|
-
POSTING RULES
-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|
02-04-2017, 05:32 AM
|
 |
|
|
Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,840
|
|
C-PAP machine transporting...be careful
On our trip to the Bahamas on Monday, my Dynon 100 was waaaaay off on the heading info..like 30 degrees and this has never happened before. The four of us had a laptop, cell phones and couldn't figure out what the magnetic interference was, until my buddy said, "I have my C-PAP machine in my suitcase."
I asked what it looked like and he said that it has a motor and a pump. Well, motors have magnets and that was what we decided the problem was. After we unloaded, the Dynon was spot on again, so, for the return trip, we moved the bag to the top of the luggage stack but the Dynon was still 20 degrees off. The course track on the HSI was correct but the whole thing was tilted at a 20 degree angle, so we lived with it since the Vizion autopilot was tracking correctly.
We decided that next time, we would unpack the C-PAP machine and put it between his feet, since I don't know the location of the magnetometer sending unit.
Just be aware of the effects of C-PAPs.
Best,
__________________
Pierre Smith
RV-10, 510 TT
RV6A (Sojourner) 180 HP, Catto 3 Bl (502Hrs), gone...and already missed
Air Tractor AT 502B PT 6-15 Sold
Air Tractor 402 PT-6-20 Sold
EAA Flight Advisor/CFI/Tech Counselor
Louisville, Ga
It's never skill or craftsmanship that completes airplanes, it's the will to do so,
Patrick Kenny, EAA 275132
Dues gladly paid!
Last edited by pierre smith : 02-04-2017 at 07:39 AM.
|
02-04-2017, 07:12 AM
|
|
|
|
Join Date: Aug 2010
Location: Wichita, KS
Posts: 1,957
|
|
Just think, maybe all this time the Bermuda Triangle disappearances and anomalies were all due to CPAP machines!
__________________
Kurt W.
RV9A
FLYING!!!
|
02-04-2017, 07:53 AM
|
 |
|
|
Join Date: Jan 2005
Location: Charlottesville, Virginia
Posts: 1,227
|
|
Good Info
Quote:
Originally Posted by pierre smith
We decided that next time, we would unpack the C-PAP machine and put it between his feet, since I don't know the location of the magnetometer sending unit.
|
Pierre,
Great Tip....as I travel with my C-PAP in the baggage area of my -6.
My Dynon remote magnetometer is located in the wingtip.
Let us know how this works out for you.
I know you are a smart guy!!
__________________
Bob Martin
RV-6, 0-360 Hartzell C/S, Tip up, 1200+TT
James extended cowl/plenum, induction, -8VS and Rudder. TSFlightline hoses. Oregon Aero leather seats.
D100-KMD150-660-TT ADI2- AS air/oil seperator. Vetterman exhaust with turndown tips.
Louisa, Virginia KLKU N94TB
|
02-04-2017, 08:03 AM
|
 |
|
|
Join Date: Oct 2010
Location: La Feria Texas
Posts: 3,822
|
|
Most interesting to me, since I ALWAYS have to travel with my CPAP. I am going to assume that putting it down by our feet in the RV12 will put it far enough away to make everything happy.
|
02-04-2017, 08:14 AM
|
|
|
|
Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,840
|
|
Baggage area
Bob, my magnetometer is behind the baggage area. When we tried moving the baggage higher, it got worse with a 40 degree error, so my magnetometer must be mounted up high. As soon as we unloaded it was perfect on heading.
The Vizion performed flawlessly any way, but the whole HSI was tilted 40 degrees.
Best,
__________________
Pierre Smith
RV-10, 510 TT
RV6A (Sojourner) 180 HP, Catto 3 Bl (502Hrs), gone...and already missed
Air Tractor AT 502B PT 6-15 Sold
Air Tractor 402 PT-6-20 Sold
EAA Flight Advisor/CFI/Tech Counselor
Louisville, Ga
It's never skill or craftsmanship that completes airplanes, it's the will to do so,
Patrick Kenny, EAA 275132
Dues gladly paid!
|
02-04-2017, 08:47 AM
|
|
|
|
Join Date: Dec 2007
Location: Brentwood, CA
Posts: 658
|
|
Thanks for telling the story about this. It certainly reinforces the sensitivity of magnetometers.
I was exchanging emails with Garmin support when trying to find a better location for the GMU22 installation on my RV-12; he joked that somewhere about 30' behind the airplane would work. Although that was humor, it drove me to put my GMU far out in the right wing. (...where God intended it...  )
__________________
Ron Gawer
- RV10, Build in progress.
- RV12, N975G, "The Commuter"...many great hours and happy landings so far.
- Several others that are now just great memories for me.
|
02-04-2017, 10:28 AM
|
|
|
|
Join Date: Apr 2010
Location: Ridgeland, SC
Posts: 2,584
|
|
Gosh Pierre--
you had to do some of the pilot stuff! 
Very good points for everyone to think about.
BTW--tell James hey!
Tom
__________________
Tom Swearengen, TS Flightlines LLC, AS Flightlines
Joint Venture with Aircraft Specialty
Teflon Hose Assemblies for Experimentals
Proud Vendor for RV1, Donator to VAF
RV7 Tail Kit Completed, Fuse started-Pay as I go Plan
Ridgeland, SC
www.tsflightlines.com, www.asflightlines.com
|
02-04-2017, 04:49 PM
|
 |
|
|
Join Date: May 2005
Location: Savannah, GA
Posts: 1,301
|
|
Glad I had a UPPP (surgery) back when you could get it. The recovery was two weeks of pure ****, but...
__________________
RV-9A at KSAV (Savannah, GA; dual G3X Touch with autopilot, GTN650, GTX330ES, GDL52 ADSB-In)
Previously RV-4, RV-8, RV-8A, AirCam, Cessna 175
ATP CFII PhD, so I have no excuses when I screw up
2020 dues slightly overpaid
Retired - "They used to pay me to be good, now I'm good for nothing."
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 12:13 AM.
|
Linear Mode
