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
Will 1s power that rx?
Fuselage sides are cut out from 3mm foam.
@introrc, works with 1 cell lipo.
Tail section. Hinge is also the depron itself. It is creased and grove is made by cutting the edge at 45degree.
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.
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
Attached both the corner of wing to the centre piece using foam glue at 45degree.
@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.
Quote from: prabal276 on June 27, 2015, 10:37:13 PM
good build... go on!!!
:thanks:
Quote from: prabal276 on June 27, 2015, 10:37:13 PM
mine tips over when taxing to the runway(pitch)
you'll have to fly it indoors
Is yours a 2 channel or 3?
Constructing the fuselage. Sides pieces are attached to the center base using foam glue.
Added rectangle pieces of depron for strengthening.
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
Mounted the horizontal and vertical stabilizer. Wing just placed on the fuse.
Landing gear added. Landing gear is made of metal wire. Fixed the gear on 1.5mm balsa wood.
thats clean!!
well done
:thanks: Prabal
Decals are ready. Cut them from colour stickers.
Decals are on the model! Looking good. :D
Quote from: kiran rc on June 28, 2015, 12:31:32 PM
Looking good. :D
Yes. Beautiful. {:)}
I'm sure it will fly as good as it looks!
@Yes. It should fly well. ;D
:thanks:
it should,would fly well...
and its beautifull
Servos installed with pushrods.
What materal for pushrod?
And which receiver you are using??
Looks beautiful, decals made is cute.
Quote from: arun.sreelakam on June 28, 2015, 04:35:11 PM
What materal for pushrod?
And which receiver you are using??
I had a few spare pushrods, just like in skysurfer
Rx is Rcb7x
:thanks: manojswizera
Magnetic wing! Attaching the wing with neodymium magnets! :thumbsup:
Motor and gearbox with brushed esc.
Motor mounts.
Mounted the motor.
Covered the motor area with foam.
Base for magnetic wing attachment. ;D Two washers pasted on balsa.
Base attached to the fuselage.
Trailing edge lock made using balsa.
clean,good
;D ;D ;D ;D ;D {:)} {:)} {:)} {:)} {:)} {:)} :salute: :salute:
:thanks: :thumbsup: Prabal
@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
@ 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 ;)
Can you elaborate more on that subject.
@rcnitesh, do you mean the esc?
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.
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:
Quote from: 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.
Thank you for that!
:thanks: roman
The estimated auw is 35-40gram with 5" prop. Should give some nice thrust. ;)
vvvvvvvvv.good build....
its awesome
i hope that it flies good and wins you a price in the sweepstakes
Yes Kiran I am asking about the esc.
Prabal thanks you very much. :hatsoff: The thrust should be around 60 gram.
Quote from: rcrcnitesh on July 02, 2015, 06:15:57 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
Thanks bro.
From where did you get the 7mm pager motors?
Rcnitesh,I have couple lying around. Got them long back. They are from toy helis.
Got some time to complete the fogey. Here the prop and lipo. :)
Made servo holder using 3mm balsa. This is made to hold the servos in place so that they wont move while operating.
Micro fogey next to my Rcb7x.
Come on maiden video please.
Quote from: rcrcnitesh on July 05, 2015, 07:11:04 AM
Come on maiden video please.
Sure nitesh, having some heating issues with esc. Will maiden as soon as possible.
Esc heating resolved. Auw~50 grams.
I really love that thing, if I can manage to get 7mm motors then I'll build that.
Kiran, one question regarding the build, can I use the motor which comes in 9gram servos for this purpose.
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: