Chrisf98 Posted May 31, 2015 Posted May 31, 2015 (edited) Hey there, my name is Chris Feliciano and I'm working with a friend on this project to build a working flying American Airlines Airbus A300, this is going to be the main support forum for the project. Hey there, my name is Chris Feliciano and I'm working with a friend on this project to build a working flying Lego American Airlines Airbus A300, this is going to be the main support forum for the project. Edited May 31, 2015 by Chrisf98
Rishab N Posted May 31, 2015 Posted May 31, 2015 (edited) I don't wanna sound pessimistic, but many people have tried to make Lego fly and most fail . Best of luck to you Edited May 31, 2015 by Rishab N
Chrisf98 Posted May 31, 2015 Author Posted May 31, 2015 I don't wanna sound pessimistic, but many people have tried to make Lego fly and most fail . Best of luck to you Thank you for your concern I will do my best
Paul Boratko Posted May 31, 2015 Posted May 31, 2015 (edited) And what exactly are you planning on building this flying Airbus out of..? Just Lego..? Edited May 31, 2015 by Paul Boratko
Corvette3 Posted May 31, 2015 Posted May 31, 2015 (edited) Good luck i guess? lego is quite heavy, you'll need a lot of power to get it moving, for comparison a good quality RC airplane, weighs less than 1.5 KG, would use powerful Brushless motors and have light, high voltage LIPOs for power. the body is mostly a dense foam with micro servo motors for the flaps and rudder. Edited May 31, 2015 by Corvette3
Moz Posted May 31, 2015 Posted May 31, 2015 Are you at least going to start with a scale model? 1:4 or something while you work the bugs out?
Phoxtane Posted May 31, 2015 Posted May 31, 2015 (edited) ...the body is mostly a dense foam with micro servo motors for the flaps and rudder. Or for the truly dedicated, a delicate scratch-build balsa airframe that closely mimics that of the real-world design, covered in thin sheets of heat-shrunkun plastic. Servos for model airplanes are measured in tens of grams, Lego motors and battery packs are measured in hundreds. The material itself, too, is similarly an order of magnitude or two (I'm guessing) heavier, being composed of pieces whose wall thickness is much thicker than the paper covering on the foam planes or the plastic sheets on the fancier ones. I will personally eat a hat (of a type, and at a time and place, and with seasonings of my own choosing) if this actually happens with stock Lego Power Functions available at the time of posting. Edited May 31, 2015 by Phoxtane
Chrisf98 Posted May 31, 2015 Author Posted May 31, 2015 And what exactly are you planning on building this flying Airbus out of..? Just Lego..? Lego and some non Lego parts, the engines will have the least amount of Lego parts compared to any other part of the plane. Are you at least going to start with a scale model? 1:4 or something while you work the bugs out? Of course
zux Posted May 31, 2015 Posted May 31, 2015 Lego and some non Lego parts, the engines will have the least amount of Lego parts compared to any other part of the plane. So, same as in this topic?
Alegomind Posted May 31, 2015 Posted May 31, 2015 Mmm certainly it would be a very impressive technic set, but I don't think it can fly as real airplane :\ However update us about you work!
Karle Posted May 31, 2015 Posted May 31, 2015 With enough power anything can be made to fly, once! Best of luck on your project.
Chrisf98 Posted June 1, 2015 Author Posted June 1, 2015 So, same as in this topic? somewhat similar, except mine is gonna be lighterBtw, if any of you want to know the scale of the model, it's gonna be 7 feet long and almost 6 feet in wingspan I'm gonna build and work on this project with my best friend, and I expect it to take about 2-3 years until completion but I will keep you guys posted with updates and the work and some instructions on how to build it via YouTube
lee82gx Posted June 2, 2015 Posted June 2, 2015 if you really have a 2-3 year target, it may be worthwhile to invest or get a wind tunnel. It may sound complicated or expensive but in reality just a fan and fins to get laminar flow will do. with it, you can easily evaluate your lift to air speed ratio.
gti180 Posted June 2, 2015 Posted June 2, 2015 wonder what the calculations are for something like this, everyone says you need to reduce weight and increase power but reducing weight means the scale has to come down limiting the power you can apply. what if it was scaled up and used a system similar to the first planes to ever fly (wooden frame and fabric skin) if the scale was very large say 1;5 you would then be able to increase the power to weight ten fold by using an RC jet engine or something.
Chrisf98 Posted June 2, 2015 Author Posted June 2, 2015 @lee82gx I've actually already considered and have done research on a wind tunnel, it is gonna be used as a testing ground for the airplane before its first flight @gti180 the jet engines are gonna be custom made using Autocad 3d printer technology and will run on a Lego buggy motor, weight is gonna be a crucial factor for the design process I already printed out the drawings I'm gonna use to build the outline of the airplane
Chrisf98 Posted June 2, 2015 Author Posted June 2, 2015 This project is very very similar to this one http://www.eurobricks.com/forum/index.php?showtopic=73936
dhc6twinotter Posted June 3, 2015 Posted June 3, 2015 I hate to be a party-pooper, but there is no way a 7' long plane is going to take off with Lego RC motors. Probably won't even have enough thrust to roll forward. Good luck with the project!
gti180 Posted June 3, 2015 Posted June 3, 2015 @gti180 the jet engines are gonna be custom made using Autocad 3d printer technology and will run on a Lego buggy motor, weight is gonna be a crucial factor for the design process O I meant an actual RC jet engine... you got no chance using anything other than gravity for making this fly if you are only going to use Lego motors. (not sure if falling from height counts as flying)
MaxSupercars Posted June 3, 2015 Posted June 3, 2015 Some Topics are looking like Troll Topics... :-)
Chrisf98 Posted June 3, 2015 Author Posted June 3, 2015 @gti180 Don't worry guys I got it under control, I already figured out how I'm gonna use the Lego motor to power the jet engine, and I also figured out how the jet turbine is gonna be designed
Carsten Svendsen Posted June 3, 2015 Posted June 3, 2015 I say go for it. I've got a half-finished plane as well. It's so complex that I've actually started to get more bothered to build it than I enjoyed it. But I'm mostly curious as to how in the world you're gonna build a jet engine with regular LEGO motors.
Saberwing40k Posted June 3, 2015 Posted June 3, 2015 I think, no matter what you do with the engines, you could not make a plane this big fly with just Lego motors. Since you're going to use non Lego parts anyway, I'd say avoid using Lego motors entirely. My recommendation is that you invest in some true pro grade RC motors, or even miniature jet engines, like those sold by JetCat. In my opinion, even if you had to use non Lego motors for propulsion, it would still be very interesting to see if you could get a Lego airframe to fly.
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