Today's Message Index:
----------------------
1. 03:12 PM - Re: Who Frequents Sedona, AZ? ()
2. 04:52 PM - Jefferson City, Missouri FLY-IN (David Schaefer)
3. 06:26 PM - poor radio xmit quality - SOLVED! (Grenwis@aol.com)
4. 10:36 PM - Problems Spraying Primer (AFS)... suggestions please. (Brad Oliver)
5. 11:17 PM - Re: Problems Spraying Primer (AFS)... suggestions please. (Mark A. Sedlacek)
Message 1
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| Subject: | Re: Who Frequents Sedona, AZ? |
--> RV-List message posted by: <gmcjetpilot@yahoo.com>
Fair enough Paul, good points and understand what you are saying now.
Here are a few cool sites for the Sedona AZ, airport:
http://airport.sedona.net/home_index.html
http://airport.sedona.net/layout_index.html
http://airport.sedona.net/noise_index.html
http://airport.sedona.net/parking_index.html
http://www.airnav.com/airport/KSEZ
http://www.airnav.com/airport/KSEZ/RED_ROCK
One point about botched landings is really in part due to the density altitude
than the MESA.
Remember your INDICATED approach speed at 5,000 feet will be the same as it is
at sea level, BUT your GROUND SPEED at touch down will be HIGHER because your
true airspeed is higher (by almost 10% at 5,000 feet). So if you are used to the
visual clues of a sea level landings, expect to FEEL like you are landing at
a higher speed, by as much as 5-6 mph, because you are. Your *indicated* speed
at touch-down is the same, but your ground speed is higher. Don't try to hold
it off for a squeaker or you might drop it in. This is not special to Sedona's
topography, just density altitude.
Not withstanding runway slope or poor aircraft performance, landing 03 and takeoff
21 is preferred due to the 1% grade for no wind condition. Good point about
the slope. Since prevailing winds are southerly, favoring rwy 21 anyway, expect
departing traffic off of runway 21 most of the time. Expect to land runway
03 unless there is wind or a lot of traffic.
Taking off in one direction and landing in another is ripe for problems, especially
when the airport is busy. Listen to CTAF / UNICOM, look out and do as the
Romans do. Not different than what we always do. As far as "local tribal knowledge"
and habit patterns of local pilots can differ from what a transient pilot
expect, so watch out.
A far as "fast and high", two words AIM POINT and GO AROUND. I understand there
are many transient pilots at gross weight and may be less than stellar skills
in high/hot operations, but to me this really is not an excuse. The airport is
not to blame, but it is a high altitude airport.
As you point out your student pilots have problems, but that is because they are
not proficient with using the aim point (interpret) and ability to control the
aircraft fully (pitch to aim point, power to adjust speed). This will give
a stabilize approach on a fixed glide path. A stabilize approach is the key to
a good landing. An un-stabilized approach is a recipe for a bad /hard landing.
All airlines require a stabilized approach by at least 500 feet in VFR conditions.
That means no major changes in power, pitch, track, aircraft configuration
or glide path. The VASI makes the job even easier. My guess is if your students
hare having problems at Sedona they are not making consistent approaches
and landings in the low lands.
Fear of the edge of the MESA is physiological I guess. The runway is set back from
the edge so it is not a big deal, but it apparently affects approaches as
you pointed out Paul. I would advise look at and focus on the VASI and or runway
touchdown aim point (moving up or down in windscreen) and ignore the Mesa and
surrounding terrain on final.
I agree that night flying has more risk than day, in any part of the country, not
just AZ, especially in single engine aircraft. Again night ops are at KSEZ
are OK if you have situational awareness of the surrounding terrain, which there
is plenty of , but an RV climbing out off of rwy 21, straight out will have
no problem getting above the surrounding terrain in 2-3 minutes.
There is an GPS IAP to runway you could use as ref for arrival at night:
http://204.108.4.16/d-tpp/0505/06169G3.PDF
Expect to have very little ground reference on dark moonless nights over the sparsely
populated areas (read IFR attitude instruments and ability). Of course
as you point out some pilots have problems landing at SEZ even during the day.
No doubt this is the case, but the airport is not to blame. Enjoy your trip and
recommend the fancy Mexican restaurant.
Cheers George
Message 2
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| Subject: | Jefferson City, Missouri FLY-IN |
--> RV-List message posted by: "David Schaefer" <dschaefer1@kc.rr.com>
The annual Jefferson City EAA Fly-in is this coming weekend 06/25/05. Hope
to see a gaggle of RV's there even with this short notice!
Thanks.
David Schaefer
RV-6A N142DS
Message 3
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| Subject: | poor radio xmit quality - SOLVED! |
--> RV-List message posted by: Grenwis@aol.com
I wrote before to ask for help on high radio noise on my transmissions. I
solved it with help from the aero-electric archives. It was as simple as
turning down the mic gain.
My Icom A200 radio was bothering me with strong feedback at high rpm but
everything sounded great at idle or pattern rpm. I decreased the mic gain by
turning down the potentiometer within the A200 to about half of the factory
setting. Now everything is great. The feedback for me is at a good level and
the
quality of my received transmissions is high.
Rick Grenwis
N613G - RV6AQB - 61 hours
Colorado Springs, CO
Message 4
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| Subject: | Problems Spraying Primer (AFS)... suggestions please. |
--> RV-List message posted by: "Brad Oliver" <brad@rv7factory.com>
Since starting my empennage about a few weeks ago, I set out today to do my
first batch of priming. Unfortunately the results were less than stellar...
I am using the AFS Water-based 1-Part Primer/Sealer, sprayed by a Harbor
Freight HVLP Detail Gun. My process was a simple one used by several other
builders... wipe down parts with lacquer thinner, wash with dawn, clean/etch
with AFS etcher/cleaner, wash parts with clean water, dry, then spray the
primer. What I ended up with was a combination of orange peel, fish eyes,
and splattered primer. Caused by... I don't know... me, my process, my
equipment, or a combination???
My understanding is that the fish eyes are caused by surface contamination.
I scrubbed the parts with a soapy scotchbrite, rinsed them, then cleaned
with AFS Cleaner/Etch, rinsed again, dried them using air, and sprayed the
primer only minutes after etching. I am baffled because I never touched the
parts with my bare hands and the rinse water always sheeted... the parts
*appeared* to be clean, obviously they were not. Any suggestions on how to
avoid the fish eyes or improve my process? Would wiping the parts with a
tack rag prior to spraying the primer be advisable? Could the fish eyes
have been caused my contaminants in the air supply or spray gun?
What I am less clear on is the orange peel and splattered primer (almost
like texture). I sprayed outside on a sunny day with temps in the high 70s
(maybe a little higher). Could the outside temp or the temp of the parts
have anything to do with the orange peel or splattered primer?
Any idea what is going wrong and what I can do to resolve these issues?
On a side note, I am not impressed with the Harbor Freight HVLP gun... it
seems to either spray little to no primer or too much primer, but never in
between. The primer getting lower in the cup seems to create a vacuum above
the primer which prevents primer from feeding into the gun, then upon
releasing the vacuum by opening the lid on the cup the gun sprays
excessively until it eventually builds up a vacuum again and stops
altogether.
Thanks,
Brad Oliver
RV-7 Livermore, CA
PS - Those self-etching rattle can primers are sounding better every minute.
;-)
Message 5
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| Subject: | Problems Spraying Primer (AFS)... suggestions please. |
--> RV-List message posted by: "Mark A. Sedlacek" <Mark@sedlaceks.com>
Hi Brad, I've been using the AFS primer for some time now and have had pretty good
luck with it. It appears your prep is sound. I'd look to oil and or water
in your compressed air line as the source of your "fish eyes" and the aluminum
was hot from spraying outside in the sun as the source of the orange peel.
Best of luck.
Mark Sedlacek
RV-8a
San Jose
________________________________
From: owner-rv-list-server@matronics.com on behalf of Brad Oliver
Subject: RV-List: Problems Spraying Primer (AFS)... suggestions please.
--> RV-List message posted by: "Brad Oliver" <brad@rv7factory.com>
Since starting my empennage about a few weeks ago, I set out today to do my
first batch of priming. Unfortunately the results were less than stellar...
I am using the AFS Water-based 1-Part Primer/Sealer, sprayed by a Harbor
Freight HVLP Detail Gun. My process was a simple one used by several other
builders... wipe down parts with lacquer thinner, wash with dawn, clean/etch
with AFS etcher/cleaner, wash parts with clean water, dry, then spray the
primer. What I ended up with was a combination of orange peel, fish eyes,
and splattered primer. Caused by... I don't know... me, my process, my
equipment, or a combination???
My understanding is that the fish eyes are caused by surface contamination.
I scrubbed the parts with a soapy scotchbrite, rinsed them, then cleaned
with AFS Cleaner/Etch, rinsed again, dried them using air, and sprayed the
primer only minutes after etching. I am baffled because I never touched the
parts with my bare hands and the rinse water always sheeted... the parts
*appeared* to be clean, obviously they were not. Any suggestions on how to
avoid the fish eyes or improve my process? Would wiping the parts with a
tack rag prior to spraying the primer be advisable? Could the fish eyes
have been caused my contaminants in the air supply or spray gun?
What I am less clear on is the orange peel and splattered primer (almost
like texture). I sprayed outside on a sunny day with temps in the high 70s
(maybe a little higher). Could the outside temp or the temp of the parts
have anything to do with the orange peel or splattered primer?
Any idea what is going wrong and what I can do to resolve these issues?
On a side note, I am not impressed with the Harbor Freight HVLP gun... it
seems to either spray little to no primer or too much primer, but never in
between. The primer getting lower in the cup seems to create a vacuum above
the primer which prevents primer from feeding into the gun, then upon
releasing the vacuum by opening the lid on the cup the gun sprays
excessively until it eventually builds up a vacuum again and stops
altogether.
Thanks,
Brad Oliver
RV-7 Livermore, CA
PS - Those self-etching rattle can primers are sounding better every minute.
;-)
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