RC India

SO its time to upload my dream build now... started my rc hobby just few months before but.. more than anything ornithopters are my favorate and i didnt go for buying one.. instead i decided to make one.. gone through all the website as possible.. didnt find any build log.. :( :(
finaly decided to build my own so that i can make a build log later.. ;D
selected kinkade's slowhawk as my model and started to download as many pictures of that.. using my ideas and  stuffs available locally and started my build few monts back.. :P
the main problem was the gear assembly.. :banghead: :banghead: and searching for proper gears.. i dont want to spent more by getting gears online..
got some help from kazuhiko Kakuta(rcgroups) and models previously submitted in RCIndia as well.. :bow:
now the wing action is almost good in my calculation getting enough trust..
see my video of wings test... and please give your valuable suggestions...
 (:|~ (:|~

http://www.youtube.com/watch?v=JGTNA9Vc5r4&feature=youtu.be

Wow! It looks great!  :bow:

Waiting for more information about the built!  (:|~

Subscribed, and waiting for the build log to come........please make it as detailed as possible

and congrsts for the achievement

thanks jaspreet and bilal...
yeah will make it more clear to understand.. will post the log after the maiden.. :)
anyway the tailpart assembly will finish in a day.. after that will upload the pics...  :) :)

Fantabulous video there..!! Wingspan is also great...Desperately waiting for the maiden video Arun...

Then You will have to help me build mine..!

thanks adi.... and will upload the complete build log later... :)  :thumbsup:

here is a pic of the orni..  :) :)

 

Not only you Adi, but everyone...

I believe most of the folks here are waiting for a successful ornithopter build, and I can sure see one comin' ;)

By the way, Arun Sir.....what is the wingspan, and how many channels this thing uses?

Very true Bilal Sir..!

bilal bhai... it is 3 channel... :)
throttle, rudder, elevator
wingspan is 50"
usnig a 3000kv outrunner with 2s lipo
2 metal gear servos for tail control..
and gear assembly i dont know how to explain it.
my aim was to get almost 5 flaps/sec
tried a lot of combination, and finally i think i am getting it right now... :)

here is the finished ornithopter picture with tail.. will upload tail movement testing video tomorrow...
tail is a bit heavy and planning to change it... this is temporary right now... :):):)

Looks most interesting Arun! Waiting for the video. All the very best

rudder and elevator..  :giggle: :giggle:

thanks sanjay sir.. :)
need all your help to make it fly...

Fantastico!!! Eagerly waiting to watch the bird in action ;-)

nice bird!!
what is the center plate materiel?
How you shaped like a bird?
can you upload the plan?

Super arun... {:)}

the center plate is frp sheet 1.5mm
everything is homemade and using handtools.. knife, hacksaw etc..
i dont have any plan.. simply free hand sketched and cut it out...
will try to upload a plan soon...
thanks

 :) :)
thanks santhosh..  :thumbsup: :thumbsup:

made some modifications to the tail control now its  really smooth.. and the weight reduced a bit...  :) :)

friends increased the tail area,  using wing material.. which decrease the weight of tail to half almost..  :thumbsup: :thumbsup:
watch the video of my complete orni... need to do thrust tests before maiden.. dont know how..  :headscratch: :headscratch:
help me with your suggestions friends..  {:)} {:)}

http://www.youtube.com/watch?v=a1Up25R6YQw&feature=youtu.be

Nice model crafted, Arun.

This might be useful.....

http://www.youtube.com/watch?v=4jKokxPRtck

wow that  was really helpfull rastsaurabh.. thanks for the vid... :)

Nicely Made. It is seems to work perfectly. By the rate of flapping as seen in the video i don't think you need to do a thrust test it seems to have sufficient thrust. it will take to air at ease.

Please take care for the CG. It apparently seems behind than where required. The Lipo which is now located where CG is desired can be move ahead in my opinion.

Fabulous fabrication and crafting. Nicely done waiting for the video.  {:)} {:)} {:)}

thanks a lot sir now the CG is coming about the accurate center i can change it just by moving the lipo..
didnt weigh it yet.. think it will reach almost 500gms  :( :( :( (400 expected)

should i want to keet the CG to 33%?
want to do a stringed test today... will upload the results.. thanks for your support sir..  :P

A unpowered Glide test should give you rough idea about CG. Do it over thick tall grass area.

done gliding test in my home itself over pillows arranged..  :giggle: :giggle:
glides good(i mean not that bad) :headscratch:
one of the guy from rcgroups advised me to reverse the rotation of gears dunno what will be the difference...  ??? ??? ???

best of luck for the maiden  :thumbsup:

thanks yaar.. :)
trying for some foam covering around the body so that it wont hurt in case of a crash..   :giggle: :giggle:

Arun, this build is really looking brilliant 

I just can't wait to see the maiden

congratulations on very very good going

thanks a lot sanjay sir.. i am truly flattered..  :salute: :salute: :salute:
thanks for your support..  :thumbsup: :thumbsup:

Fantastic Arun {:)}

thank you very much sir....

Ready for the maiden.. :)

wingspan: 50"
length    : 33"(including tail)
weight    : not yet weigh( :( :( )
motor     : 3000kv outrunner(30 gms)
gear       : 2 stage gear reduction
servo     : turnigy metal gear servo(13gm)
esc       : 35A yellow ESC
body     :1.5mm frp sheet
wing spars : carbon fiber rods
wing membrane :  polyethylene film

extras : micro bearings, super glues, cycle spokes, bamboo sticks, ice cream sticks, duct tapes, nylon thread, magnetic wires, fevicol, many hand tools etc...etc..etc and a lot of time...  :giggle: :giggle: :giggle: :giggle: :giggle:

Eagerly waiting for the maiden news.

Wishing you all the good luck.

All the very best!

thanks dude... :)
 :) :) :) :) :) :) :) :) :)

All the best Arun: have a great maiden  {:)}. When is it planned? :thumbsup:

thanks a lot sanjay sir, within this week.. need to cover it up with some foam or thermocol for preventing crash damage.. :)
looking up for a way... ??? ??? ??? :)

now she is ready for the maiden.. covered up with some thermocol...
will be maiden it soon... :) :) >:( >:( >:( >:(

made a test flight yesterday... i cant say that it flies good but.. it can fly...There is some imperfections in my mechanism that i ignored or forget... which needs to be done for flying perfect... :headscratch: :headscratch: :headscratch:

Keep at it! It WILL fly! And well.

sanjay sir working on it... will update in sequence...  :salute: :salute: :salute:

nice build.. did it flew?

Still on the building stage... Installed new gear systems.. Now its better.. But not yet ready to fly.. :)
But will i hope..  ??? ???

all the best.. if possible pls upload the plans and some building instructions...

hi arun ,
 how much cost this slow hawk

Slow hawk?

You have mentioned that as the model you based your build on, in your very first post in this thread :)

@anwar: yes ;D
I just really didnt get him while replying..

I just downloaded some pics and started my build..
And also the main inspiration was another build thread in our forum by joydeep bowmik....
He really done a great job...:o

Hai Arun ,

I started to work on ornithopter some weeks ago and I could not find appropriate gears and carbon rod ends in any store  :banghead:  :banghead: . The thing is that I am also not interested in spending much money on buying things online . Can you tell me the place from which you bought the required stuff .

Thank you

where u got all parts

i mean gear assembly

nice work arun chettai..

where's the maiden sir.

It did fly.. was a bad crash in the end.. couldnt record the video that time..
I couldnt control the direction or it didnt worked out really the rudder mechanism..  so i throttled down suddenly to save the bird and nose down..
Didnt get time to rebuild

I am sorry for your loss.