I've been experimenting with engine failure on takeoffs, just above V1, the so called V1 cut. So far, I have not been very successful.
While I have been able to counter the initial yaw with the nosewheel on the runway, after rotation begins, there is insufficient rudder authority/effectiveness(?) to correct the yaw both in and out of ground effect. I have the flight control page up and the Developer>Show Flight Controls window open. From both indications, I am getting full rudder deflection. Yet out of ground effect, with the wings level, the slip indicator (i.e., doghouse) is about 3/4 displaced towards the operating engine, indicating more rudder is required.
The good thing about HS CL650 is that you have the yaw/roll coupling inherent with sweptwing aircraft modeled very accurately. The bad thing is that because of the excellent modeling, the lack of sufficient rudder authority/effectiveness means that the aircraft at V2 is rolling off into the dead engine, making it very difficult to fly.
I have much experience in how V1 cuts work, teaching them in the LJ-JET series Level C simulator for many years, as well as being type rated in the Lear 45/75, DA2000, and CL300/350. I suspect that the CL650 with its hydraulic rudder would be very close to the CL350, and at very light weights where V1 is near V1/VMCG, full rudder will be required. I have been practicing these at 35,500 lbs. V1 is 114, VR is 121, and V2 is 131. I'm taking off from KICT's runway 1R on pretty much a standard day.
Yesterday, I did some heavyweight takeoffs at 45,000 lbs. hoping the rudder control, authority, effectiveness would be a little better. It was not. Although, the performance following the engine failure was pretty close to what I would expect without digging into the AFM.
I am fairly new to XPlane beyond more than casual users. The quality of addons in XPlane has now made it my sim of choice. Is there any way that I can tweak the rudder on this model to see what might work better, and report back to you folks? Any suggestions would be greatly appreciated.
Thanks!
Rich Boll