2 Stage Flaperons with Slow Up and Down

[fburden]

2 Stage Flaps with Slow.eepe

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Note: you can only put 1 mix with slow on a single channel, otherwise it won't really work properly. That is due to the math algorithim used.
Also notice the use of HALF in channel CH09.

Works Great!!

[Scott Page]

Just curious -- why use the three position switch? Am I missing something. Seems a two position switch would work as well.

[Kilrah]

Because it was the goal to have 3 steps with No flaps - A little flaps - Full flaps

[Scott Page]

Got ya. Make sense. silly me.

[Hal9000]

Thanks for this. I have spent most of this evening trying to find easy to understand instructions on how to program flaperons and your published picture was the easiest for me to understand.

I don't know how many videos I've watched where flaperons are shown in action but scant info on how to program them.

Cheers mate!

[minbari]

that works really well except for one thing. when you set either stage of flaps you offset the ailerons. this means that at 30% down flaps and full left or right AIL stick makes one aileron at 100% and the other one at -70%. that is 30% more aileron on one side than the other. that would create more drag on one side than the other, effectively giving you some unwanted rudder.
same for 50% flaps, just more severe

if you want to null that out you need to use triple D/R and a switch.

set AIL D/R for the following:

switch1: SW1, switch2: ID2
HIGH: 100%
MED: 70%
LOW: 50%

CSWITCH1: OR ID1 ID2

This will leave you with less aileron control, but it will not be asymmetrical.

[Rob Thomson]

A cool way I solved the same issue on a glider of mine was to apply negative differential to the ailerons.... That is relative to the amount of flap input given.

This was made really easy with open9x gvars functionality.

Sent from my Nexus 7 using Tapatalk 2

[ckleanth]

Hi all, I have a 5 channel a/c that I want to use 2 stage flaperons with lets say 5 sec delay for flaperon deployment.

from what I understood the templates above is for dedicated channel for flaps but I dont have that on my A/C, hence the need for flaperons..

I know how to do this on my dx8... have no idea how to do it on the 9x, only managed to setup the 5 channel and partial D/L and EXP.
on a side note the reason its partial D/L and EXP is because eepe is not saving my changes... anyone knows why? i tried the obvious close/restart the program approach but the problem is still there. could it be available memory on the chip? but I can still see spaces on my model memory.. dunno HELP!

anyway I'm using Spektrum channel assignment TAER with latest er9x and eepe on a windows 7 machine.

last also if anyone know how to setup a countdown timer when trottle is above 10% that would be great. thanks

[ckleanth]

anyone?

[ckleanth]

Today it was my "AHA! moment". silly me I got the information in the first post so wrong, but got there in the end.

I've setup the flaperons using the 3 stage switch and also setup a little negative elevator for the two positions.

I'm still not experienced with er9x, can some help when the servo reaches the boundaries to have symmetry of the control surfaces?
Basically when flaps is deployed and let’s say i have stick input to the left I want to limit the right side not to exceed the flap deployment percentage (if that makes sense)

[gohsthb]

I'm not sure what you are saying. With the flaps up, when you move the ailerons, they go the same amount both ways? Or when you have the flaps down you don't want the aileron to make the flaperon move further down, but the other one can come up?

-Gohst

[ckleanth]

the problem is when the servo reaches the end of operationa stroke. if you see my mixing screen ch2 and ch5 is my ailerons and with flaperons you shift both control surfaces by x amount but since the servo stoke is fixed the maximum movement for the contol surface is also fixed.

if you use the setup as is and for example if you have stick input to the right the servo on ch2 will reach the right operational boundary but servo on ch5 can still move to the opposite direction of ch2 since there is still stick movement avaiable. the opposite will happen if you have stick input on the left. basically when I apply flaperons I want the operational movement for the control surfaces to be limited in both directions by the percentage of deployed flaps.

[gohsthb]

So then if the aileron can't move any further down (because the flap already has it down) then the other aileron shouldn't move either? Won't you basically loose aileron control?

[ckleanth]

yep. obviously the flaperons cant be deployed 100% because a) aircraft will probably stall and b) I if there is a requirement to use ailerons I want the aircraft to roll alonng the x axis (if you assume x is along fuselage, y is verical tot he gorund and z perpendicular to fuselage). if the control surface movement is not symetrical the roll axis will be shifted outside the fuselage.
is this not logical?

[minbari]

If you go back and look at my post earlier in the thread you will see this exact problem. You need to use triple rates on the ail tied to the switch you use for flaperons.

This way you reduce the max ail by the amount of flaps and keep the ratio the same

Sent from my motorola electrify using digital farts

[ckleanth]

If you go back and look at my post earlier in the thread you will see this exact problem. You need to use triple rates on the ail tied to the switch you use for flaperons.

This way you reduce the max ail by the amount of flaps and keep the ratio the same

Sent from my motorola electrify using digital farts

well thats the bit I didnt get. is it possible to have a screen grab or a model to check it out? I'm still new to the er9x


on a side note I just realised that a stock 9xr has only one 3 position switch. on my dx8 I'm used to have all my d/l expo on a 3 posistion switch. is there a thread about swaping the 2 posisiton switch with a 3 position switch, can the er9x firmware and eepe suport the swap?
anyone with links to good 3 position switches ?

[Rob Thomson]

Have a read of this thread

viewtopic.php?f=26&t=498

The best way to do this is to swap a pot, for a 3pos with 2 resistors.

Rob

[ckleanth]

thanks Rob

[MikeB]

This can get confusing.
The expo and dual-rates are applied to the stick inputs to the mixer.
You can also set the weight to less than 100% to obtain less servo movement.

Now let me see if I understand your requirement.
0% flap - 100% aileron
20% flap - 80% aileron
40% flap - 60% aileron

Now, where do you want expo and dual rates involved? Do you need any aileron differential?

Simple version of the above, no slow function:
CH02: +100% AIL
CH02: R +80% AIL Switch(ID1)
CH02: -20% HALF Switch(ID1)
CH02: R +60% AIL Switch(ID2)
CH02: -40% HALF Switch(ID2)

Note the R (for replace) multiplex. So, with ID0 active you just have 100% aileron, with ID1, this is replaced by 80% aileron, with -20% flap added, and with ID2 active you get 60% aileron, with -40% flap added. Something similar on channel 5, with either the aileron or the flap weights set negative depending on your mechanical linkage.

If you want expo on the ailerons, you can set this seperately using whatever switche(s) you wish.

Mike.

[ckleanth]

hi mike, many thanks for your reply. yea you got the idea basically I wanted to assign exponential independently of the flaperons using the 3 way switch (ID 0,1,2) and assign flap deployment using a modified pot3 into a 3 way switch.

originally I was trying to limit servo throw when falperons was deployed using two curves but I didnt go anywhere with this...

your solution seems simpler but I must have done/programmed something wrong. see the flaperons.eepe and check what ch9 does, and what ch2 and ch5 follow

as when I tried to apply flaperons with pot3 mixing the servo was going back to the centre. not sure if its my pot3 mixing or the slow deployment that is the problem...

is my pot3 mixing for the three way switch ok?
can anyone help please?

[MikeB]

Try:
SW1: v>ofs P3 33
SW2: v<ofs P3 -33

CH09: +20% HALF Switch(!SW2) - defaults to 0%, add 20% flap in mid position
CH09: +20% HALF Switch(SW1) - add another 20% in top position
CH10: +100% CH09 Slow(u5:d5) - apply the slow operation

CH01: +100% AIL
CH01 R +80% AIL Switch(!SW2)
CH01 R +60% AIL Switch(SW1)
CH01 +100% CH10 - add in flap

Something similar on channel 5 depending on aileron/flap directions

Mike.

[ckleanth]

thanks mike, from your post I figured how to set it up as I wanted. many thanks