WildBillKelsoe Posted February 21, 2013 Posted February 21, 2013 http://www.mediafire.com/?mzw7582512p7ep6 could someone tell me what went wrong? coolant was over the top 150 degrees and the engine just quit on me mid-flight. Could you watch the track and give me idea what went wrong/ what I do wrong? thanks 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.
ED Team Yo-Yo Posted February 21, 2013 ED Team Posted February 21, 2013 It would be easier to analize if you just describe the situation just in 5 minutes before the failure. :) Ніщо так сильно не ранить мозок, як уламки скла від розбитих рожевих окулярів There is nothing so hurtful for the brain as splinters of broken rose-coloured spectacles. Ничто так сильно не ранит мозг, как осколки стекла от разбитых розовых очков (С) Me
159th_Viper Posted February 21, 2013 Posted February 21, 2013 and the engine just quit on me mid-flight...... Did you run out of fuel? Novice or Veteran looking for an alternative MP career? Click me to commence your Journey of Pillage and Plunder! [sIGPIC][/sIGPIC] '....And when I get to Heaven, to St Peter I will tell.... One more Soldier reporting Sir, I've served my time in Hell......'
WildBillKelsoe Posted February 21, 2013 Author Posted February 21, 2013 sorry I posted a long track. Mission 25: Putting it all together. I start the ship @ 1300 rpm, idle @ 1000, and while taxiing on runway, my coolant is 150°C... I manipulate the coolant thingies, setting both to full forward, and I open both scoops. Nothing. What is the procedure to lower coolant temperature? Then I get very high temperature with oil, then oil pressure drops to zero, meaning my engine is getting starved of oil. Any ideas? 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.
ED Team Yo-Yo Posted February 21, 2013 ED Team Posted February 21, 2013 sorry I posted a long track. Mission 25: Putting it all together. I start the ship @ 1300 rpm, idle @ 1000, and while taxiing on runway, my coolant is 150°C... I manipulate the coolant thingies, setting both to full forward, and I open both scoops. Nothing. What is the procedure to lower coolant temperature? Then I get very high temperature with oil, then oil pressure drops to zero, meaning my engine is getting starved of oil. Any ideas? Crosswind. As it is about 10 m/s it blow away prop slipstream making the airflow insufficient. Moreover, we have found a bug with tailwind acting to the radiator (fixed now) so pure tail wind gives erratic cooling conditions. THe only way you can escape this problem (even after you have this bug fixed) - you must taxi to start just after the engine is started. 1000-1100 rpm is enough for taxiing and good for warming. Ніщо так сильно не ранить мозок, як уламки скла від розбитих рожевих окулярів There is nothing so hurtful for the brain as splinters of broken rose-coloured spectacles. Ничто так сильно не ранит мозг, как осколки стекла от разбитых розовых очков (С) Me
Merlin-27 Posted February 21, 2013 Posted February 21, 2013 Coolant overheating was the source of much frustration with me in the not-so-distant past. I'm getting better. That cross wind info is good to know. One other thing to note... if you want to manually open the coolant outlet door, it takes approx. 20 seconds to fully open. Don't click it once and expect it to open up. [sIGPIC][/sIGPIC] [Dogs of War] WWII COMBAT SERVER | P-51D - FW190-D9 - Me109-K4 Visit Our Website & Forum to Get More Info & Team Speak Access
msalama Posted February 21, 2013 Posted February 21, 2013 1000-1100 rpm is enough for taxiing and good for warming. Say it's winter, -10C° or thereabouts. Is it _really_ OK to taxi on an ice-cold engine straight away??? The DCS Mi-8MTV2. The best aviational BBW experience you could ever dream of.
sobek Posted February 21, 2013 Posted February 21, 2013 (edited) Say it's winter, -10C° or thereabouts. Is it _really_ OK to taxi on an ice-cold engine straight away??? If you submit to the RPM restrictions, why not? As was said, the engine produces enough thrust at 1000RPM for taxiing. As long as your oil temp is >15° and coolant temp >60° when you cross the gate, there should be nothing to worry about. Edited February 21, 2013 by sobek Good, fast, cheap. Choose any two. Come let's eat grandpa! Use punctuation, save lives!
msalama Posted February 21, 2013 Posted February 21, 2013 Right, says on the cockpit placard that minimum oil and coolant temps for takeoff are 15° and 60° respectively. Means you wait for a tad checking everything else and then taxi to active while the engine's still kind of cool and only then do the runup just before taking off. Gotta keep that in mind... The DCS Mi-8MTV2. The best aviational BBW experience you could ever dream of.
Anatoli-Kagari9 Posted February 21, 2013 Posted February 21, 2013 Crosswind. As it is about 10 m/s it blow away prop slipstream making the airflow insufficient. Moreover, we have found a bug with tailwind acting to the radiator (fixed now) so pure tail wind gives erratic cooling conditions. THe only way you can escape this problem (even after you have this bug fixed) - you must taxi to start just after the engine is started. 1000-1100 rpm is enough for taxiing and good for warming. Ah! I believe this is the source of the "Explosion on startup bug..." correct? Flight Simulation is the Virtual Materialization of a Dream...
ED Team Yo-Yo Posted February 21, 2013 ED Team Posted February 21, 2013 Ah! I believe this is the source of the "Explosion on startup bug..." correct? No, it's a kind of disturbed solution of airscrew equations (for my mind, as we can no catch it to explore) at the very low rpm and under certain other circumstances (wind, airplane speed, etc, that gives certain prop blade AOA). The solution "shots" an erratic value. We had this problem before and we solved it but maybe not absolutely complete. Ніщо так сильно не ранить мозок, як уламки скла від розбитих рожевих окулярів There is nothing so hurtful for the brain as splinters of broken rose-coloured spectacles. Ничто так сильно не ранит мозг, как осколки стекла от разбитых розовых очков (С) Me
WildBillKelsoe Posted February 21, 2013 Author Posted February 21, 2013 wait.. you guys did further corrections to P-51 in 1.2.3? If so, you are AWESOME!!!! However, crosswind according to tower is 7 m/s HDG 251 IIRC. This happened twice inside a bunker and outside spot 1. Thanks YoYo. Merlin, I concur 20 seconds to fully deploy scoops. You'd be surprised I primed for 30 seconds, diluted for 30 seconds and idled again for 15 mins. Nothing. Maybe I should have crosswind blowing to my face? Open both scoops? msalama, I do not immediately taxi. I stay put till all green, then roll. Only I decided to takeoff so altitude temperature would do its thing and cool my coolant. Should I retry with altitude? I warm up @ 1300 rpm immediately following engine takeover, reducing throttle gradually on way. then taxi @ 800-1000 rpm. Idle runway 1000 rpm, run-up @ 2300 rpm to check mags, blower hi, and rpm. Takeoff around 40-45 mp @ full rpm. 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.
msalama Posted February 21, 2013 Posted February 21, 2013 I stay put till all green, then roll. Yeah, used to do that as well, but didn't our venerable resident gurus just tell us greenhorns not to? And now that I think of it, I actually remember reading somewhere that taxiing soonish after startup was actually a SOP with many types, because they tended to overheat so rapidly... Well well, you live and learn :book: The DCS Mi-8MTV2. The best aviational BBW experience you could ever dream of.
WildBillKelsoe Posted February 21, 2013 Author Posted February 21, 2013 If that is the case, I have to change my SOP then :thumbup: 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.
WildBillKelsoe Posted February 22, 2013 Author Posted February 22, 2013 OK, ladies and gents... here is the fix proposed by two fine Gentlemen, callsign Merlin and _RAAF Sniper: Before starting, once battary aziz (battery) and generator on, move all levers forward, open both scoops, and immediately startup and taxi and takeoff. Wind is @ 249 at 7 m/s and should be blowing from behind you once on runway with takeoff direction. All green now. sigh of relief. Thanks for the help. Now, to kick the 2 ships teasing my 5 K orbiting grandpa... 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.
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