X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail111c7.megamailservers.com ([69.49.98.211] verified) by logan.com (CommuniGate Pro SMTP 6.0c2) with ESMTPS id 5812538 for flyrotary@lancaironline.net; Mon, 15 Oct 2012 13:23:46 -0400 Received-SPF: none receiver=logan.com; client-ip=69.49.98.211; envelope-from=hjjohnson@sasktel.net X-Authenticated-User: hjjohnson.sasktel.net Received: from [192.168.0.132] (static184-169-52-50.wb.rev.accesscomm.ca [184.169.52.50]) (authenticated bits=0) by mail111c7.megamailservers.com (8.13.6/8.13.1) with ESMTP id q9FHMduX020938 for ; Mon, 15 Oct 2012 13:22:42 -0400 Subject: Re: [FlyRotary] Re: skydivers-supersonic-24-mile-jump References: From: Jarrett Johnson Content-Type: multipart/alternative; boundary=Apple-Mail-9067D5F6-8A4A-481E-8BFF-4B63C79E4EE1 X-Mailer: iPhone Mail (10A403) In-Reply-To: Message-Id: <82968A92-EEB3-4AC9-91E6-4829958419FB@sasktel.net> Date: Mon, 15 Oct 2012 11:22:27 -0600 To: Rotary motors in aircraft Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) X-CTCH-Spam: Unknown X-CTCH-RefID: str=0001.0A020206.507C467F.0197,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0 --Apple-Mail-9067D5F6-8A4A-481E-8BFF-4B63C79E4EE1 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Some of that temp rise will be aerodynamic heating. I know at 280knts and 24= ,000ft I'm seeing 10-15decC rise in temp... At 800+mph the temp rise would b= e a lot higher, even at 70K+ ft. The SR-71 lived up in those higher altitudes so while 85% of the earths atmo= sphere is below that level there is still enough air to burn and therefore c= ause aerodynamic heating.=20 I wonder what the shock waves off his body looked like? Felt like? Crazy stuff!! Jarrett Johnson =20 Sent from my iPhone On 2012-10-15, at 6:19 AM, Thomas Mann wrote: > I hear that! As an ex-jumper myself that still brought the hair up on the b= ack of my neck. > I found it amazing that the temp actually was rising once he passed 70K. > =20 > Very gutsy endeavor indeed. Too bad he didn't hold off a little longer and= get the time in freefall record as well. He could have tacked on another 20= -30 seconds based on his opening altitude ......... but seconds last a long t= ime in freefall. > =20 > This should make for a great special on the Discovery Channel. > =20 > I remember the last guy that tried it (on a shoestring budget) back in 196= 5. He died on his third attempt. > =20 > T Mann > =20 >=20 --Apple-Mail-9067D5F6-8A4A-481E-8BFF-4B63C79E4EE1 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Some of that temp rise will be aerodyn= amic heating. I know at 280knts and 24,000ft I'm seeing 10-15decC rise in te= mp... At 800+mph the temp rise would be a lot higher, even at 70K+ ft.
=

The SR-71 lived up in those higher altitudes so while 85= % of the earths atmosphere is below that level there is still enough air to b= urn and therefore cause aerodynamic heating. 

= I wonder what the shock waves off his body looked like? Felt like?

Crazy stuff!!

Jarrett Johnson  = ;

Sent from my iPhone

On 2012-10-15, at 6:19 AM, Thomas= Mann <thomasmann51@gmail.com> wrote:

= --Apple-Mail-9067D5F6-8A4A-481E-8BFF-4B63C79E4EE1--