# TCDS TC 690: Rankin Joe

- Type: Type certificate data sheet
- Status: Current
- Holder: Rankin Joe
- Revision: 0
- Product: Aircraft, Small Airplane
- Data sheet PDF: https://openairdocs.org/files/sha256/d3/a3/d3a35923f3f1d5256ad1c89243b1afdb80756c709010b89a0a87bb0a7a6849d6
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B0BE53CD6641BC338525673D0055D3CA.0001
- Page: https://openairdocs.org/tcds/TC%20690

## Models (1)

As the data sheet lists them.

- Porterfield CP-50

## What the data sheet says

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

```text
MODEIS: Rankin, Porterfield CP-50, 2 PCIM
I.C. NUMBER: T.C. 690
Engine  Continental A-50-4 (See items 201 and 306)
(See also NOTE 4)
Engine limits  For all operations - 1900 rpm (50 hp)
Propeller  Maximum permissible diameter 86 inches
Airspeed limits  Level flight or climb - 91 mph True Ind.
Glide or dive - 123 mph True Ind.
Fuel capacity  1 gallon (in engine) (-30)  10 gallons (-15)
oil capacity
No. passengers  (+9) 0r  (+35) (See NOTE
Baggage  30 1bs. (+52)  (See NOTE 2)
Standard weight  1108 1bs.
C.G.  limits  (+1107)  and (+18.7)
Specification basis  Type Certificate No. 690
Serial Numbers  550 and up manufactured prior to 1/8/48 eligible.
Approval expired as of that date.
EQUIPMENT:  (Datum is wing leading edge) (* Means net increase)
Class I:
101.  Propeller - wood (fixed or
adj. pitch)  15 1bs.  (-47)
102.  6.00-6 wheels (Shinn 6C2 and 6C4)
with 2-ply tires  23 1bs.  (+3)
103. Carburetor heater  2 lbs.  (-38)
104.  Tail skid spring and shoe  5 1bs.  (+193)
105.  Engine cowl
106.  Firewall  (Ternplate)  10 lbs.  (-20)
Class II:
200.  Miscellaneous items as noted in
approved weight and balance report.
201.  Dual ignition engine
(a)  Continental A-50-5  10 1bs.*  (-25)
(b)  Continental A-50-8  7 ibs. "  (-25)
202.  Wheel streamlines  9 lbs.  (+6)
203.  Tail wheel  (+195)
(a)  6x2.00 full swivel with
special spring  3 lbs. *
(D)  3-3/8 solid rubber  lbs. *
(C)  6x2.00 steerable with special spring  5 lbs.*
204. Brakes
(a)  Shinn 6C2HB  7 lbs.  (+3)
(b)  Shinn 6C4HB  / Ibs.'  (+3)
205.  Special upholstery  2 lbs.*  (+40)
206.  Battery installation in engine
compartment (Exide 3-AC-7  or
4-AC-7)  13 1bs.  (-27)
207. Cabin heater  3 1bs.  (-28)
208.  Firewall (stainless steel)  Net decrease 5 lbs.  (-20)
209.  Stainless metal stripping  3 1bs.  (+45)
Class III:
301.  Miscellaneous instruments  Maximum 6 lbs.  (-4)
302.  Carpet  2 lts.  (+9)
303.  Emergency exit  2 1bs.  (+21)
304-  Skylight  Neglect weight increase
305.  Revised engine mount (for
rubber bushed engines)  Neglect weight increase
306.  Continental A-50-7 engine  Net decrease 3  lbs.  (-25)
307.  Engine primer  1 1b.  (-10)
308.  Use actual weight change
(a)  Air Transport 1468-580
(b)  Federal SC-1
NOTE 1.  Eligible for export as follows, subject to inspection for equipment
specified in Chapter XII of Inspection Handbook:
(a)  Canada
Landplane
- Skiplane - not eligible.  However, structure complies with Canadian
requirements for ski installation with a maximum ski height of 8-1/2
inches, and a maximum overhang of  1-15/16 inch to outer face of brake
plate.

(L) All other countries except Great Britain, Australia and New Zealand.
For airplanes serial numbers 550 to 559 inclusive, and 561 to 564
inclusive:  passenger is at (+10.5) or (+39); baggage (+66).  For above
front seat only. substantiated by weight and balance report:  noted serial numbers and also numbers 585 and up, following placard required  "Solo from
OIL J. The top fuselage cross tubes on the left-hand side of the airplan
ust aft of the rear seat and just forward of the instrument panel may b
used for leveling means.
No aircraft of these models shall be eligible for original certifi-
cation with single ignition engines after 8/1/41.  In addition, no aircraft
of these models shall be eligible for recertification with single ignition
engines unless such aircraft were either previously certificated with single
ignition engines or were originally certificated prior to 8/1/41.
```

## ADs

None name its models.

## Registered aircraft by registry model (OpenAirDocs)

- [Northwestern PORTERFIELD CP-50](https://openairdocs.org/model/northwestern-porterfield-cp-50): 0 aircraft (registry code 6480144)

## STCs approved under this data sheet (2)

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [STC SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber Inc.

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