BBS: TELESC.NET.BR Assunto: Conveyer belt question De: Vincent Coen Data: Thu, 26 Feb 2026 17:39:00 +0000 ----------------------------------------------------------- Hello Rug! 26 Feb 26 05:46, you wrote to me: The oppoint is that as the a/c is NOT moving due to the belt working in the opposite direction - therefore the a/c is stationery compared to air flow and therefore airflow over wings is zero - so not going anywhere - well until there is a differential in which case - one broken a/c. You are going to have to explain your logic in a stronger detail as so far my logic still looks like holding. BUT I could be wrong :) > Don't fall for the familiarization bias trap.. > You are mentally comparing an aircraft with a car or bicycle when you > are assuming the belt and wheels will cancel each other out and stay > in a fixed location. > This is try in land based modes of transportation because a car is > propelled "thrust" by energy produced by the engine begeing transfered > to the wheels, wheels spin, and friction between the wheels creating a > force in the opposite direction of travel. So force applied to > treadmill in same direction and speed of treadmill cancel each other > out, so there is no force (Or thrust). > Now. Switch to the aircraft. > An aircraft, wheather propeller or jet, eneregry is created by the > engines and transfered to the air around it, (We will use jet because > it is easier to imagine the force). Jet sucks in air, blowing it out > the back. Pushing on the outside air, in the opposite direction of > travel. The wheels have NOTHING (Except for a minor friction value > (and wheel bearing friction / heat) to do with it's motive force. > NOTHING, they free spin. You apply throttle, the jet pushes on the > air around the aircraft, propelling it forward. Wheels free spin, > they have no part of the equation. Aircraft moves forward, creating > apparent wind over the wings, creating lift. Aircraft takes off. > Human factors at its best.... > Rug Rat (Brent Hendricks) > Blog and Forums - www.catracing.org > IMAGE BBS! 3.0 - bbs.catracing.org 6400 > C-Net Amiga BBS - bbs.catracing.org 6840 Vincent --- Mageia Linux v9 X64/Mbse v1.1.7/GoldED+/LNX 1.1.5-b20240604 * Origin: Air Applewood, The Linux Gateway to the UK & Eire (2:250/1) ----------------------------------------------------------- [Voltar]