Dances_with_cumulus
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- Apr 4, 2016
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Fellas
I have search the subject related threads on this forum, and think I found them all, but I didn't find discussion that will answer the following questions. Aircraft Spruce sells a tank they call a Skybolt Inverted tank. I have learned it is manufactured by Jarrell Fabricators LLC for Aircraft Spruce. It has a flop tube, and at the top, two bungholes. One is for fuel pump return, and the other is a vent open to atmosphere. This vent does not have a tube that extends to the bottom of the tank. My question is, is this truly an inverted tank that will deliver in sustained inverted flight, or it good for positive Gs only (which could be inverted temporarily). or something in between?? If it is something in between, how many seconds of inverted flight could one expect before the engine starts to fuel starve? It is my understanding that this single vent design is very old, and worked for many years, including on Pitts. Is that a true statement?
Jarrell also manufactures a Skybolt tank for Steen, which has upper and lower tank, baffles, standpipes, and presumably has the upper vent and lower inverted vents that I did find discussed on this forum. I understand that is a desirable tank design, but is it a must? Will the old design work fine?
Many thanks for your kind replies.
I have search the subject related threads on this forum, and think I found them all, but I didn't find discussion that will answer the following questions. Aircraft Spruce sells a tank they call a Skybolt Inverted tank. I have learned it is manufactured by Jarrell Fabricators LLC for Aircraft Spruce. It has a flop tube, and at the top, two bungholes. One is for fuel pump return, and the other is a vent open to atmosphere. This vent does not have a tube that extends to the bottom of the tank. My question is, is this truly an inverted tank that will deliver in sustained inverted flight, or it good for positive Gs only (which could be inverted temporarily). or something in between?? If it is something in between, how many seconds of inverted flight could one expect before the engine starts to fuel starve? It is my understanding that this single vent design is very old, and worked for many years, including on Pitts. Is that a true statement?
Jarrell also manufactures a Skybolt tank for Steen, which has upper and lower tank, baffles, standpipes, and presumably has the upper vent and lower inverted vents that I did find discussed on this forum. I understand that is a desirable tank design, but is it a must? Will the old design work fine?
Many thanks for your kind replies.
