RC India

After making the champ, thought to reduce the size and make a slowflyer out of balsa.
Specification
5" wingspan
1.75" chord.
1.5 mm balsa
4mm gearbox
2ch tx rx
30mah lipo
50ohm act.
Finally, aiming for weight under 5g!!!

Below,Cutting out the tail fins.

Covering using thin plastic sheet and CA.

Best of luck friend!!

Which TX RX??

 :hatsoff: Prabal

@sundram sir,Most probably the Microsystems from hk. ;D

Covering is done by stretching the plastic and applying CA.
Tail fins glued.

Cool  :thumbsup: :thumbsup: At 5" WS its a tough bargain. All the best.

@kiran rc,
Good project.
Why not use tissue paper instead of plastic sheet?
You can get a smooth taut surface, by shrinking the tissue with water spray.
Best wishes.

Making the wing. Ribs are bent to structure and glued. The covering of the wing is done in the same way of that of tail fins. One thing to make sure that the plastic sheet should be crumbled so that the sticking becomes easy.

@sundram sir, I had already tried 9" span so thought to try this. Hope it flies well. :)

Iyer sir, tissue is not as strong as plastic. My last model with plastic covering flew great.  If I will use tracing paper kind of covering then I think it will be heavy.  :)

Good start Kiran  :thumbsup:
5" is too small, it has to be a micro micro flyer!! weight is the biggest challenge here. You have to keep it as minimum as possible! Which motor are you using and what prop? Could you please post the link of the micro rx you are using?

@mmet2ami Thankyou,  :) you can checkout the Microsystems under radios and receiver section at hobbyking.There are a lot of rx and modules under that section.  :)

Wing covered and completed!

superb all the best you have to go super light .......whats the electronics total weight ......i suggest make it a free flight

Fuse stick is 1.5x2mm, glued to the tail section. Wing mounts/holder is attached to the stick.

Roman, thanks :)
Approximate weight
Airframe-0.5g
Motor with gb-1.1g
Rx-0.5g
Actuator-0.25g
Lipo-1 g
Misc-0.5g
Total- 3.85g
Approx. Auw wouldn't exceed 4 g :)

Wing mounted and the airframe is ready for electronics.

Another picture l, next to a pen to compare sizes. ;D

well all i can say is.......you are doing well all the best...

Target AUW of 4gms is ideal for your build. All the best.

Thanks sir :) will surely keep it as light as possible.

Weight-0.49g! ;D

nice ...great kiran you are 1 1/2inch smaller than the Plantraco Butterfly livingroom flyer :thumbsup: :thumbsup: ..... it weighs 3.8gram ,so like sir sundaram said 4grm is your lucky num. even lesser better.

Ok.trying to reduce the weight. Here's the new calculation.
Motor with gb 1g
Lipo 20mah- 0.7g
Rx-0.3g
Airframe-0.50g
Actuator-0.2g
2.7g+0.3misc
New weight is 3g!
Would practically weigh all the things and post a pic here.

Weight of electronics.

Excellent liran rc {:)} {:)}

Thanks gaurang :)

Close up of electronic connections.

Making the gearbox. Gears are taken from old broken servo motor.

Mounting the rx. The board is glued to the to the stick by CA.

Actuator is made by using magnet wire from electronic coil. The coil is around 50ohms.Magnet for the actuator is from old micro brushless motor.

you are awesome.very nice build log keep it up brother.all the very best for the maiden.

Control surface (rudder) is cut from 0.5mm balsa wood and the magnet is glued to the rudder.

Thanks shijin sir. Maiden will be done tomorrow.  :)

Control surface attached using thin cello tape(acts as hinge).

Awesome job mate!!  :bow: Waiting to see the flight video!!

Meet2ami, flight test will be done today. :)  :thanks:

Total weight.

I am impressed. Too good

Wow! Tried to fly it in my home, just awesome! Tight turns. Will upload the flight video today!

Sundram Sir,  :hatsoff: flew as expected!

Update: removed the gearbox to direct drive as there were some issues with the prop. Now I am using a cheerson quad's prop.

Here is the maiden :)

https://www.youtube.com/watch?v=x0qCTqAlDPc

That's super fast Super cool.  :thumbsup: :thumbsup:

Kiran I could say you have crossed another mile stone here in Rcindia. Congrats for the maiden. Very good job. Keep it up. I am sure soon we all will see a sub-gram plane from you. Nice video.

Regards

Outstanding achievement!
Both build and flying.
 :hatsoff:

awsome built {:)} kiran

.....its so fast ! surprising that its still holding together after the flight !!!

i'd like to build one of these ! nice one  {:)}

 

 :thanks: Sundram sir.
 Thanks  GD:) Actually, even I am planning for sub gram plane in the near future. :thumbsup:
Thanks, Iyer Sir :)
@Jana Thanks. Your builds are too good :)
@bmblb sure you may. Thank you :)

Really very very good  {:)}

 :hatsoff:  Sanjay sir.

I think we have our 6th sweepstakes winner  ;D  :thumbsup:

Wishes

Sahil

 :bow: :hatsoff: :bow: :hatsoff: super duper ..........build ......good flying for that speed  excellent kiran keep it up .... i thinks thats the smallest on rci....great job....keep them comming

Good to see another buddy of my age
You are too good man. That type of flying is not easy
this is one of the wonderful scratch builds in the sweepstakes
Hope you win :thumbsup:

Thanks,sahilkit sir. :)
 :hatsoff: roman.
Darshan thanks. It's a little fast but it's fun to fly indoors :D

Superb build kiran :thumbsup:

 :thanks: RCNeil21

Awesome!!! Would like to see your plane once

@foamy builder, thanks :). Sure you may!

That was awesome Kiran... nice little plane and nice maiden. :thumbsup: :thumbsup: :thumbsup:

 :thanks:@learner