Building Boeing PT 17 Stearman

Started by cheluvaraj, January 02, 2013, 01:36:24 PM

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cheluvaraj

Hi All,

Trying to build Boeing PT 17 Stearman from eagle-rc.com with local available materials.
Please check attached images of my build.

http://www.eagle-rc.com/profileplans/stearman.php

Since i'm a beginner, need your support / feedback.
I have used Corrugated plastic which is 2.5 mm thick.

Need your help getting the right parts to fly this.


Specifications as mentioned in website.
Type: Profile
Scale: 1:10
Length: 31.0in (787mm)
Wing Span: 38.6in (981mm)
Wing Area: 425sq.in (27.4dm²)
Flying Weight: 18oz (510g)
Wing Loading: 6.1oz/sq.ft (18.6g/dm²)
Servos: 4
Receiver: 4 channel
Power System: E-flite Park 400 Brushless Outrunner
Battery: E-flite 11.1V 1250mah Li-Po
ESC: E-flite 20A Brushless ESC


thanks in advance
Cheluvaraj
Revolutionary potential is only limited by our imagination

vishal

feedback is  {:)} {:)} {:)}

now the support part you have to ask  ;D


cheluvaraj

would like to know if i can use 1534kv motor for this ?
http://www.rcelectro.com/rc-products/Brushless-Motors/emax-cf-2812-brushless-outrunner-1534kv

they have suggested for 920kv one. so little more is ok ?

Pl let me know

Thanks
Revolutionary potential is only limited by our imagination

vishal

a little more is all right.
slight tweaking here and there is ok,
all the best

rgds

arun.sreelakam

@ cheluvaraj: your plane looks good in design, and well made.. :thumbsup: :thumbsup:
but I will suggest for a bigger wingspan and lower KV motor...
the motor you shown is okay but keep this design with you and make another trainer model first, learn on that and then go for this..
i have made 2 models before my first successful model and wasted a lot of money..  :banghead: :banghead: :banghead:

Turnigy i10|Flysky 9xb|Hoverfly quadcopter|Arduflyer apm 2.5 with gps|Pixhawk|Homemade micro night vapour|Homemade ornithopter(in progress)| Reptile Quad with Gopro Brushless gimbal | Naza v2| APM 2.6 with GPS | Micro quad self made | FrSky| v911 Helis | 1200mm Hexacopter with 5d gimbal | 1300mm x8 With Red Gimbal | 1000mm Octo|

veloci

I agree with arun. But since u've already built it, try the emax 2822 instead of the 2812. Retails at around 550 INR at RCD. This wil give u better thrust at around 900g with a 3s lipo and 10inch prop. PS - I have 6 of these :-D Cheers!  
Airplanes may kill you, but they ain't likely to hurt you.
~~~Satchel Paige

cheluvaraj

Thanks Arun and veloci.

The one i have built is not looking that stable. used 2mm caro and its not that stiff. so planning to build another one with 4/5 mm caro.

Before that I would like to try with Arun's design. Waiting for Arun to send the final specs. :)

Thanks
Cheluvaraj
Revolutionary potential is only limited by our imagination

arun.sreelakam

yaar i already attached the design in my thread(post no:49)
http://www.rcindia.org/electric-planes/home-made-coro-trainer-plane-50'-span/25/
you can learn with this plane quickly..
all the best dude...
by the way i am using 2mm coro as well, with some supports(coro strips itself)
do contact for any help...
any way here is the plan...attached
Turnigy i10|Flysky 9xb|Hoverfly quadcopter|Arduflyer apm 2.5 with gps|Pixhawk|Homemade micro night vapour|Homemade ornithopter(in progress)| Reptile Quad with Gopro Brushless gimbal | Naza v2| APM 2.6 with GPS | Micro quad self made | FrSky| v911 Helis | 1200mm Hexacopter with 5d gimbal | 1300mm x8 With Red Gimbal | 1000mm Octo|

cheluvaraj

Thanks Arun.

I'm confused  ???  8-)  :o  to select the motor.

RC Bazaar, they have defined THRUST for every motor.  and the cost varies based on this too. So i assume this  THRUST something to do with total weight. (pl correct me if i'm wrong) .

When I look at the Hobbyking, they do not have this THRUST ? what else I need to check if i have to buy it from HK

Thanks in advance
Cheluvaraj

Revolutionary potential is only limited by our imagination