RC India
Welcome Guest, please login or register.
 
Pages: 1 [2] 3 4 ... 7   Go Down
0 Members and 1 Guest are viewing this topic. Topic Tools Topic Tools 
Read
« Reply #25 on: July 08, 2012, 11:41:25 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: 5592
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Thanks Sam!

I gave it the works. Squirted hot glue at the spar joint, held it down at the dihedral angle. After it had set, I sealed the cut that I had made on the wing chord with hot glue again. Anyway, now with epoxy and wooden braces, it is way stronger.
« Last Edit: July 12, 2012, 03:09:05 AM by KALYANPRODHAN » Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #26 on: July 08, 2012, 12:18:51 PM »
samlikespad
Plane Lover
Forum Hero

*****

Reputation Power: 9 
samlikespad has no influence.
Offline Offline

City: Kottayam (India)
State: Kerala
RC Skills: Intermediate
Posts: 597
Join Date: Jun, 2011



VC, two things I noticed about the wings from the pics:

1: The LE seems to be very blunt! You could have easily created a nice curve there. I think you added an extra score line and it bent from there. Next time, you could use a long ruler or aluminium flat piece  close to the LE to pin/hold the bottom piece to the ground while you curve the upper piece and glue. Hold it using weights ( I use tables or chairs and some times I ask my little ones to sit on the chair Cheesy ) on both ends of the wing until the glue dries.
2: The TE seems like glued with hotglue/epoxy. Hot glue might not hold and either one of them could add a lot of weight. CA can do the job if you clean/sand the surface and apply moderately.
« Last Edit: July 12, 2012, 03:22:12 AM by KALYANPRODHAN » Logged
 

Read
« Reply #27 on: July 08, 2012, 12:30:06 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: 5592
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



1. That is a smashing idea and I must try that on my next build. Unfortunately, I don't have any little ones - just one big monster who is my helping hand when it comes to building. She knows her ESC's and Prop Dias and is invaluable when it comes to things like soldering. Just showing off, a proud Dad after all. Smiley

2. The T.E. has been joined with C.A. I just wanted some added strength so was trying to weld the coro.

As per your advice, I am way below the ideal A.U.W. of 1.2 - 1.5 kgs. At the moment I am maxing out at about a Kg, therefore taking my chances with additional reinforcements.

Trying to build an ugly plane that I won't be too scared of crashing. After all, SPADs die hard!

Your observations / comments are a GREAT help, please continue as I post. Thumbs Up
« Last Edit: July 12, 2012, 03:22:30 AM by KALYANPRODHAN » Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #28 on: July 08, 2012, 01:03:39 PM »
samlikespad
Plane Lover
Forum Hero

*****

Reputation Power: 9 
samlikespad has no influence.
Offline Offline

City: Kottayam (India)
State: Kerala
RC Skills: Intermediate
Posts: 597
Join Date: Jun, 2011



Indeed nice to have a helping hand Smiley VC, the blunt LE bothers me Sad may be our forum heroes can enlighten us on that part). By the way, what is the power setup you intend to use?
« Last Edit: July 12, 2012, 03:22:52 AM by KALYANPRODHAN » Logged
 

Read
« Reply #29 on: July 08, 2012, 01:10:32 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: 5592
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Shooting it back to you - what is your opinion of the CF 2822 motor @ 1250 Kv spinning a 8 X 4 prop? Good enough? Or else a 900 Kv with a 9 X 5 prop?

Master you have me worried about the LE now  Bang Head. Let me see if I can rectify it or else I'll just take my chances. Have seen worse flying beautifully............. Giggle
« Last Edit: July 12, 2012, 03:23:11 AM by KALYANPRODHAN » Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #30 on: July 08, 2012, 01:14:44 PM »
manojswizera
Plane Lover
Forum Hero

*****

Reputation Power: 16 
manojswizera has no influence.
Offline Offline

City: AURANGABAD
State: Maharashtra
RC Skills: Beginner
Posts: 1312
Join Date: Oct, 2011



Vc sir , just a small suggestion.
bend a cycle spoke according to the dihederal angle ( 2 spokes ) put one above the wing and other at the botom.
pass it through the white flutes ( the joiner at junction of wings ). and just hot glue it.
This will help the wing to stay in its dihederal shape, and if the wing collapse also. it will hold it due to the tension of the wire.
and will not add much weight.

manoj
« Last Edit: July 12, 2012, 03:23:31 AM by KALYANPRODHAN » Logged

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

Read
« Reply #31 on: July 08, 2012, 01:20:57 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: 5592
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Thanks Manoj. Have tried that technique on my earlier Coro builds and it worked very well. This time I did not want to deviate from the techniques suggested by the designer Bex.
« Last Edit: July 12, 2012, 03:23:51 AM by KALYANPRODHAN » Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #32 on: July 08, 2012, 01:37:59 PM »
samlikespad
Plane Lover
Forum Hero

*****

Reputation Power: 9 
samlikespad has no influence.
Offline Offline

City: Kottayam (India)
State: Kerala
RC Skills: Intermediate
Posts: 597
Join Date: Jun, 2011



Shooting it back to you - what is your opinion of the CF 2822 motor @ 1250 Kv spinning a 8 X 4 prop? Good enough? Or else a 900 Kv with a 9 X 5 prop?


VC bhai, that might be a bit under powered and you might end up fighting to balance the plane. I have the bad habit of over powering my planes and last time I remember putting a 3542 1450kv on it  Giggle IMHO a 2826 should be a better option. Its a 3 pound plane and you need some thing like 300W (or plus  >Cheesy ) for decent performance.
« Last Edit: July 12, 2012, 03:24:11 AM by KALYANPRODHAN » Logged
 

Read
« Reply #33 on: July 08, 2012, 02:01:19 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: 5592
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Thanks, I have a 1500 kv DYS (250 watts) sitting around somewhere. If I can keep the weight to 1 Kg, that should suffice.

These calculations are based on over estimation of weights:

Basic airframe : less than 450 grams - ACTUAL.
Battery (2200mAh 3S) : 190
Motor : 60 grams (if I choose a heavy motor)
Esc : 30 gms
Rx : 15 gms
3 X 9 gm servos = 30 gms
Landing gear = 100 gms (heavy!!!) Giggle Giggle

Other accessories = 100 gms (motor mount, push rods, servo horns etc)

AUW is still under a Kg. (975 grams)


« Last Edit: July 12, 2012, 03:27:27 AM by KALYANPRODHAN » Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #34 on: July 08, 2012, 02:09:06 PM »
samlikespad
Plane Lover
Forum Hero

*****

Reputation Power: 9 
samlikespad has no influence.
Offline Offline

City: Kottayam (India)
State: Kerala
RC Skills: Intermediate
Posts: 597
Join Date: Jun, 2011



Wow VC, thats an amazing AUW  Clap But keep an eye on the balancing part.
« Last Edit: July 12, 2012, 03:25:17 AM by KALYANPRODHAN » Logged
 

Read
« Reply #35 on: July 08, 2012, 02:21:14 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: 5592
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Wilco! That's why I took the liberty of strengthening the fuselage with additional bulkheads made out of high density thermocole.
« Last Edit: July 12, 2012, 03:25:34 AM by KALYANPRODHAN » Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #36 on: July 08, 2012, 02:31:23 PM »
samlikespad
Plane Lover
Forum Hero

*****

Reputation Power: 9 
samlikespad has no influence.
Offline Offline

City: Kottayam (India)
State: Kerala
RC Skills: Intermediate
Posts: 597
Join Date: Jun, 2011



Interesting!  Salute
« Last Edit: July 12, 2012, 03:25:52 AM by KALYANPRODHAN » Logged
 

Read
« Reply #37 on: July 12, 2012, 12:30:30 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: 5592
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



I have sent 2 PM's to the honourable Administrator to rename this thread as the "Avispad Build Log". He must have missed them. However, construction continues, more pictures soon. Please bear with me.
Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #38 on: July 12, 2012, 03:34:28 AM »
KALYANPRODHAN
Global Moderator
Forum Hero

*****

Reputation Power: 17 
KALYANPRODHAN has no influence.
Offline Offline

City: Kolkata
State: West Bengal
RC Skills: Intermediate
Posts: 1556
Join Date: Jul, 2010

Information sharing improves knowledge of both.



All changed but the last as that you can, VC sir the Grate. Just Modify.
And I suggest APC Prop with 2826 motor
http://hobbysea.com/products.php?18&cPath=14&sid=05ef41b8ced06d6cf1b0b39876c78aa4
320 watt.
You can get unlimited vertical even for 1.5 kg too. with prop adapter (Not prop saver and best suited for APC Prop) And low cost too

But surely you have similar one
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 #39 on: July 12, 2012, 04:24:46 AM »
rcpilotacro
Global Moderator
Forum Hero

*****

Reputation Power: 58 
rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.
Offline Offline

City: Delhi
State: Delhi
RC Skills: Advanced
Posts: 5041
Join Date: Nov, 2010

Practice, and only Practice will make you perfect



VC
great going!! could you add just enough coro to the foam consignment so that i can give it a go ?
Logged

Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he canít get it wrong.
 

Read
« Reply #40 on: July 12, 2012, 09:27:39 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: 5592
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Thanks Kalyan. I have the same motor, however, will a 7X4 prop generate enough wash for this model?

Wilco Sir. One sheet of 6' X 4' Coro added.
Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #41 on: July 12, 2012, 10:59:14 AM »
samlikespad
Plane Lover
Forum Hero

*****

Reputation Power: 9 
samlikespad has no influence.
Offline Offline

City: Kottayam (India)
State: Kerala
RC Skills: Intermediate
Posts: 597
Join Date: Jun, 2011



An APC or APC style HK 8x4 with this motor is a good combo IMO while a 7x4 would do for a less than a kilo trainer. We want pictures Cheesy
Logged
 

Read
« Reply #42 on: July 12, 2012, 01:34:31 PM »
allthatido
Plane Lover
Forum Hero

*****

Reputation Power: 11 
allthatido has no influence.
Offline Offline

City: Mumbai
State: Maharashtra
RC Skills: Intermediate
Posts: 906
Join Date: Apr, 2009

Happy is a man whose hobby is his profession



Hi VC

Excellent build from you (as always).  As far as the CF2822 motor is concerned it will definitely be underpowered. I used the same motor with a 9x4.7 and 10x4.7 on my TB-20. The static thrust values were 600 grms and 730 grms respectively. So avoid that motor for the avispad.

All the best for the rest of the build and maiden. Subscribed. Paint her a beauty like your boats. Smiley

Regards
Ankur
Logged

 

Read
« Reply #43 on: July 12, 2012, 01:47:56 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: 5592
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Thanks Guys. I'm really in a dilemma with the powerplant now. CF2822 (1250Kv)can accommodate a bigger prop with a smaller ESc, but the 2826 (2200 Kv) can only take a smaller prop with a much bigger ESC. AUW is going to be just about a kg, and I want to get the power right the first time.
Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #44 on: July 12, 2012, 01:56:00 PM »
sundaram
FAN OF FPV FLYING, AERIAL PHOTOGRAPHY & MICRO RC
Plane Lover
Forum Hero

*****

Reputation Power: 38 
sundaram is working their way up.sundaram is working their way up.sundaram is working their way up.
Offline Offline

City: Coimbatore
State: Tamil Nadu
RC Skills: Advanced
Posts: 3406
Join Date: Nov, 2009



Your avispad is going to be a slow flyer. You should go with the lesser KV brushless you will get better control over its flying. Go with larger prop and 1250 KV.

Though if you are planning on loops and some aeros you should go in for 2836 same KV.
Logged

 

Read
« Reply #45 on: July 12, 2012, 02:11:12 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: 5592
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Sandy, too much of stuff stockpiled and forgotten at the time of need. Just found this motor in my collection, thereby adding another possible combination. Now tell me:

http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=8622
Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #46 on: July 12, 2012, 02:18:09 PM »
samlikespad
Plane Lover
Forum Hero

*****

Reputation Power: 9 
samlikespad has no influence.
Offline Offline

City: Kottayam (India)
State: Kerala
RC Skills: Intermediate
Posts: 597
Join Date: Jun, 2011



VC, It might barely get the plane up if you could keep the AUW say just about 800 to 900g. It still is very under powered. 2826 is much suited (though I had a lower kv in mind) and you have one lying around. You could change it with a lower kv motor once you have one. Just my opinion Smiley
Logged
 

Read
« Reply #47 on: July 12, 2012, 07:39:26 PM »
rcpilotacro
Global Moderator
Forum Hero

*****

Reputation Power: 58 
rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.
Offline Offline

City: Delhi
State: Delhi
RC Skills: Advanced
Posts: 5041
Join Date: Nov, 2010

Practice, and only Practice will make you perfect



VC
2826-2200 kv in spad, motor will overheat (Due to high drag and low forward speed), this is more of a radjet/ scratch built fighter motor.high KV high draw for same watt, for spad ? you are win win with low kv
Logged

Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he canít get it wrong.
 

Read
« Reply #48 on: July 12, 2012, 07:46:17 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: 5592
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Aye Aye Cap'n! Now do you think I should give the 900Kv a shot?
Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #49 on: July 13, 2012, 03:34:51 AM »
izmile
Plane Lover
Forum Hero

*****

Reputation Power: 7 
izmile has no influence.
Offline Offline

City: Reading (England)
State: OUTSIDE INDIA
RC Skills: Intermediate
Posts: 591
Join Date: Mar, 2009

I am a Corogamist!



Hi VC,

Nice build thread. Please post pictures of the model. I am sure its going to be a great flyer.

BTW, as everyone suggested this will be a slow flyer. So, go for a low KV motor on this one.

-Ismail
Logged

"Anything can fly" - SPADs just prove that!
 

Pages: 1 [2] 3 4 ... 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 17712 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 28697 Last post October 31, 2012, 02:21:19 PM
by pateldixit58
Build LOG :AVISPAD « 1 2  All »
Electric Planes
Mjet 34 18370 Last post October 29, 2012, 10:05:22 PM
by kartikmadhira
plan build avispad(my first!) « 1 2 3  All »
Electric Planes
kartikmadhira 54 22024 Last post December 17, 2012, 09:38:14 PM
by kartikmadhira
Bush style avispad build log « 1 2  All »
Electric Planes
prabal276 39 18687 Last post February 10, 2016, 03:22:12 PM
by sanjayrai55