RC-69 Cargo Dropper - Details and Specs

[@MrCasehatter]

I watched again after a few years and Ed we have came a long way ole friend as you have help the poor or budget minded folks fly in the hobby of RC. Once again I tip my hat to you Sir and say Thank You..!!

[@robertgoldbornatyout]

👍👍👍💯💯💯I watched again after a few years and Ed we have came a long way ole friend as you have help the poor or budget minded folks fly in the hobby of RC. Once again I tip my hat to you Sir and say Thank You..!!💯💯💯👍👍👍

[@birdellamaria]

My version is looking fine! The airframe was completed a few weeks ago, motors and ESCs just arrived today. I got all the soldering done along with motor mounts built tonight. A few more hours work and a Maiden flight tomorrow!! Copied yours exactly except 11x48 inch wing instead of your 8x45. Named it my C-124 as 1-24-2012 is my daughters birthday. A video will be posted soon!

[@ExperimentalAirlines]

Differential thrust from motors using a V-tail mixer provides all the steering. The nose wheel does not swivel. Sometimes a little up elevator is needed to unload the nose wheel and allow it to skid over the taxi surface.

[@ExperimentalAirlines]

The Photon is a joy to fly and pretty straightforward to build. The Axon is nearly the same plane, but with a midships pusher and open nose for FPV, or for beginners to mush up in practice. The Noob Tube is the easiest to build, with a single-section wing, and pretty zippy - a little busier to fly.

[@Chrisdafer199]

That's what I wanted to hear, a fixed wheel will save lots of time, be cleaner in terms of parasitic drag and be one less point of failure. Thanks, I should have some pictures of it on your rcgroups thread in the next few days.

[@ExperimentalAirlines]

A Y-splitter works fine, but I use a V-tail mixer with the rudder channel mixed into the throttle input. This allows differential thrust for ground handling as well as very authoritative yaw control in the air. These are very inexpensive and easy to hook up.

[@ExperimentalAirlines]

Great news! Yes, just reverse any two motor wires to change direction of rotation. Pusher prop or tractor prop will work fine, right-hand, left-hand not important, just orient the convex side with writing forward and make sure it turns the way that prop needs.

[@ExperimentalAirlines]

Start by checking out the Armin Wing and Tubular Fuselage videos on this channel so you can understand those techniques. You'll need one 5" fuselage and two wings from 20-25" long each, and 6-8" chord. Building the nose and tail and adding the motors and landing gear are what's left. I will do a formal build video on this plane but it might be a few months so in the meantime I might recommend trying out the foamboard techniques on some simpler planes if just to get some practice.

[@DerickZ316]

Great looking plane. I'm a bit jealous!

[@ExperimentalAirlines]

@bhcnomo It's called "tulle" (pronounced "tool") and is very cheap at fabric store. The parachute proper is nylon "jacket liner", which is about $7 per yard, good for 4 parachutes. Look out for parachute video soon.

[@Chrisdafer199]

Cool thanks I was mostly concerned about not having true full throttle and considering not using a v-mixer because of this. Collected about half the parts for my RC- 69 should be flying it in a couple weeks. I only have a five channel radio so my flaps and cargo latch will share one. Just going have to have full flaps while loaded.

[@ExperimentalAirlines]

Just some ordinary 40A ESC's from RCTimer. Very reliable and inexpensive. The BECs are linear, which is 100% save for connecting multiple in parallel via a simple Y. Switching BEC's are usually safe but use caution.

[@ExperimentalAirlines]

V-tail mixers for this purpose don't need to have high resolution so any of the cheap HobbyKing or GWS brands will work fine. I'd recommend doing a search on your favorite vendor's website, or eBay.

[@ExperimentalAirlines]

You are right, it's super important. I load the cargo right at or very slightly forward of the CG.

[@emerychandler]

I love this plane, im working on the wings today, my wings are going to be a little longer because my cargo is a little heavier (140z bottle of cola length is small), cant wait to have it flying!

[@ExperimentalAirlines]

That sounds awesome. Probably a good call on the wing dimensions. We'll be looking out for your video.

[@ExperimentalAirlines]

@stonerscolony Give it a shot but I can't promise the leading edge bend will work with Depron, since it doesn't have paper, as with foamboard. You might try generously covering the outside of the the leading edge with tape before bending. Foamboard is so cheap and does the trick.

[@ExperimentalAirlines]

That is true. If the throttle stick is anything less than 100% then one motor will power up and the other will power down upon rudder input. If at 100% then only the motor on the inside of the turn will power down. It's pretty rare to be flying balls to the wall and kick in the rudder though.

[@womackke]

Nice Struts!!!

[@ExperimentalAirlines]

@bhcnomo I will put that video in queue for a cargo plane build series. Briefly hook the two motors to the outputs of a V-tail or Delta mixer and for the inputs from your receiver use the rudder channel for the rudder input and throttle channel for the elevator input. Power up with props off to verify hooked up right. Test behavior to see that left motor spins up on right rudder input, left motor on left rudder input, and throttle up both on throttle input.

[@FaTeDev_com]

very well constructed, I'm going to use your wing construction method with Depron :)

[@JstocktheRCguy]

thanks ExperimentalAirlines for the info about the parachute i need to know what the cord size on the main wing is and the dimensions for the tail are iam making a copy of your RC-69 Cargo Dropper got the 5" tube made up for the fuselage tonight and it was real easy will be posting a time-lap video on my youtube channel as i go thanks again

[@ExperimentalAirlines]

For those interested in buying planes from me, it's not something I ordinarily do, but if you live near me or are passing through Phoenix, I have some in my fleet I would consider selling just to recycle the investment. First let me know if you could physically pick up a plane, then we can discuss prices. I don't like to get too "commercial" with the channel.

[@williamsmith7970]

Thank you very much for your prompt reply. I will wait for your video. Any suggestions for my first. I use to be R&D for fxhobbies but the planes were coroplast construction and were not SPADS. I guess that would be called international co-operation.

[@williamsmith7970]

Ed your info was correct. The NOOB TUBE is a ball to fly however, is not a trainer. It is predictable but I had to stay ahead of it. Excellent flying characteristics.I do not think I will attempt the jet! I do have a question about the Axon. The craft is a pusher configuration. How did you setup the motor operation ie a pusher prop which does not look like it. Did you reverse the wires to the speed control or is the motor taken out of the case and turned around similar to nitro engines

[@williamsmith7970]

Seasons Greetings to you and yours. The Axon is ready and flies well. Now my grand son wants the the FPV equipment. Suggestions?

[@ExperimentalAirlines]

@Flyrc27 I added the specs to the description. The 20" wing sections are joined to the center section right at the fuselage verge, so it's 20" + 5" + 20" for 45" total wingspan.

[@ExperimentalAirlines]

These are 6" airfoil plus 1.5" control surfaces. A little different from my usual video suggestions, but great for this particular plane. The wingspan is 45". Have fun, share video!

[@ExperimentalAirlines]

See my other comment on Fleet Update video, but I would go for 40-45" fuselage length to go with that wingspan.

[@tadpowell5398]

Ed, Love the videos..Extreamly helpful. Built and flew the Axon..Vidio to follow. I am currently working on your cargo dropper. Can you tell me the width you used for the wings Thanks

[@ExperimentalAirlines]

@bhcnomo I can vaguely conceive of some complicated ways that might work mixing this with the transmitter but it might not. I've always done it onboard with a V-tail mixer with excellent success once correctly hooked up. No special mixes needed on transmitter, just normal rudder and throttle channel behavior as always.

[@Flyrc27]

The wing is 20" but what is the wing cord? is it 6" plus 2"aileron? and is it 20" from the center of the plane? And how far from the front of the plane is the wing to be placed? GOOD looking plane.

[@MyCrossfire1]

Very nice cargo plane. Do you have any plans you can post?

[@ExperimentalAirlines]

@MyCrossfire1 I do not have plans but it wouldn't be too hard to make using the video and a little creativity. It's just a two-piece candy bar wing on a box fuselage. I would be happy to help you in the process if you want to PM me. Also see bhcnomo (in comments below) who is also building one.

[@TheSlashfan21]

This definiely the best homemade-foam-cargo-plane that I have ever seen! Looks great and seems to be very durable. ...but a DX6i would not have enough channels for it, right?

[@OskarKopecky]

It would for sure have enough chanels

[@williamsmith7970]

I am presently constructing an AXON and I am making a mistake on the wing construction. I am getting a fold ridge on the underside of the wing about an inch back of the leading edge.Any suuggestions? I am using the same foam board that I used on the Noob Tube and I did not get as much of a ridge. For information I got the foam board at Staples.

[@Chrisdafer199]

I notice one side throttles up when you aim rudder to the opposite. does this mean that you are getting a small amount less than full throttle out of the motors when the throttle stick is all the way up? Or does setting the throttle range in the programming of the ESC's with out touching the rudder compensate for this?

[@socke243]

Very nice plane, i would love some blueprints on that :)

[@ruimartins2010]

Can someone explain how to connect two brushless motors to function this way?

[@JstocktheRCguy]

thanks with that setup will i have rudder control and how could this be done with the mixers in the TX

[@JstocktheRCguy]

could show me how you setup the differential on the twin motors

[@tommycheshire5508]

Would love to have one of these!

[@jeeperzcreeperzz]

Great video! I reallly want to build this cargo plane Could you make an instrictional vid on how to make it? It would be extremly helpful to me

[@lpbug]

There are a couple, could you maybe give a model number? Also, with two BEC you would hook them up through a Y split and put it in the BEC/throttle spot on the reciever? I'm thinking about building my own cargo plane based on this one and would like to have a good 30-40 min flight time, you think it's possible? If so, would you have any advice from your experience? Thank you so much (being a high school student and relatively new to the hobby, all feedback is appreciated).

[@ez2leapster]

Hello Ed, could you describe how you make the nose of the RC-69. I am trying to figure out how to add a nose like yours where I can have the battery bay though it is stumping me. Thanks.

[@Chrisdafer199]

hows the ground handling with a fixed front wheel? I need to know if its worth the extra engineering to make mine swivel. Can it u-turn on a regular street?

[@phillipstephenson1597]

How do you keep the change in weight from dramatically affecting the flying characteristics of the plane when you drop your cargo? I know weight and balance even in real aircraft is critical I would think in a foam plane it would be exaggerated.

[@williamsmith7970]

RC-69 Cargo Dropper is a plane that I am interested in trying to build. It looks like a good project for winter. You indicate that you do not have plans for this plane. How do I get started ? I have never built a so called foam rc plane.

[@ExperimentalAirlines]

Anything but Readi-Board from the Dollar Tree is probably not going to give you very good results. I suspect you might be having to force the bend in the leading edge, causing it to buckle at other locations on the lower wing surface.

[@ExperimentalAirlines]

Just ordinary foam wheels, 2" diameter, can be gotten anywhere: Hobbyking, Hobbypartz, eBay, etc.

[@MartinTapperMedia]

how many channels?

[@lpbug]

do you use a y splitter for the two esc servo wires?

[@troykneeee7104]

you should try a cargo door activated with a push rod and have it open just enough to drop the parachute

[@robby20126d]

Is there plans for this plain I would like to have some

[@NIcholasLoveTv]

How long would it be if the wing was 55-60inch ? It would be for FPV. Thanks Ed

[@JstocktheRCguy]

whats the angle on the cut off at the back of fuselage looks like about 30

[@JstocktheRCguy]

what is that netting material on the para-shout from ?

[@milkagami1790]

what is the size of the prop

[@lpbug]

What speed controller do you use?

[@ExperimentalAirlines]

Maybe. Where do you live?

[@kondakor1998]

do you have pdf plans for this plane?

[@JstocktheRCguy]

i just check the angle of the cutoff from your video and its about 20