flywaldair (Skynet dev.) Posted December 23, 2019 Posted December 23, 2019 The external tank switches have 3 positions. Override, Norm, Stop. I read the natops and I understand Stop stops the transfer of fuel until the Fuel lo condition is set. However I don't unterstand why there is a Override setting. It seems to do the same as Norm apart from the fact that you can enforce tank pressurisation. In what situation would one set the switch to Override? Skynet: an Integrated Air Defence System for DCS. Download here! The best flying school in Switzerland mfgz.ch :music_whistling::music_whistling::pilotfly: Follow my flying adventures on YouTube:)
bart Posted December 23, 2019 Posted December 23, 2019 When doing air to air refuelling, if you set the switch to the override position that particular ext fuel tank will not be filled during the refuelling process. Isolating the tank/tanks in effect. System :- i7-12700K 3.6 GHz 12 core, ASUS ROG Strix Z690-A Gaming, 64GB Corsair Vengeance RGB Pro 3200MHz, 24GB Asus ROG Strix Geforce RTX 3090, 1x 500GB Samsung 980 PRO M.2, 1x 2TB Samsung 980 PRO M.2, Corsair 1000W RMx Series Modular 80 Plus Gold PSU, Windows 10. VIRPIL VPC WarBRD Base with HOTAS Warthog Stick and Warthog Throttle, VIRPIL ACE Interceptor Pedals, VIRPIL VPC Rotor TCS Plus Base with a Hawk-60 Grip, HP Reverb G2.
flywaldair (Skynet dev.) Posted December 23, 2019 Author Posted December 23, 2019 ok, but the stop position has the same effect. Skynet: an Integrated Air Defence System for DCS. Download here! The best flying school in Switzerland mfgz.ch :music_whistling::music_whistling::pilotfly: Follow my flying adventures on YouTube:)
nickos86 Posted December 23, 2019 Posted December 23, 2019 The external tank switches have 3 positions. Override, Norm, Stop. I read the natops and I understand Stop stops the transfer of fuel until the Fuel lo condition is set. However I don't unterstand why there is a Override setting. It seems to do the same as Norm apart from the fact that you can enforce tank pressurisation. In what situation would one set the switch to Override? A guess - if you fly with one external tank on one wing and a bomb on the other. During the flight you put the wing tank to 'stop' to keep the weight balanced. After dropping the bomb, put the fuel tank to Override so that the fuel will be transferred to the internal tanks drying up the wing tank and retaining balance.
fagulha Posted December 23, 2019 Posted December 23, 2019 ok, but the stop position has the same effect. When in Override it stops filling the ext tanks until the internal tanks are filled then start to fill the ext tanks, with Stop it only fills the internal tanks without transfering fuel to ext tanks when internal tanks are full. Best regards, F. About carrier ops: "The younger pilots are still quite capable of holding their heads forward against the forces. The older ones have been doing this too long and know better; sore necks make for poor sleep.' PC: 14th I7 14700KF 5.6ghz | 64GB RAM DDR5 5200 CL40 XMP | Gigabyte RTX 4080 Super Aero OC 16 GB RAM GDDR6X | Thermalright Notte 360 RGB | PSU Thermaltake Though Power GF A3 Snow 1050W ATX 3.0 PCIE 5.0 / 1 WD SN770 1TB M.2 NVME + 1 SSD M.2 2TB + 2x SSD SATA 500GB + 1 Samsung 990 PRO 4TB M.2 NVME (DCS only) | Valve Index| Andre´s JeatSeat.
RobertFriday Posted December 23, 2019 Posted December 23, 2019 Override is used on the ground to transfer fuel into the main tanks. With weight on wheels the external tanks are unpressurized and do not automatically transfer like in air. Very useful for ground crew to reconfigure the aircraft without de fueling equipment or during extended engine operation for testing systems.
Flamin_Squirrel Posted December 25, 2019 Posted December 25, 2019 Override does NOT prevent filling of external tanks. Don't make stuff up. It's only useful for certain failure modes where you need to force external fuel transfer, e.g. with the probe out.
flywaldair (Skynet dev.) Posted December 26, 2019 Author Posted December 26, 2019 Override does NOT prevent filling of external tanks. Don't make stuff up. It's only useful for certain failure modes where you need to force external fuel transfer, e.g. with the probe out. Ok, that sort of makes the most sense. NATOPS states an emergency procedures in which the switch should be set to override. EXT XFER Indication. Skynet: an Integrated Air Defence System for DCS. Download here! The best flying school in Switzerland mfgz.ch :music_whistling::music_whistling::pilotfly: Follow my flying adventures on YouTube:)
fagulha Posted December 28, 2019 Posted December 28, 2019 Override does NOT prevent filling of external tanks. Don't make stuff up. It's only useful for certain failure modes where you need to force external fuel transfer, e.g. with the probe out. I use it frenquently to fill first the internal tanks with AAR or when i start on ramp with low fuel (for carrier ops for example) and i want to transfer fuel from the external tanks to the internal tanks. Best regards, F. About carrier ops: "The younger pilots are still quite capable of holding their heads forward against the forces. The older ones have been doing this too long and know better; sore necks make for poor sleep.' PC: 14th I7 14700KF 5.6ghz | 64GB RAM DDR5 5200 CL40 XMP | Gigabyte RTX 4080 Super Aero OC 16 GB RAM GDDR6X | Thermalright Notte 360 RGB | PSU Thermaltake Though Power GF A3 Snow 1050W ATX 3.0 PCIE 5.0 / 1 WD SN770 1TB M.2 NVME + 1 SSD M.2 2TB + 2x SSD SATA 500GB + 1 Samsung 990 PRO 4TB M.2 NVME (DCS only) | Valve Index| Andre´s JeatSeat.
Weasel Posted December 28, 2019 Posted December 28, 2019 (edited) The external tank switches have 3 positions. Override, Norm, Stop. I read the natops and I understand Stop stops the transfer of fuel until the Fuel lo condition is set. However I don't unterstand why there is a Override setting. It seems to do the same as Norm apart from the fact that you can enforce tank pressurisation. In what situation would one set the switch to Override? Hello tigair Please also check this thread: https://forums.eagle.ru/showthread.php?t=230053&highlight= Edited December 28, 2019 by Weasel
Flamin_Squirrel Posted December 28, 2019 Posted December 28, 2019 I use it frenquently to fill first the internal tanks with AAR or when i start on ramp with low fuel (for carrier ops for example) and i want to transfer fuel from the external tanks to the internal tanks. Best regards, F. Some info from NATOPS as to why NORM doesn't transfer fuel on the ground: 23. External fuel tank CV operations a. Catapults with partially full external fuel tanks between 100 pounds and 1,900 pounds. b. Landing at CV with greater than 500 pounds in centerline tank. Not that it makes a difference in DCS, but should provide some context as to why it doesn't transfer on the ground in NORM.
pete_auau Posted June 16, 2020 Posted June 16, 2020 Override is used on the ground to transfer fuel into the main tanks. With weight on wheels the external tanks are unpressurized and do not automatically transfer like in air. Very useful for ground crew to reconfigure the aircraft without de fueling equipment or during extended engine operation for testing systems. On the grnd if ground crew dont want to fill ext tanks they press thinks its called the fuel pressure valve, any way it pops up and prevent the tank from filling, if you want the tank to fill you push it back in
mongo52 Posted June 16, 2020 Posted June 16, 2020 Pre check valve. Used when fueling to check that the system won't over fill. And yes it gets left out if we only want to fill internals
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