# How to find out the height and speed of the RC planes?

Discussion in 'Electronic Basics' started by Sea Squid, Mar 21, 2005.

1. ### Sea SquidGuest

When I first bought my townhouse, I thought the huge park behind was
good. Three days after I moved in, I realized it was a testing ground of the
RC plane fans. Tens of noisy planes hover arround the area every weekend.

Now for a technological exercise, I have decided to design a RCPlaneHunter
to bring them down or destroy them in the sky.

First idea:

A device installed on my kid's 4wheeler, which contains a digcam censor,
a powerful uP with some field programmable gate array chips, an air rifle
which can shoot a plastic bullet 200 meters, plus some sensors yet to find
out. My electronics will detect the speed, direction and height of the
plane,
determine the firing angle and time of my rifle and fire.

What are the algorithms to calculate the speed, direction and height of the
plane?

Any new ideas are also welcome.

2. ### ArtGuest

Just take out the operators, not the devices. Works every time. Also: Just
as illegal as the other concept you are proposing. Did these flying groups
"Pre-Exist" your purchase of the townhouse? FWIW??

3. ### Anonymous AtWorkGuest

New idea: Check your local laws. If they are breaking one or more, have
them brought into compliance. If they aren't, realize you should have

5. ### Robert MonsenGuest

Take up the hobby. I understand it's actually quite fun. Then, what you
currently perceive as an annoying and uninteresting buzz will be infused
with the memory of joy you felt during your first 3-point landing, or
the thrill of learning to fly an outside loop.

Also, you won't have to worry about retaliatory strikes from RC planes
dropping paint-gun pellets.

heard the bose is superior to the philips.

Third suggestion: double or triple pane glass. When I bought my house, I
(sadly) didn't consider the noise that might be generated by the
neighbor's huge air-conditioning unit outside my bedroom window. That,
and their obnoxious pool pump, collaborate to generate a deafening drone
on hot nights (where one would naturally enjoy open windows.). However,
double pane glass helped with the noise immensely, dropping it to quite
managable levels. Not only that, but my neighbor with the noisy air
conditioner saw us do it, and decided to do it himself. Now, his air
conditioner runs 1/2 as much, due to the superior insulation.

--
Regards,
Robert Monsen

"Your Highness, I have no need of this hypothesis."
- Pierre Laplace (1749-1827), to Napoleon,
on why his works on celestial mechanics make no mention of God.

6. ### ThotGuest

With white noise or, more elegantly, with opposite phase interference

That's why RC military airplanes have not become popular yet.

Thot

7. ### Rich GriseGuest

You'd never be able to hit an RC plane with a klooge like this.

What you do is, get your own plane, learn to fly it, and mount rockets on
it.

Test it out on the police chopper just for S&G.

Good Luck!
Rich

8. ### Eric R SnowGuest

Rich, great idea! Especially that last part! That will for sure tell
him whether or not his idea is any good. And if it really does work,
even a little, he'll get to live someplace where it's guaranteed he
won't be bothered by RC planes.
ERS

9. ### Rich GriseGuest

Eerily, on CSI last night, the murder weapon was an RC chopper
with rifles mounted on it, normally used by some special police
SWAT-type unit.

Cheers!
Rich