truebrit Posted September 25, 2021 Share Posted September 25, 2021 I was watching this video from Reflected Simulations where he says it should always be throttle down then rpm, rpm up then throttle. In this tutorial from Eagle Dynamics he does it the other way. I asked Reflected Simulations in the comments about this, he said "They're doing it incorrectly then. It's always: throttle down, then RPM down // RPM up then throttle up, otherwise you risk over boosting the engine. It's true for all aircraft, not just the Mossie." Who is right, and is the possible damage modelled? Planes: A-10C/II - FC3 - F/A-18C - F-16c - F-5 - F-15E - F-4E Helicopters: UH-1H Huey - KA-50 Black Shark - AH-64D Maps: Sinai - Normandy 2.0 - Channel - Syria - Persian Gulf - South Atlantic Extras: Supercarrier - WWII Asset Pack PC SPECS: CPU, Intel i5 12600k | MOBO, MSI, MAG 760 TOMAHAWK | MEMORY, Corsair 64GB DDR4 | GRAPHICS CARD, RTX 4070 SUPER | PSU, 850W | Flight Stick, Logitech X-56 | Rudder Pedals, Logitech G | O/S, Windows 10, 64bit | Storage Drives, 2GB M.2 | MONITOR, ASUS TUF Gaming 2560X1440 180Hz Link to comment Share on other sites More sharing options...
razo+r Posted September 25, 2021 Share Posted September 25, 2021 Boost down then RPM down RPM up then boost up Not sure about damage. 2 Link to comment Share on other sites More sharing options...
Nealius Posted September 25, 2021 Share Posted September 25, 2021 "Prop on top" is the rule of thumb. When adding power: prop pitch first, then throttle. When reducing power: throttle first, then prop pitch. 2 Link to comment Share on other sites More sharing options...
Lace Posted September 25, 2021 Share Posted September 25, 2021 6 hours ago, Nealius said: "Prop on top" is the rule of thumb. When adding power: prop pitch first, then throttle. When reducing power: throttle first, then prop pitch. This is how I was taught. 2 Laptop Pilot. Alienware X17, i9 11980HK 5.0GHz, 16GB RTX 3080, 64GB DDR4 3200MHz, NVMe SSD. 2x TM Warthog, Hornet grip, Virpil CM2 & TPR pedals, FSSB-R3, Cougar throttle, Viper pit WIP (XBox360 when traveling). Rift S. NTTR, SoH, Syria, Sinai, Channel, South Atlantic, CA, Supercarrier, FC3, A-10CII, F-5, F-14, F-15E, F-16, F/A-18, F-86, Harrier, M2000, F1, Viggen, MiG-21, Yak-52, L-39, MB-339, CE2, Gazelle, Ka-50, Mi-8, Mi-24, Huey, Apache, Spitfire, Mossie. Wishlist: Tornado, Jaguar, Buccaneer, F-117 and F-111. Link to comment Share on other sites More sharing options...
Mud Posted September 25, 2021 Share Posted September 25, 2021 18 hours ago, Nealius said: "Prop on top" is the rule of thumb. When adding power: prop pitch first, then throttle. When reducing power: throttle first, then prop pitch. Indeed. This is also mentionned by Greg in this video. 1 Spoiler W10-x64 | B650E Gigabyte Aorus Master | AMD Ryzen 7 7800X3D | Noctua NH-D15 G.Skill Trident ZS Neo DDR5-6000 64Gb | MSI RTX 3080ti Gaming X Asus Xonar AE | TM Hotas Warthog MFG Crosswind pedals | Valve Index Link to comment Share on other sites More sharing options...
grafspee Posted September 25, 2021 Share Posted September 25, 2021 In planes with automatic boost regulator, pilot can overboost engine. So when pilot pulls rpm down boost regulator will maintain map, and this is dangerous for engine. But this is not alwayes the case. Above critical alt pulling rpm down will result in drop of map. So in some cases pulling rpm w/o touching throttle is safe. 1 System specs: I7 14700KF, Gigabyte Z790 Aorus Elite, 64GB DDR4 3600MHz, Gigabyte RTX 4090,Win 11, 48" OLED LG TV + 42" LG LED monitor Link to comment Share on other sites More sharing options...
Nealius Posted September 25, 2021 Share Posted September 25, 2021 Life grafspee said, above a certain altitude you'll need to push the throttle past the pitch lever to maintain manifold pressure, but in those situations I still follow the "prop on top" rule when making power adjustments just for the sake of muscle memory and keeping the good habit. 1 Link to comment Share on other sites More sharing options...
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