# How to make a small model airplane take off (not working yet)

• chwala

#### chwala

Gold Member
Homework Statement:: I would like to know how to probably vary the motor capacity or battery in that case to ensure that the plane takes off. In the attached link- the plane did not take off.
Relevant Equations:: Physics

Delta2

Hi,
While that's a cute little arts and crafts project, I'm not sure it has good odds of being able to fly. It's pretty heavy and has a very poor propeller and wings. Compare to the classic balsa and rubber band plane:
https://www.amazon.com/dp/B01EZ1N3GM/?tag=pfamazon01-20

Maybe you could combine one of those with this electric paper airplane conversion kit:
https://www.amazon.com/dp/B00DTIYD4Y/?tag=pfamazon01-20

Delta2 and anorlunda
Question to @chwala: What does this have to do with Introductory physics homework? Your "relevant equation" is not even an equation or relevant.

Delta2 and berkeman
Question to @chwala: What does this have to do with Introductory physics homework? Your "relevant equation" is not even an equation or relevant.
Agreed. Thread moved from HH/Intro Physics to the DIY forum.

Question to @chwala: What does this have to do with Introductory physics homework? Your "relevant equation" is not even an equation or relevant.
My apologies...

My apologies...
No need to apologize, we have it all sorted out. So what's your next step for getting things reliably off the ground?

No need to apologize, we have it all sorted out. So what's your next step for getting things reliably off the ground?
I am still looking at this...The torque will be largely determined by current flow...increasing battery capacity to DC 9 volts would that help?

I am still looking at this...The torque will be largely determined by current flow...increasing battery capacity to DC 9 volts would that help?
It might help but you would do a lot better by reducing unnecessary weight and make significant improvements to the propeller.

berkeman
It might help but you would do a lot better by reducing unnecessary weight and make significant improvements to the propeller.
Yes, i had thought of using light paper for the prototype...

Yes, i had thought of using light paper for the prototype...
OK, now I'm confused.
I thought the challenge was to get that plane in the air - essentially, the one in the video.
A paper prototype would essentially be starting from scratch.

OK, now I'm confused.
I thought the challenge was to get that plane in the air - essentially, the one in the video.
A paper prototype would essentially be starting from scratch.
I was thinking that the material used was not light enough...

Google for "diy rc plane". Best material these days is typically some kind of a plastic foam, like Depron, Styrofoam etc. Unless you really know what you are doing it is best to buy a ready propeller, small LiPo battery, brushless motor and you should be ready to go.

Delta2, russ_watters and chwala
I was thinking that the material used was not light enough...
Yes. I am coming around to the idea that the plane in the video is not the actual type of plane you're trying to get moving. The opening post led me to believe that was the plane.

You are simply using the video as a talking aid, nothing more.