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HomeScale✈️AircraftScale HeliScale Helicopter Main Discussion › ScaleHouse Bell 412 w/Hirobo mechanics
11-26-2017 08:02 PM  21 months ago
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BillK

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ScaleHouse Bell 412 w/Hirobo mechanics
RR scale folks,

Emile has inspired me to post some pictures of a project that I've been very slowly working on. Every now and then when I get some extra time and am motivated, I do a little more on the project. Anyway, I thought I'd share.

About 15 years ago I purchased this Scalehouse Bell 412 from Jerry Hicks. It's an old-school fuselage with exceptional fiberglass quality and built-in detail. Well, a few years ago I decided to start building it with Hirobo Freya mechanics converted to electric. All the window openings etc.... have been rough cut with finish sizing to follow. Hand-made night-sun, winch and wire strike protection are made but not installed yet. The toughest part thus far was installing the pipe drive tail assembly and getting it to align perfectly. I've used all Hirobo Eagle tail drive components so this heli should be very smooth. Nothing is installed permanently at this time, just making sure it all fits together well. Modifying the mechanics to install a low tail drive gear box was also a bit of a challenge. From the swashplate and above, it's all Vario. Motor and ESC are scorpion and I plan to run 2 x 5S 5000 battery packs.

Next part of the project is to build the sliding cabin door assembly, fix the tail to the main body and hopefully have a few successful test flights. This is my first electric heli as I'm a nitro heli person. (I do own a T-rex 450 though). I'm a little intimidated with the electric motor power and getting it set up correctly (especially without a clutch system). Radio is all Futaba with CGY750.

I've also read about the benefits of installing a clutch system, but at this time haven't quite worked out how to mount it in the mechanics, but I'm not done trying.

As I do more, I will add some more pictures. This is my first post with pictures, so I hope I followed the directions carefully.

Bill

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11-26-2017 09:53 PM  21 months ago
Copter Doctor

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Bill that's a wonderful looking project and I am tickled to have offered the inspiration to get it going again and shared here. Yes the scalehouse fuselages were top notch by both yesterday's and today's standards and I wish they were still available. please keep the pics and progress coming!drive a rotary, fly a rotorcraft
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11-26-2017 09:58 PM  21 months ago
BillK

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Thanks Emile.
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11-26-2017 11:09 PM  21 months ago
BostonCopter

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I like the access to the tail drive, that sure makes it easier...If you can't be that good, then be good at it !
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11-27-2017 01:39 AM  21 months ago
dave35495

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canada

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you have bring back my memories' love this scale house bell 412, very beautiful project.
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11-27-2017 01:47 AM  21 months ago
BillK

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Thank you all!
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11-27-2017 07:06 AM  21 months ago
goodhunting

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I'm a succker for bell 412's and this is one lovely project.
can't wait to see the progress..

did you decide about the paint scheme yet?

Klem
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11-27-2017 12:05 PM  21 months ago
Notar

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You may want to speak with Peter Wales as he converted a gas freya(?) set of mechanics in Hirobo Bell 430 some time ago, with a clutch system.
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11-27-2017 02:54 PM  21 months ago
BillK

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Klem and Notar,

Thank you. I will reach out to Peter Wales to see if he can provide some insight on the clutch.

Regarding paint scheme. The 412 will be modeled after the Westpac Rescue Helicopter that is based in Newcastle Australia. It's primary color is yellow with red accents. The westpac 412's have been retired and they are now using AW139s.
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11-27-2017 03:14 PM  21 months ago
goodhunting

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Billk

I am familiar with the westpack color scheme

it is werry pleasing fo rthe eyes as you fly...

My plans are... to paint my BK117 in those colors... once I get arround to it... (by current guesstimation somewhere between 2048 and 2055)

Klem
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11-30-2017 02:41 AM  20 months ago
Mojave

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Palos Verdes, Ca. USA

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Very nice 412 project!! I love the scale detail molded into the fuse.
Barry
All helis and planes have an expiration date stamped on them...you only find it after you crash!!
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11-30-2017 02:54 AM  20 months ago
BillK

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Thank you Barry
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12-07-2017 12:46 PM  20 months ago
206 pilot

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,Long Island,

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412
Hey man great fuse for its time and even now, I built one from jerry 20 years ago with an excellent custom, if u look at my gallery u will see it..Rich
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12-07-2017 02:08 PM  20 months ago
chopper37

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NJ and Long Island

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Rich post the video of the Auto
its a great looking heli!
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12-07-2017 02:41 PM  20 months ago
206 pilot

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Can't one of the PD guys has the tape.
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12-07-2017 02:55 PM  20 months ago
BillK

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Beautiful heli Rich and thank you for sharing. I'm hoping mine looks half as good as yours when it's finished! Bill
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12-07-2017 03:20 PM  20 months ago
chopper37

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Can't one of the PD guys has the tape.
So let’s call him up and get it. Lol
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12-07-2017 11:12 PM  20 months ago
206 pilot

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Hey bill it will take your time with it, my 412 that I got from jerry is the one in primer and finished it's the NYPD one not the LAFD one,,, I ending getting his 4 bladed rotor head and blades, back then, no stab systems or electric helis ha ha, it's to bad the front doors don't open, Rich
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12-08-2017 02:56 AM  20 months ago
BillK

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Rich, thanks for letting me know. I also wish the front doors would open. Also agree how different things were 20 years back. I still have some of my old electronics as reminders. I'm getting ready to work on the sliding doors and reached out to Barry for some advice, who has graciously agreed to meet me during the holidays and offer his expertise on how do do them. I spent last weekend making a radome for the nose of the 412, and it took me well over 12 hours of work. It's not exactly how I wanted it to turn out, but it's going to have to do. I'm starting to appreciate what it takes to build a scale model now. My hat goes off to all of you!

BTW Rich, you have no idea how tempted I've been to buy your 407. It's such a beautiful model. Bill
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12-08-2017 11:48 AM  20 months ago
206 pilot

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Hey bill thanks on the 407, Barry super nice guy, spoke with him lastnight via PM, he's helped me out with one of my plug n play rotor heads,,, as of the Radar dome on the nose? Back then I took a ping pong ball and cut it then molded it to the nose, that's all we had back then ha ha, now you can buy all the scale stuff,, with the sliding side doors? Simple set up you should not have any issues, doing it, I think there is one other guy out there who has the same 412 but it's a nitro like mine, so I guess we are the only 3 who kept them alive, yours electric looking forward to watch it come alive and fly.. Rich
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HomeScale✈️AircraftScale HeliScale Helicopter Main Discussion › ScaleHouse Bell 412 w/Hirobo mechanics
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