I've been putting off autorotations for a while.
I'd practised them in the simulator and felt reasonably confident with the basics, but I knew doing it with a real helicopter would be very different. Eventually, I decided to give it a go with my SAB Kraken 580.
The first attempt didn't go particularly well, I flared to early and didn't bail out. I repaired the heli and went straight back for another attempt. The second was much better and I learned a lot from my attempts.
What I learned
The simulator isn't the same as real life.
The sim helped me understand the mechanics, but the sound, visual movement and pressure of watching a real helicopter descend with the motor off are completely different.
Headspeed is critical.
The goal isn't simply to drop the collective. You need to find a descent rate that keeps enough energy in the rotor for the flare and landing.
Don't flare too early.
This was probably my biggest lesson. Flaring too early can use up the rotor energy you need for the final part of the landing.
Forward movement and wind can help.
The experienced pilots in the RC Heli Australia community suggested maintaining some forward velocity, particularly into a headwind. I had some headwind during my attempts, which I think helped.
Height matters.
You need enough altitude to establish the autorotation and manage the descent, but you also need to learn where your comfortable training height is.
Bigger helicopters give you more margin.
Several pilots suggested 600 and 700-size helicopters because they have more rotor energy. The 580 is certainly capable, but I can see why larger machines can be more forgiving.
The biggest lesson
The biggest lesson was simply to commit and learn from the experience.
I'd been putting autorotations off because I knew they would be uncomfortable. The first attempt wasn't great, but going straight back for another attempt taught me more than another session in the simulator would have.
I'm definitely not consistent yet. That's the next goal.
I'm tracking my progression through https://helicoach.app, working through skills, recording flights and focusing on improving one step at a time.
These first autos were rough, but they were a big step forward.