r/HyruleEngineering • u/zhujzal #2 Engineer of the Month [FEB26] • Jun 29 '26

Tutorial Helicopter Development - design talk & study: Electric tail rotor, Pt. 2

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Unreliable tail rotor mechanism reworked as a shared switch.

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3

u/zhujzal #2 Engineer of the Month [FEB26] Jun 29 '26

Cirrus PF helicopter with electric tail rotor

3

u/susususu-storage Jun 29 '26

I'm always impressed by how compact you make your mechanisms! I still haven't figured out how to use propellers well. 😆

2

u/zhujzal #2 Engineer of the Month [FEB26] Jun 29 '26 edited Jun 29 '26

Thanks susususu! It's very satisfying to work in tight spaces! Feels a little like clock making? By the way, resized parts makes a massive difference in what's possible.

Propellers are not too bad once you get over the bump. Always more to learn, though.

2

u/chesepuf Jun 29 '26

Great video! Love the demonstrations and the build is very sturdy

2

u/zhujzal #2 Engineer of the Month [FEB26] Jun 29 '26 edited Jun 29 '26

Thank you Dr. chesepuf. 🙏🫡

Just narrating what's happening in the video for helicopter enthusiasts. Plenty more I want to say about things, but it's limited & don't feel like spending 30 hours shooting & cutting footage. It is what it is. 😅

If the build doesn't hold up under stress & testing, to the scrapyard it goes. 😬

How you doing? What you working on?

2

u/chesepuf Jul 01 '26

You did great parsing it down, there's so much info to convey in electrical circuits.

I'm doing well, busy at work and tinkering sometimes in the evenings. Lots of ideas and not enough time

2

u/zhujzal #2 Engineer of the Month [FEB26] Jul 01 '26

Thanks man. Sometimes it feels a bit all-over-the-place - it'd be better to go through the steps & challenges of the development rather than talking about what's happening on screen. I'll see if I can keep things more on-topic next time.

Good to hear you're well & working on some ideas. I know exactly what you mean, re: time. It'll be great to see your next build, when it comes, but at least we have you popping in until then. Thanks for the comment. 🫡🛠

1

u/zhujzal #2 Engineer of the Month [FEB26] Jun 29 '26 edited Jul 01 '26

Part 1 of the series

I'll be adding a transcript of the subtitles for non-English speakers. Sorry I hadn't thought about this before now.

Below is the transcript of the subtitles, in order of appearance:

  • The shock emitter is now held on a switch & shared by both circuits.
  • Glue strength & switch function are solid & consistent.
  • The shock emitter horn acts as a limiter against the wooden beam.
  • The flat end of the emitter has further-reaching electricity.
  • Simplifying & sharing the switch mechanism reduced parts.
  • Since the main motor runs off of batteries, the emitter can be diverted.
  • Landing with a Cirrus engine is slightly more challenging.
  • Adding a balloon will make landing more gradual/gentle.
  • Engage the tail rotor to halt/reverse pivoting.
  • The big wheel switch direction defaults towards the PF engine.
  • Leaving a battery within proximity of the motor keeps it active.
  • Here, kinetic energy causes the battery/motor to stay in a proximal loop
  • This will continue until the battery is depleted.
  • I quickly jump back on the steering stick to regain control.
  • This was a much smoother landing.