Jugdriver Posted December 30, 2016 Posted December 30, 2016 It seems after yesterdays patch the Auto radiator setting is not working anymore. Both visually and in terms of overheat if left in off (auto) the engine overheats quickly in level flight at higher power settings. Please dont derail the post with saying to reduce the power setting seeing when on (full open) is selected at the same power setting (+12) the temp is well managed. This is easy to see, from the "on" radiator test position at higher boost (+12) and a hot engine (over 90) if the radiator is switch to off/auto the radiator outlet cowlings will shut where they should remain open. JD AKA_MattE
Kurfürst Posted December 30, 2016 Posted December 30, 2016 Check if they open at 105 celsius. Thats the historical control value. http://www.kurfurst.org - The Messerschmitt Bf 109 Performance Resource Site Vezérünk a bátorság, Kísérőnk a szerencse! -Motto of the RHAF 101st 'Puma' Home Air Defense Fighter Regiment The Answer to the Ultimate Question of the K-4, the Universe, and Everything: Powerloading 550 HP / ton, 1593 having been made up to 31th March 1945, 314 K-4s were being operated in frontline service on 31 January 1945.
Schwarzfeld Posted December 30, 2016 Posted December 30, 2016 Concur, repeatable same error here on my 1.5.5 Spitfire.
razo+r Posted December 30, 2016 Posted December 30, 2016 The oil overheats much faster than the engine, keep that in mind. Search in the manual for the engine limitations and operation table
Art-J Posted December 30, 2016 Posted December 30, 2016 Cannot confirm. Did some ground run cycle tests and the auto definitely works, on subsequent warm-ups it opened around 110-115 (manual says should be 115), on cool-downs it closed a little above 100. i7 9700K @ stock speed, single GTX1070, 32 gigs of RAM, TH Warthog, MFG Crosswind, Win10.
Jugdriver Posted December 30, 2016 Author Posted December 30, 2016 (edited) Ok I looked at it a bit more and I think I figured out why my observation was skewed. First off the temps I was quoting were the oil temps which are still effected by the rads, and do overheat faster than the water temp. I think part of my issue with the oil temps rising too fast has to do with the ambient map temperature that I was flying last night is probably higher than the map were I have been doing my performance heat testing, I need to look into that. That said after looking at it again it appears that the auto flaps do not start to open until 110 c water rad temp and are not fully open until 115 c on the water rad, this seems a little high for them to start working and it is adversely effecting the oil temps. Can someone take a look and see if they are getting the same with their auto rads? JD AKA_MattE Edited December 30, 2016 by Jugdriver
Jugdriver Posted December 30, 2016 Author Posted December 30, 2016 (edited) Thanks Art-J seems you get the same radiator opening temps as I do and you are right they are inline with the manual. The oil Rad is in the left wing box, so it is directly effected by the automatic system. It seems that when the outside temperature is higher, the water rad temps can be maintained with the auto radiator cooler setting but the oil temps rise very quickly and cannot be managed well (If at all) with the auto radiator. JD AKA_MattE Edited December 30, 2016 by Jugdriver
Art-J Posted December 30, 2016 Posted December 30, 2016 Temps in Spit generally seem to change in both directions much faster than in other DCS warbirds. No idea how historically accurate it is, though. i7 9700K @ stock speed, single GTX1070, 32 gigs of RAM, TH Warthog, MFG Crosswind, Win10.
Jugdriver Posted December 30, 2016 Author Posted December 30, 2016 I have to say my Thread title is wrong, they are working as the manual states. I am just not sure if how fast the oil temps rises on warmer maps is accurate, I am sure this would have been a significant issue during summer months at low altitude. JD AKA_MattE
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