Kingtech presents the all new T1 sports jet
01-05-2017, 07:01 PM
#1128
Here is the latest updates I have. I am very pleased to say the factory delivered 11 planes for us from last week and this week. They are really trying to catch up on the orders without compromising the quality. We really appreciate everyone's patience while the factory gets things sorted out and gets in a rhythm. We also have ElectroDynamics making us a custom length, 20GA heavy duty servo wire harness to include the 1-click EDR connectors at the wings. No more piecing servo leads together as these are perfect lengths with no multiple connections. That is all I have for now. Please remember, anyone that has a paid order and is tired of waiting, let me know and we will refund you same day, But trust me, the T-1 is well worth the wait!!
Happy New Year Everyone!!
Dirk
626-808-6122
[email protected]
01-07-2017, 06:42 AM
#1130
A question for the jet jockeys. So on this jet some are balancing the T-one so if you tilt it back it will stay on its tail. This is I am assuming dry with no fuel. The CG could be measured at 230-250 mm but no one has said what that CG is. My question is being the fuel tank is forward of the CG the jet will be heavier towards the noes. So if you balance at 250mm dry you will be forward of that when flying and you will never fly at the dry weight CG unless you run out of fuel.
When I land after a 6min flight I have a half tank of fuel so I am landing noes heavy if I balance dry at 235mm -240 mm. On all my prop planes, warbirds and 3D the fuel tank is always on the CG as to not affect the CG at any given position of fuel capacity.
On the T-one the tank is always going to be forward of the CG and add weight to the equation.
So I am wondering if any of you guys with the fancy Xicoy balancer have balanced your jet wet and right after you land to get the takeoff CG and the landing CG. I know that you need to be safe and if you run out of fuel and have to do a dead stick landing you want the CG to be manageable to land. Is this the number we are looking for when balancing 230mm to 240mm? And if so with someone like me that always lands at the 6min mark and at best I have a 1/2 to 1/3 of fuel left can I be more aggressive with the CG knowing I could be tail heavy if I run out of fuel (not likely for me, to conservative)?
thanks
TB
When I land after a 6min flight I have a half tank of fuel so I am landing noes heavy if I balance dry at 235mm -240 mm. On all my prop planes, warbirds and 3D the fuel tank is always on the CG as to not affect the CG at any given position of fuel capacity.
On the T-one the tank is always going to be forward of the CG and add weight to the equation.
So I am wondering if any of you guys with the fancy Xicoy balancer have balanced your jet wet and right after you land to get the takeoff CG and the landing CG. I know that you need to be safe and if you run out of fuel and have to do a dead stick landing you want the CG to be manageable to land. Is this the number we are looking for when balancing 230mm to 240mm? And if so with someone like me that always lands at the 6min mark and at best I have a 1/2 to 1/3 of fuel left can I be more aggressive with the CG knowing I could be tail heavy if I run out of fuel (not likely for me, to conservative)?
thanks
TB
01-07-2017, 10:24 AM
#1131
Good timing Tony. I'm just now doing CG and Fuel system checks on my T-One... (I do have the fancy Xicoy CG machine...) I have the stock main fuel tank.
Completely dry, I have the CG at 100mm in front of the main axles (same as 240mm from leading edge). Weight is 28.3 lbs.
With just the Intairco air trap full, the CG is at 101mm in front of the main axles. Air trap is just ahead of main tank.
With the entire fuel system full, the CG is at 130mm in front of the main axles. Weight is 32.8 lbs.
Regards,
...jim
Completely dry, I have the CG at 100mm in front of the main axles (same as 240mm from leading edge). Weight is 28.3 lbs.
With just the Intairco air trap full, the CG is at 101mm in front of the main axles. Air trap is just ahead of main tank.
With the entire fuel system full, the CG is at 130mm in front of the main axles. Weight is 32.8 lbs.
Regards,
...jim
01-07-2017, 11:39 AM
#1132
Good timing Tony. I'm just now doing CG and Fuel system checks on my T-One... (I do have the fancy Xicoy CG machine...) I have the stock main fuel tank.
Completely dry, I have the CG at 100mm in front of the main axles (same as 240mm from leading edge). Weight is 28.3 lbs.
With just the Intairco air trap full, the CG is at 101mm in front of the main axles. Air trap is just ahead of main tank.
With the entire fuel system full, the CG is at 130mm in front of the main axles. Weight is 32.8 lbs.
Regards,
...jim
Completely dry, I have the CG at 100mm in front of the main axles (same as 240mm from leading edge). Weight is 28.3 lbs.
With just the Intairco air trap full, the CG is at 101mm in front of the main axles. Air trap is just ahead of main tank.
With the entire fuel system full, the CG is at 130mm in front of the main axles. Weight is 32.8 lbs.
Regards,
...jim
Also with the the dry CG at 240mm does your jet sit on its tail if you lift the noes?
Thanks
TB
01-07-2017, 01:14 PM
#1134
If you always land with a half full tank (and I mean always) you could balance at 240mm from leading edge with the tank half full. That should give you a take off CG at about 225mm. But, if you go below half a tank, you'll be getting into dangerous tail heavy territory. If you fly out the entire tank, you'll be landing at 255mm.
Like anything, it's pilot preference. I'm sure I'll be playing around with the CG once I start flying it.
...jim
01-09-2017, 06:29 AM
#1142
So I'm still working on a fix for the weak landing gear springs on the mains. Others like i3dm have reported that when they land and taxi in there gear is completely bottomed out. This is my problemb, once they compress they don't rebound unless you lift the wing. Also my gear doors have been hitting the runway with the states drop landings (holding the flair 1 second to long 
)I have contacted Ir Kim and he is sending me 4 replacment springs. He also said he can get me any parts I need, like tires, breaks and so on. It's costly with shipping but NO one els has parts or can get parts for this jet.
I also have a back up set of gear so I can tinker with the mains to find a solution. The issue with getting springs is the ID of the tube that houses the spring is .010 to small to fit stock die springs. This would be the best spring to use as you can get frome 28lb to 58lb compression strength with the die springs.
So I have some ideas and will be working on it once my spare gear is here. All I want is to have my gear support the plane when at rest.
TB
)I have contacted Ir Kim and he is sending me 4 replacment springs. He also said he can get me any parts I need, like tires, breaks and so on. It's costly with shipping but NO one els has parts or can get parts for this jet. I also have a back up set of gear so I can tinker with the mains to find a solution. The issue with getting springs is the ID of the tube that houses the spring is .010 to small to fit stock die springs. This would be the best spring to use as you can get frome 28lb to 58lb compression strength with the die springs.
So I have some ideas and will be working on it once my spare gear is here. All I want is to have my gear support the plane when at rest.
TB
01-09-2017, 06:36 PM
#1146
TB
Last edited by TonyBuilder; 01-09-2017 at 06:44 PM.
01-09-2017, 07:06 PM
#1147
Now the real question is the problem that you have with yours, are the springs up to the task?
I have seen Tony's jet and it flies and lands fantastic but it does squat on the one side, and when taxing out his suspension is fully compressed, perhaps just a bad spring, it does happen sometimes.. I am sure that as any issues arise that T1 will work to help resolve them, they are making a very nice plane,
Last edited by raron455; 01-09-2017 at 07:11 PM.
01-09-2017, 07:15 PM
#1148
Glad to see the electric option from the factory,, they look really good,,, Nothing wrong with a straight strut,, The king of sports jets (BVM ULTRA BANDIT) as well as numerous jets, make use of a straight strut, and its a proven setup,
Now the real question is the problem that you have with yours, are the springs up to the task?
I have seen Tony's jet and it flies and lands fantastic but it does squat on the one side, and when taxing out his suspension is fully compressed, perhaps just a bad spring, it does happen sometimes.. I am sure that as any issues arise that T1 will work to help resolve them, they are making a very nice plane,
Now the real question is the problem that you have with yours, are the springs up to the task?
I have seen Tony's jet and it flies and lands fantastic but it does squat on the one side, and when taxing out his suspension is fully compressed, perhaps just a bad spring, it does happen sometimes.. I am sure that as any issues arise that T1 will work to help resolve them, they are making a very nice plane,
Yes a bad spring...I'm not the only one that has flat gear. Let's see how the replacment springs do that Kim is sending me. Parts should be available on the pacificjets website???
TB
01-10-2017, 07:17 AM
#1149
For everyone that has not started thier builds yet Dirk now offers a pre made wire harness for the T-1. This will make installation go allot faster. Electrodynamics make it.
https://www.pacificrcjet.com/collect...re-harness-kit
https://www.pacificrcjet.com/collect...re-harness-kit
01-10-2017, 09:19 AM
#1150
My Feedback: (28)
For everyone that has not started thier builds yet Dirk now offers a pre made wire harness for the T-1. This will make installation go allot faster. Electrodynamics make it.
https://www.pacificrcjet.com/collect...re-harness-kit
https://www.pacificrcjet.com/collect...re-harness-kit