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Help with Raptor 30 pitch settings

skytrekin

Senior Heliman

Glendale, AZ

Hello,
I have a Raptor with a OS .32 It runs good and I can tail in hover and some figure 8 circuits. I have it set up with a pitch gauge and the on board gauge to 0 degrees at mid stick.
When I goto idle up I have about 80% throttle at the bottom of the V throttle curve. It sounds good hovering, and even transitioning to FF, but when I make a turn or carve the turn I guess I can hear it bog as it loads up under pressure.
How much pitch can a Raptor with a OS 32 handle? I'm using 15% wildcat fuel with wood blades. Thinking of trying the Byron heli 30% to see if I can get more performance, or just realize its only a 32 and just manage the load it can handle. I still have a long way to go as far as being comfortable with it, but wish I had a tad more power. My next heli will be bigger with more power maybe a trex 600 npro with a OS 55HZ
The video with Bert flying one was impressive! That motor sounded great!

10-05-2009 Over year old.
Gyronut

rrProfessor

Martinsville In.

I had mine running on 30% and it flew very well.

Yes its going to bog down but you can still throw it around some.

10 deg of pitch is just about all it can handle though.

Good luck.

Rick

10-05-2009 Over year old.
TachyonDriver

Key Veteran

Chipping, Lancs, UK

80% at the bottom of the V curve sounds awfully high - what's the headspeed at that setting?

reason I ask is that my Rappy 30 powered by a TT 36 pro is only running about 45-50% at hover and it's tach'd at around 1900 rpm. Be careful using woodies and plastic grips...


Tach.

Little Spinning Bundle of Joy® DON'T DISS THE DINO!!

10-05-2009 Over year old.
skytrekin

Senior Heliman

Glendale, AZ

Thanks for your reply I believe 80% was pretty high and I turned it down at the first hover in idle up. I think I was trying to get rid, or lessen the bog when you really get on it. I guess I can try 30% fuel and live with the heli the way it is.
The 450 size heli seems to have way more power, I guess I just figured the rappy would too.

10-06-2009 Over year old.
ruddernate

Key Veteran

sulphur,Ok.

from my experience it's not so much more power but power delivery. the 30 requires more collective management than a 450 electric (or any electric for that matter). it's like the difference in a four stroke dirt bike or a 2 stroke. it's all in the power delivery. what kind of throttle curves are you flying with? if you're at 0 pitch at mid stick you may be ok pitch wise and have an off throttle curve. just a thought.

fly it like you stole it

10-06-2009 Over year old.
midwestpilot

Elite Veteran

Crystal Lake, IL

Do you happen to know your head speed?

Is there any experienced pilots around to help you? Maybe one with a "sky tach"... or an experienced pilot might be able to hear if you are in the right rpm range.. close enough anyway.

In life there is no spacebar!

Rich Erikson AMA 6175

10-06-2009 Over year old.
HOMEPAGE  
wws2010

Senior Heliman

La Cresenta, California - United States

I had one with the same setup, I wouldn't run more then 9

10-07-2009 Over year old.
ROGER543

Veteran

bristol ct usa

set idle 2 to 100% all the way through, yes it will drink more fuel but you will have awsome head speed and the moter will bog down less, another thing you can do is turn your pitch down 5% less than your throtal curve and that will let your engine catch up. I found the link on raptortechnique can't rember where but in one of there links. That how i have mine setup and have almost as much pop as a 50. A 30 has to be flown and stick banging will not work ( but thats a good thing)

10-08-2009 Over year old.
wws2010

Senior Heliman

La Cresenta, California - United States

Uh, dont run your headspeed that high, 100 percent will overspeed the engine!

10-08-2009 Over year old.
David Blain

Key Veteran

Mt. Dora, Florida (USA)

Never mind your running wood blades....
SAFETY FIRST, Find someone to tach the head and adjust from there!

David Blain
T.O.R.C.H.S. Orlando Member

10-08-2009 Over year old.
skytrekin

Senior Heliman

Glendale, AZ

Its been raining these last few days. Im sure ive turned down the speed from 80%
I need to try some actual heli fuel 30% Do you guys use Bryon or just user preference?
I guess I need to find a sky tach and see what I am actually running.
Can you use a airplane tach and point it in the sky at it?

10-08-2009 Over year old.
TachyonDriver

Key Veteran

Chipping, Lancs, UK

I use Propower 16% heli fuel FWIW.

When we tach'd my Rappy's headspeed we placed the optical tach on the ground to one side of the heli, but still pointing up through the blades (propped it up with a brick). My friend read the display whilst I got the rappy light on it's skids/hovering as best I could a couple of inches off the deck.

Tach.

Little Spinning Bundle of Joy® DON'T DISS THE DINO!!

10-11-2009 Over year old.
ROGER543

Veteran

bristol ct usa

i use coolpower 15% and i don't complain, just depends what your doing. Most of my flights are in idle 1 and when i want to get crazy i'll use idle 2. I think i tach out at 1950 with throtal at 100% other wise i fly at 1800 to 1850 in idle 1 with decent flight times. your raptor 30 will do it all just slower.

10-11-2009 Over year old.
dbldins

Veteran

Danville,Ky.

I run 15% as well. I run just fine. Getting the sweet spot in the carb makes a lot of difference. I just solved similar prob by leaning out. Mine would bog and die on quick climb. Worth lookin at.

I'm addicted to flying! Seriously!! I need rehelihab!

10-12-2009 Over year old.
garaptor

Senior Heliman

Atlanta,Ga,usa

A Raptor 30 class with a 32 cant pull more than about 9 or 10 degrees even if its pulling 100% throttle at full pitch. It will sound like its bogging but its normal.Just keep the headspeed down to about 1900 at throttle up hover.Maybe 2000 with carbons if everything is balanced. Sounds like its screaming then anyway. I fly 15% and its fine unless you go extreme.

10-13-2009 Over year old.
HOMEPAGE  
skytrekin

Senior Heliman

Glendale, AZ

Thanks for all the reply's I did get a set of carbon blades, but the tracking is a little off. I didn't get to try it with them on because I wanted to get the tracking fixed first. Then of course more rain here.
I have a old nexus with the same OS 32 and it doesn't seem to bog in turns as much as the Raptor. I guess I can try check the mixture on the nexus and see how different it is to the Raptor.

10-15-2009 Over year old.
Aaron29

Elite Veteran

USA

I had about 8.5 when I had an OS 32. You can bog ANY heli if you move the stick a lot, but 8.5 was a pretty good overall setting.

Also, make you you have a cyclic to throttle mix. That way, when you load the disk by adding aileron or elevator it gives a little power.

On something like a 32 I'd start with AIL-THROTTLE mix of 25 and ELEV-THROTTLE mix of 25. Make sure the throttle arm adds power with cyclic movements.

10-17-2009 Over year old.
skytrekin

Senior Heliman

Glendale, AZ

I got a set of carbon blades and WOW what a difference!

I had to keep adjusting my throttle settings and turning them down down down
Also the gyro started wagging the tail, and I had to turn that down as well.
Now I think im at around 50% at the bottom of the V in idle 1 and in turns it doesnt seem to bog hardly at all unless you really pull on it.
Thanks for the cyclic to throttle mix.. I gotta try that

10-19-2009 Over year old.
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Help with Raptor 30 pitch settings

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