digital or analog gyro ?

[maddirk]

Guys, for my old concept 30 heli I want a new gyro, does it have to be analog or can it be digital (cheaper) ?
What's the difference anyway ?
Cheers,
Dirk

[mattydred]

id go for a futaba gy401 or a spartan quark. id stay away from the futaba tail servo's though because they not very reliable. go for an align ds650 tail servo - much better

[maddirk]

id go for a futaba gy401 or a spartan quark. id stay away from the futaba tail servo's though because they not very reliable. go for an align ds650 tail servo - much better

Thanks, mate. What do you think about the difference analogue/ digital then ? What's it mean ?
Cheers,
Dirk

[mattydred]

an analog gyro is 1 of those old mechanical gyros (magnetic motion sensor?). i had 1 on my scale r22 and it worked ok but i didnt trust it.

heres an old analog futaba gyro
http://manuals.hobbico.com/fut/g132-g152-manual.pdf

and i guess all the newer digital gyros have a electronic sensor and not mechanical magnetic sensor

[Coyote]

A digital gydo is faster and more accyrate

[Njoro]

When I bought my first heli a Hirobo shuttle 28, gyros were in their infancy and expensive. My friend and I tied a string to the tail so I could hover while he kept the the tail from wagging, it was a short lived experiment due to a gust getting under the heli and lifting it above head hight the string wasn't long enough so the tail ended up pointing at the ground; the heli did a semi loop and landed on it's head. My buddy never let go of that string through out that scary moment. Afterwards he kept say how well he had held onto that string to the bitter end lol.

After the buddy gyro episode I tied the tail to a swing ball pole in the garden and with a little forward trim I was able to hover about six inches off the ground. After a while I decided that a longer string tied higher up the pole I'd get some more hight; but guess what a gust of wind sent it too high too fast and my tether was too short again "crash".

I saved up for a while and bought the latest gyro from "Quest" I may still have it in the dark recess of the work shop. This gyro was to transform my hovering to new and scary hights, I still carry the mental scars of my early flying.

[maddirk]

Hehe, fab story ! - Thanks, guys, so if I understand correctly, all the modern "digital" gyros will work fine on an old helicopter then.
One more question, does one need a tail gyro at all if alien command is installed ?
Cheers,
D

[Coyote]

Alien command is a pitch and roll stabilizer, it doesnt control or centre the rudder. So yes you still need a gyro to use it.

[maddirk]

Guys, look here: http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=8471

It describes " Turnigy Piezo Head Lock & Standard Gyro. The TR302-AD is compatible with both Digital and Analog systems."

That gyro also does not look to be big enough to house the "analogue" gyro the above comments are describing....

So, there seems to be another difference ? What do the mean with "systems" ?

Cheers, really appreciate your thoughts.
D

[machone]

Hi

New here! Having thought I'd go for a multicopter I've gone off the idea and back to a standard heli for a camera ship. Which gyros and autostabilisation systems should I go for - I'm starting from scratch. All digital, reading the above posts, but which are tried and tested the best for camera work?

Thanks

Richard