My luck was good today I got a R/C car at a local garage sale for $10 which
has a 49 megHzs control frequency so I need not be concerned with CB
stations. i suspect rerceivers are interchangeable if needs be tho just
using an aproach transmitter and measuring activation distances.
I am beginning to see this as a viable comparison test that could be used at
a club meet
Cheers and beers
Art
" wrote in message
news:4QVSc.114239$8_6.109732@attbi_s04...
Well I opened the parcel to check things out
The frequency is 27.5 MHZ and is to be flown in an area
with 200 feet from obstructions such as trees. It will land when beyond
range of transmitter
Art
"Fred Hambrecht Sr - Gilbert News" wrote in message
...
The correct air craft control freqs are in the 72 Mhz band, 75 is used
only
for ground vehicles ie. cars, boats etc.

As a ham you may use any ham freq IAW amateur regs.

"Steve Nosko" wrote in message
...

"
In the US, 27 MHz is a hazardous frequency to be on...don't know
about
elsewhere. Good units are in the 75 MHz range.

Art,

Without the radio signal from the transmitter, the receiver will
respond to noise and move the control servos to unpredictable
positions, pretty much always resulting in a crash. Modern PCM
receivers can be programmed to assume pre-set control positions in the
absence of the control signal. This will usually result in a crash.
I have hundreds of hours flying RC model aircraft.

Russ

On Fri, 13 Aug 2004 04:38:51 GMT, "
wrote:

Your knoweledge exceeds mine on this subject
The instructions say it can take of and also land on at from hard surfaces.
With two engines being in the contol positions of either on or off it would
suggest that without power the plane will "glide" to a landing. this gliding
after exceeding transmitter range does present distance measurement
problems. Perhaps if the plane was weighted the landing could be more
"precise" as you say
but short of a "crash"
Seems like toys holds interests of every one .
Art
"Silly Penguin" wrote in message
...
**** Post for FREE via your newsreader at post.usenet.com ****

A Unwin wrote:
It will **land** when beyond
range of transmitter

Let's be precise - it will crash...



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Are you aware that we are talking ELECTRIC models
Art
"Russ" wrote in message
...
Art,

Without the radio signal from the transmitter, the receiver will
respond to noise and move the control servos to unpredictable
positions, pretty much always resulting in a crash. Modern PCM
receivers can be programmed to assume pre-set control positions in the
absence of the control signal. This will usually result in a crash.
I have hundreds of hours flying RC model aircraft.

Russ

On Fri, 13 Aug 2004 04:38:51 GMT, "
wrote:

Your knoweledge exceeds mine on this subject
The instructions say it can take of and also land on at from hard
surfaces.
With two engines being in the contol positions of either on or off it
would
suggest that without power the plane will "glide" to a landing. this
gliding
after exceeding transmitter range does present distance measurement
problems. Perhaps if the plane was weighted the landing could be more
"precise" as you say
but short of a "crash"
Seems like toys holds interests of every one .
Art
"Silly Penguin" wrote in message
...
**** Post for FREE via your newsreader at post.usenet.com ****

A Unwin wrote:
It will **land** when beyond
range of transmitter

Let's be precise - it will crash...



-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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"Russ" wrote in message
...
Art,

Without the radio signal from the transmitter, the receiver will
respond to noise and move the control servos to unpredictable
positions, pretty much always resulting in a crash. Modern PCM
receivers can be programmed to assume pre-set control positions in the
absence of the control signal. This will usually result in a crash.
I have hundreds of hours flying RC model aircraft.

Off the wall question: What's the "butt-kickinest" high end radio these
days? PCM's been around for many years, anyone doing error correction, FEC,
Direct sequence spread spectrum?

What difference does the motive power have with regard to the control
system? A gassie will react the same way as an electric does when
they lose the transmitted control signal, whether by failure or by
going out of range. An AM or FM radio will react unpredictably when
confronted with loss of signal. PCM radios are more immune to
interference and can be pre-set for failure. Or, are you saying that
the method of powering the model makes a difference in what happens
during radio failure? Even if the model is dynamically stable (most
are), if the servos apply full pitch up and full rudder, a spin will
ensue. I have built and flown almost every kind of model aircraft,
rubber, gas and electric using every kind of contol system including
none over the last fifty years. A "back-yard" electric from the
bargain store will crash without control. The model can be built
light enough so that little, if any, damage will be done. Of course,
there is always the chance that the controls will fail in such a
position that a glide to landing will occur. In that case, go right
out and buy a lotto ticket. Some of those "no control" models used a
method using a fuse to burn a rubber band that allowed the empennage
to pitch up. The model would stall and (hopefully) return to earth in
a steep, deep stall. Little or no damage was sustained because of the
lightness of the construction.

Russ

On Sat, 14 Aug 2004 03:08:46 GMT, "
wrote:

Are you aware that we are talking ELECTRIC models
Art
"Russ" wrote in message
.. .
Art,

Without the radio signal from the transmitter, the receiver will
respond to noise and move the control servos to unpredictable
positions, pretty much always resulting in a crash. Modern PCM
receivers can be programmed to assume pre-set control positions in the
absence of the control signal. This will usually result in a crash.
I have hundreds of hours flying RC model aircraft.

Russ

On Fri, 13 Aug 2004 04:38:51 GMT, "
wrote:

Your knoweledge exceeds mine on this subject
The instructions say it can take of and also land on at from hard
surfaces.
With two engines being in the contol positions of either on or off it
would
suggest that without power the plane will "glide" to a landing. this
gliding
after exceeding transmitter range does present distance measurement
problems. Perhaps if the plane was weighted the landing could be more
"precise" as you say
but short of a "crash"
Seems like toys holds interests of every one .
Art
"Silly Penguin" wrote in message
...
**** Post for FREE via your newsreader at post.usenet.com ****

A Unwin wrote:
It will **land** when beyond
range of transmitter

Let's be precise - it will crash...



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On Fri, 13 Aug 2004 22:19:31 -0500, "Dave VanHorn"
wrote:


"Russ" wrote in message
.. .
Art,

Without the radio signal from the transmitter, the receiver will
respond to noise and move the control servos to unpredictable
positions, pretty much always resulting in a crash. Modern PCM
receivers can be programmed to assume pre-set control positions in the
absence of the control signal. This will usually result in a crash.
I have hundreds of hours flying RC model aircraft.

Off the wall question: What's the "butt-kickinest" high end radio these
days? PCM's been around for many years, anyone doing error correction, FEC,
Direct sequence spread spectrum?


Hi Dave,

I've been away from it for a couple of years, moving, work and
other expensive hobbies. The high-end Airtronics, JRs and Futabas are
still the top of the line. They use PCM but no ECC, FEC or SS. The
transmitters are pretty programmable though. No need for a seperate
heli radio, just program the mixing for a heli control system. The
computer allows for memories for different models, each with custom
mixing and end-point adjustment. No more sliding servo trays for
elevon deltas. Just put a servo on each control surface and mix
appropriately. Dual servo ailerons or flaperons, no problem - just
set 'em up in the TX. You can spend a grand easy on a radio these
days.

Funny, I just got a bunch of stuff out of storage last week
(new house - YAY!) and was looking at a couple of planes longingly.

Russ

Art, here is the solution to your problem!
http://research.microsoft.com/displa...le.aspx?id=685