Pitch & Throttle Curves Explained

Imzzaudae · 05-03-2012, 10:49 AM

Throttle and pitch are controlled separately, But they are controlled buy the throttle stick at the same time!
2 channels driven by the throttle stick.
Throttle and collective / pitch control.

In the pitch curve section of your TX.

This example is a 3D pitch curve!

0 is full negative pitch. Lowest throttle stick position

25% is 1/2 negative pitch 1 quarter throttle stick position

50% is no pitch at all the blades are flat. This is mid stick position of throttle stick

75% is 1/2 positive pitch three quarter throttle stick position.

100% is full positive pitch. Highest throttle stick position

This example has no negative pitch. So the blades never go into reverse below mid stick.

50, 50, 50, 75, 100 has no negative pitch below mid stick the blades will be flat.
Above mid stick position the blades increase positive pitch.

50,50,50,50,50 has no pitch at all positive or negative the blades stay flat from minimum throttle stick position through full throttle position.

In this example, You will notice
L = 50% zero pitch Flat Blades
2 = 65% The blades begin positive pitch orientation much earlier, at or before ¼ throttle position instead of mid stick
3=70% Very gradual increse in pitch
4=75% Very gradual increse in pitch
H=80% Very gradual increse in pitch
This is a very soft feeling pitch curve sutable for newcomers to MCPX or normal mode fun flying
indoors or out as the pitch comes on very early and increases very slowly over ¾ of the collective stick rather than just the top ½

This is a suitable throttle curve for the above pitch curve

L = 0
2=40
3=60
4=80
H=100

Pitch Curve

L=50%
2=65
3=70%
4=75%
H=80%

How throttle curve works
You can program your DX6i so that the throttle operates in any manner you like.
Throttle Curve Menu
L is lowest throttle stick position motor off.
25% is ¼ throttle stick position
50% is ½ throttle stick position
75% is ¾ throttle stick position
H is full throttle stick position

You can assign any power setting to any throttle stick position.
Normal mode standard MCPX throttle curve.
L is lowest throttle stick position 0
25% is ¼ throttle stick position 40% power
50% is ½ throttle stick position 60% power
75% is ¾ throttle stick position 80% power
H is full throttle stick position 100% power

You can also do this.
In this throttle curve in normal mode in the throttle stick minimum position the motor is off.
But at the 25% position the throttle goes to 100% power and stays 100% up to full stick position.
L is lowest throttle stick position 0
25% is ¼ throttle stick position 100% power
50% is ½ throttle stick position 100% power
75% is ¾ throttle stick position 100% power
H is full throttle stick position 100% power

Use a pitch curve like this in normal mode with the above throttle curve 50, 50, 60, 70, 80
This pitch curve has no negative pitch below mid stick the blades will be flat. Above mid stick position the blades increase positive pitch. You control altitude using the pitch of the blades with the throttle / collective stick.

Stunt mode / Idle up

Stunt mode settings in the pitch curve menu and in the throttle curve menu operate when the idle up switch on the radio is in the on position.

In stunt or idle up mode the throttle curve is set at any given setting 100, 100 100, 100, 100
No matter where the throttle stick is when in idle up the motor will run at the assigned power setting in this case 100% all the time.

If you set the stunt mode power 80 80 80 80 80 in the stunt position throttle curve of the DX6i when you turn on the idle up switch the motor will run 80% no matter where the throttle stick position!

You control only the pitch of the blades with the throttle / collective stick.

An example of a 3D throttle and pitch curve would look like this.

0 is full negative pitch. Lowest throttle stick position

25% is 1/2 negative pitch 1 quarter throttle stick position

50% is no pitch at all the blades are flat. This is mid stick position of throttle stick

75% is 1/2 positive pitch three quarter throttle stick position.

H is full positive pitch. Highest throttle stick position

If the tail is blowing out on hard climb or pitch pumps. Go into the DX6i Travel adjust menu and lower the pitch setting from 75 by 2% at a time until the tail holds! Positive and negative!

Hold in the throttle curve menu of your DX6i
Set this 0 so when you hit the hold switch you want the power cut off to the helicopter motor.
No matter where the throttle stick position!

In the pitch curve menu of your DX6i I set Hold at 50 50 50 50 50 so no matter where your
throttle stick the blades go flat zero pitch. When the hold switch is activated.
This helps not break parts in a crash. Others set 0/25/50/75/100.

Soft start feture on MCPX.
For those not formilier with soft start. You can turn on I/U when the helicopter is sitting on the ground.
The tail rotor will start then the main motor will slowly spool up to 100%.

Turn on Dx6i
Plug in helicopter
Let them bind.
Switch on Idle up switch, then move throttle stick to mid stick position so the blades are flat for spool up.

After flying move throttle stick to lowest positition befor switching off Idle Up switch.

You can also switch between idle up mode and normal mode in flight.

rleary360 · 05-03-2012, 11:05 AM

On the dx6i TH setting is in %. You need to put it at 10% or blades could spin when TH is turned off and throttle stick is still at lowest pos. And in TH you should keep your pitch at 0 25 50 75 100 this way you can still control your pitch when TH is on.

Sent from my SGH-T959V using Tapatalk 2

Imzzaudae · 05-03-2012, 11:13 AM

I had forgotten the 10% on the throttle hold switch on MCPX. I did go back and correct the error in the above post.

Thanks for pointing it out ! I hate giving bad information.
Ron

"SUPER-STROKER" · 05-03-2012, 11:14 AM

Just a little tip from Kevin at KBDD, since we will not be auto-ing our MCPX we should turn our TH pitch to FLAT Zero to eliminate boom strikes that are so damaging to blades on the trailing edge. If a blade is - pitch and folds, Boom strike, not advisable on bigger birds because we auto them but for an MCPX this is a great tip!

Danny H.

rleary360 · 05-03-2012, 11:16 AM

Quote:

Originally Posted by "SUPER-STROKER"

Just a little tip from Kevin at KBDD, since we will not be auto-ing our MCPX we should turn our TH pitch to FLAT Zero to eliminate boom strikes that are so damaging to blades on the trailing edge. If a blade is - pitch and folds, Boom strike, not advisable on bigger birds because we auto them but for an MCPX this is a great tip!

Danny H.

Lol my bad! Didnt notice the forum

Sent from my SGH-T959V using Tapatalk 2

rleary360 · 05-03-2012, 11:22 AM

Quote:

Originally Posted by Imzzaudae

I had forgotten the 10% on the throttle hold switch on MCPX. I did go back and correct the error in the above post.

Thanks for pointing it out ! I hate giving bad information.
Ron

Im glad you put this up cuz im going to buy one tomoro

Sent from my SGH-T959V using Tapatalk 2

Imzzaudae · 05-03-2012, 11:26 AM

I have been trying to figure out

why my MCPX blades are cracked on the trailing edge. I'm going to have to smack my nephew and tell him to stop landing so hard!
Never thought of it!

What an MCPX?

Liduno · 05-03-2012, 11:28 AM

I'm confused about the 10% in T/H, why wouldn't you want it at 0%?

UKHeliBob · 05-03-2012, 11:30 AM

Quote:

Originally Posted by Imzzaudae

I had forgotten the 10% on the throttle hold switch on MCPX. I did go back and correct the error in the above post.

Thanks for pointing it out ! I hate giving bad information.
Ron

Can you please explain the 10% on Throttle Hold stuff ? I have never come across this before and cannot locate it in the manual. What are you suggesting is set to 10% ?

Imzzaudae · 05-03-2012, 11:38 AM

I just looked in both manuals, It's the B450 that requires 10% setting in throttle hold menu not the MCPX, I should have looked before making the correction.
Sorry guys I will go back and correct this and will be more carful in the future when posting.

I'm supposed to know what I'm talking about here.

UKHeliBob · 05-03-2012, 12:04 PM

To be fair, it was not you that made the 10% suggestion.

Liduno · 05-03-2012, 12:17 PM

Quote:

Originally Posted by Imzzaudae

I just looked in both manuals, It's the B450 that requires 10% setting in throttle hold menu not the MCPX, I should have looked before making the correction.
Sorry guys I will go back and correct this and will be more carful in the future when posting.

I'm supposed to know what I'm talking about here.

I have 450 electronics in my 400, I'm going to have to do some research.

I don't have my radio here but I'm pretty sure I have mine set to 0% on T/H, might need to change it to 10%.

My guess is it's suggested for auto landing.

Metal · 05-03-2012, 05:36 PM

I coulda used a post like this about 3 months back.

I vote sticky!

stablehover · 05-03-2012, 06:06 PM

Hey Ron just listen to yourself. When it comes to setup and radio advice with the MCPX your word is golden. I direct to your posts when people have questions. I wish I had your info when I started. I did not and I have the parts count to prove it. I fooled with your setups all last winter and literally learned to fly my heli. I am so ready for the 130 and 300. I really do not have intrest in a 450 at this time. My yard allows easy flight for smaller craft so be it. Rock on my friend. Keep up the good work.

supermarvin76 · 05-03-2012, 08:55 PM

I have been struggling to grasp this concept. This thread just made it click in my head. Great work. THANK YOU!

Imzzaudae · 05-03-2012, 11:44 PM

Thank you all for your understanding and feedback is always welcome.
It is sure nice to turn on my computer and find that my posts actually do help people.
You guys are all great!

Stablehover: I also learned at the school of many broken parts. Thanks for the thumbs up!
I'm also looking forward to the 130X I don't think I will bother with the 300 this year maybe next
year. Although I do enjoy flying my B450 like many others I have found myself leaning towards MCPX.
Great school yard heli.

Ron

greyhoundfan · 05-09-2012, 10:13 PM

I'm getting into MCPx flying too.. great and helpful post!!

budweisr33 · 05-13-2012, 11:49 PM

Makes sense now. Thank you.

rleary360 · 05-19-2012, 03:12 PM

I finaly got one....i binded to dx6i but i have no throttle. What all settings do ya use?

Sent from my SGH-T959V using Tapatalk 2

Mini Tmaxx · 05-19-2012, 03:51 PM

Check out this link. It will get ya setup.
http://www.helifreak.com/showthread....58#post3854858

05-03-2012, 10:49 AM	#1
Imzzaudae Registered Users My HF Map location Join Date: Nov 2011 Location: Ontario Canada	Pitch & Throttle Curves Explained Throttle and pitch are controlled separately, But they are controlled buy the throttle stick at the same time! 2 channels driven by the throttle stick. Throttle and collective / pitch control. In the pitch curve section of your TX. This example is a 3D pitch curve! 0 is full negative pitch. Lowest throttle stick position 25% is 1/2 negative pitch 1 quarter throttle stick position 50% is no pitch at all the blades are flat. This is mid stick position of throttle stick 75% is 1/2 positive pitch three quarter throttle stick position. 100% is full positive pitch. Highest throttle stick position This example has no negative pitch. So the blades never go into reverse below mid stick. 50, 50, 50, 75, 100 has no negative pitch below mid stick the blades will be flat. Above mid stick position the blades increase positive pitch. 50,50,50,50,50 has no pitch at all positive or negative the blades stay flat from minimum throttle stick position through full throttle position. In this example, You will notice L = 50% zero pitch Flat Blades 2 = 65% The blades begin positive pitch orientation much earlier, at or before ¼ throttle position instead of mid stick 3=70% Very gradual increse in pitch 4=75% Very gradual increse in pitch H=80% Very gradual increse in pitch This is a very soft feeling pitch curve sutable for newcomers to MCPX or normal mode fun flying indoors or out as the pitch comes on very early and increases very slowly over ¾ of the collective stick rather than just the top ½ This is a suitable throttle curve for the above pitch curve L = 0 2=40 3=60 4=80 H=100 Pitch Curve L=50% 2=65 3=70% 4=75% H=80% How throttle curve works You can program your DX6i so that the throttle operates in any manner you like. Throttle Curve Menu L is lowest throttle stick position motor off. 25% is ¼ throttle stick position 50% is ½ throttle stick position 75% is ¾ throttle stick position H is full throttle stick position You can assign any power setting to any throttle stick position. Normal mode standard MCPX throttle curve. L is lowest throttle stick position 0 25% is ¼ throttle stick position 40% power 50% is ½ throttle stick position 60% power 75% is ¾ throttle stick position 80% power H is full throttle stick position 100% power You can also do this. In this throttle curve in normal mode in the throttle stick minimum position the motor is off. But at the 25% position the throttle goes to 100% power and stays 100% up to full stick position. L is lowest throttle stick position 0 25% is ¼ throttle stick position 100% power 50% is ½ throttle stick position 100% power 75% is ¾ throttle stick position 100% power H is full throttle stick position 100% power Use a pitch curve like this in normal mode with the above throttle curve 50, 50, 60, 70, 80 This pitch curve has no negative pitch below mid stick the blades will be flat. Above mid stick position the blades increase positive pitch. You control altitude using the pitch of the blades with the throttle / collective stick. Stunt mode / Idle up Stunt mode settings in the pitch curve menu and in the throttle curve menu operate when the idle up switch on the radio is in the on position. In stunt or idle up mode the throttle curve is set at any given setting 100, 100 100, 100, 100 No matter where the throttle stick is when in idle up the motor will run at the assigned power setting in this case 100% all the time. If you set the stunt mode power 80 80 80 80 80 in the stunt position throttle curve of the DX6i when you turn on the idle up switch the motor will run 80% no matter where the throttle stick position! You control only the pitch of the blades with the throttle / collective stick. An example of a 3D throttle and pitch curve would look like this. 0 is full negative pitch. Lowest throttle stick position 25% is 1/2 negative pitch 1 quarter throttle stick position 50% is no pitch at all the blades are flat. This is mid stick position of throttle stick 75% is 1/2 positive pitch three quarter throttle stick position. H is full positive pitch. Highest throttle stick position If the tail is blowing out on hard climb or pitch pumps. Go into the DX6i Travel adjust menu and lower the pitch setting from 75 by 2% at a time until the tail holds! Positive and negative! Hold in the throttle curve menu of your DX6i Set this 0 so when you hit the hold switch you want the power cut off to the helicopter motor. No matter where the throttle stick position! In the pitch curve menu of your DX6i I set Hold at 50 50 50 50 50 so no matter where your throttle stick the blades go flat zero pitch. When the hold switch is activated. This helps not break parts in a crash. Others set 0/25/50/75/100. Soft start feture on MCPX. For those not formilier with soft start. You can turn on I/U when the helicopter is sitting on the ground. The tail rotor will start then the main motor will slowly spool up to 100%. Turn on Dx6i Plug in helicopter Let them bind. Switch on Idle up switch, then move throttle stick to mid stick position so the blades are flat for spool up. After flying move throttle stick to lowest positition befor switching off Idle Up switch. You can also switch between idle up mode and normal mode in flight. __________________ Ron Petrolia Ontario CX2,MCX2,MSR,120SR,Rescue Heli,MCPX,MCPX-bl, B450 DX6i Now building a Hirobo shuttle 30 size To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Last edited by Imzzaudae; 05-14-2012 at 10:25 AM..

05-03-2012, 11:13 AM	#3
Imzzaudae Registered Users Thread Starter My HF Map location Join Date: Nov 2011 Location: Ontario Canada	Thanks I had forgotten the 10% on the throttle hold switch on MCPX. I did go back and correct the error in the above post. Thanks for pointing it out ! I hate giving bad information. Ron __________________ Ron Petrolia Ontario CX2,MCX2,MSR,120SR,Rescue Heli,MCPX,MCPX-bl, B450 DX6i Now building a Hirobo shuttle 30 size To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

05-03-2012, 11:26 AM	#7
Imzzaudae Registered Users Thread Starter My HF Map location Join Date: Nov 2011 Location: Ontario Canada	Funny thing I have been trying to figure out why my MCPX blades are cracked on the trailing edge. I'm going to have to smack my nephew and tell him to stop landing so hard! Never thought of it! What an MCPX? __________________ Ron Petrolia Ontario CX2,MCX2,MSR,120SR,Rescue Heli,MCPX,MCPX-bl, B450 DX6i Now building a Hirobo shuttle 30 size To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

05-03-2012, 11:28 AM	#8
Liduno Registered Users Join Date: Jan 2012 Location: West Palm Beach Florida	I'm confused about the 10% in T/H, why wouldn't you want it at 0%? __________________ B400 130X MCPX MSRX 120 SR MSR MCX IF IT CAN'T BE FIXED WITH DENTAL FLOSS, THEN IT CAN'T BE FIXED.

05-03-2012, 11:38 AM	#10
Imzzaudae Registered Users Thread Starter My HF Map location Join Date: Nov 2011 Location: Ontario Canada	OK I just looked in both manuals, It's the B450 that requires 10% setting in throttle hold menu not the MCPX, I should have looked before making the correction. Sorry guys I will go back and correct this and will be more carful in the future when posting. I'm supposed to know what I'm talking about here. __________________ Ron Petrolia Ontario CX2,MCX2,MSR,120SR,Rescue Heli,MCPX,MCPX-bl, B450 DX6i Now building a Hirobo shuttle 30 size To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

05-03-2012, 11:05 AM	#2
rleary360 Registered Users Join Date: Mar 2012 Location: alabama	On the dx6i TH setting is in %. You need to put it at 10% or blades could spin when TH is turned off and throttle stick is still at lowest pos. And in TH you should keep your pitch at 0 25 50 75 100 this way you can still control your pitch when TH is on. Sent from my SGH-T959V using Tapatalk 2

05-03-2012, 11:14 AM	#4
"SUPER-STROKER" Registered Users Join Date: Feb 2012 Location: Lone Star State, U.S.A.	Just a little tip from Kevin at KBDD, since we will not be auto-ing our MCPX we should turn our TH pitch to FLAT Zero to eliminate boom strikes that are so damaging to blades on the trailing edge. If a blade is - pitch and folds, Boom strike, not advisable on bigger birds because we auto them but for an MCPX this is a great tip! Danny H.

05-03-2012, 12:04 PM	#11
UKHeliBob Registered Users My HF Map location Join Date: Aug 2011 Location: UK	To be fair, it was not you that made the 10% suggestion.

05-03-2012, 05:36 PM	#13
Metal Registered Users Join Date: Feb 2012 Location: Longview, Washington	I coulda used a post like this about 3 months back. I vote sticky! __________________ Draganflyer IV - mCX - mSR X - mCPX v2 - DX8 - iCharger 206B

05-03-2012, 06:06 PM	#14
stablehover Registered Users Join Date: Mar 2011 Location: usa	Hey Ron just listen to yourself. When it comes to setup and radio advice with the MCPX your word is golden. I direct to your posts when people have questions. I wish I had your info when I started. I did not and I have the parts count to prove it. I fooled with your setups all last winter and literally learned to fly my heli. I am so ready for the 130 and 300. I really do not have intrest in a 450 at this time. My yard allows easy flight for smaller craft so be it. Rock on my friend. Keep up the good work.

05-03-2012, 08:55 PM	#15
supermarvin76 Registered Users Join Date: Nov 2011 Location: Rockford, IL	I have been struggling to grasp this concept. This thread just made it click in my head. Great work. THANK YOU! __________________ DX6i MQX mCPX V1

05-03-2012, 11:44 PM	#16
Imzzaudae Registered Users Thread Starter My HF Map location Join Date: Nov 2011 Location: Ontario Canada	Thank you all Thank you all for your understanding and feedback is always welcome. It is sure nice to turn on my computer and find that my posts actually do help people. You guys are all great! Stablehover: I also learned at the school of many broken parts. Thanks for the thumbs up! I'm also looking forward to the 130X I don't think I will bother with the 300 this year maybe next year. Although I do enjoy flying my B450 like many others I have found myself leaning towards MCPX. Great school yard heli. Ron __________________ Ron Petrolia Ontario CX2,MCX2,MSR,120SR,Rescue Heli,MCPX,MCPX-bl, B450 DX6i Now building a Hirobo shuttle 30 size To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Last edited by Imzzaudae; 05-04-2012 at 02:15 PM..

05-09-2012, 10:13 PM	#17
greyhoundfan Registered Users Join Date: Mar 2012 Location: USA, CA	I'm getting into MCPx flying too.. great and helpful post!!

05-13-2012, 11:49 PM	#18
budweisr33 Registered Users My HF Map location Join Date: Mar 2012 Location: Mi	Makes sense now. Thank you.

05-19-2012, 03:12 PM	#19
rleary360 Registered Users Join Date: Mar 2012 Location: alabama	I finaly got one....i binded to dx6i but i have no throttle. What all settings do ya use? Sent from my SGH-T959V using Tapatalk 2

05-19-2012, 03:51 PM	#20
Mini Tmaxx Registered Users My HF Map location Join Date: Apr 2012 Location: Ankeny, IA	Check out this link. It will get ya setup. http://www.helifreak.com/showthread....58#post3854858 __________________ Blade 450 3D, Blade 120SR, Blade MQX, Blade MCX2, Blade Scout, Heli-Max 1sq Quad, Griffin Heli, DX6I DSMX w/ blue backlighting.

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