hey guys i study in dav school and the dav school worldwide have a projects meet in every october named khoj.

every year we get topics based on the class this year we have got space shuttle

each school sends one project last year too i was selected for a project on fire disaster and management

the vtol is going to be the highlight for the event but the topic otherthan that given to us is space shuttle

the project should be a complete package with models explanation presentations and working models too

then the judges evaluate the projects looking into each aspect

can u guys help me design a complete project package for this topic .

i was thinking of first explaining the basc concept behind the conventional space shuttle detailed explanation of the working of the conventional spacecraft by building a model which could fly as well as i could open it up and show them its inner workings

i would also like to conclude the project with a new space craft design very much econimic that a middle class family can afford. and this one i will make it a working that means real one.


now i need all your help i can get guys also for the new designs can you give me some ideas/designs so i can modify them and make on 

amd please do suggest the changes i need to make in the project.

and by the way from my previous experiences till now no flying equipment has been practically shown in this event. other than some big rc fellows with their trex700 just showing off but this time we will have the vtol there too

subbu

ok guys here is the master plan for the event

first a completely scale functioning model of Atlantis space shuttle with ET ans solid booster
- Completely retractable cargo bay  (finished)
- completely functioning SRMS http://en.wikipedia.org/wiki/Canadarm (half way through)
- full retractable wheels
- 3 edf systems with scale nozzle work (done)
- fully functional rudder cum speed brake (done)
- smoke system while vertical launch
- dual elevons and flaps cum body flap (done)
- deployment of parachute during landing (done)

electronic specs:-
for flight
EDF70 with 3800kv Motor Assembled      
Turnigy 2650mAh 3S 20C Lipo Pack
TowerPro H40A Brushless Speed Cont
6 ch futaba 6exap rx and tx
5 futaba s3004 servos for controls and 2 airtronics servos for the rudder cum speed brake

second - we have three LCD screens surrounding the plane and the plane on a swivel base
the lcd screens show complete model cum features with speech on a 3d model and i and my friend in the center giving more explanation and showing the working part.

please feel free to give me suggestions

oh and the custom paint job is left too

Congrats Subu for for new built. Hope your and your new Shuttle is doing well...!!!
Where did you get the Plan of your space shuttle?
What is the total weight, length calculated for fully functional shuttle?
What material r u using in building?
In case of any help required, do let me know....

Sandeep

hey guys some pics of the space shuttle








and this is one of my cleanest builds

subbu

guys for the test on this sunday i am flying it with the 2212/6 pusher with a 6*4 prop as my hobbycity stuff is in customs and i urged them to process it further and i am getting it on Monday as today is off (and no customs shall be charged  or even if they charge its 10 % that is rs 300 which i would love to pay for my goods) and so the next flight will have edfs

subbu

Neat build. Was it from a plan or your own original design? In any case, it looks very neat.  However, I have some concerns on the structural integrity of the design. Looks too flimsy for the wing and the fuselage. Should be fine for simple flying but if you do some high G maneauvers its better to reinforce it.

I am sure, flying this one is going to be tricky with a pusher. You need to have enough airspeed to get it in for landing or for any other maneauvers. IOW, landings are going to be hot!

-Ismail

well it was from the rcpowers plans ismile bhaiya but with extreme mods and the size has been doubled. as for the reinforcement i have put 5 cf rods two for the wing one the vertical stab and two for body. i still think i need some more. this model as such is a glider (as are all sts's of nasa) hence i beleive it will require a bit more speed than the normal ones. but with the speed brake and flaps i think it should do the trick

subbu

How  do you determine the CG of such a model?

Rao

actually it was easier for me as the plans from rcpowers give the position of the cg.
wait this picture shows the position of cg



to check just hold the plane at the cg with your thumb and correct by adding clay or whatever you wish

its a bit difficult with big size models like this one

subbu

hey guys i am just tied up a bit concerned about my planes thrust and weight
the total thrust at full throttle is 2.7 kg and convert to newton you get 2.6 but i took it as 2.4 n just to take in some default error
i have a precise model in fms in which i can put in the value i want

final weight = 2.6 kg but i took it as 3 for safety

i put in

3 edf at full throttle that is 2.4 newton and 3 kg mass and it takes off at 5 m

3 edf at half throttle that is 1.2 newton and 3 kg mass and it takes off at 10-15 m

2 edf at full throttle that is 1.6 newton and 2.5 kg mass (after reducing battery weight) and it takes off at                              7  m


and the model has the robotic arm which when removed the weight becomes 2 kg from 2.6 kg (original)


please please please please please help

tell me the right scenario and other suggestions

the pics and video will be up on Saturday


subbu

The model is big enough to accommodate 3 EDFs ?  Where will you attach them all ?

Would love to see a pic of the robotic arm ! 

Admirable job! Keep us posted on progress.

whats your current progress??

Good work Subu  , would definitely look forward to seeing a flying Video of this one .

I remember seeing many of your builds here like the easy star , raptor etc  but   seem to have missed the flight Video's of all of these , have seen many of you Videos like Kharghar field , unpacking of various parcels etc . But I seem to have missed most of the flight Videos except the MOSS flown by Pramod.

Look forward to this Video.

Sai

oh sure but you will have to wait till next weekend i am a bit toooooo busy at the moment.

subbu

oh another possible reason why i don't have many videos is i  fly alone these days in kharghar and no body else to take a video. as far as unboxing and other things are concerned i have my sister or sometimes even i myself video them. hmm i should opt for a helmet cam

subbu

the space shuttle has been completely built and flown and everything related to it will be posted tomorrow other than the video but surely pics will be there

subbu

why didnt you post them yet?

sorry doing it now

subbu

PLEASE WAIT FOR 10 MINS PICS ARE BEING UPLOADED

SO THE FINAL PART OF THIS PROJECT

THE SUCCESS TO SAY WAS MIXED

let me begin the story

in the display room the only working space shuttle in the whole exhibition was ours. ours could fly and do all other stuff the real one was meant to do. the judgement went on very well and judges loved it and even the host school was saying that our project would win. we even did our flight demo there and still the prize went to a school with a stationary model and i saw that model it was no competition for ours but still......

our school authorities even filed a complaint and our suggestion book was filled with 347 entries each exclaiming the fact that they had never seen such a model which could fly and after we gave them the demo they were even more overwhelmed.

the next two days i cried and more crying followed thats why i was not active all these days. it hurts when u are not even recognised for your extreme hardwork

anyway the part everybody was waiting for the pics here u go guys












subbu

edit - first look at the previous post


oh and the big thing

though the plane is built out of depron the cargo bay and aft fuse cover is built out of coro inspiration from sai uncle

subbu

Subbu - very cool ! 

BTW, I hope you know by now that learning to deal with not winning everything you participate is one of the biggest lessons in life.  If you gave it your fair share, that should make you proud (positive feedback, which you got a lot, helps). 

thanks anwar bhaiya i will remember it for my whole life

subbu

Superb work subbu..

The kind of efforts you have put in is really incredible, dont you worry man winning and losing is a part of life.

Am sure with your dedication and interest you will be a NASA employee someday..

Be Positive and keep on doing what you are best at...

All the best !

Rgds

Atul G.