RC India

RC Models => Electric Planes => Topic started by: kiran rc on June 27, 2015, 08:37:15 PM



Title: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 27, 2015, 08:37:15 PM
Building another micro, old foggey with 12 inch wingspan. Expected auw is around 35g-40g.
This plane is going to be 3ch. ;D
Specification
12" wing span
8mm coreless motor
Rcb7x rx (without cover)
Brushed esc
150mah 1 cell lipo
3.7g servo


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: intorc on June 27, 2015, 08:47:29 PM
Will 1s power that rx?


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 27, 2015, 09:21:13 PM
Fuselage sides are cut out from 3mm foam.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 27, 2015, 09:37:46 PM
@introrc, works with 1 cell lipo.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 27, 2015, 09:39:24 PM
Tail section. Hinge is also the depron itself. It is creased and grove is made by cutting the edge at 45degree.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 27, 2015, 10:18:10 PM
Wing part cut out. Ready to join them. The leading edge is folded at an angle for aerofoil shape and make the lift much easier.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: prabal276 on June 27, 2015, 10:37:13 PM
good build... go on!!!
it will be  unstable in wind...
 mine tips over when taxing to the runway(pitch)
you'll have to fly it indoors


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 27, 2015, 10:55:34 PM
Attached both the corner of wing to the centre piece using foam glue at 45degree.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 27, 2015, 11:00:27 PM
@prabal .In no wind it may fly outdoors. I don't think it will have any problem because it's going to around 35grams (auw). And it is also going to be 3 ch.
good build... go on!!!
:thanks:


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 27, 2015, 11:01:55 PM
mine tips over when taxing to the runway(pitch)
you'll have to fly it indoors
Is yours a 2 channel or 3?


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 28, 2015, 08:10:55 AM
Constructing the fuselage. Sides pieces are attached to the center base using foam glue.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 28, 2015, 08:18:19 AM
Added rectangle pieces of depron for strengthening.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: prabal276 on June 28, 2015, 08:36:47 AM
Mine is the real size old fogey,
Three channel and 450gms....
yet it tips over in the lightest winds...
i have problems with it even in one mph winds..
this plane isnt built for winds


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 28, 2015, 09:46:14 AM
Mounted the horizontal and vertical stabilizer. Wing just placed on the fuse.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 28, 2015, 09:56:51 AM
Landing gear added. Landing gear is made of metal wire. Fixed the gear on 1.5mm balsa wood.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: prabal276 on June 28, 2015, 11:30:13 AM
thats clean!!
well done


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 28, 2015, 11:57:47 AM
 :thanks: Prabal


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 28, 2015, 11:59:30 AM
Decals are ready. Cut them from colour stickers.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 28, 2015, 12:31:32 PM
Decals are on the model! Looking good. :D


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: K K Iyer on June 28, 2015, 12:44:52 PM
Looking good. :D

Yes. Beautiful.  {:)}
I'm sure it will fly as good as it looks!


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 28, 2015, 01:47:09 PM
@Yes. It should fly well. ;D
 :thanks:


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: prabal276 on June 28, 2015, 02:27:28 PM
it should,would fly well...
and its beautifull


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 28, 2015, 04:23:51 PM
Servos installed with pushrods.


Title: Re: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: arun.sreelakam on June 28, 2015, 04:35:11 PM
What materal for pushrod?
And which receiver you are using??


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: manojswizera on June 28, 2015, 05:01:50 PM
Looks beautiful, decals made is cute.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 28, 2015, 05:38:04 PM
What materal for pushrod?
And which receiver you are using??
I had a few spare pushrods, just like in skysurfer
Rx is Rcb7x


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on June 28, 2015, 05:42:16 PM
 :thanks: manojswizera


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 01, 2015, 05:16:53 PM
Magnetic wing! Attaching the wing with neodymium magnets!  :thumbsup:


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 01, 2015, 05:21:23 PM
Motor and gearbox with brushed esc.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 01, 2015, 05:34:05 PM
Motor mounts.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 01, 2015, 05:50:38 PM
Mounted the motor.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 01, 2015, 06:16:16 PM
Covered the motor area with foam.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 01, 2015, 06:45:44 PM
Base for magnetic wing attachment. ;D Two washers pasted on balsa.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 01, 2015, 06:49:18 PM
Base attached to the fuselage.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 01, 2015, 07:17:19 PM
Trailing edge lock made using balsa.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: prabal276 on July 01, 2015, 07:45:11 PM
clean,good
 ;D ;D ;D ;D ;D {:)} {:)} {:)} {:)} {:)} {:)} :salute: :salute:


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 01, 2015, 08:19:22 PM
 :thanks: :thumbsup: Prabal


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: K K Iyer on July 01, 2015, 09:55:02 PM
@kiran rc,
Really liked your gearbox arrangement. (And motor mount)
This is classic desi jugaad

We don't have to copy the Chinese model.
Make in India rests on 'desi jugaad by youngsters like you!
Keep it up.
Regards


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 01, 2015, 10:40:04 PM
@ K K Iyer sir, thank you very much for the compliment. Actually seniors like you, give the motivation and inspiration sir.
Thanks again :bow:
One more jugaad that is the brushed esc out of servo motor ;)


Title: Re:
Post by: rcrcnitesh on July 02, 2015, 06:38:29 AM
Can you elaborate more on that subject.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 02, 2015, 07:05:27 AM
@rcnitesh, do you mean the esc?


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: sundaram on July 02, 2015, 11:34:15 AM
Desi Jugad Brushed ESC from servo motor control circuit is reversible if you keep POT centered.

For this model you can make it unidirectional by replacing the POT with a single qtr watt resister of same value between the two extreme pins and shorting the center pin to one extreme pins.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: romanxdsouza on July 02, 2015, 02:34:12 PM
Nice build superb...... just becareful of auw, motor should not be underpowered....keep checking on weight and reduce as much as possible....wish you  all the best :hatsoff:


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 02, 2015, 04:06:17 PM
Desi Jugad Brushed ESC from servo motor control circuit is reversible if you keep POT centered.

For this model you can make it unidirectional by replacing the POT with a single qtr watt resister of same value between the two extreme pins and shorting the center pin to one extreme pins.
Thank you for that!


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 02, 2015, 04:07:07 PM
 :thanks: roman
The estimated auw is 35-40gram with 5" prop. Should give some nice thrust.  ;)


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: prabal276 on July 02, 2015, 05:26:09 PM
vvvvvvvvv.good build....
its awesome
i hope that it flies good and wins you a price in the sweepstakes


Title: Re:
Post by: rcrcnitesh on July 02, 2015, 06:15:57 PM
Yes Kiran I am asking about the esc.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 02, 2015, 06:28:42 PM
Prabal thanks you very much.  :hatsoff: The thrust should be around 60 gram.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 02, 2015, 06:33:39 PM
Yes Kiran I am asking about the esc.
The esc is quite simple. The control board from inside the servo motor is taken out with POT. The POT should be centered and it can be used as brushed esc. Only for micro pager motors. If connecting for a larger brushed motor 1 or 2 mosfets can be added. Current amp of this esc is less than 500ma


Title: Re:
Post by: rcrcnitesh on July 02, 2015, 06:58:20 PM
Thanks bro.
From where did you get the 7mm pager motors?


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 02, 2015, 07:10:58 PM
Rcnitesh,I have couple lying around. Got them long back. They are from toy helis.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 04, 2015, 10:44:42 PM
Got some time to complete the fogey. Here the prop and lipo. :)


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 04, 2015, 10:47:45 PM
Made servo holder using 3mm balsa. This is made to hold the servos in place so that they wont move while operating.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 04, 2015, 10:49:01 PM
Micro fogey next to my Rcb7x.


Title: Re:
Post by: rcrcnitesh on July 05, 2015, 07:11:04 AM
Come on maiden video please.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 05, 2015, 07:21:22 AM
Come on maiden video please.
Sure nitesh, having some heating issues with esc. Will maiden as soon as possible.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 05, 2015, 08:23:08 AM
Esc heating resolved.  Auw~50 grams.


Title: Re:
Post by: rcrcnitesh on July 05, 2015, 09:13:48 AM
I really love that thing, if I can manage to get 7mm motors then I'll build that.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: rcrcnitesh on July 10, 2015, 09:32:46 PM
Kiran, one question regarding the build, can I use the motor which comes in 9gram servos for this purpose.


Title: Re: micro old foggey 12inch, for 2015 RcIndia sweepstakes
Post by: kiran rc on July 10, 2015, 09:51:35 PM
Yes sure. But do a test before you mount. I would recommend coreless motor as it lasts long and is much efficient than a cored motor.But as you have one,you may try for sure. :thumbsup: