Recent content by sid_raptor

lol i just quickly made that in paint brush because i could not find any good diagrams of how it works...guess it caused more confusion instead..hehe anyway yea it is very similar to a venturi but just on a larger scale and as i said before we just want more air to move into the skirt to...

and yes the doughnut platform is not very good at lifting weight but i think it is a very good place to start as it teaches you the basics rather well.

I got the idea about thrust augmenters from model pulsejets. you can find more information about how they work easily this link has some information but i am sure you can find more detailed info aswell. http://www.pulse-jets.com/phpbb3/viewtopic.php?f=19&t=5440" this one is mounted on a...

another thing you might want to consider is a thrust augmenter. i think in a hovercraft with a skirt you are not looking to move air very fast but rather a large volume of air. To do this a simple modification to you fan might help a lot. first of all you need to put a duct on your fan so it...

i sort of solved the control problem by making a design using 3 smaller donuts arranged as an isosceles triangle which somehow i found easier to steer but it also meant increased weight. the best way to solve the power problem is to use lightweight batteries in series. I would recommend one...

so cSt is centistokes then? lol why did i not think of that! thanks for your help mate! much appreciated!

what is your skirt design like and what kind of fan are you using? I have build model hovercrafts before and i found the simplest to build is a circular 'donut' type skirt powered with a fast cpu fan and a couple of 9v batteries. But it is not able to lift up a lot of weight and is a painful...

hi a quick google search turned up this project. someone did a project that involves torque on a quadcopter. hope it helps http://www.eit.lth.se/fileadmin/eit/courses/edi021/Sammanfattning/2008/LP-4/grupp1/rapport.pdf" The first few pages are not in english but if you scroll down there is a...

maybe this will help http://www.howtodothings.com/home-garden/how-to-make-carbon-fiber-parts"

hi all can someone explain me the units of Base oil viscosity of grease? for example is there a difference between grease rated at 200cSt and 200 mm2/s if so then what is the meaning of cSt and what does it stand for? thanks