The July 1998 issue of RC Soaring Digest described a
pattern of chordwise stripes of varying widths (6" to 1/2")
which can be used to estimate altitude.
We'll make the article available as a downloadable PDF on
the RCSD web site, hopefully tomorrow, Thursday. RCSE
subscribers and rcsoaringdi
. Does anyone have a
> reference, guide or link to information how one might go about utilizing
> these stripes as an aid? Specifically I am looking for suggested widths
> and
> placement of the stripes.
On another related note, most hunting scopes (for rifles) have graduated
lines on the cross
On a somewhat related note, I know some individuals have used a series of
variying width white stripes on the lower surface of the wing as a means of
estimating altitude. Obviously this method does not work for very high
altitudes when the aircraft is at the very limits of one's vision.
For us
Using a Timex alti watch in my Windsong it recorded 3700' AGL as the highest
attained.
Mark
Soaring Is Life!!
RCSE-List facilities provided by Model Airplane News. Send "subscribe" and
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> Regis wrote:
> A few months ago I lost site of a 3M plane in blue sky. There were about
five of us watching when it just `blinked out`. Of course I tried to
spin down but it never reappeared. A few weeks latter, another flier
recounted a similar experience on this list. That got me thinking
When I got my specs redone, I got into this discussion with my eye doc
(that happened to be an ex-flight surgeon / perception researcher at
Wright Patt) about flying RC sailplanes, and how I don't see that great
at distance.
He brought up an example about experiments with the red flag exercises
in
Take a look at the Zlog. http://www.hexpertsystems.com/zlog/index.html It
is an altitude data logger for $70.
Bill Groft
-Original Message-
From: Lighthorse [mailto:[EMAIL PROTECTED]
Sent: Sunday, August 27, 2006 10:44 AM
To: CapnCrunchie; Soaring @ airage.com
Subject: Re: [RCSE] how
The highest that I've verified was around 1850 m if I remember correctly, a
couple of years ago with a Picolario. I used to put my Casio altimeter watch
in my XC, and it had a max altitude, along with max rate of climb and summation
of altitude gained.The highest I recorded with the watch w
ack heat! (squirt guns;
Ron, Arthur & Don P-)
--
Rudy Siegel, AMA 131126 CD
Civis Aerius Sum
Subject: RE: [RCSE] how high really
Message-ID: <[EMAIL PROTECTED]>
I got dropped off at 2,000 feet with a scale ship, all white, on a dark blue
sky day... I had trouble seeing
ember of Joe's "Acme Sailplane Racing Team")
-Original Message-
From: Daryl Perkins [mailto:[EMAIL PROTECTED]
Sent: Saturday, August 26, 2006 10:29 PM
To: Soaring@airage.com
Subject: Re: [RCSE] how high really
You guys don't have to believe me... I had a tough
time
I got dropped off at 2,000 feet with a scale ship, all white, on a dark blue
sky day... I had trouble seeing it immediately. Took about 2 minutes to
(and it hurts to type this) bleed off altitude to get it where I was seeing
it again.
I've since gotten 'scrip sunglasses in a reddish brown to help
riginal Message -
From: "Daryl Perkins" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; "Randall Brust" <[EMAIL PROTECTED]>;
Sent: Saturday, August 26, 2006 6:36 PM
Subject: Re: [RCSE] how high really
When I talk about being at 8500 ft... the stabs had
long since
If money is no object and you want to keep track of your max altitudes without the need of a laptop, one can go to Paragear and get some very rugged equipment. Check eBay also for the same things. These units are tough and take a LOT of abuse - mine is constantly getting dropped and knocked around
This would probably be cool to use
Suunto e203
http://www.suuntowatches.com/Suunto-Escape.pro
--
Ken
York County Soaring
"Lighthorse" Team YCS
Silence is Golden
On 8/27/06, CapnCrunchie <[EMAIL PROTECTED]> wrote:
A good source for the Suunto altimeter watch is http://www.rei.com/outlet .
Kee
A good source for the Suunto altimeter watch is http://www.rei.com/outlet . Keep your eye out at this site because they often go on sale at the end of the seasons (summer/winter). I picked up mine for about $120 'n change... ;^) Blue skies, Doug
Do you Yahoo!? Everyone is raving ab
You guys don't have to believe me... I had a tough
time believing it myself. But one of the arts of
cross country flying is keeping the model in the
correct location in relation to the vehicle -
virtually directly overhead. The reason for this is to
maintain visual. I've seen the guys in Muncie fl
I asked permission from the CD during our last contest for orbital
re-entry...;-)
At 10:47 PM 8/26/2006, [EMAIL PROTECTED] wrote:
As far as "how high can you get?" You can get a LOT higher than anybody
would believe. It's a Zen Thing that no instrumentation will ever capture.
If you
can
EMAIL PROTECTED]>,
soaring@airage.com
Subject: Re: [RCSE] how high really
Message-ID: <[EMAIL PROTECTED]>
When I talk about being at 8500 ft... the stabs had
long since disappeared, the wings were literally
toothpicks, and were disappearing as well - the fuse
was non-existent. That
:41 AM
To: soaring@airage.com
Subject: Re: [RCSE] how high really
When using these altitude watches be sure to read the included instructions
very closely. Many of the ~$100 watches take pressure readings periodically
only once every 2 mins. (or greater) and are made primarily for hikers/skie
Hi Bill:At 8000 ft a 4 meter plane's image could fit in the area of a
1/64 diameter circle (at arms length). I am not sure a hawk could see
that. But hey, that's just geometry and optics!!!best to you and
our poor eyesight!regards,JimOn Sat, 26 Aug 2006
17:30:46 -0700 "Bill Swingle" wrote:Daryl sa
Daryl says 8500'. Several guys have said 4500-5000'. OK, fine. Might as well
be 100K to me.
Well guys we're getting older and I'm seeing the decline in eye sight
myself.
How about you folks?
Personally, I can't stand flying when I'm uncomfortable. Too stressful.
Bill Swingle
Janesville, CA
When I talk about being at 8500 ft... the stabs had
long since disappeared, the wings were literally
toothpicks, and were disappearing as well - the fuse
was non-existent. That's how Joe consistently beat the
pants off all the CC guys for all those years. The
plane was always in the optimum positio
I have been following this thread with some interest and would to contribute my
two undervalued cents.
First, SIZE does count.
Second, a number of years ago, Don Patterson and I were flying our Jerry
Mirlk's designed AstroJeff's on a perfect day for high altitude flying. High
clouds and some
JAMES EALY wrote:
The biggest problem with the cheapies is that they are not temperature
compensated, or VERY poorly so.
There are 2 types of temperature dependance with respect to electronic
altimeters.
The first is how temperature change affects the pressure sensor's ability to
convert p
Hello all:A couple of year ago we went through this debate and I (was
taken to task) learned a lot about the new $200 alitimeters. However, we are rarely fly overhead, but at some angle, which means we
are much farther away than "up"However, a soarer came on,
who had done his math (geometery)
When using these altitude watches be sure to read the included instructions very closely. Many of the ~$100 watches take pressure readings periodically only once every 2 mins. (or greater) and are made primarily for hikers/skiers. Suuto makes watches that can be set by user to take readings in inte
In a message dated 8/25/2006 8:55:17 P.M. Eastern Standard Time,
[EMAIL PROTECTED] writes:
But
if anyone out there can give us some research based information on far a
human can discern an object like a 3m sailplane I'd sure like to hear
it.
That would be good! Also, it would be per
From: Robert Samuels <[EMAIL PROTECTED]>
if anyone out there can give us some research based information on far a
human can discern an object like a 3m sailplane I'd sure like to hear it.
==
Well, it depends on lighting and contrast. For resolving front-lit objects li
This will be tough to do as Superman has long passed away Dan Robert Samuels <[EMAIL PROTECTED]> wrote: I'm now a believer. I believe that people believe what they are telling us. But these distances certainly far exceed my weak vision.I'm not an expert at anything much less how far one can s
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