Sorry to open this after having posted in one of the other threads, but I am having an issue with taxiing after having edited the FDE as posted here in the performance thread.I find that 1% of thrust sends her up to 35Kts in calm air, regardless of whether I use a Saitek throttle quadrant or just the keyboard commands F1 to F4... The throttle quadrant is calibrated and works well with other addons, and reads 0% when at idle via tooltips...If anyone needs more information, please let me know. I would be grateful for any help... The tweaks really improved the flight characteristics, but is there any chance that one or more of them has affected the ground handling?Andrew

I get the same... I think you'll really need to watch the prop pitch, stay as close to beta as you can.

On the ground, prop pitch should be at full fine.Once you get the plane rolling, you can back off the throttle a bit (the 1% thing, I can't speak to...that doesn't sound right to me, but we have different setups, so I can't say), and if your taxi speed gets too high, give it a touch of reverse to slow down. I know of at least one company that expects its King Air pilots to taxi this way, preferring reverse thrust to brake usage, on the grounds that repairing pebble chips in a propeller is less expensive than replacing worn brake pads.

Cheers for the feedback Kurt, as well as Butchm...Props are full fine, lever is fully forward...I move the thrust lever out of the detent to 1% and the accleration is noticeable, with peak ground speed around 30-35Kts depending on winds. I go back into idle throttle and I am quickly back at 0Kts... The braking effect of the prop at idle is large, but much less at only 1% thrust.At the moment I am surging forward to 30/35Kts or stopping... the coasting roll is non-existent... Is that the case in the real world with the C208B? I thought that you would break the ground roll friction with minimal thrust, then back into idle to roll along... if the speed picks up a little too much while rolling in idle, then a bit of beta to slow down... I am using ground idle for the CL as well, not flight idle...I learned this stuff with the Aeroworx B200, I believe that was where I have seen you before Kurt?Andrew

Andrew,Yep, that's where you saw me before.No, this is not how things should be...it certainly isn't how things work for me. How long does it take for you to get to 30/35 kts?I will admit that I use the payware version of FSUIPC, and have my controller set up through the joystick configuration feature there. I can't imagine 1% throttle giving you so much juice, so there's got to be a configuration issue there.

It's been pretty inconsistent for me. I've had very manageable taxi speed and on other flights it has been really fast.I almost hate to say this because it is such a generic response, but did you load the default C172 and then switch planes? I do that now by habit and haven't seen the galloping gazelle taxi behavior lately.Secondly, one thing that causes absolute rocket behavior sometimes is if you put the condition lever too far forward. I've seen this also in the default Caravan and the Aerosoft Twotter. Must be how FSX models turboprops. I creep that thing forward on start to get the engine to catch, and only advance it to full right before take off.In the default Caravan I've had the engine actually overpower the parking brake at idle if I started the engine with the condition lever too far forward.

OK... thanks for the info so far Kurt and KalahariRover... I use FSUIPC as well and have stuff configured through it as well, gives me the best response in general in payware...I always load via a default Cessna, something I learned to do many a year ago and have been doing it that way ever since :)I will try out the condition lever setting, as I currently have it in ground idle... I'll pull it back a lot more...Andrew

Well thank you all for the help...The CL needs to be below ground idle and she'll taxi nice and smoothly... Seems to have too much torque at GI perhaps?Andrew

I am not experiencing this on my system. I've had it installed on both a SP2 Standard and a Acceleration Pack. How many people are experiencing this?

I never experienced such issues. But anyway, I have now tried to tweak that too. Unfortunately there's not much I can do to lower the torque at idle, or it'd screw the flight envelope of the engine. In the new release the torque at low idle will be lower however, while you'll have about 600 tq and 1300 RPM at high idle, ready for takeoff.Cheers

I'm also having a problem with taxing the Caravan. Using the "Num 9" key, I add 1% throttle and it's off to the races. I've tried all combinations of Prop & Condition that I can think of with no luck. I have a registered copy of FSUIPC and can tone it down a bit by adjusting the slope for the throttle calibation but I still can't get it to taxi without having to constantly bump it into and out of idle. Any ideas?Charlie - KSBP

Can you tell us please the values of torque and RPM you see when you are on low idle, and the ones after you put that 1% in ?Thank youFede

The following are the gauge readings you requested (prop & CL levers full forward):0% - Torque=450 Prop RPM=1200 ITT=6.4 RPM %=701% - Torque=600 Prop RPM=1050 ITT=6.4 RPM %=70Charlie - KSBP

These settings show the high idle: are you trying to taxi on high idle? Because if it's so, it's normal for the airplane to accelerate so fast. You must taxi on low idle, your RPM's (both) will be lower, and when you move the throttle you'll see a decrease of prop RPM (you should be at about 900 RPM , and 65% N1, on low idle). Let me know.Cheers

Even if I pull the CL back almost into cutoff (5%) I can't get the idle RPM down to 900. Even at this setting, the plane will accerate when I give it 1% throttle but at a lower rate (approx. 1 KIAS/sec). Here are my numbers with CL at 5%0% Throttle - Torque=300, Prop RPM=950, ITT=6.1, RPM %=621% Throttle - Torque=400, Prop RPM=800, ITT=6.2, RPM %=62Charlie - KSBP