RC India

As a beginner I was looking for a good trainer, while searching I found Russ-40 http://www.rcgroups.com/forums/showthread.php?t=1281056 (http://www.rcgroups.com/forums/showthread.php?t=1281056)

Hardware used:

•   7*7*7 mm  Aluminium  C type square tube *2 . 32.25 Inch long
•   Bio foam 5 mm and 10 mm
•   Spring steel 16 gauge for landing gear, 18 gauge for pushrods 
•   Small piece of ply wood
•   Aluminium   rods (made out of cloth hanger)
•   Hot glue,  5 Minute epoxy (Araldite Klear )
•   Abro tape
•   Rubber band
•   Bamboo stick for wind reinforcement
•   Round Plastic case as wheel

Electronics:
•   E-Max 2812 1534kv with a gws 7x4  propeller
•   18a Turnigy esc,
•   1000ma 3s lipo,
•   hxt 9g servos.

Some construction pics

Plan used is airfoil 50" span . As per inventor of this design plane with 50" is more stable.

5 mm and 10 mm used for construction, no hot wire cutter, used paper/ thermocol cutter.

Small piece of plywood used for motor mount, mounted aluminium c type tube.  This aluminium tube can be found easily in any hardware store. @ 8/- per meter
 Glued with Araldite Klear 5 min epoxy.

Reinforced stick with combining two tubes together.

Small aluminium rods from cloth hanger , used for holding wing .

Glued fuse to foam by hot glue gun. Used hot glue gun here as it's very quick and quite capable   :)

I don't had landing wheels so temporary  plastic case of gold rings (jewelry)

E-Max 2812 1534kv with a gws 7x4  propeller

Following this thread with a lot of interest! :thumbsup:

Dead weight added before median to get correct CG. :banghead:
Thanks to Prady sir without him it was not possible to calculate correct CG
Plane was too tail heavy, so added 8 AA cells approx 200-300 grm in front of plane, this cause performance of the plane but defiantly help to fly properly.

Thank you VC sir but I'm not so good writer :)

Complete fuse.

Complete plane  :thumbsup:

First and Median flight  {:)}

Thanks to Amit (SunLikeStar) for first throw and  Prady sir for your SAFE hands.

I am not flying it , I'm still practicing on simulator  :giggle:, this is magic of Prady sir we are flying at Baner , Pune on Sat/ Sundays .

Happy landing  {:)}

Temporary landing gear show there weakness , but was strong enough to save lipo mounted at the bottom   :)

This was amazing experience to see my scratch build flying so nicely in first attempt.

ohh.. yaa it also could glide well with throttle off.

I was totally impressed with how well it glides. Very nice build log Vinayak {:)}
hope to see you more often at the field :thumbsup:

great show vinayak... :bow: as amit says, you ahould come down to field more often ;D...

good one vinayak

 
Thank you Amit and Mohan Sir. You all are masters in this hobby; I'm just a beginner, getting comment from you all is like appreciation we receive from our Boss in office :D

I will try to visit more often the field and will try to improve myself with your help.

Thank you augustinev

 ??? ;D...vinayak bhai, i do not know about amit >:D...but if you see my RC Skills, i am still a beginner :banghead:...thanks to praddy, amar and others at the field i am just about beginning to get the aircraft in one piece down of late...
 

One thing I notice and would like to share/ suggest all beginners like me

 :salute:Please visit your nearest field and senior RC flying members before you start with your new plane. :salute:

 I have made mistake with my first scratch build BlueBaby 24” I tried it myself and never succeed. Every time tried to get into air it crashed on nose.

Without senior members like Pradi Sir , Amar Sir , Mohan Sir and Amit It was not possible to get my new bird to air.

Amazing!!!!! so many ideas.......made out of easily available material.......grt!!!

good work. What is the AUW?

Thanks Ashish.
As this plane was a quick build (almost built in couple of days) instead of waiting for exact build material and delay test flight I decided to go with things available with me (this specially applies for landing gear)
Sooner I’ll be changing this with actual lighter foam wheels.

Thanks Pankaj.

 AUW before adding dead weight was exact 600 gms. I guess with additional weight of 8 AA cells it increase by 150-200 gms (I'm not sure about weight of dry pencil cell non rechargeable need to check)

One pencil cell = 17 grams. I'm working on a DLG :)

Thanks SLS so it added ~ 150 grm with cell hoder to balance.

By the way what is  DLG  ???

discus launch glider, look it up on google
http://www.youtube.com/watch?v=LP44_8sR8QQ

WOW Amit cool stuff  :thumbsup: can't wait to see it on feild

Hey hey, Brilliant work man, Nice to see other scratchbuilders...
You built from a plan or just arbitrarily?

I've been engrossed with this build and the RCGroups thread. It is an ingenious design - a must for every beginner. The only constraint would be the regional availability of depron / bio foam. Anyone tried building this out of Coro?

Vinayak  :hatsoff: to you for using pencil (AA) batteries! Inspiring, to say the least. :salute:

Thank you VC Sir :)


I liked flight charasristic with ace of simple design . Specially if you see the videos posted by Russ , it’s really impressive.

I am planning to rebuild tail  part (only) of this plane by coro. Month back I landed my plane on tree because of high wing and my noob pilot skills  :giggle: and broke the horizontal stab.

I notice while reading this post agin that I havn't uploaded video of my first flight by Prady sir. I will upload it soon.

BTW I have upgraded my TTP with Towerpro 2409 t motor , 2200mh 3 cell lipo, and 10.47 slow prop. Also fuse is now of squre aluminium tube. So now no more Pencil cell for managing GC.

http://www.youtube.com/watch?v=AR18R2jHdz0

This is video of second -third flight almost 8-9 month back from today
Pilot : Prady Sir

Superb!

 {:)} {:)} {:)} {:)} {:)}

Vc sir i have build it in coro and really it one of the best trainer design.
here are the pics of it coco version.
http://www.rcindia.org/electric-planes/my-new-'high-wing-trainer'/msg109192/#msg109192

Thanks for the link Swizera. I think you have deviated a bit from the original plans and reshaped the horizontal tail. However, since it flies well - Congrats to you too!

hi vinayak ,that neat im building the same need ur help, making 48inch WS polydihedral undercamber wing with ribs ,with mounts,34 fuse,10 wing cord, 14 stab i need help on

 what foam to use for wings ,wing ribs,radder ,elevator what should i  say when i go to buy it ,whats it called and ver imp please tell me how many mm each part is please help

 im using these electronics my first bild never flew or made 1 b4
futaba transmitter t6ex
 r6106hf futaba recievers Size: 0.85 x 1.53 x 0.48" (21 x 39 x 12mm)
Weight: 0.24 oz (6.7g)
Voltage Range: 4.8 - 7.4V
the motor i hav is BLM2822-7T,
carbon prop 6.5 x4,
battery-SLS APL 2200mAh 2S 7.4V 30C +60 C TRX
ESC- it is the Magic Seed Brushless ESC 18

HI Roman , here is the orignal thread of Russ Trainer. Here u will find the Complete plans and dimensions.
http://www.rcgroups.com/forums/showthread.php?t=1281056

Read the entire thread carefully before starting to build one.

I also build the same one with little modification, for rough dimensions u can see this thread.

http://www.rcindia.org/electric-planes/my-new-'high-wing-trainer'/msg109192/#msg109192

best of luck  :thumbsup:

Hi romanxdsouza ,

As " swizera " said please go through original thread of Russ-40 on RC group. You will get all information needed.

Regarding build material I have used High Density thermocol (also known as Bio Foam ) instead of Depron as in the original plans. (Don't know where we get Depron in india)

High density thermocol is easily available and widely used for RC plans.

For making wings ,rudder ,elevator , horizontal stab and vertical stab  you can used 5mm  High Dencity thermocol  . I have used same (Check post #1 for material I have used). Mine was KFM wing as per the original plan . Aslo I have used same electronics as mentioned by author.

Your Prop and battery needs to change. I think it will be under powered.
Recomended Electronics by author is : (this works well :) )
•   E-Max 2812 1534kv with a 8x4  propeller
•   18a esc,
•   1000ma 3s lipo,
•   9g servos.

Take help of expert flyers to median after completing your plane.
-Vinayak

hi sir i want to make plan so u can help me...please rply on my email

Hi Sagar,

I check your profile for your email :) I found you have spent very less time on this site. (May be you have browse offline, I hope so) Still I would suggest to read more this forum. Lots of information flowing in it.

Go through complete thread you will find all required information , this forum is made for helping each other and sharing experience so I would rather prefer to solve queries (If I could off course  ;D) here itself . Also you will found lots of helping hands . I have completely learned scratch building from this forum only.

So please spend some more time and specify your queries. I'm sure you will find all answers. Good luck

-Vinayak

hey vinayak really verry verry thanx

hi vinayak.n  swizera. i plan on making the gws slow stick only difference in mine will be polydihedral wings cambered with ribs and wing mounts LE mount  25mm n TE wing mount 22mm....u think the electronics will work,tried buying styro foam in mumbai no one ever heard of it any other name for it


so for slow stick  do i use High density thermocol 5mm for wings coz i need to curve it cambered wings,radder ,elevator also 5mm High density thermocol what should i  say when i go to buy it ,whats it called. and how many mm ribs

chked out post #1 was nice.how did u make the polydihedral wings ..the tip dihedral wich glue did u  use, bio foam to wood wich glue is good and bio foam to bio foam wich glue.......most imp what is it called in are shops

THIS IS WAT I HAV GUYS
the motor i hav is BLM2822-7T the prop i have is below carbon prop 6.5 x4 http://www.unholzer-modellbau.de/product_info.php?manufacturers_id=69&products_id=1108&osCsid=89d782a64f81e10a59a011b04cd7bd21  

http://www.modellbau-berger.at/antriebe/modellbauelektronik/03c1989ccb1342530/index.php

carbon prop 6.5 x4,http://www.wiredrc.com.au/shop/propellers/spinners/-aeronaut-props/aero-naut-6-5-x-4-carbon-fibre-reinforced-propeller.html
battery- http://www.stefansliposhop.de/liposhop/sls-apl/sls-apl-car/sls-apl-2200mah-2s-74v-30c60c-trx::951.html
ESC- it is the Magic Seed Brushless ESC 18 ,,,,the lower pic http://www.simprop.de/Seiten/Modellbau/0124311MagicSpeed10_18.htm

servos-http://wiki.rc-network.de/Jamara_Servo_5G_Digital

HELP any PLANS AVAI,ABLE for a planes like a slow stick wich i can build with these  electronics,braught it all the way from germany,any plans same like slow stick diff size

Hello romanxdsouza ,


I have used 5 mm and 10 mm High density thermocol for creating wing. My complete plane build using Hot Glue gun. Attached picture for your reference. (With hot glue you can build it very quickly however there is drawback of increase in weight)

I don't have any experience with under cambered wings with ribs , so I cannot help you here    :banghead:

we can simply find power setup by:
Power generated by Motor+ prop + battery  > Weigh of plane (AUW : All up weight including everything fuse+ wing+ electronics) 

Power generated by Motor+ prop + battery (u mean add up the power generated correct) them multiply by Weigh of plane (AUW : All up weight including everything fuse+ wing+ electronics)  sorry im new dint understand,

hi vinayak this is my fuse,its two seperate parts 34inches, making a slow stick like the GWS,any ideas to make detachable wings to remove after flight,48inch WS,24 each side,thinking how to put the wings   on those wing mounts in the pic below

hi again is this styro foam ?can i use it for wings its 6mm will be puting ribs under

No No ... Hold on romanxdsouza  :o

This is not the material use for building your wing.. I Check your post on cell but not on computer so couldn't clearly see images  :banghead:

The material you have to use is High density themocol sheet .. (same thing called as Bio foam as well.) Please take help pf any mumbai member for finding this out. 

Guys from Mumbai please see let romanxdsouza know where he can get HDT sheets near to his residence.

PS : As a beginner I would not go or recommend with detachable/ fordable fuse or wings , as this comes with lots of complication ???   
 

thanks for letting me knowwill search for hdt how about the fuse i made

Fuse should not be flexible .. Stick to the proovan  plan if you have any. If you are building yby our own plan  there are high chances of failuer..In that case I will suggest you to follow same plan that I did. With this plan plane is very easy to build.

do you know what this will be called in india http://www.rcfoam.com/product_info.php?cPath=40&products_id=1349&osCsid=d6d43c6b67d2cb7724e4fb4d4aa8ff16

hey vinayak im goin to use 5mm  depron buying from here http://www.rcelectronicworld.co.cc/p/material-sources.html

Is it indian site ?  :o I could not access this in office .

If no then you may need to drop your plan. Otherwise you will pay more on shipping.

5mm HDT sheet will cost you max ~ 100/- in india . search any local vender here ..http://www.rcindia.org/tools-materials-and-building-techniques/material-sources-foam-board-coro-sheets/

its an indian site  5mm rs180 and 3mm rs150 says u have to buy 5sheets total and net has old rates,tottal with shipin 1390rs

vinayak tht link was help full found a shop in mumbai will call n check it out for foam

Roman go to a good stationary shop , preferably near any architect collage. Bcoz architect use these bio forms,high density thermacol and other similar materials to build their collage projects (scale model of building/malls )

I am sure you will find out there.

vinayak n swizera guess watt called num in tht link thy dont keep depron so ill be ordiring from http://www.rcelectronicworld.co.cc/p/material-sources.html   pune .

hey vinayak n swizera  need ur help making under cambered wing 48inch polydihedral with ribs wanted to knw if i hav to put a rib between the wing cords and the dihedral breaks ............where the arrows  are pointing below in the pic below

 HEY GUYS HELP HELP HELP.......ive recvd the depron found out that 48  WS is to to big FOR MY SMALL HOUSE max i can make wing span is 34inches will it work for a slow stick  with my electronics if YES,then what size evev and rudder to go for or should i stick to the same, i want to make only ss i love the way it looks

Calculate the wing area and keep the rudder at 15% of wing area