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my first foam rc model

Started by bpbeni77, July 24, 2011, 02:21:23 PM

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bpbeni77

the wings are a bit wrinkled up i think...
what do you guys think?? about the whole thing...

skyraider


bpbeni77

yeah...I sure hope so buddy.

roopeshkrishna

Phoenix.........

bpbeni77

yesterday's pics

Swapnil

Nice art-work!  :thumbsup:
Could you please tell us how you did the shades and streaks?

bpbeni77

here's some more pics....couldn't get a better angle.

bpbeni77

#32
my first parcel arrives YAY!!!! ;D ;D ;D

bpbeni77

@swapnil
Thanks a ton buddy :hatsoff:
Did'nt really expect a compliment from anyone....well here's how the camouflage is done...
1. Select terrain
2. Select pattern
3. superimpose on aircraft(ensure continuity of strips)
4. paint it on.

The paint used is normal poster colours but i recommend fabric paints.
The paint looks pretty good even if you use a normal brush ..like i did. 

sundaram

Great colour scheme and nice work there beni. It is becoming to be a stunner I must say. It is looking beautiful.

how did you reinforce the wings and what covering you used? I can see the wrinkles of the skin under the paint.

Another aspect which comes to my mind is balancing the plane for CG. CG as you might be already aware of should be approx 1/3 Chord on the main wing. However while doing so you must ensure the weights are located far away from CG at the extremities of the fuse and balance the plane at 1/3 chord. this will ensure it to be a stable flyer. This is keeping in mind you are planning this for FPV. However for aerobatics you need the distribution of weight to be closer to the CG.

bpbeni77

@ Sundaram sir
Thank you very very much sir.
Will keep referring to you for guidance and will keep you updated.
thank you for all the help sir

sundaram

When making FPV Planes you need to ensure some aspects as we discussed.

1.   Firstly is weight distribution far away from CG for stability.

2.   Second is location of power system and propellers behind the nose not interfering with the camera view.

3.   Thirdly is the separation of the Control Receiver and the video Transmitter even though they may be in two different frequency to avoid Harmonic interference.

4.   Lastly is the location of the Camera right on the nose for correct perspective during flight.

So all the best. will keep you posted with various options for the FPV Camera and Tx.

bpbeni77

Sir can you please tell me again where i can get the cam and video sys in India? if from abroad which is the best option?

bpbeni77

i really really need a video tx rx with cam......and i need it fast
HHHEEEEELLLPPPP!!!!!!!!

Jatayu

Hi capt Beni,
(I hope i'm right in addressing you as captain)

Here is a source for FPV systems....
http://www.hobbyking.com/hobbyking/store/__316__172__Telemetry_FPV-FPV.html

Hobbyking is from Hongkong and one of the best rc online store there is.
Spektrum Dx6i | Blue Baby |  Fast Cat | TB-20 | Speedy | Lil' Ripper| Little Elley| PT-20 Ryan | Delsoro - SAE Heavy Lifter | Hiller 450v2|2x AXI 2217/2|2x Castle Creations- Thunderbird 54A| 2x Thunderpower RC Lipo 850mAh 65C| 10x Futaba s3114

SAE Aero Design West- 2011
1st Place Highest Payload Lifted
2nd Place Operational Availability

sundaram

#40
Beni likes his planes to be really large. His two meters wing span skywalker look alike fish box Styrofoam plane is receiving its Arkbird, 700 TVL HK camera and 900 Mhx Vtx in shillong. This time instead of packing tape nicely shaped model of styrofoam is neatly covered using thin layer of araldite and black polyester cloth. It has become rock solid composite foam core model. Nice job done in the model build beni. Personally I would have prefered 70% of this size

With its 25mm lens and 6mm aperture, night vision capability and low light video capabilities are amazing. Because of the 6mm lens this ones night vision capability is much better than my camera from rangevideo on my skywalker.

What a mess the house has become.   :banghead:

sundaram

The Black one was a total disaster at 3.4 Kgs, under powered and with unequal length of wing (in-spite of pointing it out to beni, he in his haste to fly it thought that it was not critical and confirmed to me he has measured it to be equal however later accepted that he had taken it for granted) and with major aerodynamic flaws, the proven very high winger design which is guaranteed to fly always level even in the hands of a novice was constantly rolling and crashed all three maiden attempt to the right (I wanted beni to fly it since he has to handle it solo later  :banghead: I have also a reason to believe beni did not give enough correction to level out too)

Later the white one with identical design was kitted with all electronics, OSD and camera. This one was having a skewed rudder so it is constantly yawing to one side (even with auto pilot on the radius now was bigger). however it flew great with physical rudder trim to one side.

Today morning Beni did three solo flights at his place in Assam all alone in FPV as well as LOS and all were success.

Great job Beni congrads.

PS : For heaven sake please make smaller model next time. Please keep the air-frame weight close to the weight of the complete electronics you are carrying and not five times  :banghead:

sanjayrai55

I like the Araldite/Fabric build mode. Tell me Sandy, do you dilute the epoxy? With NC thinner?

sundaram

No Sir he can't afford to use NC thinner since it is normal Fish Box Styro, Foam core would have just melted inside. Purely araldite No doubt it came out so heavy. :)

bpbeni77

@sandy sir
did 8 sorties today....
will post videos soon. Arkbird is AMMMAAAAZZIING!!
flew total distance of 6km in the last sortie. 600m distance from home at an altitude of 230m.
Video was flawless and so was the radio control.
will fly tomorrow too .. 

sundaram

start your work on the second black hawk. Save the model for 13th  ;) you know what I mean  :)

just pulling your leg  :P. Fly to your heart content.  {:)}

congrats once again.  :thumbsup:

we are already missing Nathanial.  ;D

sundaram

Posting some photographs of your model left in my camera.

Beni post some videos if recorded at your end