J.P. Instruments Fuel Scan 450M Pilots Guide - Manual (Page 13)

For Your Safe Flight Page 11
used, fuel remaining and time to empty are not retroactively
recalculated.
Fine Tuning the K Factors
The K factor shown on the fuel flow transducer does not take into
account your aircraft’s particular installation. Fuel hose diameters
and lengths, elbows, fittings and routing can cause the true K
factor to be different from that shown on the fuel flow transducer.
Setting the K factors
Use the following procedure to determine the new K factors.
1. Make at least three flights of about two to three hours each. Note the
actual fuel used (as determined by topping the tanks) and the FS-
450M calculation of the fuel consumed for each flight = USD L and
USD R.
Flight
Fuel USED shown by
FS-450M
USed L USed R
Actual fuel used by
topping tanks
filled left filled right
1
n o
2
3
Total
2. Total n the FS-450M fuel used and o the actual fuel used for each
tank.
3. Record the current K factor here p left_________ right_________
and in the table below.
4. Calculate the New K Factor as follows:
New K Factor = (nFS-450M fuel used) x (pCurrent K factor)
(oactual fuel used)
New K Factor (L) = (n(L) ) x (p(L) )