FS One: Scaling Edge 540

[ideng]

I tried Scaling 33% Edge 540 into a mini edge 540. Here are the Parameters I enterred:

1) Wing span = 37 Inch
2) Wing Loading = 0.75 Lbs / Sq Inch (~ 12 Oz / Sq Inch)
3) I kept the Transmitter Setting (DR/Expo) unchanged.

With these parameters, I found the Mini Edge to be difficult to fly 3D. Did I miss anything? I don't believe the real Mini Edge is as difficult as this, although I didn't get a chance to try my real Mini edge yet (it's too cold out there)

Wisnu

[MSelig]

I tried Scaling 33% Edge 540 into a mini edge 540. Here are the Parameters I enterred:

1) Wing span = 37 Inch
2) Wing Loading = 0.75 Lbs / Sq Inch (~ 12 Oz / Sq Inch)
3) I kept the Transmitter Setting (DR/Expo) unchanged.

With these parameters, I found the Mini Edge to be difficult to fly 3D. Did I miss anything? I don't believe the real Mini Edge is as difficult as this, although I didn't get a chance to try my real Mini edge yet (it's too cold out there)

Wisnu

I agree that it's a bit sensitive for things like hovering. The E-flite mini-Edge has a wing area of 297 sq inches vs the scale down Edge with 226 sq inches in FS One. If it were me I'd prefer flying w/ more wing area, but we don't have a version like that in the sim.

In the sim, there is a "mini-edge" setup like your's above. It's tweaked to have an electric motor and sounds.

Another tweak (good to do) would be to use a smaller diameter prop running at higher RPM. I think the challenge in hovering the "mini-edge" FS1 setup is due to the high torque on the "big, slow" prop coupled w/ the smaller wing area -> both make it torque roll more vs one w/ more wing area and a faster spinning smaller prop. These tweaks are doable in the Scaling Wizard (propeller section). In that section, if you just change the diameter, and leave the "mass" zero, then the Scaling Wizard will auto-scale the moments of inertia (good). Then in the engine area, set the max RPM to something like 12,000 (direct drive). Then pick an engine sound that will get up to that RPM.

[Edit: I just did this: Pick the E-flite 12x6 prop w/ Park 370 motor. Pick electric motor sounds that get up to 12,000 rpm. In the Scaling Wizard set the prop diameter to be 7.7 inches. Leave the mass set to zero (for auto-scaling of prop inertia). Set the motor max rpm to be 12,000. Set moment of inertia scalars to all be 0.9 in the Scaling Wizard -- because the mass is more concentrated in the center w/ electrics/batteries. I think it feels pretty natural w/ these tweaks.]

Michael

[ideng]

I tried it, and it's a lot better. It's still difficult, but it's probably just my skill level :)

Thanks

Wisnu