Take-off Lift coefficient for the A380 or other very long range airliners?

[aero&astro]

Does anyone know what the take off life coefficient for very-long range airliners might be in general or where i could find this kind of information?

I'm doing some calculations on things like aspect ratio, landing lift coefficient etc for a report on aircraft design. My results are complied from existing sources like Boeing and Airbus data but I can't find anything on the A380/very long range aircraft i.e. aircraft with range of 14,000km and up.

Also so for I'm getting the take-off lift coefficient deceasing with the size of aircraft, so regional jets have higher take off lift coefficients than medium range aircraft which is larger than that of long range aircraft, (need figures for very long range). Is this the correct sort of trend for this parameter? If so why?

 

[Navin A S]

Unfortunately, there is no general answer to your question as the take off life coefficient varies depending on the specific aircraft. The best way to find this information would be to consult the manufacturer's data or the Aircraft Flight Manual (AFM) for the aircraft in question. Additionally, you may be able to find some useful information in reports or studies prepared by aerospace engineering firms. Regarding your other query, yes, the trend of decreasing lift coefficient with increasing size is generally true for most aircraft. This is due to the fact that larger aircraft require more lift for take-off and landing due to their increased weight. Therefore, the wing area and aspect ratio need to be increased to generate the necessary lift. This then results in a decrease in the lift coefficient.