Mini Quad Lifting Capability

[Kerbalnaut]

Hi All! First time poster here.

I am working on a project where we are looking at maximizing the lift capacity of a smaller size quad. The size restrictions of the project limit us to a maximum envelope of 4.5" x 4.5". We are looking for something RTF and available for purchase online preferably.

Does anybody have any recommendations on quads that fit this criteria with a high thrust to weight ratio?

Thanks!

 

[ringolong]

All of us already know the answer.

We are wondering what will the payload be?

 

[Kerbalnaut]

The payload will likely be 60g or greater.

 

[Jackson]

maximum envelope of 4.5" x 4.5"

With props?

 

[Gyro Doctor]

The size restrictions of the project limit us to a maximum envelope of 4.5" x 4.5".

With that small of a form factor (since you can't use more efficient larger props) you're going to be looking for aggressively pitched smaller
props turning at high speeds driven by powerful motors to obtain any substantial payload lifting capabilities.

That means you're looking more to a "built to suit" scenario and not anything that's RTF.

 

[Kerbalnaut]

With props?

Yes, with props and any blade guards. Essentially the maximum width and length dimensions.

 

[Gyro Doctor]

Yes, with props and any blade guards. Essentially the maximum width and length dimensions.

Anything you can buy that's that small will not have any substantial lifting capabilities at all.
You CAN build one though, but there isn't anything RTF that's going to be that small and still lift two or more ounces that I can think of.