2nd prototype, test #1 - baby hiller flying platform

[Wmaximum]

Он же перевернётся нафик )

[MRguitarDUDEmatt]

try making it lighter by making the landing gear out of carbon fibre sticks it will help trust me

[SierzantYelonek]

too much weight on top

[squidlipz08]

have you got a gyro on there??? it will help stabilize with control surfaces and you would only ned small ones, you will however have trouble with the inital take off but it can be perfected keep it up!!

[TheSkiddey]

there's a reason why the military abandoned research for this type of flying vehicle.. way to unstable for todays technology with it being so top heavy. you want the props to pull the weight, not push. thats why the props on a plane are in front or above the center of mass.

[chrisfigueroa2010]

Dude you need stabilizers !!!!!!!!!!!!!

[mythtical100]

U could use that to spy on someone if u could get the motor to be slient and if its actually able to take off

[DragonToko]

I tried stuff like that before - two opposite propellers are not that efficient. Better use them side by side. Check my video "Strange thing crash" i did in july 2007.

[2cavas]

Come on look at that fucking huge antenna!

[martinjeff2]

good way to dry the floor

[ichmussfurzen88]

there is a drumset in the background!

[invazorxxx]

jajaja XD XD

que tipo de motor usas?

[theCookieMonster9999]

your center of trhust is way below your center of gravity. I don't mean to be throwing big terms at you, but the cg should ALWAYS be below the CT.

[ioan21121221]

@theCookieMonster9999 the hiller flying platforms cg was above ct. this is a model of the hiller flying platform. cg of rockets is also above their ct.

[emorjon2]

why does the robot shut down the propeller when it just is in the air successfully

[GreenAce92]

I think you may be "top heavy"

[dangerdave059]

think your blades are on the wrong way

[qwertyboy1234567899]

wouldn't want to put your hand in that!

[ruvyk]

Since I can construct one like yours or that looks alike?

[claycraigo]

holly shit

[ronmann606]

No thrust! It needs a cowl.

[DragonToko]

@ronmann606 Cowl will be too heavy compared to gained effeciency. I tried stuff like that, made cowl out if thin carbon fabric layer.

[ubiotelepathies]

Dude the antenna is too heavy, get rid of it,

[jsalathe]

I worked on this technology in the early 90's. A cowl with an absolute minimal gap will increase your thrust dramatically, particularly when you leave ground effect. That is, when the height of the props above ground are .5 times their length.

The gap between the tip of the prop and the cowl should be as close to zero as possible. For efficiency Hiller tacked carpet to his prop tips so there was essentially no space at all. Love seeing someone take this up again. Keep it going!

[jsalathe]

The Hiller Flying Platform was a ducted fan, not an upside down helicopter. Aerodynamic efficiency is greatly reduced as the length of the blade is reduced. To make up for this it must be ducted. For this device I would recommend two layers of carbon fiber laid up around a foam core. It's actually super easy to make, just use a pipe PVC pipe of the proper diameter as the layup mold for the interior of the cowl and the exterior can be imperfect. It will not add much weight and will be very stiff.

[jsalathe]

I worked on this technology in the early 90's. A cowl with an absolute minimal gap will increase your thrust dramatically, particularly when you leave ground effect. That is, when the height of the props above ground are .5 times their length.

The gap between the tip of the prop and the cowl should be as close to zero as possible. For efficiency Hiller tacked carpet to his prop tips so there was essentially no space at all. Love seeing someone take this up again. Keep it going!