Speed?

[dresoccer4]

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. 

[Frederf]

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.

[dresoccer4]

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

[speed-of-heat]

Are you sure you are in burner? Check the external view?

[iantron]

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.

[Exorcet]

Afterburner can fail to light. Reduce throttle, then engage AB again.

[=475FG= Dawger]

Fuel flow says he is in blower. I bet the speed brake is out.

[MAXsenna]

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.

[dresoccer4]

well can't check for speed brake now. but i'll try to recreate everything again and see if i can reproduce

[speed-of-heat]

just to add colour to my comment

 

[wiwa23]

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.

[VZ_342]

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.