I would fly it!
- Thread starter buggyboat
- Start date
That is a great looking airplane! Heck yes, I'd fly it.
lol Yes a much bigger charger!
My first thought!
My guess is that its likely a tradeoff between weight and efficiency. An electric motor capable of turning a prop of the size that would provide the performance desired my be too heavy. I've also read that the larger the edf, the more efficient the blades are. Fan swept area increases exponentially with increase in fan radius.
Pardon me and all, it was quite a while since I took my last math course, but wouldn't that be quadratic increase um or something?
Yes. A=pi*r^2. The exponent two on the first term makes that a quadratic formula with coefficients b & c = 0. "Quad" means square.
Its all theory until you either crash it or don't!
Yea I'm not picking on words here, just that exponential increase would require the radius as the exponent (and they engines would rip out and go to the moon =).
Still that thing didn't take off in the vid, what they're chicken or just trying to raise more development money?
Still that thing didn't take off in the vid, what they're chicken or just trying to raise more development money?
Ok, going full out nerd here... Since the exponent is on the radius, doubling the radius increases the area by a factor of 4. Therefore, the area increases exponentially.
I get suspicious when I see airplanes taxiing but not flying. There seems to be a lot of fancy tricycles online.
I get suspicious when I see airplanes taxiing but not flying. There seems to be a lot of fancy tricycles online.
You're the teach, I won't argue... Oh who am I kidding =), I had to check Wikipedia as I didn't learn the terminology in English:
Quadratic growth, 2 as the exponent, like prop cross section surface area: πr2
Cubic growth, 3 as the exponent, like volume of sphere: 4πr3/3
Exponential growth, the variable as the exponent, like bacteria growing: ar
Sorry if I just argue against the language barrier here. And I don't claim to know the formulas for drag, power, efficiency, prop specs et c related to the surface area of an EDF.
Quadratic growth, 2 as the exponent, like prop cross section surface area: πr2
Cubic growth, 3 as the exponent, like volume of sphere: 4πr3/3
Exponential growth, the variable as the exponent, like bacteria growing: ar
Sorry if I just argue against the language barrier here. And I don't claim to know the formulas for drag, power, efficiency, prop specs et c related to the surface area of an EDF.
