RC India
Welcome Guest, please login or register.
 
Pages: 1 ... 3 4 [5] 6 7   Go Down
0 Members and 1 Guest are viewing this topic. Topic Tools Topic Tools 
Read
« Reply #100 on: July 25, 2012, 08:40:47 AM »
KALYANPRODHAN
Global Moderator
Forum Hero

*****

Reputation Power: 17 
KALYANPRODHAN has no influence.
Offline Offline

City: Kolkata
State: West Bengal
RC Skills: Intermediate
Posts: 1584
Join Date: Jul, 2010

Information sharing improves knowledge of both.



Hi, VC Sir,If you have 1047 and /or 1138 prop, would you please post your experience, (Flight time, watt, thrust etc. As your baby is a very good floater for it's wing, and you are getting RCPA, JOINT measurement will be really helpful to us.

we are waiting for your video and experience please.
Logged

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.
 

Read
« Reply #101 on: July 25, 2012, 08:57:08 AM »
manojswizera
Plane Lover
Forum Hero

*****

Reputation Power: 18 
manojswizera has no influence.
Offline Offline

City: AURANGABAD
State: Maharashtra
RC Skills: Beginner
Posts: 1336
Join Date: Oct, 2011



Motor - EMax 2822 @ 1250 Kv
ESC - Turnigy 25/30 A
Prop - GWS type 9 X 6
Battery - Turnigy 1600mAh 3S 20 C
Servos - 3 X 9 gram Hextronics
Sir i think Cf2822 will be some under powered.
Logged

Russ-40 Trainer, Mr.moss, Pushler, Skysurfer, Mugi , F-22, Red swan, Xtra-300, redfury, flying mantaray.
 

Read
« Reply #102 on: July 25, 2012, 12:43:51 PM »
Mjet
Plane Lover
Forum Veteran
****

Reputation Power: 5 
Mjet has no influence.
Offline Offline

City: Bhopal
State: Madhya Pradesh
RC Skills: Intermediate
Posts: 265
Join Date: Apr, 2012



Hi VC,

I found some specs for this motor.

Features-

EMAX CF2822Outrunner Brushless Motors

It is the very high power delivered by these small and very robust, but light weight (39g) brushless motors with rotating case suitable for all models of 300-400 size .

Product details

-No. Of cells:2-3 Li-Poly
-RPM/V:1200RMP/V
-ZMax. efficiency 82%
-Max. efficiency current: 7 -16 A (>75%)
-No load current / 10 V : 0.9 A
-Current capacity :16 A/60 s
-Internal Resistance: 150 mohm
-Stator Dimensions: 22x10 mm
-Shaft diameter: 3 mm
-Weight: 39 g
-Recomended model weight :200 -600 g
-Recomended prop without gearbox : APC 7X4 /APC 8X3.8 /APC 9X4.5 /APC 10X5
-Propeller: 10X5
-Max Current:14.5A
-Max Trust: 710g/1.5lb.
Item Packing

Logged
 

Read
« Reply #103 on: July 26, 2012, 10:52:43 AM »
VC
Boat Lover
Forum Hero

*****

Reputation Power: 64 
VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!
Offline Offline

City: Guwahati
State: Assam
RC Skills: Beginner
Posts: 5598
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Approaching the final stages of the build. Control horns cut out from plastic card (wanted this to be a SPAD in every respect, so I didn't use ready made horns), servos (HXT 900) mounted. Windshield attached.

Picture 019.jpg
Re: Avispad Build Log
* Picture 019.jpg (34.94 KB, 600x450 - viewed 600 times.)
This post has 3 more images(s)/attachment(s). Please login or register to view them.
« Last Edit: July 26, 2012, 11:19:42 AM by VC » Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #104 on: July 26, 2012, 10:58:09 AM »
VC
Boat Lover
Forum Hero

*****

Reputation Power: 64 
VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!
Offline Offline

City: Guwahati
State: Assam
RC Skills: Beginner
Posts: 5598
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Wing stays made out of pencil dia bamboo.

Picture 025.jpg
Re: Avispad Build Log
* Picture 025.jpg (25.31 KB, 600x450 - viewed 558 times.)
This post has 3 more images(s)/attachment(s). Please login or register to view them.
Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #105 on: July 26, 2012, 11:13:53 AM »
girishsarwal
Plane Lover
Forum Hero

*****

Reputation Power: 17 
girishsarwal has no influence.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Beginner
Posts: 1420
Join Date: May, 2012

DIYer



Your Avispad looks great VC.

Some help from spadders - Is there a reason why most spads have the aileron servo mounted upright on the upper surface of the wing.

http://www.spadtothebone.net/SPAD/Spadet/Page2/Page19/Page20/Page36/page36.html
http://www.spadtothebone.net/SPAD/Debonair/Page29/page29.html

Doesn't this add to the drag, even if little? If on the other hand this was mounted on the underside, so it can be concealed withing the fuselage when the wing is strapped on (like in most balsa trainers). Is it done to provide clearance to the push rods connecting to the ailerons?
Logged

gs
 

Read
« Reply #106 on: July 26, 2012, 11:26:00 AM »
VC
Boat Lover
Forum Hero

*****

Reputation Power: 64 
VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!
Offline Offline

City: Guwahati
State: Assam
RC Skills: Beginner
Posts: 5598
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Good question Girish. I do it simply for the ease in adjusting the linkage rods. If the servo was on the ventral (wing bottom) side and concealed within the fuselage, it would be a little more difficult to get at.
« Last Edit: July 26, 2012, 11:43:52 AM by VC » Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #107 on: July 26, 2012, 11:38:26 AM »
girishsarwal
Plane Lover
Forum Hero

*****

Reputation Power: 17 
girishsarwal has no influence.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Beginner
Posts: 1420
Join Date: May, 2012

DIYer



Thanks VC, makes sense. unstrapping the wing to make adjustments is pretty bothersome..esp on the field with limited flying time

I will try to mount mine on the ventral (thanks for the new term, is the upper surface called dorsal in that case?) for the J3 build to keep the looks close to the orig. Besides this, do you feel there could be any other reasons...
Logged

gs
 

Read
« Reply #108 on: July 26, 2012, 11:40:49 AM »
VC
Boat Lover
Forum Hero

*****

Reputation Power: 64 
VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!
Offline Offline

City: Guwahati
State: Assam
RC Skills: Beginner
Posts: 5598
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Dorsal = Upper, Ventral = Lower - unless I got them mixed up............... Giggle Huh?
Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #109 on: July 26, 2012, 12:01:39 PM »
girishsarwal
Plane Lover
Forum Hero

*****

Reputation Power: 17 
girishsarwal has no influence.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Beginner
Posts: 1420
Join Date: May, 2012

DIYer



Thanks VC, I'd always mix up the fore and aft. I've added the terms to the rc jargon list. Mod, please advise if that is the right place and if the explanations are correct.
Logged

gs
 

Read
« Reply #110 on: August 03, 2012, 08:48:28 AM »
manojswizera
Plane Lover
Forum Hero

*****

Reputation Power: 18 
manojswizera has no influence.
Offline Offline

City: AURANGABAD
State: Maharashtra
RC Skills: Beginner
Posts: 1336
Join Date: Oct, 2011



Waiting for the flight videos VC sir.  Drool
Logged

Russ-40 Trainer, Mr.moss, Pushler, Skysurfer, Mugi , F-22, Red swan, Xtra-300, redfury, flying mantaray.
 

Read
« Reply #111 on: August 03, 2012, 09:11:02 AM »
SunLikeStar
Forum Administrator
Forum Hero

*****

Reputation Power: 20 
SunLikeStar barely matters.SunLikeStar barely matters.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Intermediate
Posts: 1902
Join Date: Aug, 2010

High spirits we have: gravity we flout.



I will try to mount mine on the ventral (thanks for the new term, is the upper surface called dorsal in that case?) for the J3 build to keep the looks close to the orig. Besides this, do you feel there could be any other reasons...
One advantage of having the servo on the underside of the wing is that it becomes easier to fix the wing on the plane using rubber bands, otherwise you have to fish the band from under the push rods for every loop. Also i prefer to have two servos for ailerons; easier to build and you can program them to have differential throw to counter adverse yaw.
Logged
 

Read
« Reply #112 on: August 03, 2012, 10:46:00 AM »
girishsarwal
Plane Lover
Forum Hero

*****

Reputation Power: 17 
girishsarwal has no influence.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Beginner
Posts: 1420
Join Date: May, 2012

DIYer



One advantage of having the servo on the underside of the wing is that it becomes easier to fix the wing on the plane using rubber bands, otherwise you have to fish the band from under the push rods for every loop.

Absolutely agreed.

Also i prefer to have two servos for ailerons; easier to build and you can program them to have differential throw to counter adverse yaw.
Just finished programming my 9x with the latest er9x. So now I can surely mix some stuff. Cheesy. I also intend to mix some flaperons for this one.

@VC, flight videos sire...



Logged

gs
 

Read
« Reply #113 on: August 03, 2012, 11:24:26 AM »
VinayakR
Heli Lover
Senior Member
***

Reputation Power: 2 
VinayakR has no influence.
Offline Offline

City: New Hampshire , US
State: OUTSIDE INDIA
RC Skills: Beginner
Posts: 161
Join Date: Sep, 2010



Quote
Just finished programming my 9x with the latest er9x. So now I can surely mix some stuff. Cheesy. I also intend to mix some flaperons for this one.

Hi girish ,

Isn't stock firmware V2 of TG9x is capable for misixing ?  Huh? Also can please let me know the advantage of er9x over stock ? I searched could find out only LCD backlight support and easy menu , low voltage alarm is in v2 also.  Head Scratching

-Vinayak

@VC sir : Sorry for putting this question in your log , but it's full of information  Grin like landing gear, servo mounting , flashing tx ..and more..

Logged
 

Read
« Reply #114 on: August 03, 2012, 12:34:44 PM »
girishsarwal
Plane Lover
Forum Hero

*****

Reputation Power: 17 
girishsarwal has no influence.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Beginner
Posts: 1420
Join Date: May, 2012

DIYer



Vinayak sir,

I've started a new thread so we don't put this one off topic.
http://www.rcindia.org/radios-and-receivers/modded-turnigy-9x-for-er9x-firmware/msg110797/#new

Yes the stock fw is capabale of doing quite some mixing, but the er9x has much powerful mixing features and there is a whole list of other things that come with er9x. It wouldn't be justified to put all of it here. Both towards VC and er9x Wink

But here's a cool one - Program a switch to be the trim selector, on a maiden flight, take off, hold the model level using the sticks, and flip the switch. The stick values will be automatically copied to the subtrims. I think the stock fw menu is easier to navigate than er9x. I will compile a list of what I think (my opinion only) is better and post it in the other thread.

Logged

gs
 

Read
« Reply #115 on: August 05, 2012, 12:19:28 AM »
Snehal.Samar
Plane Lover
Forum Veteran

****

Reputation Power: 4 
Snehal.Samar has no influence.
Offline Offline

City: Ranchi
State: Jharkhand
RC Skills: Beginner
Posts: 265
Join Date: Dec, 2010



Hi guys, Smiley

I have a question in mind. What is the need of spar when wings can be made without them? Even i have tried a dihedral wing without spar and it worked fine.

Pic Ss0317 and Ss0316 shows wings without spar ...and  1.jpg shows wing with dihedral without spar.

Thnks
SS

Ss0317.jpg
Re: Avispad Build Log
* Ss0317.jpg (43.67 KB, 600x800 - viewed 336 times.)
This post has 2 more images(s)/attachment(s). Please login or register to view them.
Logged

Snehal Samar
 

Read
« Reply #116 on: August 05, 2012, 02:03:46 AM »
samlikespad
Plane Lover
Forum Hero

*****

Reputation Power: 9 
samlikespad has no influence.
Offline Offline

City: Kottayam (India)
State: Kerala
RC Skills: Intermediate
Posts: 615
Join Date: Jun, 2011



Snehal, I have had wings with spar collapse midair as the stress on them up there is tremendous. Your model looks nice, but once all up, if you try lifting it by the wing tips it might collapse right there. I would not dare to fly it with out proper support to the wing. But if you have devised a way to strengthen it with out spar, please share it with us Wink
Logged
 

Read
« Reply #117 on: August 05, 2012, 03:38:03 AM »
Snehal.Samar
Plane Lover
Forum Veteran

****

Reputation Power: 4 
Snehal.Samar has no influence.
Offline Offline

City: Ranchi
State: Jharkhand
RC Skills: Beginner
Posts: 265
Join Date: Dec, 2010



The wings have suffered extreme hard crashes...bt they are gud to go.No method invented jst used glue gun.I would be glad if i could be of any use.
I wil post the procedure today morning.
Its 3:45 am and i woke up only coz i drank lot of water tonight Grin
Logged

Snehal Samar
 

Read
« Reply #118 on: August 05, 2012, 04:15:48 AM »
samlikespad
Plane Lover
Forum Hero

*****

Reputation Power: 9 
samlikespad has no influence.
Offline Offline

City: Kottayam (India)
State: Kerala
RC Skills: Intermediate
Posts: 615
Join Date: Jun, 2011



Thanks Snehal, what thickness of coro you used for the wing? and do you have ribs inside the wing?
Logged
 

Read
« Reply #119 on: August 05, 2012, 01:02:37 PM »
Snehal.Samar
Plane Lover
Forum Veteran

****

Reputation Power: 4 
Snehal.Samar has no influence.
Offline Offline

City: Ranchi
State: Jharkhand
RC Skills: Beginner
Posts: 265
Join Date: Dec, 2010



Hi,
I dont know xact thickness coz i dont buy them...i collect them.
Measured it and came wid 2.5 mm( bet. 2 and 3 mm).

I made wing with no ones help...but one will be able to do it faster and efficiently with a helping hand.(one will hold wing and one will apply glue).

Anyways, take equal dimension 2 pc coro sanded with circle motion on the places where you will be sticking two pieaces(kalyan Daa's method)

http://www.rcindia.org/tools-materials-and-building-techniques/sticking-coro-how-to/

..and then bend one NOT along flutes (mark '1 inch less than half of coro and bend from there') for desired aerofoil shape(by desired means refer to pic 2)..then tell other hand to hold it while you apply hot glue(follow the pic 1 process) and hold for 10 minutes(needs lots of patience to hold Smiley ,get some music).Remember to insert aileron between those two sheets you will be sticking . (refer pic 3).

Other wing the same way but keep their aerofoils equal .
If you want detachable wing get 3 ribs(ply) for each wing and insert them inside wings( corners and middle or anyway u find efficient). Stick ribs with hot glue. Then with help of carbon rods or any rod attach them like an easystar.
You may also make dihedral with two wings. Just make the dihedral and hot glue between gaps(drops) and wrap with rectangular coro.

Done.
thnks

P.s. My Ms paint skills are hilarious.  Grin

1.jpg
Re: Avispad Build Log
* 1.jpg (40.61 KB, 569x522 - viewed 438 times.)
This post has 2 more images(s)/attachment(s). Please login or register to view them.
Logged

Snehal Samar
 

Read
« Reply #120 on: August 05, 2012, 02:09:18 PM »
samlikespad
Plane Lover
Forum Hero

*****

Reputation Power: 9 
samlikespad has no influence.
Offline Offline

City: Kottayam (India)
State: Kerala
RC Skills: Intermediate
Posts: 615
Join Date: Jun, 2011



Hi Snehal, appreciate your effort and hope that VC bhai don't mind  Giggle .

See, I am not new to SPAD building but your method of not using a spar was surprisingly news to me. Coro wings especially with 2mm/3mm coro flutes cord-wise, does not have the strength to hold without a strong spar. Well, atleast with models those weigh more than a kilo. I haven't built any SPAD which is less than a kilo. So basically my question/doubt was how you strengthened your wing without a spar and how much your plane weighs all up? And do you have a build thread of this plane with more pics and videos?
Logged
 

Read
« Reply #121 on: August 05, 2012, 05:08:12 PM »
Snehal.Samar
Plane Lover
Forum Veteran

****

Reputation Power: 4 
Snehal.Samar has no influence.
Offline Offline

City: Ranchi
State: Jharkhand
RC Skills: Beginner
Posts: 265
Join Date: Dec, 2010



Hi Snehal, appreciate your effort and hope that VC bhai don't mind  Giggle .


Oh no samlikespad ...you have jst pissed him off..you are a dead man ..and so am i  Giggle Giggle

jokes apart ..i get strength to wings with method i posted above..all hot glue magic.

I have made two models(self design) so far but haven't started any build thread. I didnt had time to start that thread at that time.

The AUW for first model(pic above) was 920gms which was flop model ..it flew but was not efficient

(my mom gave it to my cousin's children in my absence and they made it a passenger plane with them as passengers on it  Bang Head. Thank god she took out Esc motor and Battery before Smiley)  ..even though those little devils destroyed my plane ,i love them(its a mama thing). let me post their pic(pic1) so dat u can see how  >Cheesy they are.it can be seen from their face. I think i am too social.

Second model was made from wooden stick AUW 850gms (wid HK donkey motor) ..flew like knife on butter..gud model...disassembled it coz it was ugly .wanted to build something new.

pic 1 shows my second model and pic 2 and 3 shows its fantastic pilot(in blue).pic 2 is a touchdown.

Thanks
SS

0.jpg
Re: Avispad Build Log
* 0.jpg (73.09 KB, 800x600 - viewed 392 times.)
This post has 3 more images(s)/attachment(s). Please login or register to view them.
Logged

Snehal Samar
 

Read
« Reply #122 on: August 05, 2012, 05:19:03 PM »
samlikespad
Plane Lover
Forum Hero

*****

Reputation Power: 9 
samlikespad has no influence.
Offline Offline

City: Kottayam (India)
State: Kerala
RC Skills: Intermediate
Posts: 615
Join Date: Jun, 2011



Adorable devils you have there Wink Your planes, the pilot and the co-pilot looks cool too. If you could find time, please start a thread on them so that we can leave VC in peace with out hijacking his thread Wink
Logged
 

Read
« Reply #123 on: August 05, 2012, 06:24:17 PM »
Snehal.Samar
Plane Lover
Forum Veteran

****

Reputation Power: 4 
Snehal.Samar has no influence.
Offline Offline

City: Ranchi
State: Jharkhand
RC Skills: Beginner
Posts: 265
Join Date: Dec, 2010



Your planes, the pilot and the co-pilot looks cool too.
haha...made my day Grin

so that we can leave VC in peace with out hijacking his thread Wink
@samlikespad. now you are surely a dead man .... Giggle

i wil try to start a thread wid my next models.

Thnks for asking.
Ss
« Last Edit: August 05, 2012, 06:38:42 PM by Snehal.Samar » Logged

Snehal Samar
 

Read
« Reply #124 on: August 05, 2012, 10:10:23 PM »
VC
Boat Lover
Forum Hero

*****

Reputation Power: 64 
VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!
Offline Offline

City: Guwahati
State: Assam
RC Skills: Beginner
Posts: 5598
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Wait till I get you hijackers! Violent

Those kids are awesome! Kiss (the little ones!)

Btw, I have somewhat failed to meet one of targets that I had set for myself for the Avispad ( as posted by me in Page 2 under Post # 27 of this thread). However, I'll leave it for you guys to judge it and comment tomorrow. Wink
Logged

Growing old is mandatory, growing up is optional!
 

Pages: 1 ... 3 4 [5] 6 7   Go Up
Jump to:  

Related Topics
Subject Started by Replies Views Last post
Avispad- My first coro trainer build « 1 2  All »
Electric Planes
ved 29 21851 Last post October 31, 2011, 08:52:49 PM
by ved
Avispad Build Log (Without Dihedral) « 1 2 3 4  All »
Electric Planes
vishalrao 97 42157 Last post October 31, 2012, 02:21:19 PM
by pateldixit58
Build LOG :AVISPAD « 1 2  All »
Electric Planes
Mjet 34 23507 Last post October 29, 2012, 10:05:22 PM
by kartikmadhira
plan build avispad(my first!) « 1 2 3  All »
Electric Planes
kartikmadhira 54 27946 Last post December 17, 2012, 09:38:14 PM
by kartikmadhira
Bush style avispad build log « 1 2  All »
Electric Planes
prabal276 39 24415 Last post February 10, 2016, 03:22:12 PM
by sanjayrai55