9v Planes

[Ralph_S]

I'm not sure where on teh interwebs I saw it, but if someone were to scale down, say a B2 bomber (158,000 lbs) to minifig scale (1:48)the model could feasibly weigh aroung 3280 lbs. Now just tyo find a motor to power it..

Dakar

No. Think about it. a 1/43 scale car model doesn't weight 50 lbs, does it?

Mass scales with the scale to the power 3. If the aircraft model were a perfect scale model and were to have the same density as the real one (were made out of materials similarly heavy per volume as the real thing) it would weigh 158,000/48^3=1.4 lbs.

Since LEGO doesn't have the same properties as aluminium or titanium or whatever a B-2 is made of, if you were to want to build an aircraft model that big, with a 4 ft. wingspan it would probably need fairly thick skin and a lot of internal bracing and would end up heavier than that. Perhaps as much as 20 lbs. I have built large aircraft models and they tend to weigh about that much.

The only way I can see a flying LEGO aircraft being feasible is with a lot of specialised parts. I don't think it's possible to build and to use a LEGO motor and propeller to provide enough thrust to propel it through the air at a high enough speed.

Cheers,

Ralph

[just2good]

A contest... what a great idea! I'll be a judge!

And that LEGO RC Helicopter video is quite amazing.

[Dakar A]

The only way I can see a flying LEGO aircraft being feasible is with a lot of specialised parts. I don't think it's possible to build and to use a LEGO motor and propeller to provide enough thrust to propel it through the air at a high enough speed.

Cheers,

Ralph

If only we could get TLC to build a gas motor.... and wings that produced a large ammount of lift. Maybe they could partner with boeing, or some other commercial aircraft company, as they have before for airline promos.

Dakar