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Title: My first build..need suggestions Post by: shijin ps on September 15, 2014, 01:27:11 PM hi
this is my first foamie made from 12mm bio-foam (which i brought from PRAVEEN JOSE SIR). SPECS: MOTOR:avionic cf2826 1900kv lipo:ind-power 11.1v 1100mah esc:hobbywing 40 Amp prop:7*4 or 6*4(as directed by iyer sir) 2 9gm servos auw:about 530 gms need suggestions... thanks :hatsoff: some pics Title: Re: My first build..need suggestions Post by: K K Iyer on September 15, 2014, 02:55:00 PM @shijin ps
Sir, 10x4.5 prop with 3s battery on 1900kv motor will probably draw far more than the rated 15amps continuous. May need to use 2s and/or smaller prop. Check with a wattmeter if you have one. Else run for a few seconds at full power and see if motor gets hot. As the control surfaces are huge, keep throws to a minimum, else will be too much to handle! Best of luck. Title: Re: My first build..need suggestions Post by: shijin ps on September 15, 2014, 03:40:39 PM Sorry iyer sir the prop is 9*4.5
Title: Re: My first build..need suggestions Post by: K K Iyer on September 15, 2014, 03:54:44 PM @shijin ps
Still probably too large. My 2826 2200kv runs a 6x4 Remember your 1900kv will run at about 20,000 rpm on 12v Strongly recommend use 2s only with your existing prop. Check for overheating. May need to go down to 8x4 even with 2s. (Or 6x4 / 7x4 with 3s) A lower kv (1000-1200kv) motor (in 2826 size) would be required to run a 9x4.5 on 3s Title: Re: My first build..need suggestions Post by: wingmanbunty on September 15, 2014, 05:40:04 PM nice airplane build
pls reconsider the balance of the airplane as you put servo receiver and esc all on the right side and for compensate the weight you put battery on the other side so all these items and battery weight is same then its okay , other wise reconsider the position. best of luck for the flying. Title: Re: My first build..need suggestions Post by: shijin ps on September 15, 2014, 07:01:19 PM Thank you iyer sir and wingmanbunty sir.@ wingmanbunty sir i will check it tmrw.and will use 7*4 or 6*4 prop as guided by iyer sir.
Title: Re: My first build..need suggestions Post by: subhashjk0508 on September 15, 2014, 07:40:24 PM yup as Iyer sir said need to reduce prop size!!
and from my view , i think the vertical stabilizer is a bit small, but still that wont be a probs here.hope you enjoy the maiden!! |