BBY Micro Turbine Hydro for SSSH

[RandyatBBY]

Thanks Jim that is what I was talking about.

[Waksk8n]

I didn't get to run last weekend the winds were to high. Jim your motor looks good I'm going to build my cowl up for the shovel.

[Waksk8n]

Made the first run today. Everything went well. Now its time for paint.

[peells]

Well lets get some pictures up

[Dr. Jet]

UPDATE:

After nearly a decade of doing something else, I've decided to get the BBY Micro Turbine on the lake. Just waiting for a modern radio to arrive in the mail.

[JimClark]

Welcome back Dr Jet

[fweasel]

Cool!

[RandyatBBY]

UPDATE:

After nearly a decade of doing something else, I've decided to get the BBY Micro Turbine on the lake. Just waiting for a modern radio to arrive in the mail.

It came out great! Nice to see the little boats still with a life.

[peells]

I still drag mine out once and awhile my orange and black is like 9 years old but still hits speeds of up to 49.9 mph the last time out it was like 45.0, I have one on the work bench collecting dust and have been thinking about dragging it out and finishing it, it should even be faster.

[RandyatBBY]

Man that is flying with a little boat. Bill had one doing 58MPH
I lost my little pond so I do not run mine either. It has a little hacker motor in it actually a real long one. :-) I would run it in golden gate pond but never have the time. It is mostly a matter of energy at 69.

[Dr. Jet]

Hey Randy, Good to see you are still around. I expect my 2S setup to be in the 30mph range, and I plan to post some videos (if it works....) I'm using a 2mm driveshaft and it is currently supported by a ball bearing at each end. I'm getting some wobbling in the shaft, so I plan to install an intermediate bearing to stop that wobble, so it will be a little while before I get it on the pond. Stay tuned.

[Dr. Jet]

Well, I finally ran the Micro Hydro. I had to go back through this post to see what motor I have (3850 Kv fan-cooled outrunner). Of course, this particular motor is no longer available, but there are countless others of the same size and Kv. I first tried it with a Graupner S-29 prop (29mmx1.6 pitch) with one of my old 2S packs. It was pretty ho-hum. Then I decided to put an S-31 on it to see if that would perk it up. I also swapped battery packs for a different 2S. I soon discovered that the first pack was way low on voltage. This thing literally flew. It was a bit of a challenge to keep it on the water. After retrieving the flipped boat, I went back to the S-29. It wasn't quite as fast, but it was 100% rock-stable. It cornered like a dream, was plenty loose on the straights and had absolutely no bad habits. This might be my favorite micro hydro of the bunch! This boat on 2S is about a quick as the Small Bolt is on 3S with a good prop, and the BBY hull has much better stability and handling.

Next time I go to the pond, I'll see if someone will video it. It's a hoot! Kudos to Randy for a great design: Shallow tunnel. WIDE sponsons. Perfect!

[RandyatBBY]

Well, I finally ran the Micro Hydro. I had to go back through this post to see what motor I have (3850 Kv fan-cooled outrunner). Of course, this particular motor is no longer available, but there are countless others of the same size and Kv. I first tried it with a Graupner S-29 prop (29mmx1.6 pitch) with one of my old 2S packs. It was pretty ho-hum. Then I decided to put an S-31 on it to see if that would perk it up. I also swapped battery packs for a different 2S. I soon discovered that the first pack was way low on voltage. This thing literally flew. It was a bit of a challenge to keep it on the water. After retrieving the flipped boat, I went back to the S-29. It wasn't quite as fast, but it was 100% rock-stable. It cornered like a dream, was plenty loose on the straights and had absolutely no bad habits. This might be my favorite micro hydro of the bunch! This boat on 2S is about a quick as the Small Bolt is on 3S with a good prop, and the BBY hull has much better stability and handling.

Next time I go to the pond, I'll see if someone will video it. It's a hoot! Kudos to Randy for a great design: Shallow tunnel. WIDE sponsons. Perfect!

Well thank you. I can make more.

[Dr. Jet]

Well thank you. I can make more.

Hey Randy, glad to see you're still around. I heard about your bike crash ( Ouch!!)

I'm trying to resurrect the SLOBS (Santee Lakes Old Boaters Society) and the number of decent available micro hulls is limited. If I can stir up some interest, I'll let you know. I still have the files for laser-cutting the internal plywood bracing, so it would make building a fleet of them a breeze.

By the way, did I mention my hull turned out as stiff as a board? That's one reason it handles so well and predictable.

[NativePaul]

Not scale hydros, but there are Naviga Mini Mono, Mini Hydro, and Mini ECO classes now, so there are a bunch of sub 450mm stepped monos and outriggers, and sub 430mm flatties available from Europe and Asia.