Building the Cargo Twin!

by Morgspenny | November 26, 2013 | (13) Posted in Projects

Cargo Twin Dropper 

My name is Morgan Spence and I am 14 years old from Kilbarchan, Scotland. This Summer, (which strangely for Scotland was rather warm) I scratch built a Cargo Twin Dropper, from the popular RcGroups thread. My hope has been that this would be an excellent platform for practicing with ailerons, dropping cargo and possibly for FPV in the future.

This was the first plane that I had scratchbuilt, and it was slightly hard than I expected!! There is alot to think about when building your own planes... aero dymanics, weight, power, strength, and whether or not the thing will actually fly! However, after 5 weeks of building, modifiying and testing I finally managed to crack it. The wingspan on this plane is a little over 1100mm and around 980mm in length. 

DEPRON FOAM SUPPLIER - UK- http://www.depron.co.uk/

I am operating on 5 channels using an extremely cheap Hobbyking radio (something like $33!) and twin 1300kv Bluewonder motors. I'm spinning 8x3.8 props with HK SS 8-10amp esc's and 4 Tower Pro SG92R servos (and an extra for the bomb baydoor at the rear of the plane. The all out weight of the plane comes to a light 656grams, with a 1300mah 3s battery loaded. Cg is around 1/3 back from the leading edge of the wing. I've modified the orginial plans and added three roof top compartments and doors, for extra ease access the electronics, battery compartment and bomb bay. Flight times are around 13 minutes on a 1300mah 3s.

Specs-

Motors- 1300kv Brushless Bluewonders- (2x)

Esc- HK Super Simple 8-10Amp Esc- (2x)

Reciever- HK-T6A V2 Reciever

Servo- Tower Pro SG92R- (5X)

Prop- 8x6- (2x)

Leads- XT60 Y leads, Servo Y leads and extensions-( 4x)

Battery- Turnigy 1300mah 3s Lipo

Weight- 656grams

Wingspan- 1100mm

Length- 980mm

This plane is capable "transporting" a 200gram cargo load (parachute men and waterballoons). The cargo door servo is operated be a knob on the top of my transmitter which allows me to open the door to what ever angle I want and then close it after the load is released. Inside there is plenty of space for electronics and possibly a camera at some point. My thro's are set high so I can perform the occasional 3d manouver! I've built this using 6mm depron, packing tape and a £3 hotglue gun! I'm current doing test flights, and so far nothing has burst into flames, no mid-air drop outs or crash landings. (yet.)

Some pictures.

 

Please comment, rate and enjoy!!!!!! :-)

COMMENTS

NoUsername on December 1, 2013
Excellent Build, wish I could have built one of those!
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Morgspenny on December 1, 2013
Thanks!! Glad you like it!!! It takes a lot of trial and error but it's worth it in the end!
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Shorty1953RCK on December 1, 2013
Nice looking plane. Great job I am 60yr old and I don't think I could have done such a nice job of it at all. Keep it up....
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Morgspenny on December 1, 2013
Thank you! I really appreciate it! Just hope it lasts until summer!!!
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galaxy engineer on December 1, 2013
Great build.......Thanks for sharing!!
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Morgspenny on December 1, 2013
Thanks!!

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lracnolip on December 1, 2013
Very nice build, would love to see a flight video of you dropping stuff from the plane.
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c.sitas on December 1, 2013
Fantastic job.How much down thrust do you use. How did you gar up your motors. I always ask just to learn Keep up the good work .

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Morgspenny on December 2, 2013
Thanks, I use around 1mm down thrust on both nacelles.
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FKreider on December 1, 2013
Awesome job, that plane looks great!
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Phoenix1962 on December 2, 2013
Nice build! I really like the detail you added. Really makes the model stand out above the rest!
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Axl on December 3, 2013
Well done looks good in the air too
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sailorJohn on December 3, 2013
Lookin good
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filken on December 4, 2013
Nice job! The plane looks great! It's a nice bonus that it flies well. It's good to see young people putting the time and attention into projects like this. Keep pushing yourself to learn new things and do more. It's worth it. Congrats on a successful build. Any ideas for your next project? :)
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Yogenh on December 5, 2013
I love it. It looks so good. I would love to build one myself. Do you have plans for it. I know that I would love to have them and I bet that a of others would too.
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Drezed on December 5, 2013
Plans here in various sizes http://www.rcgroups.com/forums/showthread.php?t=1124466 . Great flying plane(I've built one as well), plenty of opportunity to personalize and well worth the effort. :-)

Jeff
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Drezed on December 5, 2013
Looks great, Morgspenny. Perhaps after flying mine for the past 2 years, I'll actually get around to painting it! For a bit more thrust, try some GWS EP9050 props.

Jeff
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Gordie on December 6, 2013
You did a great job. Well designed and it looks nice in the sky.
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ankit dhama on December 9, 2013
hi great job in good age i also making a trainer plane i am new in this my first two flight was so bad planes just go up and them without control it come down plane wait around 700 gm and moter 1100 kv and esc 30 c and battery 2200 mah and wings span is 1500 mm and aerofoil angel of attack is 10 is you can help me them please msg me in dhama64@gmail.com i will send pics please help thanks
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hele559 on December 12, 2013
Hey, nice job

just wondering, where did you get the Depron from, I'm in New Zealand and the local shop doesn't sell any and the online shops don't really have anything,
have fun

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Morgspenny on December 13, 2013
Hello! Hmmmm.... Depron is so hard to come by if you are not in the States... I eventually managed to track down a UK supplier if that's any use?- http://www.depron.co.uk/

Thanks.
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petedotnl on December 22, 2013
I bow deeply to you, amazing build. looks crisp in the details. after seeing this i'm gonna build my own. keep on building you're doing great. (and keep sharing pictures of course)
@ hele559 try looking for depron at a flooring retailer. here in the netherlands i found a shop in underflooring that sells depron.(it's an isolating underlayment for laminates)
greetings and an amazing 2014 to all.
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Morgspenny on December 24, 2013
Thank you for your kind words! Merry Christmas!!
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Ceramic on December 29, 2013
Hi Petedotnl
I am dutch as well and would really like to know where you bought the material to build this awesome plane. I am only a beginner in building, so do you have any suggestions that could help me? I even do not know what "1mm down thrust on both nacelles" means... And are the props spinning in opposite directions? Maybe you can drop me an E-mail at: ceramic999@gmail.com (kan dan natuurlijk ook in het nederlands !!)
Morgspenny, my compliments on what you accomplished, it espired me to build my own. Hopefully I wil get it to fly aswell.
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Morgspenny on December 29, 2013
Hi, I'll email you as soon as I can! Thanks,
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cassioML on December 23, 2013
Amazing build!, i start today my own cargo twin like your plane.
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Morgspenny on December 24, 2013
Thank you! Can't wait to see it once it's complete! Merry Christmas!
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llknott on December 28, 2013
Awsome looking plane. Did you make plans for it that you could share with us?
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Morgspenny on December 28, 2013
Hi, I found the plans from a RcGroups thread, The Twins: Multipurpose Cargo Planes. Plans are for 25%, 50%, 75% and 100%. I built mine using the 75% plans. Here is the link- http://www.rcgroups.com/forums/showthread.php?t=1124466 Thanks and hope this helps you!,

Morgan
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Marian0616 on March 31, 2014
Nice One!!!Do you have any idea on where can i buy a kit?thanks
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Origamipilot on February 19, 2015
You can now buy a kit on the flitetest store
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Flying Fox on November 19, 2014
Nice Man
And i saw your radio in the backround. do those work well?
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Origamipilot on February 19, 2015
I use the same radio and they work pretty good.
You can program a few mixes and you can have dual rates, however thats all, no expo.
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Building the Cargo Twin!