Emirates380 Posted November 30, 2013 Report Posted November 30, 2013 Hello, First of all, I'd like to say that you guys have done an amazing job with this plane! My problem is, whenever I'm on my takeoff roll, I set the CTOT, push the power past 70% and the CTOT takes over. No problems, until half way through the roll, the power starts to decrease on its own, without me doing anything. It keeps decreasing slowly until it hits about 40% torque. I'm still able to get the plane off the runway, but the rate of climb is only +500 fpm, and the takeoff roll ends up being way longer than it should be. Is there something important I'm forgetting to do? Thanks
JGregory Posted December 1, 2013 Report Posted December 1, 2013 Hello, First of all, I'd like to say that you guys have done an amazing job with this plane! My problem is, whenever I'm on my takeoff roll, I set the CTOT, push the power past 70% and the CTOT takes over. No problems, until half way through the roll, the power starts to decrease on its own, without me doing anything. It keeps decreasing slowly until it hits about 40% torque. I'm still able to get the plane off the runway, but the rate of climb is only +500 fpm, and the takeoff roll ends up being way longer than it should be. Is there something important I'm forgetting to do? ThanksThere are many things that need to be done right to fly the Saab properly. Can you tell us what position the condition levers where in when you had this problem?
Emirates380 Posted December 1, 2013 Author Report Posted December 1, 2013 There are many things that need to be done right to fly the Saab properly. Can you tell us what position the condition levers where in when you had this problem?I had the condition levers at MAX.
JGregory Posted December 1, 2013 Report Posted December 1, 2013 (edited) The only other possibility I can think of is that you have set the CTOT too high and the engines are overheating. This would result in an automatic reduction in torque until the condition is resolved. If that isn't it, you will need to give us ALL the specific steps you are using for startup, etc. Since no one else is reporting this problem, it may simply be something you're doing wrong or a step that's missing in your procedures. Edited December 1, 2013 by JGregory
iGoApp Posted December 1, 2013 Report Posted December 1, 2013 I set CTOT at 100-105. If I set it higher -- engine overheating. Try to set it at 100. Should be fine for the engine and enough for the climb...
Emirates380 Posted December 1, 2013 Author Report Posted December 1, 2013 I set CTOT at 100-105. If I set it higher -- engine overheating. Try to set it at 100. Should be fine for the engine and enough for the climb... The only other possibility I can think of is that you have set the CTOT too high and the engines are overheating. This would result in an automatic reduction in torque until the condition is resolved. If that isn't it, you will need to give us ALL the specific steps you are using for startup, etc. Since no one else is reporting this problem, it may simply be something you're doing wrong or a step that's missing in your procedures.Thanks guys. I'll try taking off with the CTOT at 100 later and see how it goes.
Emirates380 Posted December 2, 2013 Author Report Posted December 2, 2013 Well I found the problem... I didn't actually have the condition levers at MAX, they were too high. The CTOT wasn't the problem, I just had the condition levers in the wrong position...
Goran_M Posted December 2, 2013 Report Posted December 2, 2013 That was my next suggestion. Glad you got it sorted.
Vinny003 Posted December 2, 2013 Report Posted December 2, 2013 Hi, guys!I read the manuals, I still don't understand, please tell me the proper procedure from cold & dark to take off, what is the best rate of climb for getting to the altitude of 30,000 feet in the shortest time, how many nautical miles from the destination airport to start the descent, and what is the best rate of descent from the altitude of 30,000 feet to the destination airport? Thanks! Cheers, Vincent
Vinny003 Posted December 2, 2013 Report Posted December 2, 2013 Hi, guys!Anyone there? Thanks! Cheers, Vincent
Goran_M Posted December 2, 2013 Report Posted December 2, 2013 Not really sure where you could be going wrong. We've had many people follow the included tutorial with no issues and many successful takeoffs and landings. Please read through the tutorial and follow it precisely, step by step.
Cameron Posted December 3, 2013 Report Posted December 3, 2013 Hi, guys!Anyone there? Thanks! Cheers, VincentThe service ceiling for this aircraft is 25,000ft.
Vinny003 Posted December 3, 2013 Report Posted December 3, 2013 Hi, Cameron!The service ceiling for this aircraft is actually 31,000 feet. As the Saab 340A burns off fuel, the Saab 340A gets lighter so it can step climb higher than 31,000 feet. I'm now at 35,500 feet. Cheers, Vincent
Cameron Posted December 3, 2013 Report Posted December 3, 2013 Hi, Cameron!The service ceiling for this aircraft is actually 31,000 feet. As the Saab 340A burns off fuel, the Saab 340A gets lighter so it can step climb higher than 31,000 feet. I'm now at 35,500 feet. Cheers, VincentService ceiling vs. step climbing...you will not find these aircraft ever flying at these altitudes.
JGregory Posted December 3, 2013 Report Posted December 3, 2013 Hi, Cameron!The service ceiling for this aircraft is actually 31,000 feet. As the Saab 340A burns off fuel, the Saab 340A gets lighter so it can step climb higher than 31,000 feet. I'm now at 35,500 feet.Cheers,VincentVinny, You're wrong. The TCDS indicates the Maximum Operating Altitude for the Saab to be 25,000 ft.
Vinny003 Posted December 3, 2013 Report Posted December 3, 2013 Hi, JGgregory!It sounds like the Saab 340A got a bug regarding how high it can go. What is the cruising altitude of the Saab 340A since it's service ceiling is 25,000 feet? Thanks! Cheers, Vincent
sqrt(-1) Posted December 3, 2013 Report Posted December 3, 2013 (edited) 25,000 feet (from page 27 of the Flight Manual) Edited December 3, 2013 by SqrtOfNegOne
JGregory Posted December 3, 2013 Report Posted December 3, 2013 (edited) or 20,000 ft... or 15,000 ft... or 10,000 ft.... or whatever fits the flight mission. There is NO bug. The max operating altitude is 25,000 ft. It doesn't mean the plane can't go higher... it means you shouldn't. Edited December 3, 2013 by JGregory
Vinny003 Posted December 3, 2013 Report Posted December 3, 2013 Hi, JGregory!Got it! That makes sense! Thanks! I can go as high as I want in the Saab 340A for x-plane but can't go as high as I want in the real Saab 340A. Cheers, Vincent
JGregory Posted December 3, 2013 Report Posted December 3, 2013 Vinny, You're missing the point entirely. ALL aircraft have a maximum operating altitude. Most, if not all, aircraft are capable of flying higher (yes, in real life too!) but are no certified to do so. If you want to "simulate" real world operations in XP you SHOULDN'T fly higher than the maximum operating altitude.
Vinny003 Posted December 3, 2013 Report Posted December 3, 2013 (edited) Hi, JGregory!That makes sense! Thanks! In x-plane, how high I fly depends on how far I fly like when I fly 1,500-2,000 nautical miles, I usually fly at around 32,500 feet and 40,000 feet when the airplane burns off most of the fuel even though the Saab 340A is certified to go up 25,000 feet. Cheers, Vincent Edited December 3, 2013 by Vinny003
JGregory Posted December 3, 2013 Report Posted December 3, 2013 Vinny, Of course you can do as you wish. I was just pointing out that what you are doing is beyond the "certified" altitude and "unrealistic".
canox Posted January 6, 2014 Report Posted January 6, 2014 Hey uhh I was hoping I could get some help with climbing in this wonderful aircraft.. Everything is good on Takeoff, CTOT engages.. but I dont understand what throttle % I should use for climbing. The Flight Tutorial manual says not to advance the throttles after turning the CTOT off. So my torque goes down to about 65 as it should.. engage AP and climb mode then do the climb checklist. Heres where Im having trouble... it seems to be climbing verrrry slowly. Max 500fpm... I could hardly get to 10 000? I didnt touch the throttles after the CTOT took over.. and my condition levers are left at MAX.Do my throttles really need to be so low for the climb? Please tell me where I have gone wrong lol.
Cameron Posted January 6, 2014 Report Posted January 6, 2014 Heres where Im having trouble... it seems to be climbing verrrry slowly. Max 500fpm... I could hardly get to 10 000? I didnt touch the throttles after the CTOT took over.. and my condition levers are left at MAX.Do my throttles really need to be so low for the climb? Please tell me where I have gone wrong lol. CTOT is not a system to be used during the climb phase; only on takeoff.
canox Posted January 6, 2014 Report Posted January 6, 2014 CTOT is not a system to be used during the climb phase; only on takeoff. I understand this.. so when I disengage CTOT after takeoff.. my torque goes back to down to where it was when CTOT took over, at about 65.The manual says not to advance the throttles from this position but its climbing very slowly. Maybe Im not doing the climb settings properly? Start with 180 H.. then 160 M?
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