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08-02-2007 01:32 PM  13 years ago
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Heliburg

rrNovice

New Zealand

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Radio Settings Progression.
Hi,

I have been flying my new Caliber 5 for a while now, just hovering and have managed to get the engine running really smooth, aswell as the heli flying with a solid tail. I have now moved onto learning figure 8's and am currently flying around slowly doing figure 8's and working on learning banked turns.

My question here is when and what do I start changing on the Tx to match my progression in flying, ever since getting my heli in the air and getting it trimmed out, I have had -4 - +9 pitch, and had a fairly modest throttle curve. So I would like to know now that I am starting to learn forward flight, what settings on the radio should I change to suit the flying that I am now doing.

Any help appreciated, cheers Shaun.
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08-02-2007 02:12 PM  13 years ago
BarracudaHockey

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Jacksonville FL

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http://www.raptortechnique.com has a pretty good discussion on throttle and pitch curve setup as you progress in your flying. The info applies to any heli.Andy
AMA 77227
http://www.jaxrc.com
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08-02-2007 02:20 PM  13 years ago
Markus87

rrApprentice

Melbourne, AU

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I know others are more knowledgeable than I but i think -4/+9 on the pitch curve is fine for beginning forward flight, its just a matter of setting up your throttle curves to keep the blades running at a consistent RPM. you might also want to set a new flight mode that adds a little throttle in the negative pitch region, to keep up head speed while doing a hard stop.

I'm at the same stage as you, just moving into fast forward flight and i've spent a while fiddling with the throttle curves trying to keep a good RPM on the rotors.
i've got

low stick -4* pitch 40% throttle (might need a little more)
Mid stick 5.5* Pitch 50% throttle (just get the throttle so your hovering)
High stick 9* Pitch 90-100% throttle (haven't used that much pitch yet so i'm not sure what my RPM's are doing in this region)

hope this helps

Mark
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08-02-2007 05:48 PM  13 years ago
oldboldpilot

rrKey Veteran

Southern California

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Heliburg,

On the assumption you will be moving into aerobatics when the time is right, set up a linear idle-up pitch curve going from -max through 0 at mid-stick to +max, where "max" is half the total pitch range of your heli's head. For example, if the head covers a 20 degree pitch range, then this would be -10, 0, +10.

The corresponding throttle curve would be +100, 50, +100 (an inverted "V" with half throttle at zero pitch).

When you are ready to try this idle up, fly into a full-pitch climb-out, then hit the switch.

When you are ready to land, do a high approach, and switch back to "normal."

You can land in idle up, of course. As the rotor speed will be higher than in normal, the heli will be quite responsive.

You can do loops and stall turns in normal. Loops will not look very round at the top because when you go to negative pitch across the top, the power goes off. In idle up, you still have power when inverted, in addition to the maximum pitch available.
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08-02-2007 06:03 PM  13 years ago
Pistol Pete

rrProfessor

Seffner, FL

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seems like you are doing great!

given your details, i would now concentrate on taking off and landing in ANY direction...food for thought.
~~Enjoying the hobby one flight at a time~~
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08-02-2007 06:34 PM  13 years ago
Zaneman007

rrElite Veteran

Texas - USA

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I would recommend setting your idle ups, 1 and 2. Get in the habit of using the flight mode switch. I have -5 to +10 on in normal mode. I only use normal mode to hover and slow forward flight, only. Take off and landings or done in Normal(except for autos), all of my flying around is done in Idle 2.

Go to Raptor technique as recommend by BarracudaHockeyto set up you flight modes.

Keep up the good flying.
Old Guys Rule!
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08-07-2007 10:31 AM  13 years ago
Heliburg

rrNovice

New Zealand

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Thanks for all the above information guys, I forgot about this post, I must have typed it out late one night. Went for a flight today after 2 weeks of bad weather finally moved on, was cold on the hands but I am trying to fly at least 3 days a week at the moment, so may just have to tough it out.

I will have a browse over at RaptorTechnique and along with the help you have offered above, I will do some mild tuning on the Tx and see how the changes relate to the heli on the field.

I'm not quite into fast forward flight, as Pistol Pete recomended, I've been keeping the heli low, and concentrating on orientation and angles, I was amazed once starting to do figure 8s just how easy it is to miss interpret which way the heli is rolling when flying past. I also figured that it helps a great deal to have the canopy on to help with orientation!

Anyway, I will post an update back here in a while with some accurate numbers of what I have been using and what I progress onto and what feels right, thanks again, Shaun.

.
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