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HomeScale✈️AircraftScale HeliScale Helicopter Main Discussion › Fertiliser Spreader Bucket
04-01-2021 02:06 AM  10 days ago
Scott99

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Nelson, New Zealand

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Spreader Bucket
Well.....its been a few years, but its ready for testing soon!
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04-02-2021 12:25 AM  9 days ago
Scott99

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Nelson, New Zealand

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04-02-2021 04:52 PM  9 days ago
cobieg

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Florida

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Interesting. What does it weigh?

Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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04-02-2021 10:06 PM  8 days ago
Scott99

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Nelson, New Zealand

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900gms empty - full with coal ash approx 2kg. Whats actually important is that its empty weight does in fact weigh something significant in order to fly well when empty.
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04-02-2021 11:14 PM  8 days ago
Copter Doctor

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Enterprise/ft.rucker ,al- home of army aviation

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sweet!drive a rotary, fly a rotorcraft
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04-02-2021 11:33 PM  8 days ago
Scott99

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Nelson, New Zealand

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....and it has a FIVE BLADED spinner
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04-03-2021 02:25 AM  8 days ago
oldfart

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Vancouver, Canada

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Very interesting project indeed. Looking forward to the results.Phil
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04-03-2021 04:28 AM  8 days ago
Scott99

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Nelson, New Zealand

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OK people - this is just a quick go on a less than ideal day with a bit of wind and purposely flying faster so I can concentrate on watching the bucket to see if the butterly was going to work properly or not....it will be improved on!

Watch at YouTube

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04-07-2021 04:28 PM  4 days ago
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

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Very nice Scott99. Your workmanship is outstanding. Keep posting your progress/modifications.
Be interesting to see how speed and height effect spread.
EDIT: Is the spreader motor speed under your control while flying
I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?
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04-08-2021 10:46 PM  2 days ago
Scott99

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Nelson, New Zealand

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Hi Gyrofreak, many thanks! no the spinner speed is set via a servo tester. The object of this project was no more than an "operational scale heli spreader bucket" to simulate spreading fert in a similar fashion to the videos posted in this thread of NZ ag operations that are common here, and to add some skill challenge with a "scale operation" that is a bit different.

Just as in full size ops, visually a narrow trail of "dust" is really all you normally see unless the sun angles are in favor and the material being sown is say Urea which is very white and a larger granular size.
So, my spinner and its speed are rather irrelevant other than a scale factor and creating a little vibration which is beneficial to keep "dust" flowing

Full size spinners are normally a set speed also, and flow is sometimes managed by insertable discs with a set size hole for different products in the middle which determine flow rate of material into the spinner, a sliding door operated by Pilot opens/shuts the flow. From there airspeed and height will also determine general spread. Combined with a GPS light bar, the Pilot can get an accurate spread on the job.

I am still refining the bucket with having upgraded the butterfly door servo and better ropes already
I haven't secured any large contracts yet
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04-10-2021 03:36 PM  1 day ago
GyroFreak

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Orlando Florida ...28N 81W

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Scott99,
I went back and looked at one of your videos of the full size helicopter spreading. It looked like the bucket was very close to trees at times, probably not as close as it looked.

At any rate the pilot has to have an extraordinary depth perception to judge where the bucket is in relation to the ground.

So if the bucket gets snagged or hits trees, does it have a calibrated breakaway system so as not to brig the chopper down ?
I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?
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04-11-2021 12:26 AM  19 hours ago
Scott99

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Nelson, New Zealand

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They are all on a cargo hook that can be released by Pilot electrically and sometimes also mechanically via cable pull "if the need arose".

Yes, depth perception and many other factors are just things that a Pilot learns through training and basically "doin it" during what is known as an "ag rating"
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04-11-2021 10:24 AM  9 hours ago
Scott99

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Nelson, New Zealand

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04-11-2021 01:07 PM  6 hours ago
cobieg

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Florida

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That is some good flying. I haven't slung anything since my first attempt at "pendulum" flying lol.

Ron
I didn't crash. I just ran out of airspeed, altitude, and ideas all at the same time!
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HomeScale✈️AircraftScale HeliScale Helicopter Main Discussion › Fertiliser Spreader Bucket
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