wrote in message
oups.com...
I've often thought about some orientation aid for RC aircraft, but I
think it would cost too much to make something that was accurate. You
don't really need it for helis anyway, since you can fly in any
direction. I guess I'm saying "bah".

I don't have a clue how something like that would work. It's just a matter
of learning the reflexes for the different positions. Flying backwards or
sideways only adds other control requirements that aren't necessarily
intuitive. There's also the added fact that all the right side up forward,
backwards, and sideways stuff can be done while flying inverted which
scrambles the required control inputs yet again. In the long run, I firmly
believe that by the time you get some kind of electronic aid working for all
of this, you would probably have worked it out in your head and be able to
fly it more smoothly to boot!

And we're not cheating with the heading-hold gyros! It is possible
to fly an RC heli without a gyro, but it's a lot of work. Esspecially
in the wind. There is an inbetween option; most hobby-grade gyros have
a "rate" mode, where it simply slows rotation to sane speeds, rather
than holding it in one direction.

As someone who did his initial hover training without the benefit of a gyro,
they were just becoming popular back in 1982 and I didn't know they existed
for the first few months that I tried to learn to hover, it's a lot easier
to fly the model in a modest (10 mph or so) breeze. The model wants to
weather vane into the wind which becomes a natural yaw damper. The gyros we
had back then were mechanical. A couple of brass fly weights attached to
the output shaft of an electric motor that was mounted on a gimble with a
potentiometer like those used on the control sticks of the RC transmitter.
All it was, was a yaw damper and, by todays standards, not a very good one!
The modern "gyro" is all solid state and all of them that have heading hold
capability also have what we call a "normal" mode which behaves essentially
like the old mechanical units did 20 years ago, albeit with much better
precision.

Those cheap coaxials look like fun. If you want something that will fly
a bit more like a real heli and will do aerobatics, the T-rex is a
really good little machine. All the fun of a "real" RC heli, but not
quite as expensive.

Generally true although you have to be careful with models like the T-Rex.
They offer this model in a fully upgraded version with all the bells and
whistles. It sells in the neighborhood of $500 or so, give or take a little
depending on which hobby shop's advertisement you read. Then you get to buy
batteries, RC flight control servos, receiver, gyro, etc. You can build and
fly a "nice" IC (internal combustion) powered model for that kind of money!
Even those who buy the base version of the model eventually start upgrading
it as the stock plastics parts don't handle a crash as well and over time,
they've got all the metal upgrades on there, only they've paid for them one
at a time so now that $500 model turns out to be a $650 model. They can get
you, one way or the other!

RC helis will have to do for me untill I can afford lessons in a
full-scale.

That's one area that you and I definitely have in common! :-(

Good luck & Fly Safe,
Steve R.