RC India

RC Models => Electric Planes => Topic started by: PARAM on December 11, 2011, 04:00:34 PM



Title: Super Bandit 64mm EDF Steve Shumate plan
Post by: PARAM on December 11, 2011, 04:00:34 PM
This what we are making.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: PARAM on December 11, 2011, 04:02:46 PM
Only the under carriage is left.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: abhay on December 11, 2011, 05:06:37 PM
Excellently build, but I slightly doubt the way control rods for elevator is fixed..
Even if it is going within some lubricated pipe, still efficiency will decrease with stiff rods.Flexible rods however will serve the purpose.
Brake wires are more efficient at such type of installations.

Excellent built  :thumbsup:


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: Sumeet on December 11, 2011, 05:25:18 PM
Great build Param...!!!

 :hatsoff:

I am a great fan of Steve Shumate. The jet is looking nice and smooth. Keep it up.

Oh and BTW what power system are you going to use in this one?

I too have an F15 Eagle waiting for the electronics, That is also on Steve Shumate's Plan. But I was thinking to order a pusher prop setup for it.

But now I will wait to see the results of your parkjet with the EDF setup. Please do post more pics and don't forget a Maiden Flight Video.  >:D

Cheers!!!


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: rcpilotacro on December 11, 2011, 05:53:31 PM
i am maidening this bird ;)


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: anwar on December 11, 2011, 08:48:53 PM
:goodjob:


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on December 11, 2011, 11:18:41 PM
Thank you Anwar, Abhay and Sumeet. My son also joins me in conveying the gratitude.

@ Abhay the linkage for elevator is a HK Push rod sleeve pair comprising a flexible tensile rod through a plastic tube and working perfectly.

@ Sumeet the power system is a 64mm EDF with 3680KV 24mm in-runner, 40A ESC, Turnigy Nanotech 2200AH 3S.

I am little not satisfied with power to weight ratio. It is just about 0.9 with AUW about little less than 700gms.

In gusty's opinion it is intake loss. may be I will open two more inlets on the sides.

@ Gusty When we are going to maiden both jets together then I will have to maiden the giant Mirage 2000 with 90 mm EDF.  ;)  >:D


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on December 12, 2011, 09:45:43 AM
The Plan is here

http://www.parkjets.com/bandit/

It is for a 40mm EDF and scales up to fit a 50mm EDF.

The plans fuse has been scaled up to accommodate a 70mm EDF in my case. however decided to fit a 64mm EDF instead on the same modified design. May be a bad decision which on flight test will be clear. On the down side more you increase the Power system the AUW is also increasing considerably with it due to bigger fuse, bigger battery associated with the Power System.

Too busy making it, did not document it. Some photographs pulled down from net to amplify the built inside. ( The EDF is 50mm in examples Photos)


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on December 12, 2011, 09:47:04 AM
The Brushless used with the 64mm EDF

http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=15186


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: rcpilotacro on December 12, 2011, 11:01:37 AM

In gusty's opinion it is intake loss. may be I will open two more inlets on the sides.


All EDF makers must know this, static thrust of an edf largely depends on the intake design, thumbs rule is it should be diverging intake for a subsonic flight (Very slightly diverging would do) a converging diverging would have intake losses due chocking of air flow.

However this is only true for static thrust , dynamic thrust of a edf would be much more than static thrust. at slightly higher speeds she will perform quite well.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on December 12, 2011, 11:15:47 AM
You would have noticed by now, one another blunder which could have been avoided was placing the linkages and servo for ailerons on the belly. I should have just mounted two servos on the sides from top, then with simple wing skids it would have easily done belly landing. Now I am sweating with under carriage.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on December 14, 2011, 07:09:01 PM
Maiden was not happy ending  :'(. Gross lack of power took off nicely, however slightly tail heavy so it was maintaining higher alpha and clubbed with lack of power did not pick up speed at all and in an attempt to turn around and land lost control and trashed nose.

I think will make it all over again. Gusty says repair nose and fly again. Since lack of power thinking no fun flying same setup.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: ujjwaana on December 15, 2011, 01:38:30 AM
I have to make one too.... With 64mm EDF and motor lying with me, this model gave way to other Foamie/Balsa models..


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on December 15, 2011, 04:38:56 PM
Heading to Gusty's advice opened two more intake ports on the sides of the inlet in the shape of bell. Definitely has improvement in thrust. Cannot still say it has touched ratio of 1. However worth try again with a Nose Job.

So the Model is under Nose Job for second attempt.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: rcpilotacro on December 15, 2011, 05:05:14 PM
we were Maidening Mirage 2000 and Bandit (Pundit as param calls ) together, M2k Flew well. video to follow. this time i am going to maiden this beautiful maiden. what say sandy


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on December 15, 2011, 05:58:59 PM
Surely Sir. You are most welcome to  :)


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on December 15, 2011, 10:51:37 PM
Gusty defenitely I am getting too good with nose jobs  ;)  :giggle: :giggle:

its looking much better than the original. The CG has been rectified. Now it has been moved forward by moving lipo ahead. Its exactly as per plan.

With much improved thrust it will defenitly fly well.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sravan on December 15, 2011, 11:18:08 PM
Sundaram sir i must say grt built. Sir 4 cell edf s r pretty powerfull. My fren has a f 20 tiger shark. We used 3 cell on it so it was pretty underpowered during launch. Then we switchd to 4 cell nd it has pulsating power. Very fast. I had to throttle back after launch othrwise she wld go away very fast. Just chk if ur motor can take 4 cell. Also tat can solve the prblm of cg being back.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on December 15, 2011, 11:30:32 PM
 Thanks Sravan  :thanks: . You are absolutely correct. However this motor is only three cell capable. Just in three cell it reaches 32 amps and 350 watts. I should have contoured the duct for smooth flow which I did not. Now with additional inlets it has good thrust.

I do have a 70mm EDF with a rewound outrunner which is 4S  capable and has very very good thrust. I wanted to make again with it, but gusty was insisting on flying same for better practice.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: rcpilotacro on December 16, 2011, 07:14:37 AM
Sandy if you have time, make it chequered color scheme on the under surface


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on December 17, 2011, 09:23:03 AM
The beautiful maiden is ready for your maiden Gusty.  ;D :thumbsup:


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: rcpilotacro on December 17, 2011, 10:39:22 AM
i  like the reheat in the exhaust


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: rcpilotacro on December 17, 2011, 10:48:14 PM
did the maiden flight, she flew like a charm, T/W was 0.6 static and about 0.9 dynamic, Looped and Rolled well, landing was at about 10 alpha, (She stalls at 13-15 alpha) 30 % Power, immaculate build and flying. Sandy should put up the video soon


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on December 31, 2011, 01:04:26 AM
The long overdue maiden video. Thanks for watching.

http://www.youtube.com/watch?v=hMildrxlnT8



Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on February 16, 2012, 12:53:51 AM
This model was totalled last Sunday flying. So now back to drawing board. This time it will also have a thrust tube for better performance.

planning on a 70 mm EDF with a 4S setup. Will be having amazing thrust for sure.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on February 26, 2012, 10:49:03 PM
Plan modified for a 70mm EDF All cut and ready to be glued and sanded. Hopefully will have a four cell setup after load test.

This time the wing and nose is cut with 8mm Depron. If load test thrust is good with 4S it is going to have a KFm2 also in the wings.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on February 26, 2012, 11:01:11 PM
Last one made same but with 64 mm GWS EDF with brushless setup 3 cell was also a super flyer

http://www.youtube.com/watch?v=Mz0gLw-BlaQ


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on March 04, 2012, 11:09:30 AM
Build progress is going too slow. However some updates


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on March 04, 2012, 11:18:00 AM
Some more

This time the wing span has been  increased by about an inch and the chord also increased by an inch. It has a 70 mm EDF though the wattage on four cell is much less at only 450. Therefore the KFm2 is off however the 8mm foam on the wing has been sanded to a thin airfoil with smooth rounded leading edge and sharp tapering trailing edge.

The fuse is also going to be smoothly rounded. Which will definitely contribute to overall lift.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on March 07, 2012, 04:29:29 PM
Further update


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: rcpilotacro on March 07, 2012, 06:02:13 PM
 >:D


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on March 07, 2012, 06:12:58 PM
  >:D >:D  8-)


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: VC on March 07, 2012, 06:25:35 PM
 :hatsoff:


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on March 07, 2012, 06:40:44 PM
Thanks VC


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on April 04, 2012, 01:09:52 AM
Finally completed today. This has a 650 watts 70 mm EDF on four cell setup. AUW has gone up to nearly 950 gms. The wing has Kfm 2 airfoil. The ailerons are on flaperon mode with flap trimable and elevator to flap mixing when required through switch. The CG has been moved up by three CM since unlike a flat plate,  the well shaped airfoil along with KFM2 is going to produce good lift. Further since also has  adjustable flaps.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on April 04, 2012, 01:16:01 AM
Some more


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: manojswizera on April 04, 2012, 09:32:55 AM
Beauty  (:|~
Sir which amp battery are you using ? The setup must be draining the battery soon.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on April 04, 2012, 09:37:15 AM
Thanks Manoj,

Its Turnigy Nano tech 4S 2200mah. I am expecting 4 min flight time with vigorous flying and more on docile flying.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: ujjwaana on April 04, 2012, 12:57:23 PM
Great build Sundaram sir - its more looks like an ARF with the paint work! you are always both the inspiration and 'Teaser' for many here on the forum.

Having 4 balsa builds still on my workbench in different stage of completion(and 2 self cut kits in the box) , I dare not start on a foamie!! But having all the parts already including EDF/printout, and Bandit being top of the list, I think it is irresistible to start this one finally.  The effort:pleasure ratio of Foamies is unprallel, specially after my scratch build Sift KESL giving  biggest bang for the effort/money!!

Keep this thread alive with updates! should inspire many

<Edit>
Sundaram sir, could you please post a clearer picture of the Elevator setup ? The split elevator look interesting!


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on April 04, 2012, 08:43:50 PM
Thanks ujjwaana,



Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on April 04, 2012, 08:43:50 PM
It is a very simple mechanism where both elevators are connected to same servo using flexible push-rod sleeve snake. The placement of the servo is such a way that both surfaces have equal throw. In this case since it does not require large throw it is working perfectly. In fact it is on 50% DR and -60% Expo. So no great worries.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: DrGKhanna on April 04, 2012, 09:15:47 PM
Superb built sundaram sir. The paint makes it look more fierce and deadly. Harbinger of destruction. :thumbsup:
Awseome.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on April 04, 2012, 10:07:46 PM
Thanks Dr Khanna,

I was hoping unlike the last model this one will light the sky on fire  ;) So the colour scheme.  ;D


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: Harsh1157 on March 11, 2017, 01:31:06 PM
Bro can u please send a pdf file for the templates of the jet on "skbishwas55@gmail.com"

Thanx :hatsoff:


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: bijo on March 11, 2017, 01:52:12 PM
can you share the blue print the built is very good


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: sundaram on March 12, 2017, 06:48:18 PM
I can send you the original Steave shumate version which is for a 50 mm EDF. I had modified it for 64mm by increasing fuse height and width.


Title: Re: Super Bandit 64mm EDF Steve Shumate plan
Post by: Imperial fire on March 12, 2017, 11:41:54 PM
What's the static thrust on that edf with a 3s???
Power consumption??
Also try installing afterburners....there is a vid by flitetest of how to do it...
Don't use butane ..try using cigarette lighters....
I wanna do one...but my edf from bangood ain't delivered yet....so waiting....