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Title: Building Boeing PT 17 Stearman Post by: cheluvaraj on January 02, 2013, 01:36:24 PM 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 (27.4dmē) Flying Weight: 18oz (510g) Wing Loading: 6.1oz/sq.ft (18.6g/dmē) 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 Title: Re: Building Boeing PT 17 Stearman Post by: vishal on January 02, 2013, 01:51:31 PM feedback is {:)} {:)} {:)}
now the support part you have to ask ;D Title: Re: Building Boeing PT 17 Stearman Post by: cheluvaraj on January 02, 2013, 10:07:23 PM 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 Title: Re: Building Boeing PT 17 Stearman Post by: vishal on January 02, 2013, 11:07:35 PM a little more is all right.
slight tweaking here and there is ok, all the best rgds Title: Re: Building Boeing PT 17 Stearman Post by: arun.sreelakam on January 07, 2013, 07:27:10 AM @ 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: Title: Re: Building Boeing PT 17 Stearman Post by: veloci on January 07, 2013, 10:19:24 AM 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!
Title: Re: Building Boeing PT 17 Stearman Post by: cheluvaraj on January 07, 2013, 03:57:17 PM 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 Title: Re: Building Boeing PT 17 Stearman Post by: arun.sreelakam on January 07, 2013, 04:36:28 PM 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 Title: Re: Building Boeing PT 17 Stearman Post by: cheluvaraj on January 07, 2013, 07:27:26 PM 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 |