Bill,
That is interesting. First, my reply to Matthew was based on the assumption
that he was flying in a typical gym. In a high ceiling site like the USIC, we
(Emil Schutzel, Tem Johnson & myself) also use 18" long motors. Our motors
average .85 - .90 grams & our props are 45 or 47 degrees. If we use lower
pitch props we invariably run out of turns.
In low ceiling sites, we still prefer higher pitch props to slow down the
prop & also slow down the climb. In our local contests (low ceilings with lots
of trusses, etc) a winning time is at least 5 minutes & can be as high as 6
minutes.
Gary Hodson
In a message dated 7/30/2008 9:26:30 A.M. Central Daylight Time,
b.gowen_at_comcast.net writes:
I seem to always use larger motors than most people. My 9:30 at USIC 2007
was on 1 gram of 5/99 x 18" (.050"). I've never done well with 45 degree prop
blades. Mine typically are set in the 34 to 38 degree range.
----- Original Message -----
From: _Warthodson_at_aol.War_ (mailto:Warthodson_at_aol.com)
To: _Indoor_ConstructionIndoor_ConstrInd_
(mailto:Indoor_Construction_at_yahoogroups.com)
Sent: Wednesday, July 30, 2008 10:05 AM
Subject: Re: [Indoor_ConstructioSubject: Re:
I am not familiar with that particular plan. However, based on my
experience, I think you are on the right track with the information below.
Two
comments. I doubt that you need to increase the rudder area, but doing so
won't hurt
either. I think the 0.030" rubber will prove to be too small. If you are
flying in a typical gym, I would use a 13"-15" loop of 0.034" rubber. The
thicker
rubber will improve the cruise portion of the flight. If you are not happy
with the results, look around for a proven design & build it exactly as
shown.
Don't try to improve it until you have a good base line of experience with
the proven design.
Gary Hodson
In a message dated 7/28/2008 12:40:38 A.M. Central Daylight Time,
_mattnsim_at_yahoo.mattns_ (mailto:mattnsim_at_yahoo.com.au) writes:
Hi there all, I am looking for some expert guidance on a beginers level
A6. I am not new to free flight, but am i new to A6. I have built lots
of peanuts and have actually won an Indoor peanut scale contest. I made
an A6-5a by bruce mcrory. I did enlarge the rudder,The plan indicated
that the rudder had been reduced in size as a test to see how it went.
I did not need that agrivation to start out with so i increased the
rudder by about 15%. The models all up weight is 1.2 grams. It is
covered in pre shrunk condensor paper and i am looking for some expert
advice on trimming. My prop blades are set at 45 degrees to one another
and i have used a twisted wire pigtail prop hangar.
I plan on using .030 rubber to start with as per the plan and we will
see how i go from there. If there is anyone out there with some tips
that would be greatly appreciated.
regards
Matthew
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Received on Thu Jul 31 2008 - 06:49:36 CEST