Kylie / non-returning boomerang - distance

[2011-08-03]
Non returning boomerang made from the base of the trunk of a yew (I found the little tree already cut down by forest workers).

I tried to make this kylie fly over a "long" distance (~ 76m) by using only rather primitive ways, but I couldn't do it entirely (sticky tape, varnish, ...).

[[I followed - or adapted - advice given by user "pucikam"]].

Measuring a flight distance is not so easy, fortunately G**gleEarth can do it !

Category:

Film & Animation

Tags:

• Primitive
• rabbit
• stick
• bâton
• de
• jet
• killing
• throwing
• kylie
• karli
• ブーメラン
• бумеранг
• hunting
• boomerang
• bora
• bumarang
• karaban
• non-returning
• throw-sticks
• wara:ngany
• bumariñ
• كيد
• בומרנג
• 飞去来器
• preistorico
• prehistoric
• préhistorique
• prehistory
• prehistorico

[pucikam]

it is quite possible that the air resistance is important, but then the kylie must be big enough to keep the rotation. what are the measures and the weight-- I couldn´t see it on the video?

[freejutube]

@pucikam

global length : 64 cm ; weight = ~415 gr

I just tried with some lead (various weights, various distance from the end of the leading wing) : results may have been better, sometimes, but it is was not very clear. I also got some flat trajectories and some strange kind of flight (the speed seemed to vary during the flight !!).

[freejutube]

thank you !

I have still to find some lead ... Meanwhile, I also tried :

- with some metallic nuts that I had at hand : less air resistance, but results were a bit worse than with the stone ;

- with only air resistance (tape only or tape+string) : a bit worse, not that much, depending on the wrapping and its position;

Can it be that in some cases the air resistance is more important than the added weight ?

[edbapemo]

Hint : Lead tape. Could have been 100 meters.

[freejutube]

@edbapemo

thanks,

I have to try that, and also find a bigger and safer place : some people may unexpectedly appear within the range of the kylie during the 5 or 6 seconds that will last the flight ;

[steintanz]

I really like your projects: there is sth very scientific, yet practical to them. And they show the enormous amount of knowledge or trial & error that had to go into the so called primitive techniques.

[ROBwithaB]

I am following your experiments with keen interest.

[pucikam]

congratulation! did you load only with the piece of stone or did you try a flat piece of plumb- air resistance ?