During the discussion about limiting winch strength and reducing line breaks
there have been several references to F3B winches.
I am not familiar with F3B flying or the winch specs. Can someone explain F3B
or point me to a site where I can read about it?
Best Regards,
Ed Anderson
At the Nats last year Jim Thomas takes the
mic and settles the crowd for a big announcement,
most pause to listen - he say's ' Gordy is on the field '
not more than 2 seconds later someone utters --
' has he popped off yet '. I guess these are the times I
remember about the Nats.
Sorry Gordy - c
Are you completely set on using West? As I recall (although I don't recall
where
the numberrs come from) West System doesn't develop properties with post
curing as nice as some other epoxies. For instance, I have an epoxy mix picked
up from a boatbuilder I know which has a considerably higher
How about, "Popovratti."
- Original Message -
From: "S Meyer" <[EMAIL PROTECTED]>
To: "Jerry Shape" <[EMAIL PROTECTED]>
Cc: "Soaring Exchange"
Sent: Friday, December 21, 2007 11:55 PM
Subject: Re: [RCSE] Launch Limiting
At 08:00 PM 12/21/2007, Jerry Shape wrote:
Dayton CDs (me)also
Bill,
I use Pro Set and it has all the post curing information right on it.
Its a two phase curing process and I don't remember exactly what the
times are, but I seem to remember 105 degrees for 24 hours. It does
depend on the brand and "model".
As far as I remember, West Systems doesn't rea
This link should be helpful
http://www.google.com/search?q=f3b+winch
[EMAIL PROTECTED] wrote:
During the discussion about limiting winch strength and reducing line
breaks there have been several references to F3B winches.
I am not familiar with F3B flying or the winch specs. Can someone
ex
On the subject of resisting down to F3B "strength":
I understand the argument and rationale. But This is a problem. F3B
winches are very well built and designed. They are very efficient. The
motors selected for use are already very close to the resisted number.
We play all kinds of games with
OTOH...
I would say "real" F3B winches are quite good for TD, especially for
woody planes, if .. (BIG IF) the pilot does not load up a lot of
tension on the line. We've found my F3B winch a perfect for launching
Oly 2's in my club, as the power is low and the line is stretchy.
Daryl doe
Without knowing for sure, I don't think we want the same resistance as
the F3B winches.
The F3B winches use mono so they get power from that, and the FLS draws
way more amperage, so if we resistor down to where the F3B winches are
the resistors will probably get smoked...
I would think we would
Daryl does make an excellent point that a detuned TD winch with a narrow
spool & braided line, might cause some issues with heavier stronger planes.
Isn't that the objective?? Keep lines from breaking and strong planes
from launching high.
In the end what I know is that no matter what you
I last talked to Joe at the Nats last summer. At that time, he said
that they would be leaving for New Zealand the week after Visalia and
I saw that his scores at Visalia were posted on the internet.
Chuck Anderson
At 09:23 AM 12/21/2007, you wrote:
His last main event in the US was at the J
Denny, I'm sure I've spelled your name wrong, but could you please contact me
by e-mail or call me @ 248-515-2153 cell at your earliest convenience ?
Regards, Dave Corven.
RCSE-List facilities provided by Model Airplane News. Send "subscribe" and
"unsubscribe" requests to [EMAIL PROTECTED] Ple
Jeff, I had a FLS wade built motor powered winch with a wide drum that I used
with mono for F3B and with braided 200 lb test line for TD. this winch had a
1/2 inch dia threaded stainless steel rod as a resistor to make it F3B legal
and it was never disconnected.
1) You can't hurt the S/S rod wi
There's a much better method than using a resistor. The resistor
generates heat that is pure wasted energy. Instead, an automatic pulser
that cuts the power to the solenoids when the current exceeds a certain
value is a much better solution. There's an even better advantage to
this solution bec
One big advantage of the resistor is that the heat goes into the air -
not into the windings and brushes when you start pulsing the juice for a
power limit.
Dick Barker
HLG doesn't need any stinking winch!
At 12:38 PM -0500 12/22/07, Anker Berg-Sonne wrote:
>There's a much better method than us
Dave, all well and good, but the average club/pilot doesn't have a wide
drum only a drum that equals the length of the long shaft.
Hell if we use a wide drum there's no need for a long shaft, just build
an F3B winch.
I have used my F3B winch with braided on occasion, it doesn't have the
zip
That resistor rod is a really good idea -- simple, effective and robust.
A lot of the discussion about launching has been the effect on the line
but that's the least of our problems. We've put stronger line on our
winches -- we're at 270lb test at the moment -- but all that's done for
us is th
High Starts.
No broken lines, you can pre-determine the stretch pace count. Marks got
some great ones.
The launches will be lower so those of you who think it will be a more
challenging contest and give you a better chance at glory will be really happy.
No resistors, no tension limiters,
Actually I haven't proposed that we use specific F3B winches for TD, but to use
the F3B resistance spec. as base line to better control and equalize the FLS
powered winches for our US TD comps and allow the lower lb test line usage.
A side effect is that this would allow a FLS powered winch to
Gordy,
For several weekends now, this is exactly what has been done.
Testing... Visalia configurated lines (heavier line on bottom, to
turnaround, lighter/stretchier line to launch hook). Rick Bothel has
also come up with a really nice configuration for keeping lines up off
the ground. The
Gordy,
For several weekends now, this is exactly what has been done.
Testing... Visalia configurated lines (heavier line on bottom, to
turnaround, lighter/stretchier line to launch hook). Rick Bothel has
also come up with a really nice configuration for keeping lines up off
the ground. T
I've always heard that it's not good to stall your winch motor, that
it's hard on the motor.
Is this going to happen even more so if you detune the winches ?
Just curious, and wondering if that would be a new issue for you guys to
have
to deal with then.
Dave Hauch
www.rc-builds.com
- Ori
I must agree with Brian. My first winch used a two inch diameter
welded aluminum drum on a standard 12 volt Ford starter motor with a
12 volt battery. The two inch drum didn't produce enough line speed
to break lines so easy and we used much smaller lines. We finally
switched to larger drums
Guys, Forgive the Bandwidth intrusion but I know that some of you are
interested in Rc Helicopters. About 20 minutes ago I heard the FedEx truck
Backing
up the driveway. There was a box waiting and I knew instantly it was my long
awaited Blade 400. I opened the box in the drive way and pulle
Very cool, sounds like I need a new toy! ;-)
At 05:30 PM 12/22/2007, [EMAIL PROTECTED] wrote:
Guys, Forgive the Bandwidth intrusion but I know that some of you
are interested in Rc Helicopters. About 20 minutes ago I heard the
FedEx truck Backing up the driveway. There was a box waiting and I
Sorry I'm not buying it.
My planes stall the winch, with a smaller drum, I get to turn it.
We don't use light line anymore, so line speed isn't an issue. The line
creates the line speed by the amount it puts on the drum.
During the morning, a bigger drum makes sense, during the noon baloon,
2"
I did and used such a winch over 30 years ago.
Chuck Anderson
At 02:40 PM 12/21/2007, you wrote:
There have been various proposals about limiting winch current via a
series resistor, but nobody has mentioned directly governing line tension.
RCSE-List facilities provided by Model Airplane New
I think Dennis Phelan, of Mike Lachowski Land, deserves the credit for the S/S
threaded resistor rod rod for use with the FLS Motors.
At least I got my first one from Dennis when he graduated to a F3B specific
winch.
So blame Dennis, not me.
Regards, Dave Corven.
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