jahur ahmed
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jahur ahmed's Discussions

How to make a rotor blade

Started this discussion. Last reply by John Arne Birkeland Sep 5, 2012. 1 Reply

Hi,I am from bangladesh. There are no industry or shop to buy light weight rotor blade in our country. I want to make good quality rotor blade. Do you have any idea? Can it be made modifying table…Continue

Tags: rotor, blade, a, make, to

lift and thrust relation

Started Sep 1, 2011 0 Replies

i want to make a quad rotor helicopter. from my study i understand that to fly an object lift equation is a must. but in the lift equation i did not find any relation between rotation of rotor blade…Continue

Tags: rpm, and, force, lifting

relation between thrust and rpm

Started this discussion. Last reply by Olivier ADLER Sep 2, 2011. 2 Replies

i wan t to know the relation between rpm and thrust. what is the formula or how can i calculate it.Continue

Tags: rpm, trhust, static

 

jahur ahmed's Page

Latest Activity


Developer
John Arne Birkeland replied to jahur ahmed's discussion How to make a rotor blade
"That will not be an easy task. A good multicopter blade has to be very light but still strong and rigid. The shape also has to be just right to get good lift efficiency. But if you are serious you should look into sourcing equipment and having some…"
Sep 5, 2012
jahur ahmed posted a discussion

How to make a rotor blade

Hi,I am from bangladesh. There are no industry or shop to buy light weight rotor blade in our country. I want to make good quality rotor blade. Do you have any idea? Can it be made modifying table fan or something like that?JahurSee More
Sep 4, 2012

Developer
Olivier ADLER replied to jahur ahmed's discussion relation between thrust and rpm
"  Use "Drive calculator". http://www.drivecalc.de/   It's a free software with a database of most wellknown motors and propelers.   Choose your motor, propeler, enter your batterie voltage and you will get all you want…"
Sep 2, 2011
Allen Babb replied to jahur ahmed's discussion relation between thrust and rpm
"http://www.grc.nasa.gov/WWW/k-12/airplane/propth.html   Note that, as the craft speeds up in the opposite direction of the generated thrust, the generated thrust decreases, suggesting that the maximum ideal airspeed of the craft is the same as…"
Sep 1, 2011
jahur ahmed posted discussions
Sep 1, 2011
jahur ahmed commented on Chris Anderson's blog post Awesome manned electric multicopter takes off, crashes
"good try but safety is first"
Aug 30, 2011

Profile Information

About Me:
i am interested in astronomy and aerodynamics. my hobby is to build different types of flying objects.
Tell us a bit about your UAV interest
helicopters with multiple rotor blades
Hometown:
dhaka

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