Scale Helicopters
Roban

MD-500 E (500) Conversion

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Success! Got the Roban MD500 out today for maiden of the new 5 blade head. Needs a few tweaks to get rid of an occasional tail bounce and add a bit more cyclic throw in. All in all, I am happy with it.

I set phasing as much as I could mechanically then finished setup with the Brain FCU software.

I have head speed of 1850, may increase to 1900 to see if it eliminates the tail bounce.

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A little while ago I had posted about adding a 5 blade head to a new Roban MD500e with TREX 500 mechanics. Well here it is all done. Just waiting on weather to test fly.

I ended up using an Egodrift 4025 1220kv motor with 14t pinion for a target of 18-1900 rpm on 6s.

After reading through the phasing article in the article section and the Brain setup software, phasing seems like it's right...

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Joe B.United StatesDec 5, 2022 Need Advice

So I was able to get a Roban 500 size MD500 from MotionRC. I have a TREX 500 for mechanics in it and was able to get a couple flights on it before our field closed for the winter.

If I was to replace the head with a 5 blade head, do I stay with the same blade length or go smaller to keep the load on the esc and motor manageable? For all practice purpose, it is an older TREX, pretty much stock...

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