swash plate settings

[JIMKID MOTORSPORTS]

with a7 channel spectrum and a 450 trex do i set the swash plate up for 3 servos thanks inadvance

[DavidH]

Yes 3 servo 120 deg eCCPM.

David

[JIMKID MOTORSPORTS]

thanks dave

[Danal Estes]

Depends on the model of Trex 450. There are "conventional" ones out there (I had one). Assuming it is a CCPM trex, yes, you want 120 degree CCPM. See the DX7 manual for channel assignments.

[JIMKID MOTORSPORTS]

when i set it on that it is moving the two front servos at the same time

[Danal Estes]

Yes! This is correct for CCPM. "Aileron" inputs move the two front (opposite each other), "Elevator inputs" move the the back opposite the two front which move together, and "collective" (left stick on a mode 2 radio) inputs move all three together in the same direction.

[JIMKID MOTORSPORTS]

Thanks guys newbie to this radio and heli

[pyroo83]

is it "3 servo 90 deg" on a caliber 5?

[Danal Estes]

is it "3 servo 90 deg" on a caliber 5?

First, 3 servo 90 eCCPM is EXTREMELY rare. Still a choice in lots of radios, but almost unheard of in the real world.

Second, from the best descriptions and photos I can find of the Caliber 5, it appears to be a mechanical mix, not eCCPM at all. Set up the swash as conventional in the DX7.

Take the above with a small grain of salt, as I've never seen a C5 in person... but again, from the available info, it's conventional.

On a DX7, this is "1 servo norm". 1 servo may sound wrong to you... they really mean "1 servo per function, ail, elev, pitch" which is a perfect description of the C5.

[DavidH]

Second, from the best descriptions and photos I can find of the Caliber 5, it appears to be a mechanical mix, not eCCPM at all. Set up the swash as conventional in the DX7.


Caliber 30 comes with both mechanical and electronic mix
http://www.kyoshoamerica.com/helicopters/gp/21135.asp
http://www.kyoshoamerica.com/manuals/21135.pdf


Caliber5 the electronic mix system is optional
http://www.kyoshoamerica.com/helicopters/gp/21250C.asp
http://www.kyoshoamerica.com/manuals/21250C.pdf

They both are 120 deg eCCPM when using the electronic mixing setup.

David

[stevehonn]

The Raptor E550 and E620 are 3 servo 90 eCCPM as supplied with an option for 140 eCCPM. It's a pretty poor system as aileron is controlled by two servos but elevator only has one. The difficulty with 140 eCCPM is that comparatively few radios will setup for this.

[DavidH]

The difficulty with 140 eCCPM is that comparatively few radios will setup for this.


Any radio that has one free programmable mix and does 120 deg CCPM will do 140 deg CCPM

This will work with any 120 deg CCPM setup and one free programmable mix.

In order to accommodate a 140 CCPM setup with the 9Z requires the use of one program mix. The program mix that is necessary is elevator as Master to pitch as Slave. With my Caliber it requires -35% down linear mix and -33 up linear mix. The only other change is in the SWH menu. The elevator rate will need to be increased to approximately 70 to give the same control input as the standard 120 CCPM using a rate of 50. With these changes the Futaba will fly 140 CCPM perfectly. That is the setup I flew at the NATS with the Caliber. Using the 140 CCPM gives a more precise feel to the elevator inputs but does not change the collective or aileron feel.

[stevehonn]

The difficulty with 140 eCCPM is that comparatively few radios will setup for this.


Any radio that has one free programmable mix and does 120 deg CCPM will do 140 deg CCPM

This will work with any 120 deg CCPM setup and one free programmable mix.

In order to accommodate a 140 CCPM setup with the 9Z requires the use of one program mix. The program mix that is necessary is elevator as Master to pitch as Slave. With my Caliber it requires -35% down linear mix and -33 up linear mix. The only other change is in the SWH menu. The elevator rate will need to be increased to approximately 70 to give the same control input as the standard 120 CCPM using a rate of 50. With these changes the Futaba will fly 140 CCPM perfectly. That is the setup I flew at the NATS with the Caliber. Using the 140 CCPM gives a more precise feel to the elevator inputs but does not change the collective or aileron feel.

Thanks for the info on this. I'm currently using a DX7 but once the modules are available I will return to my PCM9X (9303). This is the earlier version which didn't have a 140 option but I've just returned it to MacGregor, UK agents for JR, for upgrade to the PCM9XII which does. I sent it off Tuesday afternoon and had it back this morning all updated.