Global Jet Club F-86F
#6

Join Date: Mar 2009
Location: willow springs , IL
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I think another vent would just cause a nasty leak in certain attitudes, flying or handling, unless you tee them together. The vents would certainly need to be teed together if you want to use a taxi tank........I don't think a second vent is needed. fuel being drawn out will draw air in.
#9

My Feedback: (8)

OK. Of course the vents would be "T"d together. Look at that tank again and consider this....when fueling and the level reaches the concave portion of the tank, the side with the vent will continue to fill while the side without a vent will not. Unless of course you want to live with having to tilt the plane fairly steeply and shake it like crazy to get fuel in there every time you refuel. BVM F-86 tanks are similar in shape and have vents on both sides. Those guys knew a few things.
Anyway, it's up to Tom to decide if he needs it or not.
Anyway, it's up to Tom to decide if he needs it or not.
Last edited by Steve Collins; 02-22-2023 at 05:41 AM.
#10

My Feedback: (1)

OK. Of course the vents would be "T"d together. Look at that tank again and consider this....when fueling and the level reaches the concave portion of the tank, the side with the vent will continue to fill while the side without a vent will not. Unless of course you want to live with having to tilt the plane fairly steeply and shake it like crazy to get fuel in there every time you refuel. BVM F-86 tanks are similar in shape and have vents on both sides. Those guys knew a few things.
Anyway, it's up to Tom to decide if he needs it or not.
Anyway, it's up to Tom to decide if he needs it or not.
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grbaker (02-22-2023)
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camss69 (03-10-2023)
#13



This is my initial idea for electronic stuff.. The CB220 will power the CB100 which acts as an expander. I need 18 servo ports. The gear and doors will be sequenced by my DS16. If you haven't tried an AR Q-Switch you should. I can control the power to the radios, gear, brakes and lights through the R3RSW in the Q Switch. I tried it on my GJC F15 and it works great. As for the vent or not to vent, I will use a 2nd vent if I have a spare laying around, if not the fuel loss is minimal for my Cheeta.

Last edited by tp777fo; 02-22-2023 at 06:59 AM.
#14


Now for the business end. I hear the jet is nose heavy so I will put my Power Pack and UAT on the fuse sides. I need to leave the fuel tank sides clear to be able to remove the tank when necessary. If I have to, I can build a plate for the top of the tank for the PP and UAT.
Last edited by tp777fo; 02-22-2023 at 08:58 AM.
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Viper1GJ (02-25-2023)
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Viper1GJ (02-25-2023)
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tp777fo (02-25-2023)
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tp777fo (02-26-2023)
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tp777fo (02-26-2023)
#22

Got the motor mount finished today and motor and pipe mounted. Spent the rest of the day updating firmware on TX, RXs (the new Rex7 A40 with dipole antennas), CB220, CB100 and Cortex Pro. Made leads for Rx 1 & Rx 2 and short leads for CB/Cortex link using PowerBox heavy duty wire. Tomorrow I will finish a connector for nose gear light and by then my servos should be here. Lots of progress expected this week.
#23

My Feedback: (13)

This will not be nose heavy. I have 2x2600 mah receiver packs 2x2400 mah and a 3 cell 2500 mah LiFe ECU pack in the nose, plus all of my radio and turbine equipment on the front plate, the turbine pushed all the forward and a full UAT and it will still require 1 and 1/2 pounds in the nose to balance.
Gary
Gary
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tp777fo (02-27-2023)
#25


I also have a 5000 3 cell and 3 5000 2 cell in the battery trays and everything as far forward as possible and I am balanced OK Garry where did yu balance yours I am balanced right at the gear openeing on the fusalage which is about 420 mm back from LE
Ed



Ed



Last edited by emart; 02-27-2023 at 06:50 AM. Reason: attaching pics