steph77

Steph77's Moc corner

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Hi Steph,

Very good progress so far. I love your helicopters and am happy you began another one.

Waiting for more progress :wink:

One question: do you know the overall scale of this little baby? because I'd like to put it on a lowboy trailer...

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Hi all,

Probably last post for this year. Time to wish you all the best for upcoming year 2020.

I spend last days to summurise what i wanted for my next heli project and i am actually  in between of two ideas.

So i'll build the two ;)

As previously explained, i want my next model to be a static demonstrator of how a helicopter fly and therefore i want to higlight all the command setup, linkage and so much more.

My constatation is that based on the huey scale, this goal cannot be reached due to lack of space Inside the model.

So i let my imagination have a free ride this time.

I let you here two pictures of my heli collection, so you'll know what i'll prepare you for this next year…

GzLRlh.jpg

New flybar concept on fully articulated rotor

q75l66.jpg

Cheers.

Steph.

 

Edited by steph77

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Posted (edited)

 

First of all, let me wish you all the best for this new year. And, as a new year must always begin with a good copter project...

UH-77 LIBERATOR

take 03

59yV1G.jpg

A lot of work since last post I must say.

First and it's important, this model is a fully rebuilt one. I redesigned the whole mechanical part in order to have a real free space in the cockpit. From the rotor mast to the front, no mechanics, only free space!

here it is:

zIHeYP.jpg

Next I designed the flight control in my AW169 's spirit, but improved.

On the left side you have the cyclic joystick, and on the right side you'll find two levers. One for the collective pitch and one for the tail rotor pitch.

I separate these function just because they are in real life.

I also finalised the main transmission shaft and connected it to a crank on the right side, just behind the cockpit door.

The design:

fMb4VB.jpgBySren.jpg

I managed to fit all the function with about 6 studs less in width compared to the 169. This results in a cool thin cab, giving to the blades more  expressions.

The two front doors actually opens, and I keep space for the rear sliding doors that are still to build.

I place a simple hand operated winch on the side. Command is simply by the 12T gear placed on the vertical pillar of the rear cab.

Ov6xvH.jpg

I used some coast guard like colour scheme. The identification number two on the nose is for the MK2 of this Huey like model.

The rear end integrated the tail rotor transmission shaft and the pitch control system.

The two rear panel (under @efferman custom parts) are open able giving a nice look at the control rods.

d73sTo.jpg

The top view shows a complete panelled and closed design of the main cab. It is also the case for the underside view

The main rotor head integrate a fake bell stabilisation system and offer very large range of movement for the blades. The main rotor is a fully articulated one.

I could build the full hiller-Bell mecha, but it seems to be a bit bulky at this scale.

3CY9V3.jpgdBtg6v.jpg

Last picture before further updates:

oPlP1T.jpg

All comments, advice or criticism are always welcome!

Steph.

Edited by steph77
spelling...

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Hi,

 

I finally get time to finish this model.

Here is a short video of it. Enjoy

 

 

Edited by steph77

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Hi,

 I am actually working on a project of a pickup truck in the scale of the TLG Porsche and Chiron.

This will be my big project for 2020...

As very very very preliminary stage, here is a view of the global scale of the project. I know the chassis is awefully built, not optimized at all. All this will be rebuilt, event the axles...

ynqhyT.jpg

Overall this hopefully will have these features:

- front wheels steering with HOG and functional steering wheel

- suspensions on all wheel, independent, and basic double wishbone setup (work well and more convenient in order to fit all other functions)

- detachable one piece bodywork, as I want it to be really exiting...inside

- Gulf colorsheme

- all manual, no rc elements

On Power function POV (trying to bring some fresh ideas)

- Motorized front winch

- Motorized opening of the cargo bay cover

- Motorized adjustable seats (front/back and tilting)

- Motorized sunroof

On the transmission POV I do want to achieve this setup:

- a rotary selector (as on the land rover) to select  4WD - 2WD(traction) - 2WD(propulsion) - NEUTRAL.

- a sequential four speed gearbox with control stick between the two front seats.

I am strangling with the transmission mode gearbox.

Does some of you all have an idea or an example of such mechanism?

Thanks for your help.

Edited by steph77

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1 hour ago, Oliver 79 said:

Looking good so far. Are those the new tyres from the batmobile? 

Not sure it looks so good :sadnew: it couldn't at this stage...

And no those tires are regular 94.3X38.4 from the unimog and Volvo loader sets.

Still any ideas for my drive mode gearbox?

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Got it!

NWZ3K7.jpg

This is based on the rotation of two gearbox selector that have an offset of 1/4 rotation.

With this gearbox I will be able to get a drive mode selector correctly setup and logical to use...

:classic:

 

Edited by steph77

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3 hours ago, steph77 said:

With this gearbox I will be able to get a drive mode selector correctly setup and logical to use...

Maybe I do not see it correctly, but when you engage 4wd-mode, you will lose the drive from/to the V6 engine/gearbox...?! Because on RotaryCatch1 nothing is engaged...

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19 minutes ago, Rudivdk said:

Maybe I do not see it correctly, but when you engage 4wd-mode, you will lose the drive from/to the V6 engine/gearbox...?! Because on RotaryCatch1 nothing is engaged...

True...🤔 i think it needs I go back to the drawing board...

One more rotary catch will be needed...

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1 minute ago, steph77 said:

One more rotary catch will be needed...

If you would add a 3rd catch below catch2 (into the 'back' of the RWD 16T gearbox gear) and make catch 2&3 move simultaneously, I think that will solve it.

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@steph77: do you have instruction for your UH-77 LIBERATOR? Like the model and the well designed technical concept. Great job!

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Posted (edited)
On ‎2‎/‎23‎/‎2020 at 3:57 PM, m3eu said:

@steph77: do you have instruction for your UH-77 LIBERATOR? Like the model and the well designed technical concept. Great job!

Sorry, not files yet. Maybe after my ongoing project :wink:.

 

And about this project, here is the actual state of the WIP.

- New chassis done

- Transfer box with selectable FWD/4WD/RWD

- Four speeds sequential gearbox done include the selector

- Begining the bodywork.

 

Pictures:

General overview. This model is enormous. Already have to reinforce front suspensions

The Black 20T is the HOG . It will be locate at the base of the windshild. I find this an elegant solution

The orange gearstick is the lever commanding the sequential 4 speeds gearbox

The gray rotary selector between the seats is the Driving mode selector. 3 position, no neutral so you Always find easily on wich mode you are

ie0RrH.jpg

 

e3fptK.jpg

Starting from the rear to front. The first section is the Driving mode gearbox. 3 Driving rings are selected alternatively to offer the 3 Driving modes.

The next module is the 4 speeds gearbox.

The only thing i do not like yet, is the appearable connection to the fake engine lateraly at the gearbox stick. The seqential selector takes all the place...

2tYJdg.jpg

View from the Bottom:

 

huCoWS.jpg

To be continued..

Edited by steph77

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