Hello guys so a couple of days ago i posted a topic about my climbing and you guys gave a alot of suggestions and i try to follow them but there still a problem i just keep stalling i try climbing at 2000vs but i still stall when i start my climb i use 250kts then up to 82 mach on my last flight on a A380 and stall what em i doing wrong?
.82 may be a bit slow for the A380, as it tends to cruise at Mach 0.84-0.86. I’ve made a chart outlining climb profiles for commercial jet aircraft if you’d like me to send it over to you.
The only concern I can think of is trim, but that may’ve been covered in your topic.
what was your trim?
yes it would be much appreciated
I use 7 of trim
7%? Or 70%
7% of trim
and btw i was going from ksfo to Sydney full fuel
That is not enough. At least 70% - 100%. The A380 is out of shape with it physics.
Very heavy. Check your weight, don’t know what your winds were but 0.82, a 7% trim, full fuel and maybe a headwind causes the aircraft to stall
Here’s a website for aircraft performance scroll down and there will be a box with speeds and V/S. You can also replace the A388 with any airplane ICAO code and it will appear such as A359 for A350-900 and the B744 for B747-400. Hope this helps in the future!
You’re also climbing at 2000vs in a heavy load A380. At lower altitudes that may not be a problem, but aircraft will struggle to climb that quickly at higher altitudes. With larger aircraft, they tend to step climb (i.e climb to a lower altitude, burn fuel and climb again), it might be a good idea to slow your ascent once you pass, say, 20,000ft, or maybe even lower depending on how heavy you are.
This quality brand new topic might help also ☺️
The a380 also isn’t up to date at all so it’s physics probably aren’t great, I never fly it.
Dont go over FL330/340 initially when over 70% load. After that, only climb when N1 is below 90%. If you find N1 getting over 95% at a certain height; descend, because your plane is struggling to stay at that height and taxing your engines…ie you may be risking a stall at some point.
Also, make it a practice to climb at Vs 1500 or so beyond FL200. Climb slow, watch N1. Dont go too high. And you will be fine in any jet including the A380.
The efficiency of your climb is determined by the load factor or how heavy your airplane is and winds at cruise…
Normall u cruise at lower altitudes for long hauls and climb later on…for short hauls I recommend keeping reserves fuel upto 45-30 mins only…mainly load + wind is what decides your optimum cruise…
Uay use FPL to IF for cruise altitude
Also onece above 280 FL climb slowly 1200-800VS …once you level out u may increase speed…😊😊
Hope it helped
Thx for your help be safe
thx for your help be safe
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