# TCDS TC 636: Stewart Aircraft Industries Inc.

- Type: Type certificate data sheet
- Status: Current
- Holder: Stewart Aircraft Industries Inc.
- Revision: 0
- Product: Aircraft, Small Airplane
- Data sheet PDF: https://openairdocs.org/files/sha256/bf/f2/bff26f31171b909e223aa3b519e2030488727f2a5dff275d7f5bb67c5dedee15
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CAF049BC8A39A42B8525673E004F5C11.0001
- Page: https://openairdocs.org/tcds/TC%20636

## Models (1)

As the data sheet lists them.

- OW6M

## What the data sheet says

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

```text
SIEWART AIRCRAFT INDUSTRIES, INC.
MODELS: Stewart OW6M (formerly Welch), 2 PCLM
I.C. NUMBER: 636
Engine  Aeronca E-113, E-1134, F-113B or E-113C
Fuel  73 minimum octane aviation gasoline
Airspeed limits  Engine limits  For all operations, 2400 rpm (36 hp)  Level flight or climb - 75 mph True Ind.
Glide or dive - 90 mph True Ind.
Propeller limits  Maximum permissible diameter 74 inches
C.G.  range
Datum  Leading edge of wing
Standard weight
No. seats
Baggage  Fuel capacity  9 gallons (two 4-1/2 gallon tanks in wing L.E.)
Cil capacity  3/4 gallon (engine sump)
Serial numbers eligible  112 and up (See NOTE A)
Required equipment  Certification basis  Type Certificate No. 636 (Aero. Bulletin 7A require-  101. 102. 103
Production basis  None (See NOTE A)
Eligible for  export  All countries except Great Britain, Canada, Australia
and New Zealand.
(Items included under "Required equipment" may not be removed unless
replaced by approved equivalent items.  be computed and the aircraft operation record revised accordingly.  The effect upon balance of all equipment
Values in inches shown in parenthesis after each item represents horizontal
arms to the C.G. of the item measured minus (-) ahead and plus (+) to the rear
(*) or minus (-) sign preceding the weight of an optional
net weight change  between that item and the equivalent
Propellers and Propeller Accessories
103-  Propeller  - wood (fixed or adj. pitch)
landing Gear and Floats
101-  16x7-3 wheels (Goodyear 3NBA)  12 1bs.
102.  6x2.00 tail wheel
303.  Hartman Model  "C" (formerly Welch)
cushion wheel  - 1 1b.
Miscellaneous (not listed above)
Miscellaneous items as noted in
approved weight and balance report
Parachutes (1 or 2)  0 Ibs. eac
Streamlined lift struts  -12 1bs. (approximately
NOTE A.  prior to original certification, each aircraft must satisiactorily pass:
(a)  An inspection for workmanship, materials and conformity before any
covering, metal priming or final finish is applied. All woodwork may
be varnished.
(b)  Final inspection of the completed aircraft.
(c)  Check of the flight characteristics.
NOTE 1.  No aircraft of this model shall be eligible for original certificatior
with single ignition  engines after 8/1/41.  In addition, no aircraft of these
models shall be eligible for recertification with single ignition engine
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)

- [Stewart OW-6-M](https://openairdocs.org/model/stewart-ow-6-m): 0 aircraft (registry code 70401TY)
- [Welch Lenna WELCH OW6M](https://openairdocs.org/model/welch-lenna-welch-ow6m): 0 aircraft (registry code 05620OQ)
- [Welch OW6M](https://openairdocs.org/model/welch-ow6m): 0 aircraft (registry code 0764605)

## STCs approved under this data sheet (1)

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC

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