September 17, 2025Sep 17 Hi, I'm trying to study the Dash 8 systems, but I can't find any online resources that explain the usage criteria for the RDC TOP. I understand it's used in situations with ample margins to preserve the engines, that each press reduces torque by 2%, and it can go up to a maximum of 80%. Are there no reference tables explaining how to know whether and how much to use it? Thanks! Daniele
September 17, 2025Sep 17 You’ll need a lot of data (runway length, winds, weight, pressure, height, temp, contamination) to determine how to set … I’ve never used it myself, so I would experiment and take notes of what works and what doesn’t. I believe the SOP for setting it will vary from company to company. I had some training videos on the Q400 from real world pilots but I can’t remember the name of the folks that produced them (they did a few others also). You might be able to get the suggested value from Aerodata, but I believe you need to be a hired company pilot (I think) to use that software? I believe the 2% decrements are based on the “current value” so 90% to 88.2% (1st press) to 86.5% (2nd press). Extraordinary claims require extraordinary evidence. - Carl Sagan
September 17, 2025Sep 17 2 hours ago, SayAgain said: You’ll need a lot of data (runway length, winds, weight, pressure, height, temp, contamination) to determine how to set … I’ve never used it myself, so I would experiment and take notes of what works and what doesn’t. I believe the SOP for setting it will vary from company to company. I had some training videos on the Q400 from real world pilots but I can’t remember the name of the folks that produced them (they did a few others also). You might be able to get the suggested value from Aerodata, but I believe you need to be a hired company pilot (I think) to use that software? I believe the 2% decrements are based on the “current value” so 90% to 88.2% (1st press) to 86.5% (2nd press). The videos were Airline2Sim by Ben Weston. Ben had a messy domestic time (I feel his pain), and went to work out in the middle east, where I think he met someone else, and last I knew he was in Saudi. Then radio silence. But @Airline2Sim has been dead to the world for a while and I can't access the videos now 😞 Ben, if you're around, hope you're doing OK buddy! Kevin Firth - AMD 9800X3D; Asus Prime X670E; 64Gb Cas30 6000 DDR5; RTX5090; AutoFPS
September 20, 2025Sep 20 I had no idea regarding Ben … really enjoyed their content, very informative. Extraordinary claims require extraordinary evidence. - Carl Sagan
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