RunRyder RC
 4  Topic Subscribe
WATCH
 1 page 823 views
Scorpion Power Scorpion Power
HelicopterScale Model RC Helicopters › Minimum pitch angles for Bell 222
01-03-2011 02:25 AM  6 years agoPost 1
jmb2232

rrApprentice

League City, TX

My Posts: All  Forum  Topic

Just wondering what the consensus is for the minimum pitch angles for this Raptor electric conversion Bell 222. Running a Z-Power Z50T 600kV motor on 10S. I only get about 3 degrees negative before the collective pitch arm starts contacting the top of the "cowling". I can "squeeze" another 2 degrees out of it if I let it really push the top, but you can hear the servo buzzing by that time. The range I can comfortably get is about -3 to +9. Will this be enough for flying around in a somewhat scale manner? Thanks.

Michael B.

Watch this!!! THWACK!!! Honey, where's the checkbook?

PM  EMAIL  GALLERY  Attn:RR  Quote
01-03-2011 03:45 AM  6 years agoPost 2
JestRR

rrVeteran

Florence, Oregon

My Posts: All  Forum  Topic

Thats totally acceptable. Only thing is you might not get a lot out of a flair in an auto situation but that will get you flying around easily and in a scale manner. dont need nothin fancy for scale.

Mike Spinner
Florence OR
SCALE JUNKIE!!
NORTHWEST SCALEWORKS

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
01-03-2011 02:21 PM  6 years agoPost 3
jmb2232

rrApprentice

League City, TX

My Posts: All  Forum  Topic

Thanks for the reply. As a follow up question --- since I will have so little negative pitch is it acceptable to not have mid-stick as zero pitch as we set up our pod and boom helis? How are the pitch curves usually set up on a scale bird since we are not worried about setting symmetric angles like -12 to +12 degrees? Thanks.

Michael B.

Watch this!!! THWACK!!! Honey, where's the checkbook?

PM  EMAIL  GALLERY  Attn:RR  Quote
01-03-2011 03:08 PM  6 years agoPost 4
BarracudaHockey

rrMaster

Jacksonville FL

My Posts: All  Forum  Topic

Depends entirely on how you want to fly it. I dont find any heart ache going back and forth between 3D setups and scale setups (1/2 vs 3/4 stick hover), you just put the stick where you need it to fly, but some folks think they have to relearn to fly if you change hover stick position. Personally, I just up the collective till it takes off

You know, if you have the metal pitch arm I dont think that interference will be an issue. You can also cut the pitch arm back to where the link goes in the 3D setting. If you have it set for beginner, move the ball back to 3D and adjust pitch through your curves, that will give you more pitch change with less pitch arm movement.

Andy
AMA 77227
http://www.jaxrc.com

PM  EMAIL  GALLERY  Attn:RR  Quote
01-03-2011 03:59 PM  6 years agoPost 5
iHover

rrVeteran

Berne , NY

My Posts: All  Forum  Topic

I run -3 at the bottem +5 mid stick and +10 on all my scale birds. I picked it up from Doorman when I started flying scale. Its worked well for me. It hovers at 1/2 stick and gives me good resolution on the positive pitch.

You had me at Hover

PM  EMAIL  GALLERY  Attn:RR  Quote
01-03-2011 05:20 PM  6 years agoPost 6
jmb2232

rrApprentice

League City, TX

My Posts: All  Forum  Topic

The pitch arm definitely is not metal and I'm pretty sure that the original builder has cut back the pitch arm with the link in the F3C/3D position. I think the problem is that when I switched to the Align head, I lost some pitch travel at the expense of arm movement. I am using the Raptor washout arms on the Align washout base, btw. Maybe I should have left well enough alone.

So if I decide to stick with the Align head and set -3,+5,+10, or any asymmetric pitch curve for that matter, do I still need to "obey" having all the arms in the head horizontally lined up at zero pitch? I was thinking that I could just force the pitch to say -4 at the point where the collective pitch arm just comes in contact with the cowl by adjusting the links and see what my positive pitch turns out to be. Looks like I can achieve a total pitch range of 13 degrees so theoretically -3 to +10 could work. Would I be opening up a can of worms here by doing it this way?

Michael B.

Watch this!!! THWACK!!! Honey, where's the checkbook?

PM  EMAIL  GALLERY  Attn:RR  Quote
01-04-2011 03:41 AM  6 years agoPost 7
JestRR

rrVeteran

Florence, Oregon

My Posts: All  Forum  Topic

well for me, i set everything to 90 deg and mechanically set the rods to get 5 or 6 pos pitch. that way everything is centered when you hover. I'm not a 3D guy but dont they normally set that to 0 deg pitch??

Mike Spinner
Florence OR
SCALE JUNKIE!!
NORTHWEST SCALEWORKS

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
01-04-2011 01:07 PM  6 years agoPost 8
BarracudaHockey

rrMaster

Jacksonville FL

My Posts: All  Forum  Topic

Yep.

But symetrical pitch response from top to bottom isn't what the scale side is after, atleast there's no real reason for it.

Bottom line, set it up how you're comfortable flying it.

Andy
AMA 77227
http://www.jaxrc.com

PM  EMAIL  GALLERY  Attn:RR  Quote
01-04-2011 02:48 PM  6 years agoPost 9
munkey nuts

rrApprentice

wales uk

My Posts: All  Forum  Topic

i get the washout, mixer arms (not sure what they are called.)
i fly -4 degrees to +9, the difference between these two is 13 degrees. half of that =6.5, which is 2.5 degrees. thats what i set the blades to when every thing is level. i adjust the lenghts of the rods to accomplish this.

PM  EMAIL  GALLERY  Attn:RR  Quote
01-04-2011 07:15 PM  6 years agoPost 10
jmb2232

rrApprentice

League City, TX

My Posts: All  Forum  Topic

Thanks for the replies! Looks like when you're talking "scale" setup you just do what it takes to get the heli airborne comfortably and fly the thing. Sounds good to me. I've been putting too much thought into this setup. I just need to go flying so I can get that grin back on my face.

Michael B.

Watch this!!! THWACK!!! Honey, where's the checkbook?

PM  EMAIL  GALLERY  Attn:RR  Quote
01-08-2011 08:13 PM  6 years agoPost 11
jmb2232

rrApprentice

League City, TX

My Posts: All  Forum  Topic

Following up here to say that I decided to put the Raptor head back on the thing as I'm positive I lost some pitch range with the Align one. I am now able to achieve -4 degrees pitch at low stick with minimal contact (no servo stall) between the pitch arm and the top of the cowling. I set my upper pitch to be +10. The washout arms are level at mid-stick which translated to a pitch of +3 since I chose to go with a linear pitch curve. We'll see how this goes. Thanks again for all the help!
Michael B.

Watch this!!! THWACK!!! Honey, where's the checkbook?

PM  EMAIL  GALLERY  Attn:RR  Quote
01-08-2011 08:48 PM  6 years agoPost 12
BarracudaHockey

rrMaster

Jacksonville FL

My Posts: All  Forum  Topic

I had to read back over all of your posts and never saw anything about a trex head! LOL

Now I understand what was going on. Shoulda mentioned that sooner

Andy
AMA 77227
http://www.jaxrc.com

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 823 views
Scorpion Power Scorpion Power
HelicopterScale Model RC Helicopters › Minimum pitch angles for Bell 222
 Print TOPIC  Make Suggestion 

 4  Topic Subscribe

Tuesday, November 21 - 6:28 am - Copyright © 2000-2017 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online