Regal Bipe 3D from Depron/Foamboard

Started by sanjayrai55, May 27, 2014, 06:31:51 PM

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sanjayrai55

After the sweepstakes it's been too quiet!

Decided to build something  :giggle: :giggle:  Again! One of those fits of masochism which aeromodellers periodically suffer from  ;) ;)

Regal Bipe adapted from plans on RCGroups

Brief Specs: Span 36" Length 36"
Chord 11/9 Tapered
AUW 1.1 Kg (about 200 Grams overweight  8-) 8-))
Motor/Prop: 3536-1100  12*6

sanjayrai55

First time I'm building a Kfm Wing. This is 7.25%

sanjayrai55

Wing, fuse

sanjayrai55

I had these aileron pushrod tubes for over 10 years. Finally found a use for them  ;D ;D

The ESC sits below the 4 square

Used 9 g MG Servos for Rudder/Élevator, and a single 17 g servo for the Ailerons

sanjayrai55

Bottom wing fitted

sanjayrai55

All fitted. Some finishing left

sanjayrai55


sanjayrai55


sanjayrai55


girishsarwal

Sweepstakes or no sweepstakes sir...you're unstoppable
Looks lovely
gs

sanjayrai55


docnayeem

Great build sir .... Hats off ... By the way ... Is foam board / dapron  same as biofoam ?

yash10896

Great and fast build sir all the best for maiden :)

Regards
yash :hatsoff:
Challenges are what make life interesting and overcoming them is what makes life meaningful

sanjayrai55

Thanks Doc. I have so far come accross 3 types of Depron

1. Compressed foam, called biofoam. Brittle, lacks toughness, but very light. Can be improved a little by putting a layer of clear packing tape. I've used this in the top of the Kfm wing

2. "Depron". Biofoam with a very thin layer of polyester skin on both sides. Stronger than biofoam but light (heavier than bio). Hoever linited strength. I've used this for the main wing

3. Foamboard: Biofoam covered on both sides with a layer of thick, strong paper. The strongest of the three - and by far the heaviest. Building with this always puts the model wide over the scale. Used it for the fuse and tail feathers

sanjayrai55


Sandeeppande

Awesome build Sir, await maiden tomm... {:)}

K K Iyer

Wow.
Jitna kaam aam admi 49 din me karta hai,
Utna Rai saheb ek subah se sham me kar lete hain.

Sir,
Next project suggestion for you is  coro quad Taj Mahal replica with rotors on minarets!

rcrcnitesh

Awesome build
BTW Sir, didn't get the second foam what type of foam is it.
I've seen the first one and the third one first time hearing abut the second one.
Maker | Aeromodeller | Teenager

maahinberi

Very nice build sir, waiting for Maiden!!!
Maahin Beri - Introduction and Hangar
Seagull Arising Star, Seagull Low Wing 40, AviSport (SPAD), Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.

maahinberi

@KK Iyer Sir: That would be something to watch!
Maahin Beri - Introduction and Hangar
Seagull Arising Star, Seagull Low Wing 40, AviSport (SPAD), Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.

docnayeem

Thanks for the explanation rai sir : bow

sanjayrai55

Thanks Sandeep, Nitish, Maahin  :thanks: :thanks:

Maiden will only be around the middle of June as I am travelling

sanjayrai55

Iyer sir - Thank You!!  :salute:

I have a better build idea, but cannot do it so I'm leaving it to you

Build a Giant Quad, lift the Taj Mahal and move it to Indore  :rofl: :rofl:

shubham_stjohns

Sanjay sir...u hav made an awesome plane..I am new to dis field...wid just 1 year of experience in my cllg..I just wanted to know where can I get all d three types of biofoam u decribed especially last one..foamboard..in delhi or varanasi..or in any other northrn region of india..I need it for my wings...I hav depron but it is too brittle to bend...

sanjayrai55

Thank you

Available in Delhi at Sitaram Stationers, Suoth Extension Market Part 1. They have another branch in Lajpat Nagar

There is a technique for creating bends in Depron. See this http://www.rcindia.org/electric-planes/my-first-foamy-scratch-build-baby-blender/

Good luck