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10-24-2013 01:57 AM  5 years agoPost 1
heliflyer7

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North Carolina

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10-24-2013 04:03 PM  5 years agoPost 2
Heli143

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Phenix City, Alabama

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very nice!

sounds smooth. can you provide details on the conversion?

thanks for sharing!

Roy Mayoral

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10-25-2013 07:44 PM  5 years agoPost 3
heliflyer7

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Thanks Roy,

The video description has some hardware specifics. Here's some other info as well.

Watch at YouTube

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11-01-2013 02:03 AM  5 years agoPost 4
Heli143

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Phenix City, Alabama

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Nice video with lots of info.

Have you posted this in the electric conversions section?

A lot of folks would enjoy this info.
That's where I post my conversions.

Thanks again!

Roy Mayoral

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11-01-2013 03:11 PM  5 years agoPost 5
heliflyer7

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Hi Roy,

For whatever reason, hadn't thought about that. Great idea and will do. Thanks again for the kind words!

Jack

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11-05-2013 11:36 PM  5 years agoPost 6
icanfly

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ontario

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good timing, I'm about to go into my shuttle zx which needs some rebuild. Not sure if I wanted to convert to e or not, your demo has me rethinking the nitro motor it came with

What's the head rpm and motor kv?

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11-06-2013 03:11 PM  5 years agoPost 7
heliflyer7

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Hi icanfly,

I'm running ungoverned, so head rpm starts at 1800 rpm with a fresh pack and drops to 1650 after a full (9-10 minute) flight. I fly strictly scale so that helps keep current draw averaging around 20-21 amps.

Motor (Hacker C50-19XL) is 855kv, way more than enough power.

I fly and enjoy it so much more since the conversion.

Jack

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11-07-2013 09:16 PM  5 years agoPost 8
icanfly

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ontario

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Your flying nose in, in windy gusty conditions, and the heli is very stable looking. Imagine a multi blade rotor head and what it could pick up.

9 to 10 minutes of that, that's amazing.

Well, I'm a believer and the work on my Shuttle ZX hs begun. CF tow, Kevlar tow, ca, and epoxy and those plastic parts are not a problem. I am looking for an 8mm shaft head or will have to adapt to 10mm to fit a more common trex style multi head. I figure 4 blades is best because of balanced pairs. If they make a 6 or 8 blade head I'll look into it. Thing here is that a smaller rotor diameter is achievable while pursuing a goal of vibe free balance and lifting power. I'll be playing with the shuttle until ready to splurge on something more up to date now.

heliflyr7, the fact you ran the thread in this forum is very interesting, thanks for the encouraging and insightful videos also.

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11-08-2013 08:36 PM  5 years agoPost 9
heliflyer7

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North Carolina

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Hi icanfly,

While I'm thinking about it, look at my posts in the electric conversions column as well.

I made up my mind that when I learned to fly, I started with a sim, that I would do it nose in from the get go. Glad I did, however, I'm not nearly as comfortable with tail in. Funny how that works.

I'm very curious to see how the adaptation of a multi-blade head goes. Please post photos and comments.

Glad I could be of help, let me know if any other questions.

Jack

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11-13-2013 07:18 PM  5 years agoPost 10
icanfly

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ontario

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here's where it's at right now

Am extending the boom struts to 18in while repositioning the fin and bent the boom back upward a bit (someone had either dropped it on the tail or brought it down hard enough to break the original fin and back skid strut and the boom was bent downward a bit). Mocked a new plastic tail fin, moved the front skid strut forward an inch with an alu plate under it and raised the rear strut 1/4inch. Rebuilt the rotor head, all seems well except for a cracked clamp where the blade bolt is. Head assembly is missing a link from the swash to the first bell crank. Screwed in a ss ball to fix the inner swash where one ball was broken, now thinking of busting the other to do the same to it.

Under the canopy are JR NES-507 servos which had cut wires so I re-soldered new ones. I'm curious how these would be wired to the rx for separate collective servo control. I cleaned the chassis a little from the old nitro residue.

One weak spot on the frame is at the back between the motor mounts and the tail boom section above. It's said the shuttles always break there first. I figure a bit of cf sheet attached will help sustain more impact if and when.

I plan to fab a cf base plate/batt holder (or alu) And am thinking of a longer boom (cf 21mm) to run 600 blades. don't want to go banans on it but as they say "run what ya have", a bigger bird than a 450 this is.

It's interesting that going with a multi blade rotor gets rid of the flybar and doesn't require a 3x gyro. One worry is tail authority but running modern 500/550 length cf blades will be no problem with slightly longer/larger tail fins. It might be possible to get a smaller gear for the tail shaft to speed it up. I'll end up making my own blades for the tail and mains one day.

Wealth permitting an esc, motor, alu tail assembly, and multi head with blades shouldn't run more than some hundred bucks. I have a bec, rx batt, rx/sat, and some 2200mah 3s batts which can be run series or parallel depending on the motor. Pending a motor and esc it'll be run with what it has now head/tail/blade wise to get a feel for it. I'll make my own motor mount.

Only drawback about a multi blade is having to remove one or more blades to transport but the lifting power will be there.

It's going to be interesting.

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11-14-2013 12:59 PM  5 years agoPost 11
heliflyer7

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North Carolina

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Quite a few mods going on there!

FYI, I put a 3 axis gyro on my Hirobo Lama when I did the 3 blade conversion, an Align 3G. A lot of guys have done the same, though some say it's perfectly flyable without. I feel like it tames the response quite of bit after flying it without one. Some of that, I'm sure, is personal preference.

As for the rest, I think I would keep it as close to stock as possible, then make one mod at a time and see what happens. You never know what kind of interaction you'e going to have when you start making multiple changes. Just my $ .02 :-)

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11-15-2013 11:52 PM  5 years agoPost 12
icanfly

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ontario

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you're quite right about one step at a time.

3 blades can fly without a gyro, huhm, did not know that. 4 blades are easier to match in 2's, as long as opposing pairs are of equal weight. Been looking at youtube multi blade rotor set ups. One guys CH 53 with 6 blades is sooooo stable.

Check this little aerial photo Mr. Bowflex got on my gopro this afternoon with his 550 Century upgraded to 600. Similar in size to the Shuttle mof.

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