# What is the meaning of T/O Thrust => TRQ / N1 in a flight log?

I work at a software company which builds record-keeping software for aviation.

What is the meaning of TRQ / N1 in a flight log, under a T/O Thrust header? I imagine it refers to torque at N1 (but in my limited experience, I have rarely encountered instantaneous torque as a relevant measure in aviation so I'm suspicious).

What is the meaning of TRQ / N1? Is this, like N1, expressed as a percentage?

(Indeed, we have a close relationship with out clients and can ask them, but answers sometimes take time and I prefer to be proactive and know more than the bare minimum.)

• @Federico That in itself is useful information. I assumed these were industry-standard terminology. I edited to add more context if it helps. – msanford Mar 2 '17 at 15:07
• Torque is used extensively as a power setting and limiting indication in turboprop applications. – J Walters Mar 2 '17 at 15:13
• @JonathanWalters Thank you for noting that! – msanford Mar 2 '17 at 15:15