EFTA02354335.pdf

From: Peter Attia Sent: Saturday, June 20, 2015 7:05 PM To: Jeffrey E. Subject: RE: I have a few ideas, and if wrong a few questions... Other ideas: 1. Even though you dismissed weight, I wonder if there is something about the weight that alters the optimal fuel burn ration during takeoff when thrust is highest that hinders range down line? 2. Does the pain alter the high lift devices such that takeoff and landing are less fuel efficient? Observations: 1. I've never seen a commercial jet painted black... I wonder if the problem is the color or the application/variant you used 2. Supersonic jets (no need for Bernoulli) are black all the time (though this may have more to do with anti-radar) and/or they may be willing to give up range in exchange for these 3. I was trying to do a Gedankenexperiment <http://www.merriam-webster.com/dictionary/gedankenexperiment> to simplify the problem: imagine two fast cars, identical in every way, except one is pained black. Would the same range- reduction effect be observed? If not, would it be because cars are dominated by rolling resistance and form drag, while subsonic planes are dominated by skin friction? Or would the effect be absent because the speeds are too low? Lastly, a question: When you "undid" this black paint thing, did you strip off the black paint, or did you just re-paint? If the latter, did you recoup the lost range? P EFTA_R1_01335939 EFTA02354335 From: Jeffrey E. [mailto:[email protected]] Sent: Saturday, June 20, 2015 5:34 AM To: Peter Attia Subject: figure it out yet please note The information contained in this communication is confidential, may be attorney-client privileged, may constitute inside information, and is intended only for the use of the addressee. It is the property of JEE Unauthorized use, disclosure or copying of this communication or any part thereof is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by return e-mail or by e-mail to [email protected] <mailto:[email protected]> , and destroy this communication and all copies thereof, including all attachments. copyright -all rights reserved 2 EFTA_R1_01335940 EFTA02354336