The XB-70 had a large number of fuel transfer pumps (something like 25) to transfer fuel from the 10 other tanks into the sump tank, and then three fuel "boost" pumps to pump it from that to the engines. These were hydraulically driven pumps. I.e. it was the hydraulic pressure in the corresponding hydraulic system that causescaused such a fuel pump to pump fueldo its work. How common was that back in the days? Do such pumps exist on any current aircraft?
The XB-70 had a large number of fuel transfer pumps (something like 25) to transfer fuel from the 10 other tanks into the sump tank, and then three fuel "boost" pumps to pump it from that to the engines. These were hydraulically driven pumps. I.e. it was the hydraulic pressure in the corresponding hydraulic system that causes a fuel pump to pump fuel. How common was that back in the days? Do such pumps exist on any current aircraft?
The XB-70 had a large number of fuel transfer pumps (something like 25) to transfer fuel from the 10 other tanks into the sump tank, and then three fuel "boost" pumps to pump it from that to the engines. These were hydraulically driven pumps. I.e. it was the hydraulic pressure in the corresponding hydraulic system that caused such a fuel pump to do its work. How common was that back in the days? Do such pumps exist on any current aircraft?
The XB-70 had a large number of fuel transfer pumps (something like 25) to transfer fuel from the 10 other tanks into the sump tank, and then three fuel "boost" pumps to pump it from that to the engines. These were hydraulichydraulically driven pumps. I.e. it was the hydraulic pressure in the corresponding hydraulic system that causes a fuel pump to pump fuel. How common was that back in the days? Do such pumps exist on any current aircraft?
The XB-70 had a large number of fuel transfer pumps (something like 25) to transfer fuel from the 10 other tanks into the sump tank, and then three fuel "boost" pumps to pump it from that to the engines. These were hydraulic pumps. How common was that back in the days? Do such pumps exist on any current aircraft?
The XB-70 had a large number of fuel transfer pumps (something like 25) to transfer fuel from the 10 other tanks into the sump tank, and then three fuel "boost" pumps to pump it from that to the engines. These were hydraulically driven pumps. I.e. it was the hydraulic pressure in the corresponding hydraulic system that causes a fuel pump to pump fuel. How common was that back in the days? Do such pumps exist on any current aircraft?
