Re: [RCSE] Report on Nats XC and a brief visit with F3-B

2004-07-30 Thread johnders
Wow wow, wow... is all I can say. Having participated as
part of team Schow, and my first time attempting XC, first
time flying from the back seat of a car, and the first time
I knowingly and willingly chose to land my 5 meter Ka6e in a
soybean field, all I can say it was addicting!
I towed some, spotted for team Jr as Pete Goldsmith did over
9 miles and 6 (I think) laps around the closed course with
his 7 meter Nimbus 2. This ship cooked around the closed
course so fast Pete had to add camber so we could keep up
with it. The large modern scale ships can really move.
I attempted the traditional XC course early in the day
before it was known by all that we could fly the inner
circuit. On my second attempt the very thick airfoiled K6
was clocked at a blistering 6 mph ground speed in the windy
conditions. What a hoot! At little over 800 feet I chose to
go for it and left the safety of the AMA site. The K6 is
well worn so it was no great risk to take it to the fields.
It flys and lands very slowly and while a great thermal
ship, won't penetrate worth beans in any wind. Who cares,
this was a blast. I made all of one mile before descending
into 3 feet of cushy green soybeans.
I also had a 5.4 meter Puchacz aerobatic ship along, and
while not nearly optimized for XC work i did get a flight or
two in. I planned on doing the inner circle with it on
sunday, but alas, the weather said no way.
I want to add more comments but I want to make this message
not too long. (too late)
Thanks to Jack Strothers, Dennis Adamison, Dave Corvin,
teamates skip, antonio,tom,and tom, and and all the LSF and
AMA folks who made this happen. There were scale ships in
larger numbers than previous years, and they were flying,
not sitting on the ground waiting for static judging. There
are a lot of possibilities with this format. Using a closed
course, however it developes, is the way to go to attract
more scale involvement. There are safe land outs all around
the course, ample opportunity to fly as much as you want,
and an exhilerating spirit of flying for a purpose instead
of simply standing in one spot.
This was a great start to a future where large  scale ships
can come to the NATS, fly a lot, compete, and not risk
landing out in risky terrain.

I will put responses and more comments on my web site when I
get home. At Dennis Adamison's suggestion, I will put up a
page on my site to collect ideas on how to develope this for
the next time two years hence.

John Derstine,
on the way back home...


 I spent the weekend at Muncie trying to help out Skip
 Schow's XC team.The team didn't have a name, so my
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[RCSE] Scale Soaring Medal Results page

2004-04-30 Thread johnders
I just published a page in Excel providing the results for
the Scale Soaring Gold Medal Program. So far I have results
for Visalia Scale Meet, I will be adding Los Banos and the
Muncie Aerotow as soon as I get them.
I have made catagories for type of sailplane flown, I don't
expect to have this information provided by default. If you
flew in any of these events, medaled, and would like the
type of scale sailplane you flew and its size listed, email
me. I may add some interactive features and macros later as
time permits.
In theory one could sort records by event, pilot, or any
other parameter. These are not functional at this time.

John Derstine



http://www.scalesoaring.com

Results link here:

http://www.scalesoaring.net/goldmedalscalesoaring.htm
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Re: [RCSE] How to Buy THE BEST vehicle

2004-03-03 Thread johnders

Jim:

There are other fetish drivers out there also. I, for
example, have been driving full size Chevy vans for nearly
20 years to haul kids and now exclusively big a-- model
planes. In that span of time I have owned two Chevy Beauvile
G-10 vans. these are great cavernous beasts with over 11' of
clear lenght inside. I built wing racks suspended from the
ceiling which allows almost 12' clear for 1/2 scale glider
wings. This van will haul, if needed, an incredible amount
of gear. for example; eight 1/3 scale sailplannes plus two
1/3 scale towplanes, plus asorted smaller planes tucked
around the corners.
The present vehicle is a 1991 with only 169,000 miles on it.
The last one went 250k. The bodies tend to last and since
hey are a frame and coach build seem to be more servicable.
I do get jibed about these older beater vans, but for me
they fit the bill perfectly, and have all the ammenities one
could ask for, air, cruise and captains chair seats for long
cruises. I can cruise effortlessly nonstop to Florida from
PA at 75 mph no sweat. speed limit dependent :-}

Mileage? well you have to sacrifice somethings...


John D


 Guys:

 I just could not stay out of this one any longer. There is
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Re: Re: [RCSE] Dual battery packs

2001-11-30 Thread johnders


I would respectfully disagree with the policy of using two packs and two
switches. I feel that it gives little redundancy in the case of a shorted
battery, in this case you will see a rapid drain of juice from the good
battery. I know this practice hase become popular in the giant scale power
crowd, and if you are willing to replace batteies often, and or monitor
their discharge curves on a regular basis, this is a viable solution. 
One, in my experience, fool proof backer is the EMS (Electronic Model
Systems, formerly JOMAR) 
battery backer. It protects against back drain from pack to pack, and will
in the event of two low packs continue to switch back and forth to get the
better pack. It is technology used in RPVs and only costs 45 bucks, the cost
of a battery pack. And you can use packs of different capacities as longas
they are the same voltage. 4.8 or 6 volt. This in combination with two
switch harnasses gives better total redundency at a relativly low cost.

John D.

http://www.scalesoaring.net

On Fri, 30 Nov 2001 07:00:54 -0800 Bill Malvey [EMAIL PROTECTED] wrote.
On 11/30/01 1:18 AM, Kent Miller [EMAIL PROTECTED] wrote:

 I saw somewhere that someone makes a dual battery setup. Can someone
steer
 me towards it ?
 
Go here:

http://personal.lig.bellsouth.net/lig/r/e/redscho/

I have been running dual battery packs and two switches for years. There is
absolutely no need to use backers , diodes, or anything else. Simply plug
2 batteries into 2 switches (or even Y them into a single switch) and
plug
into the RX.

All you need to do is make certain you use packs with the same voltage,
i.e.
4.8 or 6.0 volt (4 cells or 5 cells). The capacity is additive, two 1,000
mAh packs gives you 2,000 mAh total capacity.

The enclosed link explains it very well. If you are worried (incorrectly)
about a full pack charging a dead pack try this (I have). Cycle 1 pack
down to 1.1 or 1.0 volts per cell. Charge another pack fully. Plug them
both
into the same RX. Go away for a couple of days. Check voltage when you come
back. You 
~~

Bill Malvey
Ladera Ranch, California





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