user manual

An_.ndment 79
3/30/70
Vent llne Volume
Tank Volume
Pressure Measurement (±5 PSIA)
Temperature Measurement (ZI.5°F)
Measured Density
2Welght Measurement
tLoadlng Tolerance
Total Loading Uncertainty
APS Mission Uncertainties
TABLE 3.3-18
LM-7 Propellant Loading Uncertainties
LM-7 AP$ PROPELLANT
Fue! (Ib)
±0.2
zO.8
_0.5
±1.7
zO.7
zO.5
±0.0
±4.4
Oxidizer (!b)
_0.3
tl.3
tO.8
z4.3
zO.5
zO.5
±OtO. .
±7.7
Mixture Ratlo Variatlon -34.6
_V, !sp, Vehicle Weight Variation -54.0
Propellant Usage Uncertainty Due To Total
-9.7
Loading Uncertainty
Total Propellant Uncertainty ForMisslon _V -64.9
LM- 7 DPS PROPELLANT
Vent Line Volume ±0.2
Tank Volume ±3.4
Pressure Measurement (Z5 PSTA) _1.6
Temperature Measurement (1.5°F) Z6.1
Measured Density ±2.4
2Weight Measurement _0.5
1Loading Tolerance _OmO
Total Loading Uncertainty ±14.2
±0.3
Z5.6
Z2.6
Z14.8
±1.6
Z0.5
±0.0
±25.4
DPS Mission Uncertainties
Mixture Ratio Variation -115.7
_V, Isp, Vehicle Weight Variation -341.2
Propellant Usage Uncertainty Due to Total
Loading Uncertainty -29.3
Total Propellant Uncertainty For Mission AV -361.5
LM-7 RCS PROPELLANT
Loading Temperature ±0.6 ±1.8
Ullage Calculation ±0.4 ZO.6
Tank and Manifold Volume _0.8 ±1.4
Total ±1,8 Z3.8
1These will be known quantities after loading is accomplished.
21f weigh tank is used for off-loadlng, than weight measurement uncertainty
is _0.5 pounds per weigh tank. If flow meter is used for off-loadlng, then
weight measurement uncertainty is Z4.0Z of amount off-loaded.
I
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3.3-61 SNA-8-D-027 (III)REV 2
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