![]() |
|
|
#1343 |
|
"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest
123638 Posts |
"if a tire has a maximum load capacity of 2,000 pounds, but normally carries only 750 pounds, doubling the load to 1,500 pounds is approaching the design limit. Here the traction may only increase by about half the extra load. If the design load is exceeded, the situation gets worse." https://nasaspeed.news/tech/wheels-t...tire-traction/
Ford Expedition tire capacity is stated as 2064 lb at https://www.thecarconnection.com/spe...xpedition_1997 Loaded weight was previously estimated as 8400 lb, so slightly beyond tire capacity at rest. Tire downforce shifts to front tires considerably during hard braking in forward motion, so the front tires were significantly overloaded when it mattered most. Brake force proportioning front/rear is designed in, based on a normal range of mass and cg location. Severe overloading by dozens of passengers rear of the front seats places greater demand upon the front brakes, than on the rear brakes where there is more than usual available downforce as a fraction of the total. Front braking effect would be reduced because useful coefficient of friction was reduced by tire overload during braking, likely leading to skidding and further reduction in coefficient. Rear braking effect would be reduced because the proportioning of force to rear brake actuation was low for the overloaded-vehicle condition, leaving the rear tires rolling without optimal slip for maximum braking effect. That's in the best case, functional brake system operating to specifications. In the case of worn out brakes, or previously sustaining damage to brake lines, such as driving through brush and over a newly removed section of old border wall, there may have been little or no hydraulic braking effect. Some accident analysis case studies and a link to an analysis software site are here. Last fiddled with by kriesel on 2021-03-05 at 17:51 |
|
|
|
|
|
#1344 |
|
"Marv"
May 2009
near the Tannhäuser Gate
10100011102 Posts |
The US air force has posted a notice asking for bids to reverse engineer some parts for the B-2 bomber. It is not exactly stated why this needs to be done for the 20 year old planes, but speculation is that Northrup destroyed the blue prints and tooling of the originals.
This is pathetic, especially considering that B-52s are still operational despite the last one having been built in 1962 ! They have gone thru numerous refits, upgrades, and replacements. I guess Boeing is able to hold onto their planes' plans better than Northrup. https://www.thedrive.com/the-war-zon...=pocket-newtab |
|
|
|
|
|
#1345 | ||
|
Feb 2017
Nowhere
4,643 Posts |
Quote:
The problem seems to be replacing "load heat exchanger cores." Many years ago, I had a car whose heat exchanger core needed to be replaced. Ouch! Rummaging around online turned up the fact that the USAF signed a maintenance contract with Northrop Grumman for the B-2 in 2015. I don't know the length of the contract. I also ran across an item about the USAF's 2021 budget request, in which it had greatly scaled back the modernization program for the B-2: Quote:
|
||
|
|
|
|
|
#1346 | |
|
Feb 2017
Nowhere
4,643 Posts |
I heard about this recently, and it sounded like a done deal. Apparently not!
Super League near collapse as the 6 English clubs withdraw Quote:
|
|
|
|
|
|
|
#1347 | |
|
"Mark"
Apr 2003
Between here and the
11×577 Posts |
Quote:
|
|
|
|
|
|
|
#1348 | ||
|
Feb 2017
Nowhere
4,643 Posts |
Quote:
It appears that the European Super League is now awaiting reincarnation. Last fiddled with by Dr Sardonicus on 2021-04-21 at 13:39 Reason: Omit unnecessary words! |
||
|
|
|
|
|
#1349 |
|
"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest
31·173 Posts |
Sheesh, you'd think a prominent organization with global reach such as the AP could afford a decent proofreader or software to perform the function.
"has a qualification criteria". Criteria are plural (multiple); criterion is singular (one). https://www.thefreedictionary.com/criteria Similar to how data are plural, and datum is singular, or radii and radius. Last fiddled with by kriesel on 2021-04-21 at 13:54 |
|
|
|
|
|
#1350 | ||
|
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
23·1,223 Posts |
Quote:
Quote:
Also, the whole sentence is more complex than you read it as. "which has a qualification criteria based on a team’s performance in the domestic league." It has a qualification schema based upon..... would not make you concerned. The whole complex of criteria is based upon .... |
||
|
|
|
|
|
#1351 |
|
Jun 2003
5,051 Posts |
And you have fallen foul of my pet peeve. While technically "data" is plural and "datum" is singular, modern usage of data is as an uncountable noun, and hence should be "data is ...". No one uses "datum," btw, except to state it as the singular of data. I have yet to see datum "being" used in a non-trivial way.
|
|
|
|
|
|
#1352 |
|
Undefined
"The unspeakable one"
Jun 2006
My evil lair
22·1,549 Posts |
Then some of you might hate the words bacteriums and bacterias.
Language changes with usage. If people use those words then the language simply reflects that. Anyhow, I've gotta get back to analysing why that data point was uncorrect. Out of all the datas, only that one are unright. Perhaps all those criterions I have are too strict. I'll have to ask my staffs about it.
|
|
|
|
|
|
#1353 | |
|
"Mark"
Apr 2003
Between here and the
11·577 Posts |
Quote:
|
|
|
|
|
![]() |
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Official "Science News" Thread | ewmayer | Science & Technology | 2913 | 2021-07-16 20:24 |
| Aouessare-El Haddouchi-Essaaidi "test": "if Mp has no factor, it is prime!" | wildrabbitt | Miscellaneous Math | 11 | 2015-03-06 08:17 |
| "Whatever makes most sense" changes from LL to DC | jinydu | Lounge | 0 | 2010-03-19 11:06 |
| Would Minimizing "iterations between results file" may reveal "is not prime" earlier? | nitai1999 | Software | 7 | 2004-08-26 18:12 |