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Title: Scratch Build - Lil' Ripper 3D Foamy Post by: Jatayu on June 30, 2011, 12:39:07 PM Hello All ;D ;D
This is a foamy which i completed last week. Actually i started the build last year itself but somehow it went off to the side when i got busy with college and SAE Aero Design works, so finally i got to complete it last week.Sadly due to this i couldnt take pics when i was building it so i have only the pics of the final outcome. This plan is very similar to the RCgroups 'Big Nasty' but i got it from 3DMON Designs with slight modification in the nose and under the name Lil' Ripper. Here is the link : http://www.3dmondesigns.com/Lil%27-Ripperplans.php I used 5mm Depron for most of the construction and some 5mm Balsa in the nose to fix the motor mount. Specs: Wingspan - 31" Length - 32" AUW ( without electronics) = 250gms (is that a lot?? :headscratch:) Brushless motor - Emax GT2215/09 from RcDhamaka Prop - 9*4.7 SF Esc - HK 40 A Servos - 3 * Aeolian 9g From RcBazaar Batt - Turnigy 1000mah Motor Mount : C28 mount from Rcbazaar, i tried different motor mounts there and found out that this one in particular is an excellent mount for Grand Turbo series motors {:)} (http://rcbazaar.com/products/178-mounting-seat-for-c28-series-motor.aspx) Still Have to maiden.But had a short chuck test with 50% throttle to see if i need any reinforcement in the tail etc. Pics will follow soon. :) Title: Re: Scratch Build - Lil' Ripper 3D Foamy Post by: Jatayu on June 30, 2011, 12:54:52 PM I Know that GT2215 and 40A is an overkill for this plane but its just an initial setup. will change to either a Towerpro combo or a Aeolian C2826- KV1200 brushless motor.
Title: Re: Scratch Build - Lil' Ripper 3D Foamy Post by: Jatayu on June 30, 2011, 01:24:37 PM Here are some pics of the build...
Title: Re: Scratch Build - Lil' Ripper 3D Foamy Post by: Jatayu on June 30, 2011, 01:26:12 PM Motor mount, main wing and servos..
Title: Re: Scratch Build - Lil' Ripper 3D Foamy Post by: ashJR7202 on June 30, 2011, 01:42:29 PM nice built...
2215 or 2826 are overkill, both are powerful motors meant for around 39"-44" ws model, and i think little heavy.... for this plane even emax 2812 is good enough if u want more punch then 2822 is just more than enough!!!! once i tried 2213 on my 30" foamy and on landing motor mount came off, tearing biofoam!!!! so if u really going with ur motor then give lots of support to motor mount!!! Title: Re: Scratch Build - Lil' Ripper 3D Foamy Post by: Jatayu on June 30, 2011, 02:47:43 PM Thanx :) Will keep that in mind.
Actually thought of a 2812 but was tempted for more and put in 2215...Maybe i shouldnt have, will change... Have given enough support i think but i met Sharad (RC) last week and he thinks i need to elongate the support a bit more, will try to fix that up without having to remove a lot of the glued parts... Title: Re: Scratch Build - Lil' Ripper 3D Foamy Post by: naatumach on June 30, 2011, 05:17:26 PM nice.. i dont know anything about an overkill.
But is the model ready to take an over powered motor? Title: Re: Scratch Build - Lil' Ripper 3D Foamy Post by: Swapnil on June 30, 2011, 05:21:50 PM That's what overkill means... :)
Title: Re: Scratch Build - Lil' Ripper 3D Foamy Post by: naatumach on June 30, 2011, 05:32:49 PM oh! :P i just thought it had to do with the power to weight ratio and nothing to do with the actual model.
Title: Re: Scratch Build - Lil' Ripper 3D Foamy Post by: Jatayu on July 02, 2011, 05:09:32 PM I've been reinforcing the model with all kinds of things to handle this motor. but of course even if i dont change the motor , i wont be flying on full throttle. so then i'll just have unneccesary weight on the plane. Maybe i'll change it to 2812 or a towerpro bell from one of the HK combos.
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