schizoidman@lemm.ee to World News@lemmy.worldEnglish · edit-23 months agoSouth Korea plane crash kills 179 with investigation into cause under waywww.bbc.comexternal-linkmessage-square22fedilinkarrow-up1207arrow-down15file-text
arrow-up1202arrow-down1external-linkSouth Korea plane crash kills 179 with investigation into cause under waywww.bbc.comschizoidman@lemm.ee to World News@lemmy.worldEnglish · edit-23 months agomessage-square22fedilinkfile-text
minus-squarehddsx@lemmy.calinkfedilinkEnglisharrow-up6arrow-down1·3 months agoI don’t think whatever electrical backup has enough power to deploy flaps at landing or near landing speeds.
minus-squarederanger@sh.itjust.workslinkfedilinkEnglisharrow-up9·edit-23 months ago737 NG alt flaps work up to 230 knots, well above landing speed. Landing with hydraulics out is the primary function of the alt flaps system. It’s really slow, however, so flaps 15 is typically the most they use.
minus-squarehddsx@lemmy.calinkfedilinkEnglisharrow-up4arrow-down1·3 months agoI didn’t find the speed rating for the alt flaps, but I was able to verify that it is an electrical system backup https://www.airliners.net/forum/viewtopic.php?t=1481455
minus-squarederanger@sh.itjust.workslinkfedilinkEnglisharrow-up3·edit-23 months agoThere’s a placard in the cockpit with flap speed limits.
minus-squarehddsx@lemmy.calinkfedilinkEnglisharrow-up1arrow-down1·3 months agoYou know what? I like the C152 better. It’s color coded around the speedometer.
minus-squareBlackrook7@lemmy.worldlinkfedilinkEnglisharrow-up3·3 months agoThat’s unfortunate if true
I don’t think whatever electrical backup has enough power to deploy flaps at landing or near landing speeds.
737 NG alt flaps work up to 230 knots, well above landing speed. Landing with hydraulics out is the primary function of the alt flaps system. It’s really slow, however, so flaps 15 is typically the most they use.
I didn’t find the speed rating for the alt flaps, but I was able to verify that it is an electrical system backup
https://www.airliners.net/forum/viewtopic.php?t=1481455
There’s a placard in the cockpit with flap speed limits.
You know what? I like the C152 better. It’s color coded around the speedometer.
That’s unfortunate if true
Looks like I’m wrong.