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That fat rudder trailing shows that this model is designed for constant speed aerobatics, Nice!
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I've made up platform to support the UAT and X45 pump. Getting the tank out of the Wizard is quite a puzzle as support frame is wider than the opening of the fuselage.
I try to think out maintenance and repair of my jets as build them. I hate when changing one servo is a six hour job because everything is buried. The parts of my fuel system are accessible and can be removed easily. https://cimg2.ibsrv.net/gimg/www.rcu...77755be03.jpeg https://cimg3.ibsrv.net/gimg/www.rcu...d29f03d69.jpeg |
I agree, I try to make everything modular, 4 screws and I can lift out my entire fuel system out of my Sebart mini Avanti
https://cimg6.ibsrv.net/gimg/www.rcu...ac868fecba.jpg |
Rich Turn the pump around, Xicoy recommend the nipples be upward! It is to minimize bubbles.
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Place the fuel tank on the CG
Guys.
If possible, install the fuel tank on the CG. It is very important, especially with little jets. If interested I can make pictures of my install. |
Hi,
I would like to see your install. However, the tank is installed the way ZN Line designed. There are no options. I assume JP knows what he was doing when he designed it. |
Originally Posted by jvaliensi
(Post 12676826)
Hi,
I would like to see your install. However, the tank is installed the way ZN Line designed. There are no options. I assume JP knows what he was doing when he designed it. In my Wizard you can clearly see my tank is on the CG and my engine is on the back part of the engine rails. I have flown many EDF jets (airworld cougar, eflite habu, mini avanti) converted to turbine in the past and all had the same issue with commercially available turbine mod kits. Fuel tank in the battery pocket, resulting in noticeable CG shift during flight. https://cimg9.ibsrv.net/gimg/www.rcu...3f3286903.jpeg https://cimg0.ibsrv.net/gimg/www.rcu...095abfb1b.jpeg |
You fuselage formers are different than mine. I'd have to build an entirely new tank mount to push the tank over the spar and rearwards. I'll see how much the CG changes when I get the gear down.
Your tank looks small for a 70N turbine - whats the capacity? I did use a Fuji-type bottle in my latest Avanti build and was able to push it back much further than a CM tank can go. The Avanti tends to be nose heavy so this helped quite a bit. https://cimg2.ibsrv.net/gimg/www.rcu...e78621262.jpeg |
This is during the build in 2017 (before I painted it). My formers seems to be the same as yours? The small former in front (red arrow) I made myself to support the front of the fuel tank. My fuel tank is 1.1 liter and it is more then enough for 6 minutes flights with mixed throttle settings. My Wizard is extreme light, so hardly use full power. Only for big loops and verticals.
https://cimg9.ibsrv.net/gimg/www.rcu...31ea75353.jpeg |
Making progress.
So far, empty weight is 5kg. I think takeoff weight will be under 6.2kg. This is about 1.5kg lighter than my Rebel Hot and it is a similar sized airplane. https://cimg0.ibsrv.net/gimg/www.rcu...b12f53bc8.jpeg https://cimg2.ibsrv.net/gimg/www.rcu...785364e0b.jpeg |
What a great looking model and graphics! Good luck on your maiden flight. Could you post overhead pics of your turbine install?
Bob |
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Your install is clean! Will you safety wire the fittings?
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I redid the fuel valve and finished the electronics install. I ended up with three batteries. I just works out better with the Pioneer.
I had bought the Pioneer w/ the iGyro satellite but couldn't figure out how to make it work so I used the Cortex. My wiring arrangement looses the ability to see the Cortex in Device Explorer but I know the Cortex well and can live without that benefit. Shortly after the photos were taken, I put in the last jumpers, for steering. Even though I've made hundreds of jumpers, I some how shorted out the one between the Cortex and Electron controller. When I powered up, there was sparks and fire. The jumper completely melted and took out another wire. But the Coretx and Electron controller are okay. So, I have to take it apart and replace some wires that got too hot next to the shorted one. https://cimg9.ibsrv.net/gimg/www.rcu...484f66f12.jpeg https://cimg0.ibsrv.net/gimg/www.rcu...06576a85b.jpeg https://cimg1.ibsrv.net/gimg/www.rcu...8f82d3862.jpeg https://cimg2.ibsrv.net/gimg/www.rcu...ba4b31608.jpeg https://cimg4.ibsrv.net/gimg/www.rcu...349e01781.jpeg |
Sorry about the smoke and fire! If I feel dual batteries are needed(rare in a model this size) I use a Jeti DSM 10 to my Rex 12/cortex pro which provides more outputs than Ill ever use and provide full device integration.
Allowing the gyro functions to be tuned through device explorer is just so convenient! It also is lightweight. |
You’re Wizard looks great! 👍
Sorry to hear about the fire. Hopefully the cortex is not damage. If you are a Jeti user, why do you use a Pioneer and not a CB2xx? Seems to me so much more convenient? Why do you use 2x 3100mah for RX? I guess you only have to charge once a season. ;-) I use one LIFe 2S 2100 mah for RX only and one 3S 2100 mah for gear and turbine. |
I think what happen was the steering plug goes in to the last (6) spot of the Cortex Pro. Its possible to miss-plug spots 4, 5 & 6 and get the negative pin on the positive pin. This is because the program jumper pins align with the servo pins. Others have done this. If its going straight to a servo then it is not a disaster. But in my case, it was going to the Electron controller, so it made a dead short.
So, far everything still works. I think all the heat went to the jumper and spared the electronics. I will test everything thoroughly. I lost an airplane because of a CB200. It was my error, but I'm not giving it another chance. I bought the Pioneer with Gyro for the same costs as a Cortex Pro. And I get dual batteries and telemetry. Seemed like a good deal. I cannot figure the Gyro out and I really like Cortex anyways. The Pioneer made the wiring neat and I do get the other advantages noted. The Cortex is a very robust device. I've beat the crap out of them (bent cases and bad crashes) and they keep going. I've had at least six of them and no issues. I know how to set it up and like the way the airplane flies. Two batteries are for the receiver, the third is for the turbine. One RX battery is connected to the landing gear controller. I could have done the whole thing with one battery and a REX12. Thats how I set up my Avanti S. This airplane is so light the extra batteries do not matter. |
Originally Posted by jvaliensi
(Post 12678023)
I think what happen was the steering plug goes in to the last (6) spot of the Cortex Pro. Its possible to miss-plug spots 4, 5 & 6 and get the negative pin on the positive pin. This is because the program jumper pins align with the servo pins. Others have done this. If its going straight to a servo then it is not a disaster. But in my case, it was going to the Electron controller, so it made a dead short.
So, far everything still works. I think all the heat went to the jumper and spared the electronics. I will test everything thoroughly. I lost an airplane because of a CB200. It was my error, but I'm not giving it another chance. I bought the Pioneer with Gyro for the same costs as a Cortex Pro. And I get dual batteries and telemetry. Seemed like a good deal. I cannot figure the Gyro out and I really like Cortex anyways. The Pioneer made the wiring neat and I do get the other advantages noted. The Cortex is a very robust device. I've beat the crap out of them (bent cases and bad crashes) and they keep going. I've had at least six of them and no issues. I know how to set it up and like the way the airplane flies. Two batteries are for the receiver, the third is for the turbine. One RX battery is connected to the landing gear controller. I could have done the whole thing with one battery and a REX12. Thats how I set up my Avanti S. This airplane is so light the extra batteries do not matter. And I would never used a pioneer and loose integration, especially that it wasn’t the CB fault but yours…I used only CB200/220 and 400 not problems what so ever….. |
Thanks for the tips.
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Originally Posted by Dansy
(Post 12678080)
If I was you I would talked to F1Rocket…at Aeropanda….I think you Cortex pro might be toasted, never happen to me but, I did read a warning somewhere about this error and connecting partially into the bind port….he will know if you should be worry or not….
And I would never used a pioneer and loose integration, especially that it wasn’t the CB fault but yours…I used only CB200/220 and 400 not problems what so ever….. |
I would be concerned about the CPro too! Don’t risk loosing your model!
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Are you all suggesting I replace a working $300 part because it may fail? How does that decrease the risks of a catastrophic failure? Shouldn't I replace all the parts in the power path too? So, now it's a $1000 worth of stuff. What do I do with the stuff, post them for sell? Toss in the trash?
Electronic stuff fails without warning. The failure rate is the highest at the beginning of their life. What happens if a brand new servo dies in flight? I've had brand new. very high quality servos die on the bench. I have five flights total with two X45's and two unexplained flame-outs. I wouldn't consider the X45 a reliable power plant based on that. The chances of me loosing the Wizard in the first few flights from non-electronic failure is about 100,000 times higher than the Cortex failing. I'm not also not sure what about my set up is "loose integration". Does that mean using the supplied wire loom that came with the Cortex Pro is less reliable than using a bus connection? I picked the Pioneer for this setup because it made a nice wire management. I spent a lot of time building it and I do not want to tear it all apart and start again. There should be a better way. Just replacing stuff because something might happen seems foolish. There has to be evidence of damage. I do appreciate you all taking the time to offer your advice. If I contact F-1 about it, what's he going to say? If he thinks its okay and it fails, then he's the bad guy. So, he'll tell me to bite the bullet and sell me another. |
Originally Posted by jvaliensi
(Post 12678145)
Are you all suggesting I replace a working $300 part because it may fail? How does that decrease the risks of a catastrophic failure? Shouldn't I replace all the parts in the power path too? So, now it's a $1000 worth of stuff. What do I do with the stuff, post them for sell? Toss in the trash?
Electronic stuff fails without warning. The failure rate is the highest at the beginning of their life. What happens if a brand new servo dies in flight? I've had brand new. very high quality servos die on the bench. I have five flights total with two X45's and two unexplained flame-outs. I wouldn't consider the X45 a reliable power plant based on that. The chances of me loosing the Wizard in the first few flights from non-electronic failure is about 100,000 times higher than the Cortex failing. I'm not also not sure what about my set up is "loose integration". Does that mean using the supplied wire loom that came with the Cortex Pro is less reliable than using a bus connection? I picked the Pioneer for this setup because it made a nice wire management. I spent a lot of time building it and I do not want to tear it all apart and start again. There should be a better way. Just replacing stuff because something might happen seems foolish. There has to be evidence of damage. I do appreciate you all taking the time to offer your advice. If I contact F-1 about it, what's he going to say? If he thinks its okay and it fails, then he's the bad guy. So, he'll tell me to bite the bullet and sell me another. |
I know - its just eff'n crazy either way!
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Cortex Pro update -
I've written the manufacturer, Aeropanda and posted on another forum about my issue. So far no responses. I will take the Cortex Pro out of Wizard and put in a foam EFD to test it. Meanwhile a proven Cortex Pro will go in the Wizard. Thanks for the tips and concerns. |
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