2009年4月29日 · It appears to stand for either Turbofan Power Ratio or Turbine Pressure Ratio depending on where it's found. I think it's going to be Turbofan Power Ratio on the 787. From what I've read on the net, it appears to basically display thrust as a percentage of maximum available in each mode ie TO, CLB, GA, and can even be used in reverse.

2022年9月13日 · TPR, N1 and EGT are the Primary Engine Indications. The digital readouts display numerical values and dial/moving pointers indicate relative values. EGT: the EGT indication has a Max Continuous limit represented in the amber band. If the EGT reaches the Max Continuous limit, the digital indication, box pointer and dial all changes to the amber ...

2009年7月15日 · Can someone explain a bit on the TPR thrust unit that the B787 uses? What and how exactly does it measure thrust? To give you an idea of the numbers we are talking about, here is from the FCOM. Is it some kind of value for the amount of AVAILABLE thrust used? Meaning in the example that you have 17,2% of thrust still available.

A turbofan engine, such as the Rolls-Royce Trent 1000 found on the Boeing 787 Dreamliner, has four key stages, colloquially known as "suck, squeeze, bang and blow." The front stage of the …

787的发动机建立在成功的通用电气与劳斯莱斯遄达 (Trent)发动机产品的基础上。 这两款发动机都将取得在“开箱”投入使用时进行双发延程飞行 (ETOPS)认证。 此外，波音的专有技术与计算机流体力学 (CFD)优化了发动机与787机身的整合，将干扰阻力降至最小，让这些技术进步的效益达到最优化。 短舱上的锯齿边大幅降低了后舱的减震舱噪声。 787机翼上的发动机可互换，这样能尽可能减少构型与系统的易变性，实现更轻松、更经济的重新构型、升级以及飞机在不同机队之间过 …

Different from EPR in the sence that the EEC utilises Temperature inputs to calculate power output called TPR. Pressure at inlet to combustion chamber (P30)/Pressure at Engine Inlet (P20) x

2009年7月15日 · Can someone explain a bit on the TPR thrust unit that the B787 uses? What and how exactly does it measure thrust? To give you an idea of the numbers we are talking about, here is from the FCOM. Is it some kind of value for the amount of AVAILABLE thrust used? Meaning in the example that you have 17,2% of thrust still available.

The Trent 1000 powered Boeing 787 Dreamliner is 20% more efficient than the Boeing 767 aircraft it replaces. Three shaft architecture better supports “all electric” aircraft with a bleed-less engine system.

In practice, British Airways designates certain airfields as Main Maintenance Bases. The expressions ’Main Maintenance Base’, ’Main Base’ and ‘Base' have the same meaning within this document. LHR is the Main Maintenance Base for the B787.

Can someone explain a bit on the TPR thrust unit that the B787 uses? What and how exactly does it measure thrust? To give you an idea of the numbers we are talking about, here is from the FCOM.