RCPowers Extra 300 using 3mm coro

Started by azhaguvel, May 17, 2011, 08:42:37 PM

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azhaguvel

This has already been attempted by one of the member here.

Now I am going to give it a try.

Rcpowers Extra 300
3mm coro
4*9gms hxt900 servos
motor: 2210N 1000Kv Brushless Motor+GWS9050
Battery : 610 mah rhino 3S
cycle spokes for push rods
The elevator alone has a coro hinge

KALYANPRODHAN

Nice,
I am making a similar simplest one. Glided well with weight. Now total electronics attachment is pending. Will post if it fly.
We have to unite and to prove ourself to make indigenous products as well as marketing / Canvasing them. I'm sure we must achieve success if we try unitedly.

AEROVISHWA

can you post the site you got the plan from.... planning to build 1 soon...
Aerodynamics are for people who can't build engines.
-Enzo Ferrari

https://sites.google.com/site/vishveshkakkeri93/
HAPPY LANDINGS

KALYANPRODHAN

Quote from: R/C vish on May 17, 2011, 11:02:07 PM
can you post the site you got the plan from.... planning to build 1 soon...
The plan is available at the pics. Follow the 2' tile.
Length: 36" (91.5 cm)
Wing Span: 35.5" (90 cm)

Plan here :
http://www.rcgroups.com/forums/showatt.php?s=30ee501edc4d6d894d291e1f48fff931&attachmentid=3739667&d=1295452069
We have to unite and to prove ourself to make indigenous products as well as marketing / Canvasing them. I'm sure we must achieve success if we try unitedly.

azhaguvel

Kalyan are you trying with coro or depron?

KALYANPRODHAN

We have to unite and to prove ourself to make indigenous products as well as marketing / Canvasing them. I'm sure we must achieve success if we try unitedly.

azhaguvel

Kalyan whats your idea about the servos installation.
I am planning to put the elevator and rudder controls close to the tail. what do you think?

I am planning to use one servos for the aileron controls and very confused where to put the servos man. The aileron control horns needs angle since I am using only one servo so I am not sure about the angle. Which is the best place to put the aileron servo on the top or bottom?
Can you tell me about your power plant

KALYANPRODHAN

Fixing with double sided glued foam tape with coro. keeping servos near to wing end. just behind 6" from aileron servo.
Making Motor mount with coro fixed with screw, nuts & washers with fuselage.
Making POM Horns with steel wire.

Motor Emax CF2822 ,
1060 prop
Turnigy Plush 25A ESC
9gm servo- Aleron-1
5 gm servo - For rudder & Elevator.
Turnigh 1AH, 3S 25-35C battery.

But I have no power plant ;) .
We have to unite and to prove ourself to make indigenous products as well as marketing / Canvasing them. I'm sure we must achieve success if we try unitedly.

AEROVISHWA

can you post pics of how the motor is mounted...!!! :headscratch: :headscratch:
Aerodynamics are for people who can't build engines.
-Enzo Ferrari

https://sites.google.com/site/vishveshkakkeri93/
HAPPY LANDINGS

azhaguvel

vish I used hot glue gun to glue everything. The motor mount is made of two square coro sheet with flutes perpendicular to each other sandwiched between two pieces of sim card plastic. I used tooth picks with rubber bands to mount the motor and inserted a tooth pic in an angle to get the motor faced down and angled to right just like dave said  ;D.

here is my completed plane waiting for maiden.

azhaguvel

all the electronics are sticked using double side tape and the battery is sticked and then ziptied. I used re-inforcement for the front fuse and the place where the battery is mounted.

All the control rods are cycle spokes. Notice the aileron control rods are angled first then turn straight to the reach the aileron horns.

I am sure you can build it better  :giggle: .


My doubts.
1. How can i make a perfect z bends I always end up getting more space for the servo arms to play.
2. How to launch it ?

azhaguvel

and ya the control horns are made of sim card

anwar

Interesting motor mount :thumbsup: 

Please post some more clear and detailed pictures of the motor mount from various angles here :

http://www.rcindia.org/tools-materials-and-building-techniques/how-to-mount-electric-motors-on-foamies/
Hangar : Please see my introduction.
RC India forum and me : About this forum.

azhaguvel

 :headscratch: Anwar are you telling the use of coro motor mount is new or the rubber band style is new  :headscratch:. The rubber band style with the tooth pick is followed by many. I saw that from rcpowers dave's videos(he is my role model  :bow:).

anwar

I am just trying to document the whole of this particular setup here on RC India.  It may exist 100s of times in other places ;)

PS: Pardon me... a lot of what I post/ask is to simulate discussion and/or to generate more informational content for the forum !
Hangar : Please see my introduction.
RC India forum and me : About this forum.

AEROVISHWA

Aerodynamics are for people who can't build engines.
-Enzo Ferrari

https://sites.google.com/site/vishveshkakkeri93/
HAPPY LANDINGS

azhaguvel

thanks vish. Will see the video when I reach home. In office I cant see the video sinces its blocked. The second link needs that clamp unit(I dont know its exact name).

How is you build going?

AEROVISHWA

Quote from: azhaguvel on May 25, 2011, 04:47:31 PM
. The second link needs that clamp unit(I dont know its exact name).

its called a bench vise(or wise) if u in to nitro u will compulsory need one....

i am into nitro and not in electrics yet the thing i asked you for the mountin and the plan was i am planning to get into electrics(gathering some knowledge) and was always curious on how a motor was installed in a plane like the above and pusher jets...!!!

thanks for the photos..!!
Aerodynamics are for people who can't build engines.
-Enzo Ferrari

https://sites.google.com/site/vishveshkakkeri93/
HAPPY LANDINGS

azhaguvel

Ok I watched the video. But I do the exact thing using my nose plier may be I should be carefull next time.

KALYANPRODHAN

Hi,
here is the pictures.
Pic 1. Initial Motor Mount.

Pic 2. Modified Motor Mount.

Pic 3. Initial Horn made with coro & Ball point pen refill (Glued with Rubber based Adhesive, Dendrite).

Pic 4. Modified horn - Made by James Clip wire. (Please note that inserted from reverse side of coro flute cut, Otherwise horn will came out.

We have to unite and to prove ourself to make indigenous products as well as marketing / Canvasing them. I'm sure we must achieve success if we try unitedly.

KALYANPRODHAN

More pictures :

Pic1. Aleron Servo, Extended horn (GI Wire 16 Guage & James Clip wire pushrod.)

Pic 2. Elevator & Rudder Horn.

Pic 3. Elevator & rudder servo mount. (Stitched with Polyester thread.)

Pic 4. Complete Plane.
We have to unite and to prove ourself to make indigenous products as well as marketing / Canvasing them. I'm sure we must achieve success if we try unitedly.

azhaguvel

cool buddy motor mount and control horns are nice idea.

azhaguvel

Me and sreedhar did the maiden today. Didn't had a camera to video it. Wow cool plane for flying. If you are starting scratch building this is the easiest and forgiving plane. Can be build within 3 hrs. It flys awesome. Broke 2 props :( and the motor mount came off during a crash when I tried with a smaller prop(Just one more flight attitude). Will post a video of the second flight next week :).

azhaguvel

Awesome plane

Easy build A+
manuvarability A+ (mine c)
forgiving A+


here is the video will post more tonight


rohitgupta322

Good job. Even I have recently completed an Extra 300. It has flaps and spoilers. Have also done 6 flights. Will post the plane and video shortly.
Be Inquisitive