PRINCIPLE PERFORMANCE AND WEIGHT DATA IF THE MI-4 HELICOPTER

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80T00246A011400330001-8
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 13
• Document Creation Date: December 22, 2016
• Document Release Date: August 6, 2009
• Sequence Number: 1
• Publication Date: October 4, 1960
• Content Type: REPORT

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PRINCIPAL PERFORMANCE
an d
WEIGHT DAT A
of the Mi-4 HELICOPTER
(1959) .
(Supplement to the Mi-4 He]icopter Description)
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' The performance of the Mi-4 helicopter being produced now
i s improved as. compared to the helicopters of earlier .p~roducti.on
due to some structural modifications and development.
Perfo~-marce cf the Mi-4 fle7.i.copter fitted with Metal
Blades
.. 3, z 8~ ~J'
Maximum speed (a't S: ~. and up to 1 ,000 m.)
/5~ 990-Gil. / ~ / 6H~ti
ti~ith normal take-off weight of 7,250 kg........ 210 km:/hr.
' /G~7SO .~~,,
with take-off weight of 7,600 kg. in overload
' /d6 n,~h
co.,dil;ion ...:.....:.......,......~..........,... 170 km./hr.
Minimum speed ............................:........ 0
Service ceiling
~'~ / 5990 ~ ? /~; G 7p fir.
with .normal take-off weight of 7,250 kg........ 6,000 m.
i~, .7.50 ~ -
with take-off weight of 7,600 kg. in overload
condition ............:......~.....,........... 5,,,000 rn.~:
Hovering ceiling (with ground effect)
' i s, ~ 90 ~ 9. ~ `/O 6t
with normal take-off weight of 7,250 kg...... 3,000~m.
/b, 7 5z+ U,a .
wfth take-off weight of 7,600 kg. in overload
6, s55 fir,
condition ...?....~ .................... ...... 2,000 m.
Cl.mb (with normal take-off weight)
3,z8o~r
to:
1,000 m.
q~ ~ yo'
... ............................
4 min.
3,OO~m .
~e,~~o
~
...............................
11.6 mi;
6,OO
m .
................................
32 min.`
Pr~cti~al range, and cruis:~.ng speed with normal... fuel Load of
600, k~g. aid 5?Io reserve - ~ z98 1~~
/5/ 990 ~
,with normal take-of'f weight of 7, 250 kg, , .. _==~80 krn_
1~b km.;'hx.
with take-off weight of 7,600 kg. in o~rerload 2b~ `~~.
465 km~
condi.tion ... ..............~.....:............ -160 km.]hr.
~ ~' S hr/il'
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Practical endurance and economic speed with normal. ?fuel load
i3z3 ~h?
of 600 kg. and 5~ reserve
with normal take-off weight of 7,250 kg. ?....._3 _hrs20 min?.
120 km.~hr.-
/b 75U ?~
with take-off weight of 7,600 kg. in overload ~~ Sew
condition ................................... 3 hrs0~5 min.
120 km.7hr.~
7~F, S ~~~h
The Mi-4 Performance
3, ~ ~ ~r-
Maximum speed (at S.L. and up to 1
000 m.)
,
,/
?? i5, 95'0 ~ I ZT hyo1~
with normal take-off weight of ?,250 kg...... 200 km./hr.
/6~ Aso ~
with take-off weight of 7.600 kg. in overload
condition ................................... 170 km./hr.
Minirnum~speed .......................:... ........ 0
Service ceiling ,
/~90 .G1o /8~0~/U ~i`?
with normal take-off weight of 7,250 kg...... 5500 m.
with take-.off weight ot'~ 7,600.?..kg. in over.l oad
condi.tion ..........~.......' ........:.....:.~:. 4,500 m.
Hovering ceiling (with ground effect) ~ ..-
with normal take-off wei ht of 7 250 k , , , , . ~, sss~r '
g , g 2,000 m.
/~ ~~ ~~ ?
with take-off weight of 7,600 kg. in overload
3, z.8o~~-
condition :..~ ..........................:..... 1,000 m.
Climb (with normal take-off weight)
3~ y ~D
to: 1,000 m . ............................... 4.6 min,.
9, B+~a fir-
3,000 m . ............................... 13.2 min'.
/B~ oyo~-r
5, 50 m . ...................... ~ ......... 33.1>,>~riin.
Practical range and cruising speed with normal fuel load of
/3Z3 ~?
. 600. kg. sand 5~ reserve ~ zs5 ~,~ _
is, 99a ~ ? ~ ~
k
410
_
m .
_
. ~ with normal take-off weight of 7,250 kg....???~ X60 km./hr,
with take-off weight of 7,600 kg. in overload 'a4G~,~
condition ..........~.....,.............,.. 395 km. ,-
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Praotical endurance and economic ,speed with nor;nal fue]. load
oP 600 kg. and 53b reserve ? .
/5, 9~0 -Gh 2 hrs. 55 min.
with normal take-off weight. of 7,250 kg? ????-120 km.~hr.
with take-ofd weight cf 7,600 kg.in overload
r 2 hrs.4(~min.
? condition .............: .........:............. 12b km-~hr-
. ~~- S ~
The Mi-4 height Data.
. ~ ~5r9o ~
1.-Normal take-off weight ............?...???? 7,250 kg.
2. Tales-off weight in overload condition ..... 7,00 kg.
-
4,860 kg.
3. VYeight empty (standard.Mi--4 helicopter) ...
5~ z7o Ch .
t~. Full load (normal) ......'~......?...?....?.;. 2,390 kg.
.. 6~ oho ?Gl~ .
S. Full?.load (overload) ........~ .............. 2,740 kg.
inoludin~t.
. ~ l 7G. 5 -Gh .
~. pilot ~ .:......................... 80 kg..
z~l.z~ s ~?
oil ..~ .......................... 110 kg.
Fuel reserve and fuel. required for take-off and landing ..
~~ ~ fullload (overloaded) ...........?~?.??? 2,450 kg:..
zvz, s ~ti
........... 100 kg.
full 1 oad (normal ............?............. 2 ,100 kg.
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of auxi,li ary equipment (not included in standard we3.ght Pn,pt,y,
but which can be installed b~y the customer's request as a
part of useful. load)
~0 3 ~ ?'
Radio Equipment .:...............~............... X37.5 kg?.
.
VFW transmitting-receiving radio set
(PC~IY-3)~~
Automatic direction finder (APK-5)
;_
Radio altimeter(PE-2)
Interphone. equipment (CIIY-2)
'
Flux-gate gyro ,compass (I'HK-I) ,
6.2 -e%.,
Co-pilot's Instrument panel ......................~. 2.8 kg.
Artificial. horizon. (AII(-47b)
'Air speed indioator . (YF250) . ~. ~, ~
Instrument Panel in Cargo Compartment .......:~~.. 1.S kg.
Clock (ABPM) ~ ,
- . Altimeter (~-I2)
Panel struoture and. lighting equipment
727.5 -GG,
Troop-carrier, Freight grid Ambulance Equipment ... 330.0 kg.
_ Troop seats (for 16 men)
~~ Static cables (2)
Loading ramps i
Vehicle wheel chocks (8) '.
' B7I,-47 Winch (hand operated)..
Vehicle "3acks
Cargo tie-down cables.
~'~- Stretchers (8) '
,~ First aid kits thermoses and drinking pots
Swivel brackets for*!s
Medical attendant's table
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K[I-2I Oxygen regulators for the wounded (8)
Swing-in hoist with &1I-47 winch ~~
Swing_in hoist with lII[T-2 electrically-operated winch
Cabin combustion heater
.. g
Equipment .................................... 320 ?
Landing light
Cabin heating ducts
Cargo doors light
' Warning horn in cargo compartment,
Ladder in cargo compartment ,
External cargo sling installation
7oG G~
Taxying light.
Flare magazine. ,
Blade deicing system ::
Alcohol for de-icing system
Ventral container ~5 ~ ~
Neutral Gas System. ...:.........~.:,........... 7.0 kg.
Pilots' oxygen equipment
Autopilot
Auxiliary fuel ?tank (500 litres)
Auxiliary fuel tank (2,000 litres)
Windaoreen?de-icing system
Piping
Gas bottl?
Equipment .for 11-passenger version (without a toilet
s 772.0.
room) ..:.......v..:....a ...................... 350 kg?
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yeat':~~These ~ factors, in turn, affect the number of pil ot~. and
mechanics, ammount of depreciation and insurance.
The operating costs are calculated.on a monthly basis.
tion, operating conditions and the number of hours flown per.
.Operating costs depend considerably on th.e type of opera-
,.t~ ~` Approximate Operating Cost
of, the Mi --4 Helicopter
E "Daily1t 'or ."Ye,arly!' costs can easily be calculated as indicated
elow.
1. Crew Members
The number of pilots required. will depend on duties the time
of day or night and the number of days per week when the heli-
..copter is operated. General formula for calculation of the crew
'monthly ,total salaryi
number of pilots x monthly salary =dollars per month. `.
~~ The number of mechanics depends upon the number of flights.,
performed and the number of flying days per weeks as well as
the time of. day or night when the mechanics work;. Hence,:.
mechanics'. total..salary is the number.. `of mechanics x monthly ?
salary . _ :dollars per month.
. Fuel and Oil
Parts Replacement
Experience, in:.the helicppter operat on shows that the .reply-=
Fuel: Fuel. .consumption at cruising rating'is approximaaely.
Lubricantso .Their cost' is estimated as .556 of. fuel cost,.: Hence,
Litres. per. hour. x; litre cost =dollars per hour.
5qo of. cost ~ (c)~ ._ do3l~rs: per hour,
Total fuel .and. oil: =cost
1~umber oP..'.flying. hours per month x dollars, Item (e) ._ .dollars . .
Ltem'(C) + htem (. ).. =dollars perhour.
cement of:.parta, including depreciation, is estimated, at
22..60..: dollars per :hour. Fence, ,the ;number of? flying hours :per.?
month, x? 22.60 dollars ?per? hour ~., dollars p.er.. mon~n.
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. Engine Overhaul Cost
dollars per month.
The'. cost of the engine, overhaul including . necessary , rep]: a-
' cement of parts ie.:estimated at.. ?..30 dollars per hour, or the
number of flying .hours per month x ~. 7.3..0 .dollars per hour. ;
Depreciation
Depreciation coats are approximately ;estimated at ,
33,.00 dollars per flying hour.
The, number of flying hours per?month:;.xdepreciation cost
dollars per month..
Operating cost of the.~~i-4:. helicopter:.is calculated by
` dollars:-per.
.?/ ,
11 .~
?~
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summing up all the costs`t~
pilots' salary
mechanics? salary..
fuel and oil
parts~~~replacement
engine. overhaul cost:.
depreciation.
total .operating .cost per month.