Bush style avispad build log

Started by prabal276, September 25, 2015, 04:49:44 PM

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prabal276

Hey,
I know that I have a habit of abandoning build threads but I am gonna stick to this one. I am going to build a bush style avispad with custom flaps and some scale features similar to those of pc6 porters.
Got 3 4x1 feet vinyls for 120 bucks.
And got 3and4 mm corro 6x4 for rs 100 and 180 respectively.

prabal276

started the wing.
Images coming soon.

prabal276

they are not getting posted
will post on image sharing website

prabal276

Placed order on rc bazaar yesterday . today will order from hobbyking(testing my luck :D :D :D :D)

prabal276


prabal276


satz flying

Trust yourself

prabal276

Thanks. Waiting forthe stuff from rc bazaar so as to fold the wing and drill holes in motor mount.

prabal276

recieved the stuff .
will be posting images soon

sanjayrai55

Are you putting flaps? They are not really needed

Check some of my builds - you need a piece of ply glued under the corro for the servo mounting screws to grip

prabal276

Yes sir,
I have the ply pieces cut.
I will attach them today.

prabal276

#11
placed order on hobbyking with registered air mail.
i think it is normal for tracking to get updated after 7- 10 days.

prabal276


prabal276

auw is coming around 1200 gms.
allright?

sanjayrai55


prabal276

he he! ;D ;D ;D
next time, ill fill the wings with helium!

prabal276

progress is on. everything almost completed!
pushrods and rudder left!!
Maid. tomorrow. I am having a nervous breakdown that the plane will crash!

prabal276

is elevator flutter fine on high throttle?

sanjayrai55

No control surface flutter is acceptable. Please reinforce these. You could use bamboo skewers or CF rod/Tube

Further, trim the corners at a 45 degree angle

prabal276

no sir not that way!
the whole elevator (incl. the part that do not move)rocks right and left at more than 3/4 throttle.

maahinberi

Hey prabal. Nice build!
Waiti.ng to see video
Maahin Beri - Introduction and Hangar
Seagull Arising Star, Seagull Low Wing 40, AviSport (SPAD), Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.

maahinberi

Quote from: prabal276 on October 26, 2015, 06:34:35 PM
no sir not that way!
the whole elevator (incl. the part that do not move)rocks right and left at more than 3/4 throttle.

A little bit of vibration is fine. You can clearly see the same happening below (Just before hand launch):


And I fly that plane pretty fast. Never faced any control loss at high speeds (which happens when the surface flutters)
Maahin Beri - Introduction and Hangar
Seagull Arising Star, Seagull Low Wing 40, AviSport (SPAD), Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.

prabal276


prabal276

Every thing except rudder and back covering completed

rastsaurabh

Have you put flaps as well ?

regds
Saurabh

prabal276


rastsaurabh


prabal276

@ maahinberi
Yes sir,
it just flutters a bit more! 

prabal276

you see, my motor is a 3536 1100 kv

prabal276

Crashed it.
It was too fast even on half throttle with flaps fully deployed.
would have handled it but ailerons were not trimmed.
Just a new prop and some formers to replace and put landing gears back on.
it was as fast as maahin sir's avisport

sanjayrai55

Its good you tried to maiden it yourself. That's how you learn and become better

prabal276

Yes sir.
will try to repair it and bring it to sec 29 this or next saturday.
just some wooden pieces to replace.
i think the problem was with aoleron trims.

prabal276

The plane was remaidened today!
Sanjay sir flew it for me!
It flew excellent.
He suggested me to add the following to my plane to make it better and stable:
1) Fix the tail wheel clevis to the rudder with the help of a bent plastic peice.
2) Add bolts and nuts to the L.G instd. of self-Tapping screws
3) Fix a 2mm packing under the wing T.E.
Thanks, Sanjay Sir.
Will make the improvements!

Video coming soon!

sanjayrai55

Yup, do the needful, and the model will give you many happy flights

It's very well built for a first effort. Kudos  {:)} {:)}

prabal276

sir now from where do i get nuts and bolts to mount the lg?

sanjayrai55

M3 X 25 Allen Bolts - from the bazaar, where else >:D

prabal276

Sir.
I found out the cause of that jittery sound.
one of the screws that mounted the motor to the motor mounting x was missing and one was loose.
And sir can you share a pic of packing uder the T.E as i am not able to undrstand the setup.

sanjayrai55

No PIC. Just raise the TE about 2 mm w.r.t. the LE with a piece of packing

prabal276

I flew it!!!!!!
IT FLEW!
SO awesome and So slow!!!!!
I will post a vid. ASAP
Sanjay sir, this saturday will we be meeting?

sanjayrai55

OK. 7 am, Sector 29. Please inform Harshil