Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

hatrack

(59,583 posts)
Sun Jul 28, 2019, 07:06 PM Jul 2019

Jason Box: "We Appear To Be Entering A Long-Dreaded Phase Of Global Warming" - Feedback V1, IOW




V1 is the critical engine failure recognition speed or takeoff decision speed. It is the speed above which the takeoff will continue even if an engine fails or another problem occurs, such as a blown tire.[9] The speed will vary among aircraft types and varies according to factors such as aircraft weight, runway length, wing flap setting, engine thrust used and runway surface contamination, thus it must be determined by the pilot before takeoff. Aborting a takeoff after V1 is strongly discouraged because the aircraft will by definition not be able to stop before the end of the runway, thus suffering a "runway overrun".[34]

V1 is defined differently in different jurisdictions:

The US Federal Aviation Administration defines it as: "the maximum speed in the takeoff at which the pilot must take the first action (e.g., apply brakes, reduce thrust, deploy speed brakes) to stop the airplane within the accelerate-stop distance. V1 also means the minimum speed in the takeoff, following a failure of the critical engine at VEF, at which the pilot can continue the takeoff and achieve the required height above the takeoff surface within the takeoff distance."[7]
Transport Canada defines it as: "Critical engine failure recognition speed" and adds: "This definition is not restrictive. An operator may adopt any other definition outlined in the aircraft flight manual (AFM) of TC type-approved aircraft as long as such definition does not compromise operational safety of the aircraft."[8]

EDIT

https://en.wikipedia.org/wiki/V_speeds#V1_definitions
3 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Jason Box: "We Appear To Be Entering A Long-Dreaded Phase Of Global Warming" - Feedback V1, IOW (Original Post) hatrack Jul 2019 OP
It's time to #drawdown CO2 to maintain any hope of agricultural, economic and political stability. The_jackalope Jul 2019 #1
Sure was nice safeinOhio Jul 2019 #2
I hadn't checked the climatologists on twitter recently. Just did and I'm scared. femmedem Jul 2019 #3

The_jackalope

(1,660 posts)
1. It's time to #drawdown CO2 to maintain any hope of agricultural, economic and political stability.
Sun Jul 28, 2019, 07:24 PM
Jul 2019

Well, no. That time was 40 or more years ago. Agricultural, economic and political stability are gone, washed away by #extremeweather events

femmedem

(8,201 posts)
3. I hadn't checked the climatologists on twitter recently. Just did and I'm scared.
Sun Jul 28, 2019, 10:38 PM
Jul 2019

The ones I follow are beating themselves up for not sounding the alarm effectively, earlier. And they're talking about how politics watered down the IPCC report so that it was overly conservative.

For all the talk about carbon sequestration--and don't get me wrong, we should do it!--I don't see how we can plant enough trees and change our agricultural systems enough to offset the CO2 released by the fires and permafrost.

Latest Discussions»Issue Forums»Environment & Energy»Jason Box: "We Appear To...