RC India
Welcome Guest, please login or register.
 
Pages: [1]   Go Down
0 Members and 1 Guest are viewing this topic. Topic Tools Topic Tools 
Read
« on: August 07, 2019, 01:27:22 PM »
Aeroresurrect
Plane Lover
Senior Member
***

Reputation Power: 3 
Aeroresurrect has no influence.
Offline Offline

City: Noida
State: Uttar Pradesh
RC Skills: Beginner
Posts: 134
Join Date: Jun, 2012




Slow and painful build....
Instruction sheet supplied left too much gaps , had to overwork my brain to sort out more than 300 build components.

20190803_070823-AB.jpg
T-40 Build 1540 mm
* 20190803_070823-AB.jpg (7.98 KB, 253x142 - viewed 969 times.)
Logged
 

Read
« Reply #1 on: August 07, 2019, 04:33:49 PM »
sanjayrai55
Plane Lover
Forum Hero

*****

Reputation Power: 85 
sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Intermediate
Posts: 8337
Join Date: Dec, 2011

Don't wake a Tiger until you've factored the teeth



Is this from RCB?
Logged

 

Read
« Reply #2 on: August 07, 2019, 06:33:48 PM »
Aeroresurrect
Plane Lover
Senior Member
***

Reputation Power: 3 
Aeroresurrect has no influence.
Offline Offline

City: Noida
State: Uttar Pradesh
RC Skills: Beginner
Posts: 134
Join Date: Jun, 2012



No, from Aliexpress - scratch build model.
Still not clear how the aileron is to be built.  (Apparently instruction says to cut the outer 3 ribs near the trailing edge of both wings.... !)
The undercarriage is another big jigsaw puzzle.
Lets see how it works out...
Logged
 

Read
« Reply #3 on: August 07, 2019, 06:38:46 PM »
sanjayrai55
Plane Lover
Forum Hero

*****

Reputation Power: 85 
sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Intermediate
Posts: 8337
Join Date: Dec, 2011

Don't wake a Tiger until you've factored the teeth



1. This is termed " Kit Build"  Scratch Build is when you have a plan and sheets of balsa/ply
2. The aileron IS actually cut from a wing TE. This is common, nothing to worry about
3. Just play with the U/C parts, you'll see how they fit  Grin

Good luck, keep posting  Thumbs Up
Logged

 

Read
« Reply #4 on: August 07, 2019, 06:57:32 PM »
Aeroresurrect
Plane Lover
Senior Member
***

Reputation Power: 3 
Aeroresurrect has no influence.
Offline Offline

City: Noida
State: Uttar Pradesh
RC Skills: Beginner
Posts: 134
Join Date: Jun, 2012



Thanks Sanjay,
By the way, where do you stay in Gurgaon ?
Logged
 

Read
« Reply #5 on: August 07, 2019, 06:58:37 PM »
sanjayrai55
Plane Lover
Forum Hero

*****

Reputation Power: 85 
sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Intermediate
Posts: 8337
Join Date: Dec, 2011

Don't wake a Tiger until you've factored the teeth



See Reply # 12 here:

http://www.rcindia.org/electric-planes/piper-cub-from-rcb-balsa-kit-for-2014-sweepstakes/
Logged

 

Read
« Reply #6 on: August 07, 2019, 06:59:23 PM »
sanjayrai55
Plane Lover
Forum Hero

*****

Reputation Power: 85 
sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Intermediate
Posts: 8337
Join Date: Dec, 2011

Don't wake a Tiger until you've factored the teeth



Thanks Sanjay,
By the way, where do you stay in Gurgaon ?

In DLF 4. I'm 62 years old, semi retired
Logged

 

Read
« Reply #7 on: August 07, 2019, 11:46:06 PM »
Aeroresurrect
Plane Lover
Senior Member
***

Reputation Power: 3 
Aeroresurrect has no influence.
Offline Offline

City: Noida
State: Uttar Pradesh
RC Skills: Beginner
Posts: 134
Join Date: Jun, 2012



Hi Sanjay,
Just saw your build (Piper Cub) from the link you provided. It was a very, very neat and professional job (aileron separation from the wing). I guess the same procedure applies to my kit also.
Btw, I am also 61 years of age retired from active service, put up in Noida. My build takes time as all my components come from outside mostly sequentially (due to cash crunch). I don't allow leeway for wrong purchase.
I have another hobby (biking). Recently bought an Enfield Interceptor 650 (twin cylinder) at Kolkata. Again it is my endearment to IC engines which prompted me...
Shall look forward to meet u someday.
Logged
 

Read
« Reply #8 on: January 23, 2020, 08:41:47 PM »
Aeroresurrect
Plane Lover
Senior Member
***

Reputation Power: 3 
Aeroresurrect has no influence.
Offline Offline

City: Noida
State: Uttar Pradesh
RC Skills: Beginner
Posts: 134
Join Date: Jun, 2012



Servos in place !
Covering film just released by Kol customs after 4 months.
Engine mounting pending (tank awaited)

IMG_20200121_121630-T-40-build.jpg
Re: T-40 Build 1540 mm
* IMG_20200121_121630-T-40-build.jpg (33.71 KB, 512x512 - viewed 834 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
Logged
 

Read
« Reply #9 on: January 24, 2020, 05:12:33 AM »
sanjayrai55
Plane Lover
Forum Hero

*****

Reputation Power: 85 
sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Intermediate
Posts: 8337
Join Date: Dec, 2011

Don't wake a Tiger until you've factored the teeth



Coming along very well  Thumbs Up
Logged

 

Read
« Reply #10 on: January 24, 2020, 05:39:49 AM »
sanjayrai55
Plane Lover
Forum Hero

*****

Reputation Power: 85 
sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Intermediate
Posts: 8337
Join Date: Dec, 2011

Don't wake a Tiger until you've factored the teeth



But Projjal, this 4 months for the covering film is astounding!
Logged

 

Read
« Reply #11 on: January 24, 2020, 12:42:08 PM »
Aeroresurrect
Plane Lover
Senior Member
***

Reputation Power: 3 
Aeroresurrect has no influence.
Offline Offline

City: Noida
State: Uttar Pradesh
RC Skills: Beginner
Posts: 134
Join Date: Jun, 2012



Sanjay Sir,  this is the hard truth about our Customs. I had decided NOT to follow up.
Thank you for encouraging my build.
Should be bench-testing the engine soon.
Logged
 

Read
« Reply #12 on: February 01, 2020, 10:34:12 PM »
Aeroresurrect
Plane Lover
Senior Member
***

Reputation Power: 3 
Aeroresurrect has no influence.
Offline Offline

City: Noida
State: Uttar Pradesh
RC Skills: Beginner
Posts: 134
Join Date: Jun, 2012



Preliminary mount of the engine to assess cowl modification (mutilation) due to the muffler. I wonder if a long neck is available for the muffler ?

thumbnail_IMG_20200201_204159.jpg
Re: T-40 Build 1540 mm
* thumbnail_IMG_20200201_204159.jpg (51.43 KB, 600x800 - viewed 686 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
Logged
 

Read
« Reply #13 on: February 02, 2020, 05:08:27 AM »
sanjayrai55
Plane Lover
Forum Hero

*****

Reputation Power: 85 
sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Intermediate
Posts: 8337
Join Date: Dec, 2011

Don't wake a Tiger until you've factored the teeth



It could be possible to get a Pitts type muffler for it. But you'll have to search!

On another note, maybe it's an optical illusion, but the engine seems tilted to the left. Left thrust is the last thing you want; ideally for this model you should have a little (2 degrees) right thrust
Logged

 

Read
« Reply #14 on: February 02, 2020, 08:01:09 AM »
Aeroresurrect
Plane Lover
Senior Member
***

Reputation Power: 3 
Aeroresurrect has no influence.
Offline Offline

City: Noida
State: Uttar Pradesh
RC Skills: Beginner
Posts: 134
Join Date: Jun, 2012



I too thought so... (engine axis pointing to left). I will correct it by adding shims between mount and firewall.
But the "cowl-foul" is more complicated.... Bang Head
Logged
 

Read
« Reply #15 on: February 02, 2020, 12:05:07 PM »
K K Iyer
Global Moderator
Forum Hero
*****

Reputation Power: 61 
K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!
Offline Offline

City: Indore
State: Madhya Pradesh
RC Skills: Intermediate
Posts: 5165
Join Date: Jan, 2012



Just noticed the dry cells in a battery box.
This is a potential failure point due to connection break caused by vibration.
We gave this up decades ago.
Better to get a presoldered 4cell NiMH pack.

Regarding side thrust, perhaps you could elongate the holes in the mount a bit. By shimming behind the mount, you’ll lose the solid contact with the firewall that helps vibration absorption/damping.

Just my 2 cents worth...
Regards
Logged
 

Read
« Reply #16 on: February 02, 2020, 12:12:01 PM »
sanjayrai55
Plane Lover
Forum Hero

*****

Reputation Power: 85 
sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Intermediate
Posts: 8337
Join Date: Dec, 2011

Don't wake a Tiger until you've factored the teeth



Are they dry? Look like Eneloop NiMH. Anyway, Iyer sir is absolutely right: these battery boxes are shady!
Logged

 

Read
« Reply #17 on: February 02, 2020, 11:16:15 PM »
Aeroresurrect
Plane Lover
Senior Member
***

Reputation Power: 3 
Aeroresurrect has no influence.
Offline Offline

City: Noida
State: Uttar Pradesh
RC Skills: Beginner
Posts: 134
Join Date: Jun, 2012



Yes, Iyer sir,
Battery box is just temporary. I normally use completely encased boxes , tightly cello-tape wrapped all round. Wiring leads are soldered to switch and charging socket. These are not dry cells but rechargeable NiMH s  (giving about 1.2V per cell and having 1300 mAH or above capacity). In this airplane, I intend to use another battery box (size AAA- NiMH rechargeable - 1000 mAH for the CDI ignition system). So, 2 charging points and 2 switches !!
I use some rubber shims between firewall and engine-mount to absorb engine vibrations.
Logged
 

Read
« Reply #18 on: February 02, 2020, 11:24:25 PM »
Aeroresurrect
Plane Lover
Senior Member
***

Reputation Power: 3 
Aeroresurrect has no influence.
Offline Offline

City: Noida
State: Uttar Pradesh
RC Skills: Beginner
Posts: 134
Join Date: Jun, 2012



Sanjay, these are "Envie" rechargeable NiMH cells , 4 in series yield 4.8V at whatever ampere-hour (I never use less than 1000 mAH) found OK .
However for transmitter, I use 2500-2800 mAh of these cells as drainage is more.
Logged
 

Read
« Reply #19 on: February 03, 2020, 08:37:06 PM »
K K Iyer
Global Moderator
Forum Hero
*****

Reputation Power: 61 
K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!
Offline Offline

City: Indore
State: Madhya Pradesh
RC Skills: Intermediate
Posts: 5165
Join Date: Jan, 2012



However for transmitter, I use 2500-2800 mAh of these cells as drainage is more.

Sir, if you have a wattmeter, please compare the current draw by the Tx on constant use, with the draw on the airborne pack with intermittent but frequent use of the servos.

You may be surprised that the Tx pack needs far less capacity than the Rx pack!

I had typed out a far more detailed reply but it got lost between the back arrow and front arrow...

Regards
Logged
 

Read
« Reply #20 on: March 19, 2020, 01:07:17 PM »
Aeroresurrect
Plane Lover
Senior Member
***

Reputation Power: 3 
Aeroresurrect has no influence.
Offline Offline

City: Noida
State: Uttar Pradesh
RC Skills: Beginner
Posts: 134
Join Date: Jun, 2012



Thank you, Iyer sir, for the useful input.
I shall anyway upgrade (capacity) of receiver battery to 2400 mAH or more as I intend to use a 3-axis stabiliser also. (This entails continuous drain on battery).
Best regards
Logged
 

Read
« Reply #21 on: October 27, 2020, 11:26:03 AM »
Aeroresurrect
Plane Lover
Senior Member
***

Reputation Power: 3 
Aeroresurrect has no influence.
Offline Offline

City: Noida
State: Uttar Pradesh
RC Skills: Beginner
Posts: 134
Join Date: Jun, 2012



Some progress with film wrapping

thumbnail_IMG_20201026_201458.jpg
Re: T-40 Build 1540 mm
* thumbnail_IMG_20201026_201458.jpg (62.64 KB, 600x800 - viewed 418 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
Logged
 

Read
« Reply #22 on: October 27, 2020, 04:01:11 PM »
sanjayrai55
Plane Lover
Forum Hero

*****

Reputation Power: 85 
sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Intermediate
Posts: 8337
Join Date: Dec, 2011

Don't wake a Tiger until you've factored the teeth



 Clap

Maiden it!
Logged

 

Pages: [1]   Go Up
Jump to:  

Related Topics
Subject Started by Replies Views Last post
CHALLENGER-my first coro build-build log
Electric Planes
prateek13 10 10890 Last post August 03, 2012, 09:16:50 AM
by KALYANPRODHAN
plan build Hangar Rat (build log)
Electric Planes
Bilal 23 25670 Last post November 05, 2014, 11:49:09 PM
by ayub
Su-37 Build - First build issues
Electric Planes
dheerajjuneja 16 10277 Last post April 08, 2013, 06:34:02 PM
by dheerajjuneja
Scratch Build - Pusher Trainer (Build No.2)
Self-designed, DIY and College Projects
chils41 2 7502 Last post June 13, 2014, 04:05:47 AM
by johnywalker8pm
gnome build thread - my first balsa build
Kites, Trains, Free Flight and All Others
Suyash 12 7295 Last post February 19, 2017, 08:23:45 PM
by sanjayrai55