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HomeAircraftHelicopterThunder TigerRAPTOR 50 › From concept 30DX to Raptor 50
03-08-2008 03:40 AM  10 years agoPost 1
Badllarma

rrApprentice

North West UK

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Ok I'm retiring my concept as the parts are a swine to find and I've a Raptor 50 I want to start playing with

Right my first flight lasted about 20 seconds and I had a boom strike with the Rappy so going back to basics are the learner pitch settings 0 to +4 the ideal starting point or should I add -1 or so to the bottom end? I want this thing as docile as I can get it to be honest.

The whole reason for having it is to lugg up camera so I'm not intrested in any 3D setup etc.. just something to go up hover and come down with a little forward filght as well.

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03-08-2008 04:35 AM  10 years agoPost 2
Lamar Cooley

rrApprentice

Houma,La.,U.S.A.

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docile Rap 50
Badllarma,
First of all, I would recommend checking out "raptortechnique".
Mr. Mike Prewitt has an excellent site about raptors.
His recommendation for starting out is -3 or -4 at the bottom to +9
at the top.
At your point.
I believe you would want to hover at 50% throttle with +5 to +5.5.
In forward flight you will need to add throttle and collective as you make the turn to maintain altitude. Along with the proper amount of rudder( to turn the nose), aileron ( to bank the turn, not too much) and elevator ( up, to bring it around) . A "co-ordinated" turn.
You might also like to check out "littlerotors".
This is another excellent site.
I hope this is of some small help.
Regards


Here when wanted.
There when needed.
Everywhere when looked for.

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03-08-2008 04:35 AM  10 years agoPost 3
jschenck

rrProfessor

La Vista, NE.

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If you are past the throttle chop instinct (that is, not doing that) I'd suggest a bare minimum of -4 on the bottom. Any less and it may not want to come down without loosing too much headspeed as you'd be at idle to get 0 pitch if that was set to be minimum. I think a good AP setup is -6 at the bottom and +12 at the top. If you need to soften the middle use some expo.

Also you may want to add a couple of brass wheel collars to the flybar near the paddles. The extra weight will soften the cyclic. about 6 deg cyclic should be plenty, once again some expo will help.

Try about 1600-1700 RPM. Lower headspeed will make a big difference. Set the same pitch curve in all settings and adjust your throttle curve for the different flight modes to raise and lower the HS. Best setup will giuve you a constant HS in a given flight mode through out the pitch curve i.e. 1550 norm, 1650 IDLE1, 1750 IDLE2 from hover to full throttle.

I've flown as low at 1400 RPM, gets really mushy there but I think it's kind of fun doing lazy figure 8's 10' off the ground with it burpling along. BUT I also have some throttle mixed into cyclic so 1400 didn't fall off when turning. I wouldn't recommend going this low HS since it leaves very little margin for getting out of trouble if you flame out or jam the sticks in the corners.

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03-08-2008 07:38 AM  10 years agoPost 4
Badllarma

rrApprentice

North West UK

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cheers for the info guys just need the weather now, not very goo din the UK at present

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