Exercise 3 (Lecture 3) The Project 2.1 Sub Scale Fire Fighting aircraft will be equipped with a landing gear. In the stress report you used an already submitted landing gear load based on a max landing load being a 4G downward acceleration. However, according to CS-VLA, a landing gear has to be tested using a drop test. The Peak Normal accelerations have been recorded and plotted in the graph below: Peak normal acceleration 4 0.1 0.2 0.3 0.4 0.5 0.6 Drop height, metres Aircraft data: MAUM = 24 kg; Wing Area (S) = (calculate: use CAD file) m Question: 1. (5p) Calculate the (1) Level Landing condition limit maximum vertical reaction and (2) Spring Back condition load cases to be proven for the main gear assembly? (So calculate the Forces on the landing gear)! 2. (5p) Compare the results with the project 2.1 Stress Report findings. Is the calculated Loadcase in this exercise more or less demanding? Tip 1: Use CS-VLA.725 and AMC-VLA.479(b) to solve this question. Tip 2: Initial Airworthiness; Determining the Acceptability of New Airborne Systems (2nd edition)-Guy Gratton - gives examples how to solve this problem (however please use the correct SI Units) V Tail Outer Wing Mid Wing Fuselage Nose and tail cone H Tail