SCAT Electronic News July 8 1999
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- Category: Archive 1999
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SCAT Electronic News July 8 1999
Table of Contents
=================
Rubber tester wire tap - Anon
Weather info - Wiley
US Free Flight Team Contributions - Johannes
America's Cup
Questions, Please Post - Janhke
Subject: Rubber
=================
From rubber tester #1
Roger, Did you use the new rubber for your flights over the weekend, and if
so did you have any breakage? XXXX And I both used it and only had one motor
break when XXXX put in 493 turns in a 28 strand motor which I think was a bit
of an over wind! I wound consistantly to 480 -485 turns and had none
break. I thought it worked excellenly.
Well.... Rubber tester #2 called last
night and was in a tither. He said he got calls from some guys that went
to Muncie and they all had a lot of motors breaking. One guy claimed he
had 12 motors break. I think he said it was Sportsman # 1.
I told him that wasn't
our experience here. So we will see. Let me know what you think.
[I replied ..
I used the May rubber in the heat of the afternoon, it must have 95 degrees
and did not have any breaks. I was winding under my canopy. The next morning
I did break a motor when I was just at full wind.
I did however find a couple of spots when making the motors where the rubber
got very thin and would break. I did not use those sections of rubber.]
Subject: rubber
From : Rubber tester #1
I purposely wound the May rubber in the sun with no shielding just to see
if it would hold up, and it did. The temperature wes about 92 degrees.
Subject: More Rubber
From Rubber tester #1
Roger, are you going to test site #1 this Saturday? XXXX and XXXX wont
be going but I am going to go as I've a lot of testing to do. I got my
rubber and he sent some 5 pound boxes!!!!
['serious' F1B flyers always get rubber in 10 pound boxes]
I called and asked him [John Clapp at FAI Model Supply] what that
was all about and he said he stripped some 1/4" into 1/8".
He said the 1/4 was a little less in energy storage but should be
more robust. I tested a couple of motors and it is a little less
energy storage but still very good. It remains to be seen if it is
more robust or not. I'll try some on Saturday.
[It was interesting to note that the 1/8 and 1/4 rubber from the
'same' batch did have slightly different characteristics. From
a talk that John Clapp gave about 50% of the rubber they buy is 1/8.
But I guess that the F1B guys were low and with the World Champs coming
up in a comparative unknown site they wanted to make sure they had some
different options.]
[Saturday - We flew with the rubber that came from the stripped 1/4
and tester #1's model went just fine. By the time we had finished testing the
temperature was up in the high 80's .. it was then time to go to breakfast
at Annie's]
Subject Rubber
From: Tester #1
I had a call from sportsman #2, a serious indoor flyer. He tried the
rubber, said it was great. Did not break any motors.
[ ... and so on for ever ....]
weather info
============
Author : This email address is being protected from spambots. You need JavaScript enabled to view it.
Hi Roger:
Picked this up from Newsweek. Go to
http://www.intellicast.com/KITEcast/
You can easily get to local wind conditions by hitting the WINDcast icon.
>From there you can select your local area and find out what wind
conditions are predicted for your local area. More directly, go to
http://www.intellicast.com/Sail/World/UnitedStates/WINDcast/d1_00/
from there you can click on an area of the country and get the information
you need.
As always, I enjoy the SCAT site.
Cheers,
Ed Wiley
E. O. Wiley
Division of Fishes
Natural History Museum
University of Kansas
Lawrence, KS 66045 USA
This email address is being protected from spambots. You need JavaScript enabled to view it.
785-864-4038
US Free Flight Team Contributions
=================================
Author : This email address is being protected from spambots. You need JavaScript enabled to view it.
Hi Roger,
I wanted to provide you an update on the status of our collective
efforts to raise the second half of the money needed to support the
Team. To date 5 clubs, 6 individuals, 1 hobby shop, and 1 event have
contributed a total of $1815. Only 2 people have taken advantage of the
tax deductible benefit of a donation through the NFFS.
The Clubs that have contributed are: Sierra Eagles, SCAT, Thermaleers
(St. Louis ), Dallas Cloud Climbers, and Detroit Balsa Bugs for a total
of $1200.
The "event" was "Big Al's Shootout" where 10 of us elected to contribute
our entry fee rather than accept the refund that was offered.
With about 3 weeks to go before the 1 Aug deadline we are still short.
However, it's NOT TOO LATE. Donations can still be sent to George
Batiuk, Blake Jensen, Bob Johannes, or Frank Zumer, NFFS Treasurer.
Contributions sent to Frank will be tax deductible.
Regards, Bob
[Editorial Note -
Note that this year a a little different than in the past. The AMA
is providing less support than in the past and expenses are a little
higher in going to Israel. Bob Johannes and the AAES set themselves
high targets on the money that they wanted to raise for the team.
Unfortunately because of one of the AAES team was ill and lack of time they
were not able to raise the money they had hoped for from outside
the direct aeromodelling community. So far more money has been contributed
than in the past, but as I mentioned the expenses are higher this
year.]
America's Cup
=============
- no we do not have any results or reports.. so how about you guys
who have organized or attended recent events sending us something.
We did hear that it was somewhat breezy for the MMM 14 rounder and
that John Pratt won F1B, with Herb Sessums second.
Please post
===========
Author : This email address is being protected from spambots. You need JavaScript enabled to view it.
Roger,
I have two questions:
1.) I am gathering materials for a new wakefield, and rebuilding one or two
old ones. Since I don't build or compete to often these days (two small
kids, remodelling house, etc.) I want to build for the 30 gram rules which
will be in effect in 2002. What are the design changes, from strands to
aspect ratio, other fliers anticipate making?
[ Ross,
I know of a couple of people who have flown current models on 30 grams.
They went OK, with the corresponding reduction one might expect.
There has been some writing by Peter King and others on aspect ratio
and I would not think chnaging that would be productive.
Possibly making the motor tube a little shorter. They
did not change the stranding.]
2.) My son age 3, shows much interest and promise in free flight. Right now
he flies small rubber models and hand launch gliders. He is also curious
about engines. I tried to run the cox .020 on my pee wee 30 for him but the
engine wasn't cooperating that day. I then pulled out an old baby bee,
dormant since my u-control days 20 years ago, and it fired right up. Is
there a pee wee 30-like event for the baby bee? Is there support for such
an event? Since these engines are so abundant, so forgiving, and in the
hands of so many non-free flighters, they might be an excellent choice for
an introductory event.
If an event does not exist how does this proposal sound?
a.) 40" max dimensions in any direction ( or 36" or 200 square inch wing).
b.) 200 gram minumum weight.
c.) 15 sec. engine run / eye dropper tank (same as pee wee 30).
d.) No auto surfaces except DT (same as pee wee 30).
e.) Power is a stock Baby Bee .049, with single intake port cylinder, and
standard glow head. No mods except a hole in the tank for the fule line. A
stock plastic tankless backplate / reed valve assembly is acceptable.
f.) No ROG requirement.
Ross Jahnke
....................
Roger Morrell
