Vetical Take Off and first time on Water | 3D-Printed Delta Boxwing
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- Опубликовано: 15 ноя 2024
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Add steps to the pontoons so that it can rise out of the water. Just like pontoons on a float plane. They all have stepped hulls to break free of the water. They don't have to be very big. Only a few millimeters of step. It's a great design. Has lots of yaw authority too. You can use some foam board stuck to the bottom front half of the pontoons and make a temporary step to test on the water. I'm pretty sure it will break free of the water and fly. Good luck, have fun!
Hallo René, wir haben uns 2018 nahe dem Bodensee kurz kennengelernt. Seitdem verfolge ich deine Flugzeug - Entwicklungen mit großem Interesse - vor allem, wenn es ungewöhnliche Konstruktionen sind. Das habe ich selbst auch gemacht (keine Drucker 😢) und bin 1000 mal auf die Nase gefallen. Zum Schluss hat's doch immer besser funktioniert!
Viele Grüße, Jochen
Ja so ist das. Irgendwann klappt es 😅👍
Gorgeous looking plane!
Jes! What a printer farm! 😳
Great progress! At high Alpha, do you think the turbulent flow is masking the control surfaces on the top wing? Can be a problem with T-tail tailplanes, too.
This is awesome
13:45 have you considered using differential thrust for turning? This should be possible given there are two separate ESCS.
Came here to suggest the same thing instead of an underwater rudder.
@@chris993361 great minds think alike lol
@@morkshanmedia3998 lol true enough
Its more a question of draft in the water. We are sitting too low and the wing pontoons are causing too much hydrodynamic drag. I have already modelled a new deeper hull and flattened the wing pontoons to get the entire craft higher in the water and wings just touching. That way the rudder inputs should work better and allow for improved water taxiing control. The next question is whether we can take off from the water. Rene is in the process of adding more powerful motors and larger props. Stay tuned!
@@marcphilippveenendaal4394 Great work. My only word of caution is bigger props and motors mean more weight. Which means more battery to maintain flight time, which means more weight. If you are trying to get it out of the water...I would guess you should be trying to slim down on weight vs trying to make the thing more powerful. I think you are on the right path though with making the hull deeper. I think I'd focus on water dynamics vs more power...
I love the plane design, but I would be equally interested in the plans for that spray can shaker you built using an old jigsaw. 😁
Seen at @15:28.
Very interesting! Eager to see the difference the over wing vortex generator tape makes.
Rene and I are also waiting see how that all works out!
Interesting concept - some of the comments below suggest some flaws. I would love to see you add a flight controller, with Ardupilot, which would allow you to programme/set up some more controlled transitions and possibly even control your cobra moves...
Super work ❤
Thanks - We are proud of the development so far!
I wonder if you instability in the low speed regime is from more, or all lift being produced from the prop wash on the upper wing and nothing in the lower surface at those speeds.?
Wirklich beeindruckend! 👍
Vielen Dank von uns beide!
Yes we noticed. The lorry was an IFA.
Verrückt wie viele Printer hast Du da 😂?
How much is the cruiser file and can you make a detailed video on how to assemble and disassemble it also the electric parts etc
Hi ! Now that it's done, what would be SUPER GREAT is a scaled down brother model that can achieve 250g AUW ;) !
Oh, its not done. We have to finalise all the finer details and see if we can achieve our planned water take off challenge we have set ourselves...
super cool
Awesome as always! Gotnna get a Qidi Plus4?
How about adding canards?
For more yaw controls you could try differential trust
If you saw on our previous video, when there is little resistance, the yaw control is awesome. Rene pulls some instant 360's on the ground. It is the issue of water drag on the wings and outer floats. The pontoons sit way too deep in the water and offer too much drag which causes the plane to poorly handle in taxiing maneuvers.
Double delta stack box wing configuration for another prototype design
if you make the drone hull like boat ship hull, then it will float like a boat, ie hollow thicker body wings, same weight.
Already onto it. making a deeper hull and more buoyancy - we also need to get the wing floats out and close to the water and not in the water. They prevent yaw control while on the water and restrict turning as they create a ton of drag.
I think you have a printing addiction hahaha
Why do you think so :)
very cool
Thanks
So you're thinning the epoxy with some alcohol? I guess it's not white spirit but something else like isopropyl alcohol. Also usually it's thinned with like 10% alcohol to keep it strong but you've added like 50%?!
Its to save weight and just provide enough sealing for waterproofing - not full composite structural strength. rene and I try and keep the weight down on all constructions 😉
Awesome
Cheers!
the first fly looked like its a litle bit tail heavy ...
When will this design be available?
As soon as I have ironed out all the CAD details and Rene has finalised all the flight and water tests.
Regarding how she handles in the water, I think better to setup differential thrust and ditch the rudders, servo and save the weight. Also--my intuition was completely wrong about the prop direction!
😆
Its also a factor of the "draft" of the hull. We are sitting way too deep in the water with the design and i have increased the depth of the hull to take us to a higher "draft" in the water. Stay tuned as Rene and I work through solving all these challenges.
Do you have an assembly guide for the JRM-01?
Which model? 30-50 or 70mm EDF?
70 mm edf
The guides are included in the download files.
Maybe some canards.
Uhhh...maybe JRM-01 Scale cockpit for 6.5inch figure and FPV. Canopy buck for at home canopy building. Please!!! Oh n light provisions
lights are coming! - now once Rene and I have completed all the big projects and challenges we will look at the smaller stuff and see if there is a market for it. But I hear you! i would love to detail the interior of our JRM - albeit it would be a very shallow cockpit. Would have to cut your figure from the waist down - the wheel well is so big and the retracted undercarriage will interfere with a full size cockpit...
I think you can pull this off. I already have a designer on standby for the project when I'm ready, but not having a full cockpit is a huge miss on a plane of this caliber. Having a cockpit provisioned for digital oled displays on dash with a pilot figure, remove... and then a space to mount a camera and antenna.
@@marcphilippveenendaal4394
Fast forward music lol
'Tweezers'
Yeah, I didnt get to help him with that one 😄 - I was sleeping
Thx!
Sorry Rene' but this is a very unstable design. All the lift is in the back throwing your lift aft of the CG by a lot. As a float plane box wing concept you'll never get off the water like this. Consider adding a EDF and duct intake to the nose pushing air under the front for take off and landing. You could also add a diverter or flap to redirect the air flow over the top of the lower box wing to add more thrust and lift if you like.
Our issue at the moment is the "draft' of the plane in the water. We are sitting too low and the wing pontoons are too deep and causing a lot of water drag. i have remodeled the hull and increased the buoyancy and reduced the height of the wing tip pontoons. This is hopefully going to give us as steeper angle of attack and better wing to water clearance and more of an Ekranoplan "Wing in Ground Effect". More powerful motors and larger props are also underway! stay tuned 😉
@@marcphilippveenendaal4394 Thanks for the reply Marc. Econocraft and the like all use front thrusters to push air under the nose wing to break free of surface tension. I was thinking of something a little more elegant. In my mind i was envisioning something more like the the nose of a manta ray only a closed duct without the split with single or dual edf pulling air from the topside under the nose with a flap at the tailing edge of the underside of the nose duct. The flap at first pushes water down while filling the gap with forced air. This aids in the initial plane on top of the water in two ways and adds some thrust vectoring when used in flight. This could also be used to add stability in high alpha. High speed air and slow water are not too different except in drag, so smooth semi deep v fuselage and high drooping wings side and aft with raised smooth v float tips. You shouldn't need to exaggerate it too much as to keep the lowest profile possible while maintaining the overall features. Having thrust under the nose with also aid in cancelling out the down pitch of the top fans in the box wing. This makes the lift more even at low velocities. The over all look will change a bit from box to slight A but should allow for the top fans to produce a good venturi effect. Just some ideas to consider. I also like designing aircraft only not so public.
bitte red deutsch oder nimm englich unterricht
What a lame comment, he is following his passion and you have nothing better to do than criticizing his English in the most rude way possible 😅😂