|
Title: Power and CG questions Post by: avigyan.chatterjee on July 23, 2012, 08:02:36 PM will anybody plz help me? i have made rc cesna182 , using very light plastic sheet.i have used dys(A2826-10)brushlss outruner motor. ,rcforall esc,7.4v/850mAh LiPo battery (rcforall) and HK T6A transmitter - receiver set.the total weight is 450 gm.
but there i am facing some problem (i) the motor cannot provide sufficient speed to fly ( though its specification ,it can take upto 780 gm) (ii) when i trying to fly it ts front part getting down (might be CG problem) Plz tell me what can i do ? waiting for your reply with regards avigyan chatterjee Title: Power and CG questions Post by: satz flying on July 23, 2012, 08:13:23 PM adjust thrust line of the motor
http://www.airfieldmodels.com/information_source/math_and_science_of_model_aircraft/formulas/engine_offset.htm (http://www.airfieldmodels.com/information_source/math_and_science_of_model_aircraft/formulas/engine_offset.htm) Title: Power and CG questions Post by: vineet on July 23, 2012, 09:35:21 PM also try to use 3 cell battery
Title: Power and CG questions Post by: rastsaurabh on July 23, 2012, 09:46:30 PM Check cg !!!
Title: Power and CG questions Post by: avigyan.chatterjee on July 24, 2012, 07:03:31 AM dear satish
will u plz tell me how can i check the thrust line? the website u had provided me is not opening. with regards avigyan chatterjee Title: Power and CG questions Post by: saikat on July 24, 2012, 07:13:43 AM post a picture - or better still a video ,that is the
only way you will get accurate answers, otherwise it will all be guesswork Title: Power and CG questions Post by: Snehal.Samar on July 27, 2012, 05:49:51 PM try using a reverse prop.
Title: Power and CG questions Post by: satz flying on July 27, 2012, 06:37:05 PM Ehhh...... see the picture., add two or three washers in 1 and 4 place motor mount bold.If u have do this,motor will angle up some degree.so got answer for second question.Another one idea is,trim elevator towards up. and check CG to.
:thumbsup: |