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MIL STD 704A（通知1） 军用标准 电力飞机特性和使用（1968年2月7日）[替代MIL E 7894A]

ID：47143

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大小：0.55 MB

页数：12页

时间：2023-03-19

金币：20

上传者：战必胜
MIL-S'l'J)..T04A
10000ICE
.1
1
nanD!
1968
MILl'l'ABY
S'l'AIDARD
BLECDIC
POWER,
AIRCRAPl',
ClWlAC'1'BBIS'l'ICS AID U'lILlZA'l'IOR OF
'!'bie
actice
should
be
t11e4
in
front
at
Nll1ta.ry
Stan4ard
MIL-S'l'D-T04A,
dated
9 .AQswlt 1966.
!l'O
ALL
AC'l'IVI'l'IES:
1.
Malte
the
tollowing
pen
and
ink
chan
...
:
(a)
pqe
1,
paragraph
1.3:
Delete,
ad
substitute:
"1.3
Baeis
tor
characteristics.
'lbe
characteristics
aDd
limits
delineated
and
epeci-
fied
1n
this
standard
are
baaed
on
the
utilization
restrictions
and
requirements
atated
in
aection
6
ad
the
notes
and
..
sumptions
stated
in
section
T
ot
this
standard."
(b)
Paae
1,
paragraph
3.3.2,
last
11ne;
Delete
"limite"
and
substitute
"level",
(c)
Page
5.
paragraph
5.1.3.5:
Delete,
ad
substitute:
"5.1.3.5
Wave
torm.-
'lbe
voltage
wave
torm
aha.ll
be
within
the
f'ollowing
limits:
(a)
Deviation
tactor:
The wave
torm
shall
not
deviate
f'rom
corresponClina
points
of'
the
tundamental
by
more
than
5
percent
ot
the
peak
value
ot
the
fundamental.
(b)
'.rotal
harmonic
content:
8
percent
of'
the
tundamental
(J'DIS)
when
measured
with
a Clisto%'tion
meter
as
distortion
of'the
tundamental
frequency.
(c)
Individual
harmonic
content:
5
percent
ot
the
f'uDclamontal
(rms)
when
measured
with
a harmonic
analyzer.
Crest
tactor:
1.~1
+0.15
(see
1.6.8).
(Note:
Deviation
tactor
computed
trom
the
aatual
creat
tactor
~
exceed
the
deviation
f'actor
at
the
peak
ot
the
wave
torm.)"
(d)
Page
6.
parasraph
5.1.5:
Revise
item
(b)
to
read
as
tollows:
"
"(b)
Emergency power
sources
- '!'be
frequency
shall
be
maintained
at
400
:t.40
cps
with
the
voltage
within
the
limits
of'table
I.
Below 360
cps,
the
t're-
quency/voltage
(F/V)
ratio
shall
not
tall
below
3.0
(F/V)."
(e)
Page
1.
paragraph
5.2.3.
last
two
linee:
Delete
last
sentence.
(t)
Page
9.
paragraph
6.8.1,1,
aecond
and
tbird
lines:
Dele+e !!Iecona
aentence.
Ipse -
MIse
./
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