X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 16 Jan 2013 16:43:21 -0500 Message-ID: X-Original-Return-Path: Received: from imr-ma04.mx.aol.com ([64.12.206.42] verified) by logan.com (CommuniGate Pro SMTP 6.0.1) with ESMTP id 6015792 for lml@lancaironline.net; Wed, 16 Jan 2013 16:06:18 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.206.42; envelope-from=Sky2high@aol.com Received: from mtaomg-mb01.r1000.mx.aol.com (mtaomg-mb01.r1000.mx.aol.com [172.29.41.72]) by imr-ma04.mx.aol.com (Outbound Mail Relay) with ESMTP id 448FE1C0001A4 for ; Wed, 16 Jan 2013 16:05:43 -0500 (EST) Received: from core-mtc005c.r1000.mail.aol.com (core-mtc005.r1000.mail.aol.com [172.29.235.17]) by mtaomg-mb01.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 14D3DE000098 for ; Wed, 16 Jan 2013 16:05:43 -0500 (EST) From: Sky2high@aol.com Full-name: Sky2high X-Original-Message-ID: <2f014.202c4f5a.3e287026@aol.com> X-Original-Date: Wed, 16 Jan 2013 16:05:42 -0500 (EST) Subject: Re: [LML] Re: Nasal canula, 18,000 feet, and the FARs X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_2f014.202c4f5a.3e287026_boundary" X-Mailer: AOL 9.6 sub 168 X-Originating-IP: [67.175.156.123] x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:500205856:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d294850f716276b4d --part1_2f014.202c4f5a.3e287026_boundary Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en =20 Tom, =20 Ok, you asked for regulation. It would seem that's it. I won't search for = =20 it now, but because I am well acquainted with creeping hypoxia, there is = =20 information that relates to density altitude (just like the engine), age, = =20 physical condition, etc. and the effect on O2 absorption, and where gas=20 pressure differentials start to resist the transfer of O2. Thus, in certai= n=20 environments a mask is required to force the O2 pressure high enough to ca= use the=20 transfer to occur in the lungs. =20 The FAA requirements are minimal. When the O2 saturation levels drop to =20 around 89%, an individual is impaired. Night vision is dramatically affecte= d=20 by even minimal reduction in blood O2 saturation. =20 Perhaps you should experiment by getting a pulse oximeter=20 (_http://www.aeromedixrx.com/Nonin-9590-Fingertip-Pulse-Oximeter.html_=20 (http://www.aeromedixrx.com/Nonin-9590-Fingertip-Pulse-Oximeter.html) ) an= d measure how altitude=20 affects your personal O2 levels. =20 BTW, recognition of impairment may be hindered by euphoria. =20 Scott =20 PS My 700 MSL home location gives my old fat body O2 results that vary from= =20 95% to 97%. Young healthy folks should be showing 99%-100%.=20 =20 In a message dated 1/16/2013 7:33:10 A.M. Central Standard Time, =20 tom@lachollatech.com writes: Scott, Yea, I read that of course, but sorry, I don't see it. Neither "canula"=20 nor "18,000 feet" is even in that para. The only time "mask" is mentioned = is=20 with reference to pressurized A/C flying above FL350. Don't think any=20 Lancair flies that high. Is there a reference that does apply? BTW neither "canula" nor "cannula" = =20 even appear in Parts 21, 23 or 91 except in Part 23.1447, the one mentioned= =20 before that doesn't apply to us. Tom T. =C2=A7 91.211 Supplemental oxygen. (a) General. No person may operate a civil aircraft of U.S. registry=E2= =80=94=20 (1) At cabin pressure altitudes above 12,500 feet (MSL) up to and=20 including 14,000 feet (MSL) unless the required minimum flight crew is pro= vided=20 with and uses supplemental oxygen for that part of the flight at those=20 altitudes that is of more than 30 minutes duration;=20 (2) At cabin pressure altitudes above 14,000 feet (MSL) unless the=20 required minimum flight crew is provided with and uses supplemental oxygen= during=20 the entire flight time at those altitudes; and=20 (3) At cabin pressure altitudes above 15,000 feet (MSL) unless each=20 occupant of the aircraft is provided with supplemental oxygen.=20 (b) Pressurized cabin aircraft. (1) No person may operate a civil=20 aircraft of U.S. registry with a pressurized cabin=E2=80=94=20 (i) At flight altitudes above flight level 250 unless at least a 10-minute= =20 supply of supplemental oxygen, in addition to any oxygen required to=20 satisfy paragraph (a) of this section, is available for each occupant of t= he=20 aircraft for use in the event that a descent is necessitated by loss of ca= bin =20 pressurization; and=20 (ii) At flight altitudes above flight level 350 unless one pilot at the=20 controls of the airplane is wearing and using an oxygen mask that is secur= ed=20 and sealed and that either supplies oxygen at all times or automatically= =20 supplies oxygen whenever the cabin pressure altitude of the airplane excee= ds=20 14,000 feet (MSL), except that the one pilot need not wear and use an=20 oxygen mask while at or below flight level 410 if there are two pilots at = the=20 controls and each pilot has a quick-donning type of oxygen mask that can b= e=20 placed on the face with one hand from the ready position within 5 seconds,= =20 supplying oxygen and properly secured and sealed.=20 (2) Notwithstanding paragraph (b)(1)(ii) of this section, if for any=20 reason at any time it is necessary for one pilot to leave the controls of = the=20 aircraft when operating at flight altitudes above flight level 350, the=20 remaining pilot at the controls shall put on and use an oxygen mask until = the=20 other pilot has returned to that crewmember's station.=20 =20 ____________________________________ For questions or comments regarding e-CFR editorial content, features, or = =20 design, em =3D --part1_2f014.202c4f5a.3e287026_boundary Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en
 =20
Tom,
 
Ok, you asked for regulation. It would seem that's it. I won't search = for=20 it now, but because I am well acquainted with creeping hypoxia, there is=20 information that relates to density altitude (just like the engine), age,= =20 physical condition, etc. and the effect on O2 absorption, and where gas pre= ssure=20 differentials start to resist the transfer of O2. Thus, in certain environm= ents=20 a mask is required to force the O2 pressure high enough to cause the transf= er to=20 occur in the lungs.
 
The FAA requirements are minimal. When the O2 saturation levels drop t= o=20 around 89%, an individual is impaired. Night vision is dramatically affecte= d by=20 even minimal reduction in blood O2 saturation.
 
Perhaps you should experiment by getting a pulse oximeter (http://www.aeromedixrx.com/Nonin-9590-Fingertip-Pulse-Oximeter.html)= =20 and measure how altitude affects your personal O2 levels.
 
BTW, recognition of impairment may be hindered by euphoria.
 
Scott
 
PS My 700 MSL home location gives my old fat body O2 results that vary= from=20 95% to 97%. Young healthy folks should be showing 99%-100%.
 
In a message dated 1/16/2013 7:33:10 A.M. Central Standard Time,=20 tom@lachollatech.com writes:
=
Scott,

Yea, I read that of c= ourse,=20 but sorry, I don't see it. Neither "canula" nor "18,000 feet" is even in = that=20 para. The only time "mask" is mentioned is with reference to pressurized = A/C=20 flying above FL350. Don't think any Lancair flies that high.

Is there a reference that does apply? BTW neither "canula" nor "cann= ula"=20 even appear in Parts 21, 23 or 91 except in Part 23.1447, the one mention= ed=20 before that doesn't apply to us.

Tom T.

=C2=A7 91.211 Supplem= ental=20 oxygen.

(a)=20 General. No person may operate = a civil=20 aircraft of U.S. registry=E2=80=94

(1)=20 At cabin pressure altitudes above 12,500 feet (MSL) up to and including 1= 4,000=20 feet (MSL) unless the required minimum flight crew is provided with and u= ses=20 supplemental oxygen for that part of the flight at those altitudes that i= s of=20 more than 30 minutes duration;

(2)=20 At cabin pressure altitudes above 14,000 feet (MSL) unless the required= =20 minimum flight crew is provided with and uses supplemental oxygen during = the=20 entire flight time at those altitudes; and

(3)=20 At cabin pressure altitudes above 15,000 feet (MSL) unless each occupant = of=20 the aircraft is provided with supplemental oxygen.

(b)=20 Pressurized cabin aircraft. (1)= No=20 person may operate a civil aircraft of U.S. registry with a pressurized= =20 cabin=E2=80=94

(i)=20 At flight altitudes above flight level 250 unless at least a 10-minute su= pply=20 of supplemental oxygen, in addition to any oxygen required to satisfy=20 paragraph (a) of this section, is available for each occupant of the airc= raft=20 for use in the event that a descent is necessitated by loss of cabin=20 pressurization; and

(ii)=20 At flight altitudes above flight level 350 unless one pilot at the contro= ls of=20 the airplane is wearing and using an oxygen mask that is secured and seal= ed=20 and that either supplies oxygen at all times or automatically supplies ox= ygen=20 whenever the cabin pressure altitude of the airplane exceeds 14,000 feet= =20 (MSL), except that the one pilot need not wear and use an oxygen mask whi= le at=20 or below flight level 410 if there are two pilots at the controls and eac= h=20 pilot has a quick-donning type of oxygen mask that can be placed on the f= ace=20 with one hand from the ready position within 5 seconds, supplying oxygen = and=20 properly secured and sealed.

(2)=20 Notwithstanding paragraph (b)(1)(ii) of this section, if for any reason a= t any=20 time it is necessary for one pilot to leave the controls of the aircraft = when=20 operating at flight altitudes above flight level 350, the remaining pilot= at=20 the controls shall put on and use an oxygen mask until the other pilot ha= s=20 returned to that crewmember's station.

For=20 questions or comments regarding e-CFR editorial content, features, = or=20 design,=20 em

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