Schlomo1933 Posted November 27, 2019 Posted November 27, 2019 At flying over mach 1 , if you put the throttle to iddle the engines go to 80% thrust. Putting thrust to round About 10 % than the engine works as normal.
Hummingbird Posted November 27, 2019 Posted November 27, 2019 Yup, noticed the same. Has been like this for a while. Just like you say it's only at 0% throttle though, add 10% and the engines throttles down as normal. Go back to 0% and engine rpm suddenly shoots back up to 80%.
fat creason Posted November 27, 2019 Posted November 27, 2019 This may be the idle lockup protection on the engine when the CADC detects mach numbers exceeding 1.1. This feature was added about a month ago but I will try to reproduce. Systems Engineer & FM Modeler Heatblur Simulations
fat creason Posted November 27, 2019 Posted November 27, 2019 Yup, noticed the same. Has been like this for a while. Just like you say it's only at 0% throttle though, add 10% and the engines throttles down as normal. Go back to 0% and engine rpm suddenly shoots back up to 80%. Nevermind, that sounds like a bug. Probably somehow related. Systems Engineer & FM Modeler Heatblur Simulations
Hummingbird Posted November 27, 2019 Posted November 27, 2019 Thanks for the quick response creason, you guys really are the role model when it comes to responding to community bug reports & concerns.
Schlomo1933 Posted December 19, 2019 Author Posted December 19, 2019 At flying over mach 1 , if you put the throttle to iddle the engines go to 80% thrust. the Workaround with Putting throttle to round About 10 % works not more. Now the engine stays at 80% till the Speed falls under M1.1 . then the engines work normal. (over M1.1 i can see the throttles are moving when i move my throttle. but engine stays at 80% ore more)
sLYFa Posted December 20, 2019 Posted December 20, 2019 the Workaround with Putting throttle to round About 10 % works not more. That wasn't a workaround but a bug. Engine RPM should not fall below 80% at speeds above M1.1 and engines in PRI. This ensures engine stability at supersonic speeds. i5-8600k @4.9Ghz, 2080ti , 32GB@2666Mhz, 512GB SSD
Schlomo1933 Posted December 20, 2019 Author Posted December 20, 2019 Ok , thank you for clarivication. But how is it now possible to "brake" in a short time above M1.1 ?
uri_ba Posted December 20, 2019 Posted December 20, 2019 Speed breaks and put on some AOA. This is a feature of all F100 engines. It's the same in the f15 and F16. Furthermore, it was a rule on many older jets, you shouldn't go lower then MIL when supersonic. Creator of Hound ELINT script My pit building blog Few DIY projects on Github: DIY Cougar throttle Standalone USB controller | DIY FCC3 Standalone USB Controller
lunaticfringe Posted December 22, 2019 Posted December 22, 2019 Speedbrakes don't deploy at all above 430 knots. Beyond that, yes- you're going to have to grunt it out by loading the airplane up.
Schlomo1933 Posted December 22, 2019 Author Posted December 22, 2019 Speedbrakes don't deploy at all above 430 knots. Beyond that, yes- you're going to have to grunt it out by loading the airplane up. Thank you. But it feels somehow strange to do it this way.
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