Knight 3D, FF9 and Revlock 10 help!

[SimonN]

Hi All,

Sorry, being a bit thick today, I've searched for the answer to my question but it never seems to have never been asked. Everybody else must have worked it out for themselves

Anyway, here goes...

Firstly, headspeed. I'm thinking about 2100 on my K3D, does that sound about right? I've never tached the head, always set it up "by ear"!

Next, setting it to engage on my FF9. These are my thoughts: Assign a spare channel to my idle up switch. In "normal" mode set the end point to "0". This will mean the govenor will not engage (I think!). Then set the end point for the two idle up positions to whatever it needs to be be to give me the correct RPM. I'm assuming that this will mean the Revlock will engage when I flick to idle up. I'm not too sure that this is what I want though because I will have to be very careful when hitting the switch because the headspeed will jump dramatically, is this normal? At the moment my throttle / pitch curves are the same above mid stick in normal and idle up meaning little or no jump when I switch between the two.... Obviously I could be completely wrong with how I am thinking it should engaged!
(I realise I can use the "Governor" function on the FF9 which I presume will have the same affect as the above!)

And finally, the instructions mention piro correction and mixing. This bit's got me completely stumped! I understand the change of head speed when performing a piro but have no idea how to "mix the rudder channel of you transmitter to the govenor control channel". Can somebody help me here!

And that's it. Clearly I don't have a clue!!

Cheers,
Simon

[Ade_Law]

try this;

http://www.flyingaid.co.uk/infobase/electronics.asp

i dont really see the point for the piro correction. the idea is that when you piro to the right the headspeed will stay the same to the model which means that the speed of the blade through the air will go up. so the idea is to do a mix to cancel it out i personally dont bother.

you dont need to worry about changing flight mode too early gov will smooth this out.

Ade

[SimonN]

Thanks Ade,

I've had a read through your article, I've just checked my throttle end points and, for starters, they're absolutely miles out (I'm too ashamed to tell you what they're set at but let's just say I'll be shortening my servo horn considerably

Moving on, does a headspeed of 2100 sound about right for loops, rolls and flips but no hard 3D (lack of ability..)?

I think I've worked out how it engages, but I'm still not sure on the "mixing" as described in the revlock instructions. Your article doesn't mention it, do I presume I don't need to worry about it?

Simon

[SimonN]

Ade,

Just ignore my last post, I typed it at the same time as you editted your post!

Just the headspeed question if you wouldn't mind....

Oh, and have a good day tomorrow at the fly-in. I'd love to come along to see you guys fly but unfortunately I've got a kitchen to fit or the wife will divorce me!!!

Simon

[Ade_Law]

i run about 2050 anything from 1900 upwards is good

Ade

[moyesboy]

With a 50 the headspeeds are 2000 or more, so the effect of the blade lift getting less whn you piroette left, and getting more when you piroette right is not very much (the blade revs are high compared to the piroette speed).
On a larger heli the piroette speeds may be just a big, but the blade revs less so the effect is more.
If you can move the left stick to make it turn so accurately thart you notice you need to give it a bit more or a bit less collective to compensate that maybe the mix is worth it.
3D fliers who aren't trying to do inch perfect hovering manoevres generally don't seem to bother with it.

[Andy from Sandy]

On the FF9 you could also use the "C" switch.
Up=low headspeed
Middle=Off
Down=High headspeed.

You will then be able to choose if you want the governor off when doing engine tuning for example but need to be in idle up so you can get the helicopter down from a climb out.

[SimonN]

If you can move the left stick to make it turn so accurately thart you notice you need to give it a bit more or a bit less collective to compensate that maybe the mix is worth it.

Err, I'm afraid I can't do anyrhing that accurately! I think I'm just going to ignore that bit of the destructions!

Evo Andy,
Thanks mate, I'm going to assign it to my idle up switch so when I go into idle up it engages but when I return to a hovver and return to "normal" mode I'm back in control.... hopefully....

Simon

[Andy from Sandy]

That's the beauty of these transmitters. You are in control and can decide how you want it to work. I decided to separate out flight mode, governor and gyro onto different switches so I can play with turning things on and of at different times.