Re: [RCSE] Small airspeed indicators?

2000-02-02 Thread Paul Breed

I'm working on a data recording system:

Altitude.
Pitot Airspeed.
2 axis Acceleration.
Temperature
RX battery voltage.
RX signal quality. (How many cycles have been missed)

GPS position
Compass heading.


The system will telemeter the data to the ground using a small
Amateur Radio  on 70cm or 440 Mhz. (2 Meters is also possible)

The overall dimension for the complete system will be  3.7" x 2.2 " x 1.1" 
and 170gm.

All of these weights/sizes  do not include the battery, 6.0 V at  < 200ma.

A lot less battery is needed if you don't need the GPS.

I'm developing the system for my own use.

If there was enough interest (10 people) I might be persuaded to build and 
sell the systems.
The realistic selling price for the complete system would be about $1K,
not including the Laptop on the ground side .


Paul




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Re: [RCSE] Stab Joiner Rods

2000-02-02 Thread jebach


If the stab rods are steel stick them in a potato overnight.  They will
build up a slight layer of rust/starch.  It willnot enlarge the carrier
tubes and will give a snug fit.
A gut Amish trick!
At 08:43 AM 2/2/00 -0800, The Love Villar Family wrote:
>I have done all of the following in the past:
>
>1. Beeswax -- works well, except in warm weather.
>
>2. Put a slight "kink" in the rods -- but you have to be careful not to move
>the stabs out of the horizontal plane.
>
>3. Hit the rods a few times with a ballpeen hammer to "flatten" them at the
>end -- you will eventually enlarge your joiner tubes if you take the stabs
>on and off a lot. 
>
>Good luck, Keith
>
>
>> I remember some time ago there was a discussion about how to "thicken" your
>> stab joiner rods if they were a bit sloppy.  I seem to recall someone
>> posting a tip to use a glue stick or wax to do coat the rod and make it a
>> better fit.
>> 
>> Any Ideas?
>
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>

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Re: [RCSE] Re: MH32 / SD7037 what?

2000-02-02 Thread Bill & Rose Haymaker

Yea RB, what wrong with you?


-Original Message-
From: Bill Swingle <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: Wednesday, February 02, 2000 11:40 AM
Subject: [RCSE] Re: MH32 / SD7037 what?


>Excuse me but I'm a bit confused. I've compared the MH32 vs. the SD7073 and
>they look VERY different to me.
>
>-The weight line is *roughly* 33% for the MH but only
> *roughly* 25% for the SD.
>
>-The SD is *roughly* 9% thick while the MH is about 7.5% thick.
>
>-The SD has *roughly* Double the camber of the MH.
>
>What am I missing? They do NOT appear similar to me!
>
>BTW, I used the word "roughly" because I did not look up the actual numbers
>but rather opened my CAD program and examined the actual foils directly.
>
>Bill Swingle
>[EMAIL PROTECTED]
>Pleasanton, CA
>
>
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Re: [RCSE] Lead poisoning (why we shouldn't inhale lead fumes ... )

2000-02-02 Thread Paul Klissner

> Yes, lead is a terrible poison that easily can kill you,
> even in rather small doses, but it has to be repeated over
> and over. 

 The killing or the lead consumption?

>And as soon as you stop exposing yourself you slowly,
>but surely, pee it all out!

 I beg your pardon, sir!  Are we talking about lead poisoning or  
 exhibitionism and water sports?  Glider pilots seldom expose   
 themselves, but have been known to sport their fuselages around the   
 flying fields.

> Sometimes lead poisoning is blamed for the decline of the Roman
> Empire, 

 Exhibitionists, if ever there were any... I guess we're leaving 
 the French out of this discussion.

> Remember that you get sterile first, anemia second and then you >
> simply die :-)!

 You make it sound so straight forward... simple even.
 Where can I get some?

> Blood transfusions might work, but then you CAN get aids, hepatitis
> a, b or c, mad cow disease, plus a number of other illnesses and 
> syndromes ...

 Yeah, but Mad Cow Disease doesn't prevent people from
 flying gliders.  


(Sorry I just had to post something blatantly silly.
Now I'll just crawl back into my cage and try to stay on topic
for awhile).

-Paul
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Re: [RCSE] Tension?

2000-02-02 Thread Aerofoam



> Can anyone tell me how to set the tension on a hot wire bow? What should I
> look for as signs of too little or too much tension? Thanks.
>

It breaks if you have too much tension.

 Mark Mech
[EMAIL PROTECTED]
www.aerofoam.com


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Re: [RCSE] Hot Wire

2000-02-02 Thread Aerofoam

I have used inconel welding rods and they are very good, but you
need to weld 2 together for a long bow.

I use stainless fishing leader from .014 to .032 depending on bow length.

 Mark Mech
[EMAIL PROTECTED]
www.aerofoam.com


> I use 0.032" type 302 stainless safety wire, works great.
> I bought my lifetime supply from Aircraft Spruce for about $5.
> http://www.aircraft-spruce.com/main.html
>
> Even better might be Inconol 600 wire, also available form Aircraft
> Spruce. Costly but not bad when you only buy the several feet you
> need for your cutter.
>
> michael N6CHV AMA 77292



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[RCSE] Lead poisoning (why we shouldn't inhale lead fumes ... )

2000-02-02 Thread Tord

Bonjour Louis,

Ca va? 

Tout va bein en Suede, pour le moment! Mais le vent est terrible ...

Yes, lead is a terrible poison that easily can kill you,
even in rather small doses, but it has to be repeated over
and over. And as soon as you stop exposing yourself you slowly,
but surely, pee it all out!

Sometimes lead poisoning is blamed for the decline of the Roman
Empire, but considering the tons of lead humanity have inhaled
during the years of leaded petrol it is amazing that anyone of 
us are around! 

In battery factories, where they make (S)LAs, they have to take extreme 
precausions, like fresh air masks for everyone, airtight clothing, et cetera, 
and still, occasionally, a few workers have to be sent home to get away from 
the lead for a while (they take blood samples every so often). The same is true in
the auto industry, where solder is used in certain joints and those polishing
the metal in the soldered areas have to have the same equipment as those
at the battery manufacturer, and if they are just a bit careless they 
too have to stay at home for a few months.

Remember that you get sterile first, anemia second and then you simply die :-)!
Or so I was told, anyway! Kidneys probably fare badly, too!

Blood transfusions might work, but then you CAN get aids, hepatitis a, b or c,
mad cow disease, plus a number of other illnesses and syndromes ...

I have always been very lax in my handling of lead, but lead plate is so nice
to use, and very easy to cut to size, suitable as sinkers, nose weights, or
whatever! 

As far as I am aware I have not become worse mentally or physically due to 
this lead cutting and handling - but I only do it a few times (at the most) 
a year! 

Tord,
Sweden

*'`'*.,.*'`'*.,.*'`'*.,.*'`'*.,.*'`'*.,.*'`'*.,.*'`'*.,.*'`'*.,.*
-- 
If reply difficulties - use [EMAIL PROTECTED]

Tord S. Eriksson, Ovralidsg.25:5, S-422 47 Hisings Backa, Sweden

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Re: [RCSE] ISSA

2000-02-02 Thread Dave Wenzlick

http://www.soaringissa.org/

Works for me.


Dave Wenzlick
Mesa AZ

Gary Milabar wrote:
> 
> Has the ISSA (International Scale Soaring Association) changed their
> website address or is it under construction. I can't seem to get to their
> home page.
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[RCSE] ISSA

2000-02-02 Thread Gary Milabar

Has the ISSA (International Scale Soaring Association) changed their
website address or is it under construction. I can't seem to get to their
home page.

 Gary M. Elko Nevada
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[RCSE] Small airspeed indicators?

2000-02-02 Thread AMA3655

Does anybody know of a commercially available airspeed indicator small enough 
for RC use? Pitot/static type with small pressure sensors on a chip with 
signal conditioning and a digital output would be ideal.
thanks - Rob Glover
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Re: [RCSE] Tension?

2000-02-02 Thread Moved by the wind.



[EMAIL PROTECTED] wrote:

> Can anyone tell me how to set the tension on a hot wire bow? What should I look for 
>as signs of too little

The wire bows out when you cut.

> or too much tension?

Wire breaks.

It's pretty much trial and error.

Too slow= ruff surface that looks melted.
Too fast= lots of drag on wire.
Just right= Angle hair in blue or pink foam, in white it looks right, you'll know it.

Rich B

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Re: [RCSE] Lead Forming method

2000-02-02 Thread Rick Eckel

Brian,

I have never experienced any problem from moisture.  The lead pours in and
solidifies without any problems.  Of course I use "damp" sand not "wet"
sand.  Don't leave standing water in the container as that will mess things
up... although it doesn't seem to be dangerous.

Rick



At 08:42 AM 2/1/00 -0800, Brian Chan wrote:
>>Here's a simple method that works for me.
>>
>>Make a small box of wet sand (dirt even works).
>>Poke the nose of you plane into the sand.
>>Take some tire weights (can get used ones free at the tire place if 
>>you know somebody).
>>Hold with a pair of pliers and melt into depression with a torch.
>>Keep it close and hot for a non layered solid block the shape of 
>>your (or your planes) nose.
>
>And stand way back. Any moisture in the mold will be super heated and 
>turns into steam and bubble up the liquid lead and makes a mess.
>
>Brian
>
>Brian Chan, Trapped in the Jungle of  Bureaucratic Lead Tape and Sinking.
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>
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Re: [RCSE] Aileron/Rudder mixing

2000-02-02 Thread RH1037

When using A/R mixing, can you still use rudder independently?
also I have a futaba 6 xa, not with specific sailplane programsbut 
programmable...for example if I wanted "Crow" for landing, would it still be 
possible? during crow, how are ailerons functioning? Are they full up and 
flaps full down, and are you controlling yaw and roll with rudder alone? 
Rodger
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