dresoccer4 Posted April 5, 2022 Share Posted April 5, 2022 Hmm I'm flying el tiger at FL250 full afterburner and can't get over mach 1. only loadout a single aim9 on right wing. is this performance correct? shown in screenshot is my max speed I'm getting. Acer Predator Triton 700 || i7-7700HQ || 512GB SSD || 32GB RAM || GTX1080 Max-Q || FFB II and Thrustmaster TWCS Throttle || All DCS Modules Link to comment Share on other sites More sharing options...
Frederf Posted April 5, 2022 Share Posted April 5, 2022 I show with just the tip rails at 13,3 klbs the F-5E-1 with J85-GE-21 on JP-4 fuel can do on standard day about M1.4 at 25 kft pressure altitude. Your speed is about the MIL thrust maximum. Weight and drag can have a significant impact so I dunno. Link to comment Share on other sites More sharing options...
dresoccer4 Posted April 5, 2022 Author Share Posted April 5, 2022 (edited) 13 minutes ago, Frederf said: I show with just the tip rails at 13,3 klbs the F-5E-1 with J85-GE-21 on JP-4 fuel can do on standard day about M1.4 at 25 kft pressure altitude. Your speed is about the MIL thrust maximum. Weight and drag can have a significant impact so I dunno. thanks, yeah i thought she was supposed to be faster. i'm low fuel and only 1 aim but you can see from the screenshot that's all she's got. i held it there for about 30 seconds and she did not increase in speed. i had fuel tanks on earlier but jettisoned them after using them, but it's like it thinks they're still attached Edited April 5, 2022 by dresoccer4 Acer Predator Triton 700 || i7-7700HQ || 512GB SSD || 32GB RAM || GTX1080 Max-Q || FFB II and Thrustmaster TWCS Throttle || All DCS Modules Link to comment Share on other sites More sharing options...
speed-of-heat Posted April 5, 2022 Share Posted April 5, 2022 Are you sure you are in burner? Check the external view? SYSTEM SPECS: Hardware Intel Corei7-12700KF @ 5.1/5.3p & 3.8e GHz, 64Gb RAM, 4090 FE, Dell S2716DG, Virpil T50CM3 Throttle, WinWIng Orion 2 & F-16EX + MFG Crosswinds V2, Varjo Aero SOFTWARE: Microsoft Windows 11, VoiceAttack & VAICOM PRO Link to comment Share on other sites More sharing options...
iantron Posted April 5, 2022 Share Posted April 5, 2022 Maybe check rudder trim since you only have 1 wingtip. That seems likely to be minor though. Generally though dive to get through the transonic region if needed and then try leveling at 25k. Link to comment Share on other sites More sharing options...
Exorcet Posted April 5, 2022 Share Posted April 5, 2022 Afterburner can fail to light. Reduce throttle, then engage AB again. Awaiting: DCS F-15C Win 10 i5-9600KF 4.6 GHz 64 GB RAM RTX2080Ti 11GB -- Win 7 64 i5-6600K 3.6 GHz 32 GB RAM GTX970 4GB -- A-10C, F-5E, Su-27, F-15C, F-14B, F-16C missions in User Files Link to comment Share on other sites More sharing options...
=475FG= Dawger Posted April 5, 2022 Share Posted April 5, 2022 Fuel flow says he is in blower. I bet the speed brake is out. 3 Link to comment Share on other sites More sharing options...
MAXsenna Posted April 6, 2022 Share Posted April 6, 2022 On 4/5/2022 at 5:58 PM, =475FG= Dawger said: Fuel flow says he is in blower. I bet the speed brake is out. When I can't get the speed up in this thing, it's usually due to flaps, (his are up), or the speed brakes. Link to comment Share on other sites More sharing options...
dresoccer4 Posted April 6, 2022 Author Share Posted April 6, 2022 well can't check for speed brake now. but i'll try to recreate everything again and see if i can reproduce Acer Predator Triton 700 || i7-7700HQ || 512GB SSD || 32GB RAM || GTX1080 Max-Q || FFB II and Thrustmaster TWCS Throttle || All DCS Modules Link to comment Share on other sites More sharing options...
speed-of-heat Posted April 6, 2022 Share Posted April 6, 2022 just to add colour to my comment 1 SYSTEM SPECS: Hardware Intel Corei7-12700KF @ 5.1/5.3p & 3.8e GHz, 64Gb RAM, 4090 FE, Dell S2716DG, Virpil T50CM3 Throttle, WinWIng Orion 2 & F-16EX + MFG Crosswinds V2, Varjo Aero SOFTWARE: Microsoft Windows 11, VoiceAttack & VAICOM PRO Link to comment Share on other sites More sharing options...
wiwa23 Posted April 13, 2022 Share Posted April 13, 2022 On 4/5/2022 at 5:58 PM, =475FG= Dawger said: Fuel flow says he is in blower. I bet the speed brake is out. Yes this is a good tip. Remember that the speed brakes are extended when doing a cold start. It is easily forgotten to retract them... And you could be extending them by accident as well of course... With this loadout passing mach 1 (and reaching Mach 1.4)should be no problem in level flight at FL250. 1 Link to comment Share on other sites More sharing options...
VZ_342 Posted May 8, 2022 Share Posted May 8, 2022 I did 1.3 mach after I climbed to 25,000 and dropped the center tank ("instant action", F-5E Free Flight). Could barely hit 1.0 mach before the jettison. Link to comment Share on other sites More sharing options...
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