# TCDS ATC 683: Lockheed Aircraft Corporation

- Type: Type certificate data sheet
- Status: Current
- Holder: Lockheed Aircraft Corporation
- Revision: 0
- Product: Aircraft, Small/Large Airplane
- Data sheet PDF: https://openairdocs.org/files/sha256/64/c9/64c9d7cf3ec90e6b4eb7a9da70fb74e8ef7c43cb8eea31fe4ad717b3c517314b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0907BDE7BD8BEC2D85256738006D9576.0001
- Page: https://openairdocs.org/tcds/ATC%20683

## Models (3)

As the data sheet lists them.

- 14-N2
- 14-N3
- 14-N

## What the data sheet says

This is OCR from the scanned FAA data sheet. OCR can misread letters and numbers.

```text
MODELS:  Lockheed 14-11,  14-N2, 14-N3, 14 PCIM
ISL MOMBER: ATC 683
I - Specifications Pertinent to All Models
Placard speeds  level flight or climb - 240 mph True Ind.
Glide or dive - 284 mph True Ind.
Flaps extended - 115 mph True Ind.
Fuel capacity  544 gallons (4 tanks in center section wings;
2 front tanks at 150 gallons each (-20.5
and 2 rear tanks not including fuel system
at 172 gallons each (+22.5) (See NOTE 4)
0il capacity  44 gallons (1 tank in each nacelle at 22 gallons
each (-52.5) not including capacity of oil
No. passengers  11 (see Item 119 for location) (Standard crew 2,
pilots at (-52.5) (See Item 222)
Baggage  Maximum capacity of compartments: (See NOTE 1)
No. 1 - Nose compartment 1500 1bs.
No. 2 - Forward belly compartment 800 1bs.
No. 3 - Mid belly compartment 400 lts. (-20.5)
4 - Rear belly compartment 700 lbs. (+30.5]
Ballast compartment 350 1bs.
C.G. limits  (-0.3) and (+6.6) Level for weighing on main cabin
floor or window line.  MAC is 115.84 in.
MAC is 32.75 in. forward of spar center line)
Certification basis  Approved Type Certificate No. 683
Serial Nos.  1416 and 1503 only eligible.  Approval expired
Wigible under the terms of thie space  Army surplus Hudson type are not
EQUIPMENT:
(Datum 18 spar center line on under side of wing) (* Means net increase)
class 1.
101. Two engine ring cowls (Lockheed
Drawing 54022-4)  112 1bs.  (-89)

10
117 1bs.
10:  50 1ks.
104-  10 1bs.
105.  (exhaust gas)  12 1bs.
106.  60 lbs.
107.  control  20 lbs.
108.  Generator  36 1bs.
109-  75 1bs.
110.  (a)
(Lux type  25 lbs.
(b)  8 lbs.
111.  123 1bs.
112.  (a)
duty tires  171 lbs.
(b)  29 1bs.
113.  277 1bs.
114.
17 1bs.
115.  27 lbs.
116.  61 1bs.
117-  57 1bs.
118.
3/1/38)  56 1bs.
119-  53 1bs. each
Class II:
200-
201.  in wing  11 Ibs.
202.
122 1bs.
203.  a1)  50 lbs.
204.
62 lbs.
205.  3 lbs.
206.  80 lbs.
207.
and  ines  6 lbs.
nti  -1  cer  pump  5 1bs.
sli  nger  rings  24 1bs.
nd  anti-icer  fluid
24 1bs.
(Eclipse E-5)  36  1bs.
xide  6-FHM-13)  75  lbs.
fir  extinguishers
10 1bs.
tin  guisher  hand  type
8 1bs.
16 1bs.
re  ers  25 1bs.*
wheel
5 1bs.
strut:  • 1bs.*
(dural
5 1bs.*
cordan  ICE
58019 and
18 1bs.*
1tg
40 1bs.
RA-2A  23 1bs.
43  1hs.
fin  der
10 1bs.
share  control  19 1bs.
6 1bs.
unit,  wiring,  etc.
137 1bs.
ver  RA-4)  15 1bs.
unit.  wiring.  etc.
114 1bs.
in  stallat  ion  (with
t)  16 lbs.
217.  (Servi  ce)  36 1bs.

(D)  Cabin carpet (special heavy type,
replacing standard)  19 lbs.*  (+65
(0)  Leather lavatory bench covering  5 1bs.  (+232)
(d)  Cabin upholstery  (Laidlow
replacing linen)  20 1bs.*  (+50)
(e)  Cabin carpet (shorter than
service)  28 1bs.  (+55)
(£)  cabin mat, rubber  17 Its.  (+166)
218. (a)  Extra airspeed installation  4 lhs.  (-123)
(b)  Special instruments replacing some
of standard instruments
West Coast Branch for itemized
list dated 3/18/38)  Net decrease 3 lts.
219.(a)  Two passenger divan (Lockheed
Drawing 50383)  104 1bs.  (+29.5)
(b)  Chart table  46 1bs.  (+29.5)
(c)  Card table and clamps  13 lbs.  (+172)
(a)  Blue denim chair covers  6 1bs.  (+65)
(e)  Three-passenger divan (Lockheed
59  303)  (+17.5, +40-5, +6305)  93 1bs.
(£)  c1  othes  bench  2  lbs.
(g)  Map case (Lockheed 59293)  33 lbs.
(h)  Oxy  gen  supply  cabinet
Lockheed 59320  11 1bs.
220- (a)  Two passenger foot stools
(Drawing 59315)  19 1bs.
(b)  Passenger loading step  4 1bs.
(c)  Passenger interphone  2 1bs.
(a)  Passenger oxygen installation
Lockheed  58328)  5 lbs.
(e)  Passenger oxygen installation
(Lockheed 58329)  64 1bs.
221. (a)  Deicer boot and removable
equipment (wing)  (See NOTE 8)  44 1bs.
(b)  Deicer boot and removable
equipment (stabilizer)
(See NOTE 8)  11 Ibs.
(C)  Deicer boot and removable equipment
(fin) (See NOTE 8)  11 1bs.
222.  Folding type stewardess chair
(See NOTE  za)  16 1bs.
223.  Plexiglass nose replacing metal nose  5 1k8.*
224-  Addition of bronze and steel plates
to Goodyear brake assembly  7 1bs.*
225-  Bulkhead reinforcement, fuselage
Station 456 (Lockheed Drawing 50124E)  12 1bs.
226.  Brake fluid  gravity tank and fluid
(Drawing 42402)  2 lbs.
227.  Fuselage structural changes to
accommodate camera (lockheed Drawing
55560)  10 lbs.
228.  Auxiliary battery  11 1bs.
229.  Structural increase (consisting of
changes in shock strut, side strut  an d
ara 55008C: also tail bulkhead fitting  strut per Drawings 55007D,  55053D
50460A, stringer 19A and 20A extended
per Drawing 50050G, windshield
revisions per Drawing 50565A and 50801,
window frame gussets per Drawing
50050G, new emergency exit per Drawing
50063, and miscellaneous center section
and wing increases per Drawing 51000F)  56 1DS.
230-  Zinc chromate primer  (Interior)  20 Ibs.
231.
operating
Drawing 51851)  4 lbs.*  (+6705)
232.  W.A.C. dynamic suspension engine mount
Stand Make Drawing 2510.1  used in conjunction with Hamilton
blades
6111-12  11 1bs.*  (-77)
233.  Fuselage reinforcements in No.
baggage compartment  (lockheed Service
Bulletin No. 14-38)  6 lbs.  (-104)
234.  Radio operator's seat installation
(Lockheed Drawing 55450)  21 1bs.  (-30-5)
235.  Toe brake installation (Lockheed
Drawing 55380)  38 1bs.*  (-88)
236-  Fixed wing-slots installation (All
placard ceilings reduced 130 ft. when
this item is installed)  25 1bs.  (-7)

Hamilton Standard Hydromatic propeller
installation (replacing controllable
constant speed propeller) hubs 23E50,
blades 6139A-12, low pitch setting
22 degrees at propeller station 42
(in accordance with Lockheed Drawing
54270 and Hamilton Standard wiring
diagram No. SK 3676) (For Model 14-N)  141 Ibs.*  (-81)
Class III:
(a) Deicer installation (wing and
tail) fixed portion  (See NOTE 8)  25 1bs.  (0)
Emergency wheel lowering device
(independent oil-draulic system,
manually operated)  8 lbs.  (0)
NOTE 1. Weight and balance report including list of equipment included
in certificated weight empty, and loading instructions when necessary,
must be submitted for each aircraft with original inspector's report
and each subsequent report covering change in equipment.
NOTE 2.
Stewardess' seat limited to 130 lbs., not to be occupied by
passengers.  Placard accordingly.
(b)  Placard lavatory door as follows: "This room not to be occupied
during take-off and landing.
NOTE 3.  Eligible for export, at standard weight, as follows subject to
inspection  for equipment specified in Chapter XII of Inspection
Handbook  (7/19/39):
(a)
- landplane
- Skiplane - not eligible. However, structure complies with
the ski gear
(b)  All other countries except Australia.
The following placards must be installed in locations noted:
(In lieu of posting such placards, and subject to the approval
Chief, Air Carrier Inspection Section,  definite instructions must be
issued by the operator to assure compliance therewith.)
At the fuel tank selector valve:  "All fuel (to within 2 or 3
shall be used from each tank in the order listed below
before using fuel from  succeeding tank:  Right Front, Left Rear,
Left Front, Right Rear.'
At fuel tank filler caps: "In filling fuel tank, care must be
observed to ascertain that tanks are full in the following order:
Right Rear, left Front, Left Rear, Right Front."
Tab ranges are limited as follows:
to Right 6 degrees 10 feet.  Trim Travel Move to Right 25 degrees. Servo Travel Move
Rudder Tab, trim Travel Move to left 25 degrees. Servo Travel Move
to Leit 6 degrees 5 feet.
Elevator Tab, Trim Travel Up 25 degrees. Servo Travel Down 11 degrees
Elevator Tab, Trim Travel Down 25 degrees. Servo Travel Up 5 degrees
Aileron, Trim Travel (I.H. tab only) Up 26 degrees, Down 24 degrees
As measured from a neutral position 5 degrees down from chord plane
Servo Travel Down 17 degrees. Servo Travel Up 1 degree.
Relief valve in hydraulic flap operating system must be set to
unless Item Number 231per square inch to 1000 1bs. per square inch,  from 850 1bs.  is installed.
If provisions other than Item 215 are made for dumping, the fuel
dump valves shall be made positively inoperative.
If Item 215 (which complies with EI-11c)  is installed, the air-
worthiness certificate shall incorporate one  of the following
statements, as the case may be:
Non-Airline Carrier.  Fuel shall not be dumped except 1
ccordance with the provisions of CAR 60.900.
With Authorized weight in excess of standard - "Landing
shall not be made at a weight in excess of standard
except in accordance with CAR 61.7811.  Fuel shall not
be dumped except in accordance with CAR 61.7811 and

then only if the pilot deems it safer than landing at
a weight in excess of standard."
With authorized weight not in excess of standard -
'Fuel shall not be dumped except in accordance wit!
CAR 61.7811."
NOTE 8.  Standard (and provisional) weight may be increased 93 1bs. when
complete de-icer is installed.
II - Model 14-N, Designation 14 PCIM:
Engines  2 Wright Cyclones GR-1820G-105
Placard limits
Fuel:
90 minimum octane  laximum, except take-off
(CFR)  it sea level 36.7 in. Hg., 2200 rpm (900 hp
(Low impeller ratio)
90 minimum octane  At 6000 ft. 35.0 in. Hg.. 2200 rpm (900 hp)
(CFR)  (low impeller ratio)
95 minimum octane  At 11000 ft. 36.0 in. Hg.. 2200 rpm (750 hp)
(CFR)  (High impeller ratio)
95 minimum octane  At 17000 ft. 33.0 in. Hg.. 2200 Ipm (750 hp)
(CFR)  (High impeller ratio)
Takeoff (one minute) :
90 minimum octane  43.0 in. Hg.. 2200 rpm (1100 hp)
(CFR)
Propellers  2 controllable metal, constant speed (Hamilton  Standard hubs 3250 695 1bs. (-107.5) (See  blades 6111-12,
Placard ceiling  usable, in standard air, at 16650 lbs. at
an indicated airspeed of 110 mph with either
engine inoperative, the inoperative propeller
fully feathered  and the remaining engine
operating at full throttle at 2200 rpm (See
items 236 and 237)
Weights
Standard - 15650 1bs. (See NOTE 7)
Provisional - 17500 1bs. (See NOTE 7)
III - Model 14-N2 - Designation 14 PCIM
(Same as Model 14-N except for change in engines 16 lbs. net decrease)
Engines  2 Wright Cyclones GR-18200-102
Placard limits
fuel:
90 minimum octane  Men teste the variation teen 10 de to
(CFR)
6000 ft. 35.0 in. Hg., 2200 rpm (900 hp)
90 minimum octane
(CFR)  At sea level 43.0 in. Ng., 2200 rpm (1100 hp)
Propellers  2 controllable metal,  constant speed (Hamilton
staring 1 deg 295) 655 les. 6(1107.5, 10w pitch  setting 18 degrees)
Placard ceiling  10500 ft. usable, in standard air, at 15650 1bs.
at an indicated airspeed of 110 mph with either
enging open at to netle we 2200 faining
(See Item 236)
Weights
15650 1bs. (See NOTE 7)
Provisional - 17500 1bs. (See NOTE 7)
IV - Model 14-N3 - Designation 14 PCIM
(Same as Model 14-N except for change in engines 0 lbs.* and propellers
145 1b8.*)
Engines  2 Wright Cyclones GR-1820G-105A
Placard limits
Fuel:
90 minimum octane  Maximum, except takeoff:
(CFR)  At sea level 37.5 in. Hg.. 2300 rpm (900 hp)
(Low impeller ratio)
At 6700 ft. 35.4 in. Hg.. 2300 rpm (900 hp)
(Iow impeller ratio)

At 11000 ft. 36 in. Hg.. 2300 Ipm (775 hp)
(High impeller ratio)
At 17300 ft. 33.6 in. Hg.. 2300 rpm (775 hp)
(High impeller ratio)
90 minimum octane  Takeoff (one minute)
(CFR)  43.5 in. Hg., 2350 rpm (1100 hp)
Propellers  2 Constant speed full feathering hydromatic
(Lockheed Drawing 54270)
hubs 23E50, blades 6139A-12; low pitch setting
840 1bs. (-104)
Placard ceiling  160 an aged ver the ped re speller
fully feathered and the remaining engine operating
at 2300 rpm and 34 in.Hg..  manifold pressure
(with supercharger operating  in high impeller
10.1 gear ratio
Weights  mpty - Use actual (approximately 11085 lrs
-7.18) as 13 PCLM with Class I items only
Standard - 15650 1bs.
Provisional - 17500 1bs. (See NOTE 7)
```

## ADs (3, in force first)

- [AD 99-19-08](https://openairdocs.org/ad/99-19-08): AFM - Deicing · Lockheed 14-H, 14-H2, 14-N and 3 more. Effective Dec 27, 1999
- [AD 98-04-32](https://openairdocs.org/ad/98-04-32): AFM - Limitations Section - Icing · Lockheed 14-H, 14-H2, 14-N and 3 more. Effective Mar 25, 1998
- [AD 93-14-12](https://openairdocs.org/ad/93-14-12): Crewmember Protective Breathing Equipment Units · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 201 more. Effective Sep 2, 1993

## Registered aircraft by registry model (OpenAirDocs)

- [Lockheed 14-N](https://openairdocs.org/model/lockheed-14-n): 0 aircraft (registry code 5261506)
- [Lockheed 14-N2](https://openairdocs.org/model/lockheed-14-n2): 0 aircraft (registry code 5261508)
- [Lockheed 14-N3](https://openairdocs.org/model/lockheed-14-n3): 0 aircraft (registry code 5261510)

## STCs approved under this data sheet (2)

- [STC SA4-342](https://openairdocs.org/stc/SA4-342): ONE ONLY STC, SN 1416: Installation of the AH-4 Decelostat Brake Unit.. Pacific Airmotive Corp
- [STC SA4342](https://openairdocs.org/stc/SA4342): ONE ONLY STC, SN 1416: Installation of the AH-4 Decelostat Brake Unit.. Pacific Airmotive Corp

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