Hello,
This is my first post on this forum, and I'd like to share a project I just began last night. I am relatively new to electric models, so take everything below with a grain of salt!
I was inspired by the Flight Test video "100 MPH for under $100.00", and the concept of a cheap speed machine. Unfortunately, I did not have any bespoke high performance components laying around, so I tweaked the concept a bit. I decided to determine how fast my low end components are capable of going, and aiming for that speed. This way, the challenge changes from a set speed, and instead focuses on airframe efficiency. This to me is an interesting idea as it means that any components can be used in any airframe, and the challenge is just as relevant with a 50 dollar aircraft vs a 2000 dollar aircraft. Naturally, more efficient electrical components will also help, too!
My setup consisted of a generic 1300 kV bell-style outrunner, an 18 amp ESC, 10C 3s 1300 mAh LiPoly, and a Tornado nylon 7-4 prop.
Doing the math, this should equate to [(11.1 V X 1300 kV) X 4 inch pitch] / 1056 (to bring it back to miles per hour) = 55 mph.
That's not very fast. Of course, though, that makes it a bit easier, as drag increases exponentially at higher speeds. This means that it should be easier to achieve my goal, and any inefficiencies will be less pronounced.
If there are any incorrect assumptions or inconsistancies with anything above, I'd be happy to hear about them.
Now onto the airframe!
This is my first post on this forum, and I'd like to share a project I just began last night. I am relatively new to electric models, so take everything below with a grain of salt!
I was inspired by the Flight Test video "100 MPH for under $100.00", and the concept of a cheap speed machine. Unfortunately, I did not have any bespoke high performance components laying around, so I tweaked the concept a bit. I decided to determine how fast my low end components are capable of going, and aiming for that speed. This way, the challenge changes from a set speed, and instead focuses on airframe efficiency. This to me is an interesting idea as it means that any components can be used in any airframe, and the challenge is just as relevant with a 50 dollar aircraft vs a 2000 dollar aircraft. Naturally, more efficient electrical components will also help, too!
My setup consisted of a generic 1300 kV bell-style outrunner, an 18 amp ESC, 10C 3s 1300 mAh LiPoly, and a Tornado nylon 7-4 prop.
Doing the math, this should equate to [(11.1 V X 1300 kV) X 4 inch pitch] / 1056 (to bring it back to miles per hour) = 55 mph.
That's not very fast. Of course, though, that makes it a bit easier, as drag increases exponentially at higher speeds. This means that it should be easier to achieve my goal, and any inefficiencies will be less pronounced.
If there are any incorrect assumptions or inconsistancies with anything above, I'd be happy to hear about them.
Now onto the airframe!
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