{"id":5214,"date":"2019-05-31T14:34:18","date_gmt":"2019-05-31T21:34:18","guid":{"rendered":"http:\/\/tailwheelersjournal.mechadigital.net\/?p=5214"},"modified":"2021-08-26T20:37:51","modified_gmt":"2021-08-26T20:37:51","slug":"g-available","status":"publish","type":"post","link":"https:\/\/tailwheelersjournal.com\/g-available\/","title":{"rendered":"“G” Available"},"content":{"rendered":"

I\u2019ve got some questions:\u00a0 Howcum most CFIs think that bank angle affects stall speed?\u00a0 Howcum most pilots never fly behind an accelerometer unless they are flying an aerobatic airplane.\u00a0 And, speaking of accelerometers, howcum most who have one, use it to safely fly the aircraft at less than max g?<\/h3>\n

\"\"<\/h3>\n

The Accelerometer.\u00a0 This is a portable unit that can be put in any airplane.\u00a0 Y\u2019know what never fails to entertain the CFI when he first shows the unit to a student?\u00a0 The fact that most people try to zero the instrument by finding Zero.\u00a0 In fact, if the instrument indicated \u201czero\u201d we\u2019d be floating.\u00a0 When it is \u201czeroed\u201d, the center needle reads \u201c1\u201d.\u00a0 ( The Lansburgh Collection, Photo by Brian Lansburgh).<\/h3>\n

<\/h3>\n

Howcum most pilots don\u2019t understand what Va is?\u00a0Oh a few can actually tell you about it, but most don\u2019t understand it.\u00a0 You will.\u00a0 And while you are understanding it, you\u2019ll also learn what \u201cG Available\u201d is.\u00a0 To understand \u201cG Available\u201d, we only have to practice one of our Tailwheel Town maneuvers, the YoYo.\u00a0 You see, I\u2019ve noticed something that most of my applicants do when flying the YoYo for the first time.\u00a0 Instructed to pull 2.5 g\u2019s, they will begin to pull relatively slowly and smoothly, while watching the accelerometer.\u00a0 While they are pulling, the airspeed is going down.\u00a0 And, without realizing it, they pull hard enough that the G available drops below 2.5.\u00a0 For you see, for every airspeed there is a G available.\u00a0 The higher the airspeed, the more \u201cG\u201d s can be pulled. The applicant normally has to be told to pull harder sooner.\u00a0 The average Aeronautical Engineer knows about G Available and that has to do with the fact that the aeronautical engineer is the one who needs to calculate Va, the speed at which a sudden activation of any of the controls or entry into turbulent conditions will result in a stall at less than the maximum \u201cG\u201d that the airframe is designed to withstand.<\/h3>\n

<\/h3>\n

Gee (you should pardon the pun), howcum more airplanes don\u2019t have accelerometers?\u00a0 They require no plumbing and are the easiest thing in the world to install.\u00a0 Oh, and while I\u2019m on the subject, howcum more CFI\u2019s don\u2019t teach the \u201cYo Yo\u201d?\u00a0 I\u2019ll let you noodle on that and I\u2019ll skulk off.<\/h3>\n

<\/h3>\n

Happy Swooping!<\/h3>\n

Brian<\/h3>\n","protected":false},"excerpt":{"rendered":"

I\u2019ve got some questions:\u00a0 Howcum most CFIs think that bank angle affects stall speed?\u00a0 Howcum most pilots never fly behind an accelerometer unless they are flying an aerobatic airplane.\u00a0 And, speaking of accelerometers, howcum most who have one, use it to safely fly the aircraft at less than max g? The Accelerometer.\u00a0 This is a […]<\/p>\n","protected":false},"author":3,"featured_media":5216,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/tailwheelersjournal.com\/wp-json\/wp\/v2\/posts\/5214"}],"collection":[{"href":"https:\/\/tailwheelersjournal.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tailwheelersjournal.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tailwheelersjournal.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/tailwheelersjournal.com\/wp-json\/wp\/v2\/comments?post=5214"}],"version-history":[{"count":0,"href":"https:\/\/tailwheelersjournal.com\/wp-json\/wp\/v2\/posts\/5214\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tailwheelersjournal.com\/wp-json\/wp\/v2\/media\/5216"}],"wp:attachment":[{"href":"https:\/\/tailwheelersjournal.com\/wp-json\/wp\/v2\/media?parent=5214"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tailwheelersjournal.com\/wp-json\/wp\/v2\/categories?post=5214"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tailwheelersjournal.com\/wp-json\/wp\/v2\/tags?post=5214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}