PPRuNe Forums - View Single Post - Effect of crosswind on fixed wing field performance
Old 30th March 2005 | 20:22
  #4 (permalink)  
'India-Mike
Guest
 
Posts: n/a
Genghis

Majored on the experimental, but tried to model using the equation for 'Sg' in Eshelby's book. X-wind effect modelled purely by using an increased Cl/Cd obtained from 'power-off' glides, with and without sideslip. Grossly overestimates take-off run.

Used parameter estimation to get acceleration parameters for model as well - we get uniform accelerations of the order of 1.4m/s^2 for the Pup. This is needed for Eshelby's model but prediction still poor - overestimate of the order of 40% with or without x-wind, so the model needs to be addressed.

PS emailed Kenji - all is fine now. Sorry for delay. Well done!