Equasions Flashcards
Track Error Angle =
(DOTX60)/D along trk
Max theoretical range=
1.23xsqrH1 + 1.23xsqrH2
H=feet
Range=NM
ILS GS exetremities?
Lower=0.45xG.P
Upper=1.75xG.P
Volts (V)=
IR
Power=
IV = Isq X R
Frequency (Hz)=
RPM X No pole pairs/ 60
Range (Land)=
Range (sea)=
2 X Sqr PWR (watts)
3 X sqr PWR (watts)
Power factor=
Kw (real/useful power)/Kva (total/apparent power)
PRF(pulse rep freq)=
1/PRP (pulse rep period)
Pulse radar max range (nm)=
C/2 x PRF
Minimum range of pulse radar (nm)=
C x pulse length/2
Thrust=
MV
Where V is the delta of air entering vs air exiting
Total thrust=
M(Vjet-Vflight)+A(pj-p0)
M = mass air flow A = exhaust x section V flight = TAS VJet = exhaust velocity Pj = exhaust static p Po = Ambient static p
NAM=
NGM x TAS/GS
NGM (where TAS known)=
NAM x GS/TAS
NGM (TAS not known)=
NAM+/-(WCxtime)/60
Time in minutes
Specific Air Range=
TAS/fuel flow
Gross Fuel Flow=
Fuel flow/ground speed
PSR=
E x H/
O + H
E = endurance in hours O/H = ground speed
PET=
D x H/
O + H
D = NM O/H = ground speed
RMS=
0.707 peak voltage
QDM =
Hdg (M) + RB
Rod for glide slope?
5 x GS x (gp/3)
Change of RoD?
5 x change in gs
Beam width =
70 x wavelength / dish diameter
Displacement =
No cylinders x piston area x stroke (twice the throw)
