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« on: April 21, 2013, 01:14:41 AM »
umayash1
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Hello,

M about to complete one .25 size trainer airplane totally scratch built,
Built for one of my student, Have started working on it a week ago, hope to maiden it soon,
Some specs:
Wing span : 54 Inches
Fuse length : 42 Inches
Engine : O.S. 25LA
Servos: Hitec HS-311 All Around

Regards
Tanmay.. Smiley

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« Reply #1 on: April 21, 2013, 01:15:44 AM »
umayash1
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More,

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« Reply #2 on: April 21, 2013, 09:46:42 AM »
yashodhanp
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please post plans etc for the same. Materials used etc.
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« Reply #3 on: April 21, 2013, 10:22:10 AM »
sanjayrai55
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Looks real good  Thumbs Up. Which Landing gear did you use, and from where did you get it? How did the CG Pan out?

Look forward to seeing the video of the maiden  Grin
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« Reply #4 on: April 22, 2013, 02:31:55 AM »
umayash1
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@yashodhanp- Sorry for the plan buddy, have started building it directly, but I tried to make it like Hangar 9 Alfa 40 (By taking reference from the pictures), And is totally made from Balsa..

@SanjayRai- Thanks, Undercarriage are made from the tampered wire which is loacally availabe here, and will sure upload the test flight vids Soon...

Regards
Tanmay
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« Reply #5 on: April 24, 2013, 11:26:39 PM »
umayash1
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Some more.. Servo Installation & Setup Pics..

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« Reply #6 on: December 24, 2013, 04:34:12 PM »
umayash1
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Converted it into a Electric Setup..
Motor:- Turnigy NTM Prop Drive 35-36A 1400Kv


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« Reply #7 on: December 24, 2013, 04:41:47 PM »
Aniket1995
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Nice one tanmy, electric is the best.

Which esc and battery you used?
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« Reply #8 on: December 24, 2013, 04:49:06 PM »
umayash1
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ESC:- Red Bricks 70A W/5A BEC
Battery:- 2200Mah 11.1 3S1P 30C
Prop:- 10X6E
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« Reply #9 on: December 24, 2013, 05:23:07 PM »
K K Iyer
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One by one, the OS engines from his electric conversions are ending up with me.
Guess this is just a compulsive irresistible urge, considering that I've been flying only electric in the whole of 2013. And I've not even met Tanmay!
Tanmay, don't offer me any more engines (unless it is a four stroke hehe)

70A ESC? That OS is 0.70hp, or say 550W. So when he draws 55A, that 2200mah lipo will die in under 3 minutes. Guess Tanmay is going to ask me to return the engine soon  Grin
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« Reply #10 on: December 24, 2013, 06:02:14 PM »
umayash1
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Ha Ha Ha..Not at all sir, Your Engine has been Packed, and Ready to go..

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« Reply #11 on: December 24, 2013, 06:08:18 PM »
umayash1
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BTW We are not going to fly the Airplane in full throttle in a whole flight.. So Expecting a flight time of 6-8 minutes with 2200Mah 3S pack..
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« Reply #12 on: December 25, 2013, 02:53:16 AM »
FlyingBrick
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errr.. you are building this for your student...where/when do I sign in ?  Roll Eyes
Nice build  Cheesy
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« Reply #13 on: December 25, 2013, 11:12:13 AM »
kewal kalsaria
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I think u should use only 30 to 40 amp. 70 is not needed its too high also.
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« Reply #14 on: December 25, 2013, 11:25:23 AM »
Bhanu Prakash
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 Hats Off Hi Umayash this is nice building,great job work  Hats Off Clap
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« Reply #15 on: February 12, 2014, 10:12:45 PM »
umayash1
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Another Trainee Flight.. After Conversion..

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« Reply #16 on: February 12, 2014, 10:32:59 PM »
K K Iyer
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Such a young instructor!
Who's the tall guy? Grin
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« Reply #17 on: February 13, 2014, 07:04:15 PM »
umayash1
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 Grin Grin Grin
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« Reply #18 on: February 13, 2014, 07:51:03 PM »
gaurang.1972
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very well done umayash Hats Off Hats Off Hats Off expected video
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« Reply #19 on: February 13, 2014, 08:33:53 PM »
sanjayrai55
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What sort of flight times did you get then?

Really beautiful flying spot. Has anyone landed in the lake yet  Giggle ROFL
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« Reply #20 on: February 13, 2014, 09:50:32 PM »
umayash1
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@Sanjay Sir:- Lol.. This is our permanent Flying Field, Beautiful Place for flying Sea Planes or Amphibian Aircrafts.

Also I am getting 12-15min Flight time with 3S 2200Mah Lipo, 10X5E Prop.
AUW of Aircraft is Around 1300 Grams.
Motor:-NTM Prop Drive 35-36A 1400Kv.
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« Reply #21 on: February 14, 2014, 04:38:37 AM »
Shyam Hembram
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Re:

Excellent build
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« Reply #22 on: February 14, 2014, 11:08:10 AM »
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Beautiful build Umayash  Clap

clean build
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« Reply #23 on: February 14, 2014, 01:47:11 PM »
umayash1
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Thanks Smiley
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