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EAA21.ORG Experimental Aircraft Association Chapter 21 2021-04-20T08:40:43-06:00 http://eaa21.org/feed.php?f=5 2021-04-20T08:40:43-06:00 2021-04-20T08:40:43-06:00 http://eaa21.org/viewtopic.php?t=565&p=1054#p1054 <![CDATA[Safety • Hypoxia - "Find Your Number"]]>
A Chapter 21 member recounted an AME's suggestion from an Oshkosh aero-medical seminar on the use of oxygen and hypoxia. Yup - Find Your Number.

We're all different - age, body type, health status (both acute and chronic medical conditions), etc. So, the regulations regarding oxygen use may fit a healthy 22 year old but not everyone.

To find your number you'll need to go flying.

Take (or borrow) a pulse oximeter and climb to a cabin altitude where your oxygen saturation falls to and settles at 90%. That's your number. It may be 8,000 or 10,000 but for the majority of us it is not 12,500 ft. and above. Below 90% you are "on the bottle".

Of course, the use of oxygen at night at cabin altitudes of 5,000 and above still holds true. And the number is not static. Recovering from a respiratory illness, a general change in your health status, certain medications, smoking, seasonal allergies, etc. may require a change in your number.

So the take away message here is you may be experiencing mild hypoxia well below the altitudes in the regs. So, go find your number and remember to check it often.

Statistics: Posted by rhino — Tue Apr 20, 2021 8:40 am


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2021-04-19T06:29:53-06:00 2021-04-19T06:29:53-06:00 http://eaa21.org/viewtopic.php?t=565&p=1053#p1053 <![CDATA[Safety • Hypoxia]]>
Quick two hour flight up to Lake Erie islands for lunch taking advantage of nice weather. Cruising at 11,000 ft. settled in for an hour or so of cruise so I pulled out the flashlights, CO monitor, back up VHF radio and pulse oximeter and checked the batteries.

All was well until I tried the pulse oximeter. It read 74 (my typical on the ground here locally is 95). Right seat pilot had a reading slightly lower. Had to be wrong, right?

Take a look at this chart:

approach-to-hypoxemia-3-638.jpg

And we've all read about the recommendation to use oxygen at night above 5,000 ft.:

Hypoxia-chart-750x330.jpg

I routinely fly (without oxygen) in cruise between 9,000 - 11,000 ft. Less turbulence, traffic, higher TAS and better fuel economy. I'm rethinking that approach.

Statistics: Posted by rhino — Mon Apr 19, 2021 6:29 am


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2021-01-30T12:06:13-06:00 2021-01-30T12:06:13-06:00 http://eaa21.org/viewtopic.php?t=561&p=1049#p1049 <![CDATA[Safety • Coming soon to a windscreen and leading edge near you...]]>
The last time I experienced this phenomenon was in Cincinnati and they were so thick that cars would overheat on I-71/I-75 due to the radiator being clogged with these guys.

I've not had the pleasure of flying through a swarm of these but it stands to reason you should expect an obscured windscreen, perhaps a blocked pitot tube and an extra hour or two cleaning the leading edges of leftover cicada parts.

I understand there are a number of recipes available for the more adventurous.

A regional map is included. We'll have to ask the FAA if they mention them in the ATIS reports.

CicadaBroodStaticMap.pdf

Statistics: Posted by rhino — Sat Jan 30, 2021 12:06 pm


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2021-01-25T09:08:43-06:00 2021-01-25T09:08:43-06:00 http://eaa21.org/viewtopic.php?t=559&p=1045#p1045 <![CDATA[Safety • FAA ATC-Zero presentation from FAA Administrator]]>
The faa.gov web site regarding the ATC - Zero notice Steve mentions was updated accordingly.

https://www.youtube.com/watch?v=4QjY8bB ... e=youtu.be

Statistics: Posted by rhino — Mon Jan 25, 2021 9:08 am


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2020-12-06T14:30:42-06:00 2020-12-06T14:30:42-06:00 http://eaa21.org/viewtopic.php?t=555&p=1041#p1041 <![CDATA[Safety • Van's RV-7 Service Bulletins]]>
















Statistics: Posted by skyterrier — Sun Dec 06, 2020 2:30 pm


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2020-09-07T10:24:55-06:00 2020-09-07T10:24:55-06:00 http://eaa21.org/viewtopic.php?t=549&p=1033#p1033 <![CDATA[Safety • Ultralight activitiy observed in and around KEHR]]> NOTE: This is an operational caution to all area pilots operating near KEHR. It is not my intention to disparage or condemn the actions of another pilot or pilots.

On Saturday, September 5th, I was approaching KEHR from the east and made position calls and intentions for left down wind landing RWY 9 Henderson. On the down wind I encountered a flight of two ultralights crossing from my left to right at pattern altitude. In a PA30 I was just below gear extension speed, a little above pattern altitude and decending when I saw a glint of sunlight at my 10 o'clock. Ultralights! No calls on unicomm and almost as difficult to see as birds. But close enough to see the rigging on their aircraft and color of their jump suits.

At our closest I estimate no more than 50 feet vertical and perhaps 1/4 mile horizontal (I was down wind for landing and they, I later learned, had departed opposite runway and made right traffic, northerly, upon departure). I climbed using the energy I had and began a turn to the north as I was convinced there was a third. I saw a flight of three the Saturday prior at KEHR and was convinced I only saw two of three.

There's a lot here for everyone to learn from. No, not all aircraft have radios nor are they required. No, deviations from rules by others does not relieve you of the see and avoid requirements. Yes, remember those right of way rules and review the class D (KEHR) and Part 103 requirements. Yes, down wind is an especially busy time for single pilot ops but it should be coordinated with extra vigilance out the windows.

Let's all take something away from this unfortunate encounter. Given the parameters above and an estimated closing speed of 140 -150 miles per hour, we were at most 9 seconds away from a mid air. Enough said.

Statistics: Posted by rhino — Mon Sep 07, 2020 10:24 am


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2020-07-14T10:10:12-06:00 2020-07-14T10:10:12-06:00 http://eaa21.org/viewtopic.php?t=544&p=1025#p1025 <![CDATA[Safety • EAA Pilot Proficiency Center]]> https://www.communityaviation.com/soaw-simulation.

All the best, Radek

Radek Wyrzykowski, EAA #1187948
Manager of Flight Proficiency
Experimental Aircraft Association

920-426-6899 - Here's my scheduling link so we can avoid the back and forth of finding time to talk

See you at EAA AirVenture Oshkosh 2021— July 26 to August 1, 2021

Statistics: Posted by rhino — Tue Jul 14, 2020 10:10 am


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2020-05-24T05:57:24-06:00 2020-05-24T05:57:24-06:00 http://eaa21.org/viewtopic.php?t=540&p=1021#p1021 <![CDATA[Safety • AVEMCO Spring 2020 Newsletter]]>
Obviously these are actors and not real pilots/owners. Why not show the face of a pilot who just made a dead stick landing because one of the jugs on his $46,000 turbo-normalized engine just went walkabout?

Or the visage of the Beechcraft Baron owner who has just seen the estimate for his annual?

Finally, how about a close up shot of the countenance of the pilot who is cleaning up the back of the plane after the kids and dog barfed in the back?

Now that's flying! Enjoy the article and have a safe Memorial weekend.

NSL0037 0420 Spring 20LR.pdf

Note: Take a minute this weekend to really look at the flags about and reflect on what it means to us; to those who have gone before and those who have made the ultimate sacrifice. To these men and women we owe a debt of gratitude which can never be repaid.

From the Farmer's Almanac: In remembering the fallen, we also honor their loved ones: spouses, fathers, mothers, sons, daughters, sisters, brothers, friends. There really aren’t proper words, but we do live in gratitude each and every day for the precious gift that they have given to us.

https://www.history.com/topics/holidays ... ay-history

Statistics: Posted by rhino — Sun May 24, 2020 5:57 am


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2020-05-22T17:43:50-06:00 2020-05-22T17:43:50-06:00 http://eaa21.org/viewtopic.php?t=539&p=1020#p1020 <![CDATA[Safety • Now I know why helicopter pilots sit in the right seat...]]> https://i.imgur.com/Ci84PJb.jpg

Statistics: Posted by rhino — Fri May 22, 2020 5:43 pm


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2020-05-22T17:37:04-06:00 2020-05-22T17:37:04-06:00 http://eaa21.org/viewtopic.php?t=538&p=1019#p1019 <![CDATA[Safety • NASA Gulfstream with the QTA hush kits]]>
Yes, for a mere $800,000 USD and your GIII AOG for about 2 weeks you can be more comfortable sitting in the lavatory of your aging airplane.

http://qtaerospace.com/qta-gulfstream-s ... hush-kits/

https://external-preview.redd.it/i_iofJ ... de6226b3b7

Statistics: Posted by rhino — Fri May 22, 2020 5:37 pm


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2020-05-22T17:22:56-06:00 2020-05-22T17:22:56-06:00 http://eaa21.org/viewtopic.php?t=536&p=1017#p1017 <![CDATA[Safety • FAA Informational Letter to Pilots]]>
The FAA recognizes that there is a trend in the industry towards using computer and cell phone applications to facilitate air transportation by connecting potential passengers to aircraft owners and pilots willing to provide professional services. Some of these applications enable the provision – directly or indirectly – of both an aircraft and one or more crewmembers to customers seeking air transportation.

This letter serves as a reminder to all pilots that, as a general rule, pursuant to 14 CFR (commonly known by industry as the Federal Aviation Regulations FARs) private pilots may neither act as pilot-in-command (PIC) of an aircraft for compensation or hire nor act as a PIC of an aircraft carrying persons or property for compensation or hire. Furthermore, to engage in air transportation a pilot must hold a commercial or airline transport pilot license and must operate the flights in accordance with the requirements that apply to the specific operation conducted (e.g., Part 135). To meet the operational requirements, the pilots must be employed (as a direct employee or agent) by the certificate holder with operational control of the flight (e.g., a Part 135 certificate holder) or must herself or himself hold a certificate issued under 14 C.F.R. Part 119.

Another common pitfall to be aware of is the “sham dry lease” or the “wet lease in disguise.” This situation occurs when one or more parties act in concert to provide an aircraft and at least one crewmember to a potential passenger. One could see this, for example, when the passenger enters into two independent contracts with the party that provides the aircraft and the pilot. One could also see this when two or more parties agree to provide a bundle (e.g., when the lessor of the aircraft conditions the lease – whether directly or indirectly – to entering into a professional services agreement with a specific pilot or group of pilots. This type of scenario is further discussed in Advisory Circular (AC) 91-37B, Truth in Leasing.

Whenever you pilot an aircraft subject to a dry-lease agreement (a dry lease is an aircraft leased with no crew), you should consider the following: Is it truly a dry-lease agreement whereby the lessee, in practice and agreement, has operational control in accordance with AC 91-37B and the FARs? If not, then flights operated under this agreement may be illegal charters and you, the pilot, may be in violation of the FARs for those flight operations.

Are you as the pilot also providing the aircraft involved in the dry-lease? If so, you may be in violation of the FARs for those flight operations if you do not have the appropriate operational authority to conduct the flights (e.g., a Part 135 certificate.)

An additional caution to consider is flight-sharing. Section 61.113(c) of Title 14 of the CFR allows for private pilots to share certain expenses. Pilots may share operating expenses with passengers on a pro rata basis when those expenses involve only fuel, oil, airport expenditures, or rental fees. To properly conduct an expense sharing flight under 61.113(c), the pilot and passengers must have a common purpose and the pilot cannot hold out as offering services to the public. The “common-purpose test” anticipates that the pilot and expense-sharing passengers share a “bona fide common purpose” for their travel and the pilot has chosen the destination.

Communications with passengers for a common-purpose flight are restricted to a defined and limited audience to avoid the “holding out” element of common carriage. For example, advertising in any form (word of mouth, website, reputation, etc.) raises the question of “holding-out.” Note that, while a pilot exercising private pilot privileges may share expenses with passengers within the constraints of § 61.113(c), the pilot cannot conduct any commercial operation under Part 119 or the less stringent operating rules of Part 91 (e.g., aerial work operations, crop dusting, banner towing, ferry or training flights, or other commercial operations excluded from the certification requirements of Part 119).

For more information on sharing flight expenses, common purpose, and holding out see:

AC 61-142, Sharing Aircraft Operating Expenses in Accordance with 14 CFR 61.113(c)
AC 120-12A, Private Carriage vs. Common Carriage of Persons or Property
FlyteNow, Inc. vs. Federal Aviation Administration, 808 F.3d 882 (D.C. Cir. 2015)

Unauthorized 135 operations continue to be a problem nationwide, putting the flying public in danger, diluting safety in the national airspace system, and undercutting the business of legitimate operators. If you have questions regarding dry-lease agreements or sharing expenses, please review the FARs and ACs. Additionally, you may contact your local Flight Standards District Office for assistance or seek the advice of a qualified aviation attorney.

Statistics: Posted by rhino — Fri May 22, 2020 5:22 pm


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2020-05-20T15:32:36-06:00 2020-05-20T15:32:36-06:00 http://eaa21.org/viewtopic.php?t=535&p=1016#p1016 <![CDATA[Safety • AGING AND THE GENERAL AVIATION PILOT]]>
It was something he mentioned during our discussion about aircraft selection that piqued my interest in the subject. I wasn't offended by the suggestion, just a bit embarrassed at never having the aging issue be a metric in the choice, complexity and performance of one's new aircraft.

Suffice to say, there is a great deal of material out there. One thing they all agree upon is that it is a difficult group to study. (Doh! Attend the weekly Flying Liars Club and you'll find out how difficult a task it is.)

I did find an article that is a bit windy (double entendre intended) but it has a very good reference section in the final pages which lists the article resources and summaries. It makes for some interesting reading.

As pilots, we are ultimately responsible for the fitness to fly decision. Included are a number of practical suggestions for accommodating the effects of aging including decreased cognition and response times.

Also, the article can be viewed as a personal litmus test - how is my hearing? Have I noticed changes in my eyesight? Am I having trouble seeing at night? Am I requesting ATC to repeat things? Do I feel better flying with another pilot to lessen the workload and recognizing my limitations? Am I flying less because of something I've noticed previously while flying?

I've attached the article here but you may wish to do your own research.

1302agingpilotreport.pdf

Statistics: Posted by rhino — Wed May 20, 2020 3:32 pm


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2020-05-19T05:34:06-06:00 2020-05-19T05:34:06-06:00 http://eaa21.org/viewtopic.php?t=534&p=1015#p1015 <![CDATA[Safety • REMINDER: EAA Webinar - Understanding Hypoxia in Aviation]]> 7 p.m. CDT

Understanding Hypoxia in Aviation
Qualifies for FAA WINGS credit.

Presenter: Steve Martin

Hypoxia in aviation is widely recognized as a potential threat, but poorly understood and under-respected by most aviators as a contributor to other accidents. Aerospace physiologist Steve Martin will discuss the facts and fallacies regarding the different types of hypoxia, recognition, causal and influencing factors, and mitigation techniques necessary to avoid this pervasive issue.

Link to schedule below:

https://eaa.org/eaa/news-and-publications/eaa-webinars

Statistics: Posted by rhino — Tue May 19, 2020 5:34 am


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2020-05-17T17:23:23-06:00 2020-05-17T17:23:23-06:00 http://eaa21.org/viewtopic.php?t=533&p=1014#p1014 <![CDATA[Safety • Reporting Runway Conditions]]>
Reporting Runway Surface Conditions.pdf

And just a quick reminder about forces of hydroplaning (I loved the music):

https://www.youtube.com/watch?v=3A88r6dgI10

And now, here's what you can do with all that new knowledge:

https://www.youtube.com/watch?v=FgkKP_fDsKc

Statistics: Posted by rhino — Sun May 17, 2020 5:23 pm


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2020-05-15T16:33:36-06:00 2020-05-15T16:33:36-06:00 http://eaa21.org/viewtopic.php?t=532&p=1013#p1013 <![CDATA[Safety • Spin Training]]>
This omission and the ACS softening of stall recoveries (e.g. taking a fully developed stall into a spin) I believe does a disservice to pilots of all experience levels.

The first time the windscreen fills with green flashes spinning before your eyes can be very intimidating. The second time a bit better, next an attempted recovery, soon a "feel and memory items" coalesce and finally it comes together. Later fully developed stalls to spins in a Citabria. Maybe flying down to fly with Catherine Cavagnaro at Ace Aerobatic School?

Spins should not be feared. Full stop. Recovery is mechanical if you understand the procedures, then practice and execute. What should scare the bejeezus out of you are the situations and habits we develop that can lead to a spin, or more correctly in most of our aircraft, the stall/spin.

Steve Krog does a great job in the attached article to explain the spin and the forces acting on the airplane. But the take away message here is: a) about 80% of the spin /stall accidents occur turning downwind to base or base to final and, b) it takes 800-1,000 feet to recover from a spin if you recognize the spin instantaneously, are proficient and execute well. (Note - read the Nall report; the data is right there).

Whoa! 800 - 1,000 feet base to final to recover? I'm thinking there's a call to the next of kin somewhere in this story.

Enjoy the article.

http://inspire.eaa.org/2020/04/08/why-d ... st-pilots/

Statistics: Posted by rhino — Fri May 15, 2020 4:33 pm


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