthebest 4y ago
        >> A blind corner will kill drivers going by feel alone, who don't have experience on that particular stretch of road. What exactly does not have to do with a speedometer? that is about road signs. Knowing exactly what speed you are going has no bearing on your ability to navigate a blind corner. I am very confused by this statement Based on visual cues alone you should know with in 10MPH how fast you are going anyway, if you can not tell how fast you are traveling generally with out looking at the speedometer you should not be driving >How do you propose to limit licensing to experienced drivers in such a way that inexperienced drivers are capable of gaining the experience necessary to drive? Well it seems to be popular in this thread to make flying a plan an analog for driving so how about simulators like they do for pilots, longer training, more time having to drive with an experienced driver. There are lots of things that could be done
        klyrs 4y ago
        > What exactly does not have to do with a speedometer? that is about road signs. How do you know your speed without a speedometer? Your insistence that driving is just like flying and that cars only need to stop is a bit ludicrous. Your endurance on this thread alone is impressive. That's not a good thing, but thanks for all the chuckles.
- nmeagent 4y ago
  > you DO NOT need a speedometer or any dash display at all to safely pull a car to the side of the road and stop. You do if there isn't a good place to stop and you need (or would rather) keep driving for awhile first, say in the middle of an obnoxious construction zone with no shoulder, or on a mountain pass with no shoulder, or in a sketchy area in the middle of the night (summoning a tow truck can literally take hours depending on where you are), etc.
  - b112 4y ago
    Yes but by that logic, we should mandate dual tires on all rims, just becuase we can. You're perfectly find driving without a speedometer, till out of the construction zone. I had a car with a busted one for a decade, and you know what I did? I drove with the flow of traffic. Really, a dash display is not a safety feature.
  - phpisthebest 4y ago
    Then you can slow to a reasonable safe speed and proceed on visual cues alone Still do not need a speedometer, you should be able to judge you speed with in 5-10mph by visual alone, if you can not you probably should not be driving in the first place.
lrem 4y ago
But there are no analog backups in cars. Engines also operate on software. Not sure to what extent, but I wouldn’t be surprised to learn that steering wheels and brakes too. I know that sounds a bit scary, but somewhat doubt modern traction control is all analog.
- sidewndr46 4y ago
  Depends on the vehicle, but most vehicles still have directly coupled hydraulic brakes. However, they are boosted (by engine vacuum or some other means). I can still apply the brakes without the boost, but it takes stratospheric amounts of force. Nearly my entire body weight.

kayodelycaon 4y ago

Those backup instruments are starting to be replaced with digital systems using a battery backup. And analog gyros have always needed a power source. (Doesn’t have to be electrical.) :)

phpisthebest 4y ago

Those are included on Airplanes because you need those to make a safe stop (aka Landing) you DO NOT need a speedometer or any dash display at all to safely pull a car to the side of the road and stop. Therefore they should not be mandated under safety regulation, if you have a car with a digital display and it fails you pull your car to the side of the road, put on your hazards and call for a tow to the mechanic Just like in a airplane if it has a problem you find the closest safe landing spot, put the plan down, and call for a mechanic.

klyrs 4y ago
Given that it's unsafe to drive too fast and "too fast" depends greatly on the specific road you're driving on and weather conditions, speedometers are safety equipment.
- phpisthebest 4y ago
  In those cases speed dependent on driving condition is a feeling based on the experience of the driver. Speedometer does not help you there. If you do not have a feeling for the safety under which you are operating, then perhaps you should not be driving in the first place? Which I believe that is the underlying problem here, We are too lax with whom we issue driving licenses too.
  - klyrs 4y ago
    > Speedometer does not help you there. Oh but it does! A blind corner will kill drivers going by feel alone, who don't have experience on that particular stretch of road. Feel alone doesn't inform you that you're in a school zone (until catastrophically too late). Remember, the driver isn't just a hazard to themselves, they're a hazard to everybody in their path. How do you propose to limit licensing to experienced drivers in such a way that inexperienced drivers are capable of gaining the experience necessary to drive?
    - phpisthebest 4y ago
      >> A blind corner will kill drivers going by feel alone, who don't have experience on that particular stretch of road. What exactly does not have to do with a speedometer? that is about road signs. Knowing exactly what speed you are going has no bearing on your ability to navigate a blind corner. I am very confused by this statement Based on visual cues alone you should know with in 10MPH how fast you are going anyway, if you can not tell how fast you are traveling generally with out looking at the speedometer you should not be driving >How do you propose to limit licensing to experienced drivers in such a way that inexperienced drivers are capable of gaining the experience necessary to drive? Well it seems to be popular in this thread to make flying a plan an analog for driving so how about simulators like they do for pilots, longer training, more time having to drive with an experienced driver. There are lots of things that could be done
      - klyrs 4y ago
        > What exactly does not have to do with a speedometer? that is about road signs. How do you know your speed without a speedometer? Your insistence that driving is just like flying and that cars only need to stop is a bit ludicrous. Your endurance on this thread alone is impressive. That's not a good thing, but thanks for all the chuckles.
nmeagent 4y ago
> you DO NOT need a speedometer or any dash display at all to safely pull a car to the side of the road and stop. You do if there isn't a good place to stop and you need (or would rather) keep driving for awhile first, say in the middle of an obnoxious construction zone with no shoulder, or on a mountain pass with no shoulder, or in a sketchy area in the middle of the night (summoning a tow truck can literally take hours depending on where you are), etc.
- b112 4y ago
  Yes but by that logic, we should mandate dual tires on all rims, just becuase we can. You're perfectly find driving without a speedometer, till out of the construction zone. I had a car with a busted one for a decade, and you know what I did? I drove with the flow of traffic. Really, a dash display is not a safety feature.
- phpisthebest 4y ago
  Then you can slow to a reasonable safe speed and proceed on visual cues alone Still do not need a speedometer, you should be able to judge you speed with in 5-10mph by visual alone, if you can not you probably should not be driving in the first place.

lrem 4y ago

But there are no analog backups in cars. Engines also operate on software. Not sure to what extent, but I wouldn’t be surprised to learn that steering wheels and brakes too. I know that sounds a bit scary, but somewhat doubt modern traction control is all analog.

sidewndr46 4y ago
Depends on the vehicle, but most vehicles still have directly coupled hydraulic brakes. However, they are boosted (by engine vacuum or some other means). I can still apply the brakes without the boost, but it takes stratospheric amounts of force. Nearly my entire body weight.