Lipko

[TC15 give up] Light Sport Aircraft - Four Seater Cruiser

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Hi all!

This will be my entry for the aircraft contest. It will be a normal airplane, more specifically a "light sport aircraft".

The model will focus on the looks but will have the main features that make an aircraft.

Planned features:

  • variable pitch propeller
  • rectacting gears
  • nose gear with drag steering: gear self aligns. Some real small planes have this, and in the real plane the steering is achieved by skid-breaking the two main wheels.
  • doors hiding the rectracter wheels (expendable)
  • flight control surfaces:
    • ailerons
    • elevator
    • rudder
    • flaps (expendable)
  • control system:
    • HOG for the main flight controls, triaxial joystick (expendable for two separate sticks)
    • ailerons and elevators are also controllable from the cockpit (dual setup)
    • propeller pitch from cockpit with the throttle lever
    • flaps from either cockpit or hog
  • 4-cylider flat engine. At the moment it's a proper flat engine with counter-acting pistons, but I could only implement it with a very big offset between the two cylinder lines, so maybe I will go back for a V4 engine instead to save a little space
  • the engine and the propeller will be driven somehow from the middle of the body, probably with some one-way button pushing ratcheting mechanism thing...
  • opening canopy
  • opening engine door (it doesn't have to be hinged, but has to be easy to remove)
  • awesome luxury looks

After about 20 hours of work, the only thing I'm satisfied with is the variable pitch propeller... I have a basic shape defined, controls in the cockipt but I can't route the drive to the engine. I also have the nose gear steering, which looks kind of ugly but works. The mayor challenge in the gear was to add a very small return to center mechanism (otherwise the gear couldn't be retracted) and obviously the rectracting itself.
I will have a big rebuild this weekend, so the internals will change greatly. However, I'm satisfied with the overall proportions and size of the model. Inadvertently the scale will be around 1:10, so in the "supercar scale".

Propeller: I decided to go for a built propeller blades that fit the scale better (and looks better than the propeller blade part, which fit old-school planes better in my opinion) and can be connected to the pitch control more efficiently.

Sorry for my English and typos, my computer died, and also I haven't slept too much lately.

PICS (the propeller pitch hub needs some parts to replace, I guess you'll find which):
20181206_234545.jpg

20181206_234536.jpg

20181206_234606.jpg

20181206_234614.jpg

Edited by Lipko

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I'm so glad that you decided to enter!  I recall quite a few posts on how Lego has been dull for you as of late, so happy that the bug has bit you again.....

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Good to see you active again! 

That's an impressive list on functionalities you have planned, and it looks like you made good progress implementing them. Good luck with your build, looking forward to next update:thumbup:

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I like your utilization of the wheel hub for the pitch function. This works perfectly for a three blade propeller. A great idea I would not have come up with. Great job.

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I am working on a similar variable pitch setup with the wheelhub as well. I took my inspiration from @steph77's helicopter moc. Wouldn't have thought of it myself either.

Edited by Rudivdk

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Nice, I like all the manual controls, it's actually the same kind of thing I originally thought of building...

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First if all I really like that you use 'classic' engine type (somehow I could not find it appropriate to have cylinders falling out - like solution on Mack or Corvette), but I hope that you make it with less rainbow colors, if you want it would be very nice in Hungarian flag colors (I apologize if there is mentioned that final version will be more 'monocolor' like white or light bluish gray...)

So far I find very good solutions in your work :thumbup:

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Of course anyone can "copy" the pitch controller idea, though it is really a straightforward thing you can do with the hubs. I tried several times to use the hubs for similar situation but this is the only place so far where it truly fits.

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After I found out about the hub part, it indeed feels like the only logical solution for this.

Nice to see everyone discussing ideas and feeling good about sharing them with others:thumbup::thumbup:

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Great choice of model.

I really like the proportion you already capture on your draft!

On ‎12‎/‎7‎/‎2018 at 6:30 PM, Rudivdk said:

I am working on a similar variable pitch setup with the wheelhub as well. I took my inspiration from @steph77's helicopter moc. Wouldn't have thought of it myself either.

If anyone care I would be glad if some of you all rebuild some of my own concept and stuff. I published with the help of @Ivan_M the instructions of Aw169.

Fell free, all, to take inspiration of it.

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I give up on the project. I worked hard on this almost every night and I still have hardly anything (it's not even worth it to take new pictures). The next time when I could probably continue is at the beginning of January, so I will have no chance to finish it with this development speed. This kind of complicated model is way over my head, I can only design simple cars with simple looks. Also my enthusiasm is not as big as it used to be, so I'm officially giving up on this whole Technic hobby once and for all. When I have kids (one is on the way :laugh: ) I will probably build simple town stuff for and later with them, but this "professionalism" obsession thing isn't working.

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That's sad to read. But hey, this hobby is supposed to be fun. When it's no fun, you're right to give up on it. And with a kid on its way, you'll have plenty of challenges coming up.

Btw my kids have taken me out of my dark age, so who knows what the future has in mind for you. I started with building small cars that could steer and had suspension and could not come apart, at least that's what I thought. Seeing your kid play with something you've build is worth more than a 10.000 likes on rebrickable.

Edited by Didumos69

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Sad to see you go, @Lipko. But, as @Didumos69 says, you shouldn't do a hobby if you don't enjoy it. Congratulations on becoming a father (if all goes well) and I hope you will remember your time at EB fondly.

PS The "simplicity" of your car MOCs, as you call it yoruself, is one of the things I particularly liked. At least for the one I recognize from your avatar :)

Edited by Erik Leppen

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Sad to hear it's not working out for you... but good that you're not pushing on against your own desire.

Having 2 kids of 5 and 3 myself I can totally confirm what @Didumos69 said, maybe at some point the 'demand' will get you back in the technic world:laugh:.

All the best with becoming a father (and your wife in becoming a mother as well of course), as I found out myself it's the greatest joy in the world, no hobby can compete to being a parent.

We will remember you for the excellent MOCs you've created. Calling them simple doesn't do them justice in my opinion.

Edited by Rudivdk

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31 minutes ago, Rudivdk said:

Calling them simple doesn't do them justice in my opinion.

Exactly, Lipko is being too modest.

Much has already been said by the posters above me that I also agree with, so I wish you all the best Lipko and your (soon to be expanded) family.

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