FALCON USER’S GUIDE 1 Applicable for Q≥20 0.9 0.8 0.7 g)0.6 ( n io t0.5 ra le e c c A0.4 0.3 Frequency (Hz) Acceleration (g) 5 0.5 0.2 85 0.5 100 0.6 0.1 0 0 10 20 30 40 50 60 70 80 90 100 Frequency (Hz) Figure 4-4: Maximum lateral equivalent sine environment for Falcon 9 and Falcon Heavy 4.3.3 ACOUSTIC During flight, the payload will be subjected to a varying acoustic environment. Levels are highest near liftoff and during transonic flight, due to aerodynamic excitation. The acoustic environment, defined as the spatial average and derived at a P95/50 level, is shown by both full and third-octave curves. 4.3.3.1 FALCON 9 ACOUSTICS Figure 4-5 and Table 4-3 provide the Falcon 9 third-octave maximum predicted acoustic environment for typical payloads, while Figure 4-6 and Table 4-4 provide the full-octave maximum predicted acoustic environment. Levels are shown for both Cape Canaveral (SLC-40 and LC-39A) and Vandenberg (SLC-4E) launch sites respectively. Predicted acoustic levels for a specific mission will depend on the payload’s size and volume with smaller payloads generally having lower acoustic levels. Margin for qualification testing or for payloads larger than 60% volume fill is not included in the curves below. © Space Exploration Technologies Corp. All rights reserved. 19