Tailspin45 Posted May 26, 2012 Posted May 26, 2012 When RPM is reduced there is no increase in MP. Couldn't find an indication anywhere here that this is a feature or a bug so I thought I'd report it. Blue Skies & Tailwinds tailspinstales.blogspot.com
WildBillKelsoe Posted May 26, 2012 Posted May 26, 2012 you sure it's a bug? I mean the RPM controls the throttle limit if I play correctly, let alone think, correctly. AWAITING ED NEW DAMAGE MODEL IMPLEMENTATION FOR WW2 BIRDS Fat T is above, thin T is below. Long T is faster, Short T is slower. Open triangle is AWACS, closed triangle is your own sensors. Double dash is friendly, Single dash is enemy. Circle is friendly. Strobe is jammer. Strobe to dash is under 35 km. HDD is 7 times range key. Radar to 160 km, IRST to 10 km. Stay low, but never slow.
Tailspin45 Posted May 26, 2012 Author Posted May 26, 2012 (edited) Not sure I follow what you mean, Wild Bill. Throttle sets manifold pressure and prop sets RPM. (Below certain MP settings RPM follows throttle setting because it's off the governor.) When you pull back the prop it reduces RPM and should increases MP, at least in my experience. That's why departure power reductions are always done throttle first, then prop--so you don't exceed the MP redline. Likewise, power increases lead with RPM and then you set the MP. In this bird, a change in RPM doesn't seem to have any effect on MP. Edited May 27, 2012 by Tailspin45 Blue Skies & Tailwinds tailspinstales.blogspot.com
PeterP Posted May 26, 2012 Posted May 26, 2012 No - no bug. Everything is fine -at least how it is written in the developer notes: A very small bit of it: In practical terms, what this means is that the pilot uses the throttle handle to set his desired manifold pressure and the regulator operates the relay piston to open or close the throttle valve to maintain this setting. Read about the whole RPM/Throttle relationship here: Sticky: DCS Mustang Developer Notes
MTFDarkEagle Posted May 26, 2012 Posted May 26, 2012 No - no bug. Everything is fine -at least how it is written in the developer notes: A very small bit of it: Read about the whole RPM/Throttle relationship here: Sticky: DCS Mustang Developer Notes ^This. If however we're talking about an engine which does not have such a regulator, it becomes a different story. Lukas - "TIN TIN" - 9th Shrek Air Strike Squadron TIN TIN's Cockpit thread
lubey Posted May 27, 2012 Posted May 27, 2012 If anything I've noticed the opposite - reducing the prop RPM reduces the MP, at least at full throttle anyway. Or are we talking about the transient response? SPECS: Intel Core i5 760 @ 3.2 Ghz +turboboost enabled, 12 GB DDR3 1600 @ 1500 Mhz, ATI Radeon 5850, TrackIR 5, X52 Pro and Saitek pedals
effte Posted May 27, 2012 Posted May 27, 2012 lubey, above a certain altitude the MaP will drop with RPM reduction, as the combination of altitude and lower engine (and thereby supercharger) RPM will prevent the supercharger from providing the requested MaP. Cheers, Fred ----- Introduction to UTM/MGRS - Trying to get your head around what trim is, how it works and how to use it? - DCS helos vs the real world.
Tailspin45 Posted May 27, 2012 Author Posted May 27, 2012 I stand corrected, this is modeled accuately. A friend, the owner/pilot of Six Shooter, Chuck Hall, replied to my query on this issue: When you change RPM, you will not notice an appreciable change in MP, that's authentic. Yes, MP is altitude compensating, and it will maintain what you set. ALWAYS reduce MP prior to reducing RPM !!! That goes without question. Blue Skies & Tailwinds tailspinstales.blogspot.com
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