Bugs in noise_landing_gear?!

[ge98fiy]

1. Comparing the equation for G2 for n_wheels==1 or n_wheels==2 in noise_landing_gear with the equation from the original source, I fell like the parenthesis are not correct. Instead of:

G2 = (13+np.log10(2.0*(frequencyD/(velocity_fts(1-Mnp.math.cos(theta)))*2.0))
(30+(frequencyD/(velocity_fts*(1-Mnp.cos(theta))))8)-1(0.34H/D))
(np.math.sin(phi))*2
I think it should read:
G2 = 13+np.log10(2.0(frequencyD/(velocity_fts(1-Mnp.math.cos(theta)))*2.0)
(30+(frequencyD/(velocity_fts*(1-Mnp.cos(theta))))8)-1(0.34H/D))
(np.math.sin(phi))**2

2. Similarly, for G1 for n_wheels = 4, instead of:
   G1 = 12+np.log10(frequencyD/(velocity_fts(1-Mnp.cos(theta))))*2
   (0.4+(frequencyD/(velocity_fts(1-Mnp.cos(theta))))2)(-1.6)
   I think it should read:
   G1 = 12+np.log10(frequencyD/(velocity_fts(1-Mnp.cos(theta)))*2
   (0.4+(frequencyD/(velocity_fts(1-Mnp.cos(theta))))2)(-1.6))
   (although this is a bit trickier, because it looks like the log only applies to the Strouhal number squared. However, comparing with the other equations I think like this it'd be correct.) Would be nice to discuss this.
   

3. Furthermore, according to p. 28 in Fink, the case distinction for n_wheels as implemented in noise_landing_gear seems to be incorrect. Fink states:
   
   Hence, there should be a distinction between n_wheels = 1 and n_wheels = 2, or am I wrong?

4. Would be nice to add the actual source of the equations/ method to the header: Martin R. Fink. Airframe Noise Prediction Method. Final Report, March 1977, US Department of Transportation.