1/6 Scale Fleet Bipe in Corro

Started by sanjayrai55, April 25, 2017, 05:22:11 PM

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sanjayrai55

1/6 Sport Scale model of a 1930 Fleet Bipe

Plans here: http://outerzone.co.uk/plan_files_07/7237/Fleet_Bipe_1930_oz7237.pdf

Specs:

Span 56"
Weight: 5 lbs (~2.3 Kg)
Length 42"
Wing Area: 860 sq. in.
Expected Wing Loading: 14.2 oz/sq.ft.
Expected Wing Cube Loading: 5.8


sanjayrai55

I will be modifying suitably to suit the Corro build, and materials available with me

Will be using a TT 46 Pro with 11*6 MAS Prop

sanjayrai55

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PRANAVK09

Hello sir ,
Your builds are amazing. :hatsoff:
This combination of coro and balsa makes planes cheap and look more colorful..... :bow:

This is a request ...
Can you please put light on how to convert these models plans available in balsa into coro.....?
And how to check CG, Power plant, tips ,tricks, etc...

sanjayrai55

Thank you Pranav

I think that will need a separate series of posts!

If there is enough interest, I certainly will do it

PRANAVK09


DominicM

Awesome job. Correx is such an awesome material for modelling. Had many models built from this marvellous material. Fantastic project. Well done!
'Essential RC' action in UltraHD and 4K
YouTube: https://www.youtube.com/c/EssentialRC
Facebook: https://www.facebook.com/groups/EssentialRC

sanjayrai55

Thank you Dominic. Still quite a long way to go before she's in the air :D

vineet

coro sheet bends after few flights , i would be good if you would have done the whole fuse with balsa , this looks awesome by the way.

sanjayrai55

Thank you for that observation Vineet

I've built over 40 Corro Models, and never had a sheet bend. If you have had that issue something is wrong with your construction technique. Suggest you take a look here : http://www.rcindia.org/rc-people/builds-i-have-posted-on-rci/

sanjayrai55

This corro model has done over 350 sorties; nope, no corro bending after a few flights


sanjayrai55

#15
Had been busy, got some build time in last night and this morning








sanjayrai55

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Top Wing








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#19
Top Wing complete





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manojswizera

You have some great skills, sanjay sir.
Never thought of those small wood at wing tip and that semicircle at the center of the wing.
Russ-40 Trainer, Mr.moss, Pushler, Skysurfer, Mugi , F-22, Red swan, Xtra-300, redfury, flying mantaray.

sanjayrai55

Thanks Manoj. The semi-circular part is actually part of the design  ;D. Maybe so the Pilot can come out without banging his head on the wing?  :giggle: :giggle:

manojswizera

Russ-40 Trainer, Mr.moss, Pushler, Skysurfer, Mugi , F-22, Red swan, Xtra-300, redfury, flying mantaray.

asinghatiya

With your increasing builds & usage of Corro; Govt. should now introduce Luxury tax on Coroplast.

:-)

sanjayrai55


K K Iyer

@sanjayrai55
Sir,
Refer reply#15
Pic 1. How did you make that cowl :headscratch:
Pic 2. Never knew what was possible with coro/balsa/aluminium tube combo. Wow!
Regards

sanjayrai55

Thanks Iyer Saheb

I guess the cowl build is a rhetorical question. However, I used bits and pieces of scrap Balsa, lots of cyano, and even more sandpaper coupled with muscle and sweat  ;) . The painting was done with a brush and ordinary Asian Paints Enamel, with light sanding between coats

I "discovered" a scrapped TV H type antenna from the 70's lying around, and got some 9 mm tubing from it. Used it in my Piper Cub too, for wing struts. Just flatten the ends in a vice. Also, I plan to use some for my Wind Sock shaft :D

sanjayrai55

#28
Started on the Bottom Wing, which is a fair bit more laborious. The aileron width is 2 1/2" so to prevent it flexing in flight, the normal corro aileron style had to be modified. I decided to go in for a built-up aileron



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DominicM

'Essential RC' action in UltraHD and 4K
YouTube: https://www.youtube.com/c/EssentialRC
Facebook: https://www.facebook.com/groups/EssentialRC

sanjayrai55

Thanks Dominic

With the construction phase over, the next will be the assembly and finishing, starting with the rather difficult alignment of wings/tail/engine

sanjayrai55

#35
Setting the wings - parallel to each other, and square with the stab




sanjayrai55

#36
The aileron horns presented a new problem. At the location where the horn is the sited, the aileron thickness is 18 mm. If one adds up the thickness of the horn base plus the retainer a screw of 27 mm is needed. Normally a button head self tapping screw is used, but at that length, the easily available (with me ;) ) screws have a top diameter of 5 mm. So, I drilled and tapped a M3 thread into the retainer  ;D




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#37
Fitted the Elevator & Rudder servos and control rods/horns









sanjayrai55

#38
Aileron Controls


sanjayrai55

#39
Wing struts from Cycle Spoke, with a metal clevis at one end, and a bend at the other. The wire is embedded into a 12 mm Balsa dowel, fastened with epoxy, and secured with heat shrink tubing








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gaurang.1972

Excellent work  done with coronary and balsa railway sahib

sanjayrai55

Thanks Gaurang - your auto-complete is in overdrive  :giggle: :giggle:

sanjayrai55

#43
Continuing after a break of two weeks- travelling

Windcreen, cockpit





sanjayrai55

#44


Monokote on the balsa front



flyingboxcar

Railway sir, really enjoy watching your ingenuity at work. Especially when it comes to working on coronary  :giggle:
If you are really into scale you should be here. www.rcscalebuilder.com

sanjayrai55

Quote from: flyingboxcar on May 26, 2017, 05:28:19 PM
Railway sir, really enjoy watching your ingenuity at work. Especially when it comes to working on coronary  :giggle:

:rofl: :rofl:

My pleasure, CoxBar

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harshit batra

THAT    IS     LOOKING   AWESOME sir!!! :bow: 
remember to put a nimbu mirchi for nazar protection before maidening this beauty :giggle: :giggle:

sanjayrai55

Thanks Harshit

Nimbu hai mere paas, Mirchi aap laana  :D ;D

harshit batra

Sure sir!!! I can bring full puja ki thali too for this model ;D :giggle:

prabal276

Nice going sir!
A beautiful craft taking shape........

flyingboxcar

Nimbu, Mirchi et all will not work. You need to propiate the God Dionysus
If you are really into scale you should be here. www.rcscalebuilder.com

sanjayrai55

Besides propitiating all the Gods, the build should be true; and that sir, in corro is always iffy  ;D

Call it the pleasure of corro - you are never entirely sure how the model will fly  ;)

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rastsaurabh

No words sir.....

Its a beautiful model and good use of Coro, Balsa & Mind.

And Nitro on top of these material is excellent.

Only thing I can add is just color the fuse coro to the cowling color.

regds
Saurabh

sanjayrai55

Thanks Saurabh

Couldn't get the exact shade unfortunately :(

sanjayrai55

#59
Had a busy 2 weeks, finally finished


taitil

Great work Sir.  :hatsoff: :hatsoff: :hatsoff:
You will enjoying a lot of flying biplane.

sanjayrai55

#61
Thanks Taitil-bhai :)


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DominicM

TOP JOB! Would give you a hug if I could. Great enthusiasm and perseverance to get it done. Please check everything before first flight. i.e. correct movement of control surfaces. I want to hear that the maiden flight was perfect. AND "fly 3 mistakes too high" as my instructor used to tell me many years ago. GOOD LUCK!
'Essential RC' action in UltraHD and 4K
YouTube: https://www.youtube.com/c/EssentialRC
Facebook: https://www.facebook.com/groups/EssentialRC

sanjayrai55

Dominic; thanks a million  ;D

High praise indeed coming from a veteran of your ilk  :salute:

manojswizera

Russ-40 Trainer, Mr.moss, Pushler, Skysurfer, Mugi , F-22, Red swan, Xtra-300, redfury, flying mantaray.

sanjayrai55


sanjayrai55

Testing out on ground - to check tank, plumbing vibration etc. Also, to try out my new starting table and Caddy Box ;)


samlikespad

Wow Sanjay bhayya  {:)} {:)} {:)} another master piece  :salute: Good luck with the maiden  :thumbsup:

sanjayrai55

Thank you so much Sam. Nice to see you on the forum

Sent from my Moto G (4) using Tapatalk

sanjayrai55



Sent from my Moto G (4) using Tapatalk

sanjayrai55

Sorry for the video quality. Guess we needed Dominic :)

Sent from my Moto G (4) using Tapatalk

K K Iyer

Who cares about that video where the pics are absent? Soundtrack is interesting though...
I'm still admiring the still pics in previous posts

What a pleasure to see some RC/aero stuff.
(Tired of discussion of import issues.)

Today's good deed - got a friend's old OS FX 25 up and running, even though it meant giving him one of my OS needles!

Sir, please ask your numerous chelas to post some stuff relating to RC/Aero...

Regards
(Exchanged msgs but couldn't meet Dominic during last month in UK)

prabal276

Iyer sir,
Let my exams finish. I have some big things planned.
😁

sanjayrai55

You were in UK? I thought you were in US negotiating to purchase Tower Hobbies  ;)

sundaram

Awesome build sir. beautiful. will eagerly wait for a good flight video. The one posted is not doing justice to the beautifully built model.  {:)} {:)}

sanjayrai55

Thank you Sandy sir  :salute:  Will try for a better video soon