Depron Cargo Plane Build (ft-guinea)

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George.vdH
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Re: ft-guinea-build (cargo plane)

Unread post by George.vdH »

Ah ok, i didn't know there was up-scaled plans. The bigger one might well have flat-bottom profile wing. Dont think undercambered would be lekker on the bigger size i guess mainly due to strenght issues of a single layer wing.

I dont think you should be concerned with too much power.. thats what the throttle is for :D Maybe weight comes to play here... I have 2=1 power to weight on my little GWS twin transporter on 3 cell so moved down to 2cell and works well... The penalty is that i'm a bit overweight on airframe target weight.

All this twin-talk makes me want to re-visit my 4-motor now converted back to twin :wink:

Its been over 24hours since you posted the plan-picks! Why havent you sliced foam yet? :lol: :lol: We wanna see progress... dammit!
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charleyza
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Re: ft-guinea-build (cargo plane)

Unread post by charleyza »

They released a few sizes : http://www.rcgroups.com/forums/showthre ... 466&page=1

Sweet, no idea what the end weight will be but I will go with light yet strong :) - easier said than done.

Yes, you must make yours fly ^_^

Lol the build will come :)
Just Fly! :P
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Re: ft-guinea-build (cargo plane)

Unread post by jeandredubois »

Hier is my Guinea Pig
Ek het my planne vergroot na 150% & daarom weeg myne so baie...
Vlerkspan so net oor die 1700mm

Moet nog hier & daar 'n sticker plak, maar verder is ek happy.
Bietjie meer as 1:1 krag verhouding, maar vlieg 18min (rustig - Vertrou nie die foam vlerk met daai gewig nie) met 'n 4sel 5000mah
Aerie weeg 2.2kg & thrust is 2.6kg
Guinea Pig.jpg
Guinea Pig1.jpg
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Lukas 1:37 - Want Geen Ding Sal By God Onmoontlik wees nie
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George.vdH
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Re: ft-guinea-build (cargo plane)

Unread post by George.vdH »

Jeandre, het jy rudder op daai airy? (Kannie sien op die foto nie) Of differential thrust?

Lyk regtig windgat..
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Re: ft-guinea-build (cargo plane)

Unread post by jeandredubois »

Jip Rudder servo is naaste servo op foto asook differential thrust met rudder input.
Maak die handeling net baie makliker!
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Re: ft-guinea-build (cargo plane)

Unread post by charleyza »

Looks really good my mate!

Wow 2.2 kg is heavy but as your blew the plans up to 150% along with the weight it should fly very smooth and scale.

What is the KV rating of your motors?
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Re: ft-guinea-build (cargo plane)

Unread post by charleyza »

I printed and cut out the wing plans. Followed them in terms of width but I wanted a foil with a flat bottom so copied a design based on what the flight test guys do with foamboard and what Ed from ExperimentalAirlines does with vinyl, Ed calls it an "Armin Wing" - https://www.youtube.com/watch?v=2fv41XSx4YM

I will glue and tape the wing together in the middle after I have run the aileron and motor wires.
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Re: ft-guinea-build (cargo plane)

Unread post by charleyza »

Some more photos, 7 was the max it would let me upload at once.
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Re: ft-guinea-build (cargo plane)

Unread post by charleyza »

Building the fuse.

I didnt have any white vinyl so used white ducktape - its not as neat but the strength is what Im after.
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Re: ft-guinea-build (cargo plane)

Unread post by charleyza »

More of the fuse.

The turtle deck and bridge will be glued in later after I run the wires and figure out how to do the landing gear.

Will mix the thrust with the rudder (as soon as I figure out how) ... so the front wheel just needs to swivel freely.
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Re: ft-guinea-build (cargo plane)

Unread post by George.vdH »

Looking lekka! =D>

I also have a "shopping-trolley" nose gear :lol: . Works ok and i dont even have differential thrust...

PS: Are you putting the sections together with a glue-gun?
Yank & Bank Dutchman

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Re: ft-guinea-build (cargo plane)

Unread post by charleyza »

Thanks :)

The duck tape is not as neat as white vinyl would have been but I can see I will get silly with this plane in the air so it probably won't live for very long ^_^

Yes it's just hot glue and tape that holds it together. The notches make it fairly strong. It should have ply internal bits for strength but I omitted them in lieu of the duck tape.

I have plastic wheels with 10mm nuts from a basket that I'm thinking of using. Will see what I can fabricate.
Just Fly! :P
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Re: ft-guinea-build (cargo plane)

Unread post by Jase »

Looking good, well done
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Re: ft-guinea-build (cargo plane)

Unread post by charleyza »

Thanks Jase, let's see if it Jason-Triple snap rolls ^_^
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Re: ft-guinea-build (cargo plane)

Unread post by charleyza »

Nacelles, stabilisers and rudder coming together!
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