4 ms·
Can't speak for the F35, but for the fighter I work on we basically consider the pilot dead if you have shrapnel damage in the cockpit. For instance, the FCS is
by zppln 2y ago
Can't speak for the F35, but for the fighter I work on we basically consider the pilot dead if you have shrapnel damage in the cockpit. For instance, the FCS is located behind the pilot. That being said, I would assume the F35 display being at least dual redundant (think two displays merged together, which can be done seamlessly) for flight safety reasons.
- stavros 2y agoIf the displays are merged seamlessly, how will you know if one has failed?
- EasyMark 2y agoI assume both displays in use, but have failover to one only if a display goes “dead”and then the single display can still display the most critical information/controls to the pilot; to me that seems like the only logical implementation. Giving 1 of the 2 screens failing. It should be fairly easy to set up a redundancy failover process, I’ve done that many times in embedded coding where we failed over to a backup system.
- baby_souffle 2y agoReduction in brightness?
- stavros 2y agoI assume they're using LCDs, where the brightness is provided by the backlight.
- baby_souffle 2y ago> I assume they're using LCDs, where the brightness is provided by the backlight. Presumably that also would be duplicated. Why go to all the effort of having two displays but still have the risk of a single backlight going out and making both displays useless?
- izacus 2y agoUhh, the pilot will notice that the right half of your display is black and you have to move the displayed data to the left one?
- stavros 2y agoUhh, that's not "seamlessly blending two displays", that's just having two desplays. If you've seen photos of planes, they don't just have an empty screen next to a working one anywhere.
- izacus 2y agoAh, I misunderstood - it's not uncommon to have those "big" screens also put together from two different screens side by side.
- zppln 2y agoThis is actually what I meant by "merged together". They are two separate displays controlled by separate computers, with separate power supplies etc. During normal mode operation they're synchronized somehow and can draw a large image over the entire display area, but in emergency mode you can display crucial flight data on only one of them if the other stop working. I have never really thought much about it, but I guess the actual LCD thingie is manufactured in one piece and the control signals just being split between different computers somehow, but I don't know anything about how these things are made! :)
- kens 2y agoHere's a paper on a redundant display for military aircraft. Each LCD panel has redundant inputs, driver circuits, and power supplies. The two displays are built on a single LCD substrate, so there is no line between the two. https://www.mrcy.com/resourcehub/displays/dual-redundant-display-in-bubble-canopy-applications https://www.mrcy.com/resourcehub/displays/dual-redundant-dis... https://www.mrcy.com/legacy_assets/siteassets/product-datasheets/mission-computing-and-avionics/displays/2150-display-series-datasheet.pdf https://www.mrcy.com/legacy_assets/siteassets/product-datash...