# TCDS A1WE: Hamilton Aircraft Company Inc.

- Type: Type certificate data sheet
- Status: Current
- Holder: Hamilton Aircraft Company Inc.
- Revision: 2
- Revised: October 1, 1963
- Product: Aircraft, Small Airplane
- Certification basis: Part 3, CAR 3
- Data sheet PDF: https://openairdocs.org/files/sha256/2b/05/2b05494996c8d08ed6d11f6dffa18ffdf14556962b5751829fe5c23a620bc071
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8A081107DD34493D85256738005AF22F.0001
- Page: https://openairdocs.org/tcds/A1WE

## Models (2)

As the data sheet lists them.

- T28R-2
- T28R-1

## What the data sheet says

From the PDF's text layer, line by line; tables lose their columns. The PDF is the record.

```text
Page No. 1 2 3
Rev. No. 2 2 2
FEDERAL AVIATION AGENCY
A1WE
Revision 2
HAMILTON
T-28R-1
T-28R-2
October 1, 1963
TYPE CERTIFICATE DATA SHEET NO. A1WE
This data sheet which is a part of type certificate No. A1WE prescribes conditions and limitations under which the product for
which the type certificate was issued meets the airworthiness requirements of the Civil Air Regulations.
Type Certificate Holder Hamilton Aircraft Company, Inc.
6501 South Park Avenue
Tucson, Arizona
I - Model Hamilton T28R-2 (Normal Category), approved January 31, 1962 (see NOTE 2 regarding modifications required for
    conversion from Military T-28-A)
Engine (1) Wright R-1820-56A, -66, -72A (with 3:2 reduction gear ratio)
   See NOTE 5
                        or (2)  Wright 704C9GC1 (with 3:2 reduction gear ratio)
Fuel 100/130 minimum grade aviation fuel
Engine limits                                               M.P.      Alt.
Engine (1)         HP.    R.P.M.     In.Hg.      Ft.
Low Impeller Ratio
Takeoff (five min.) 1350 2700       48.0      S.L.
Maximum continuous 1200     2500       44.0      S.L.
Maximum continuous 1200     2500       43.5      2500
High Impeller Ratio
Takeoff (five min.) 1000     2600       44.5      14500
Maximum continuous 900 2500 42.0 11000
Maximum continuous 900 2500 40.0 17000
Engine (2)
Low Impeller Ratio
Takeoff (five min.) 1200     2500       45.5      S.L.
Takeoff (five min.) 1200     2500       43.0      4300
Maximum continuous 1000     2300       39.5      S.L.
Maximum continuous 1000     2300       37.2      6900
High Impeller Ratio
Takeoff (five min.) 1000     2500       44.5      14200
Maximum continuous       900     2300       40.0      15200
Maximum continuous       900     2300       42.5       9700
Propeller and propeller limits Hamilton Standard, constant speed, 33D50 or 43D50 hub with 6601-17S
blades
Diameter:  Max. 121-7/8", min. allowable for repairs 120" (See NOTE 4)
Pitch setting at 42 in. station:
Engine (1) Low 20.0°, high 57°
Engine (2) Low 20.5°, high 57°
Airspeed limits Never exceed                        307 m.p.h.  (266 knots) CAS
Maximum structural cruising         236 m.p.h.  (205 knots) CAS
Maneuvering                         180 m.p.h.  (156 knots) CAS
Flaps extended                      160 m.p.h.  (139 knots) CAS
Landing gear extended               160 m.p.h.  (139 knots) CAS
C.G. range (+144.6) to (+150.2)
(effect of landing gear extension - 2700 in.-lb.)
Empty weight C.G. range None

A1WE 2
Maximum weight Takeoff 7600 lb., Landing 7600 lb.
No. seats 5(1 at 138.5) (2 at +171.5) (2 at +200.5)
Baggage None
Fuel capacity 170 gal. with 4 cells (two 66 gal. main wing tanks at +114 and two 19 gal. aux. wing
tanks at +110) or 125 gal. with 2 cells (two 62.5 gal. main tanks at +164) See NOTE 3
Oil capacity 10 gal. (+65.2)
Control surface movements Wing flaps                        Down 36.5°
Aileron tab Up 12.0° Down     3°
Aileron Up 15.5° Down   10°
Elevator tab Up 15.0° Down 15°
Elevator Up 24.0° Down 16.0°
Rudder tab        Left 19.0° Right  11.0°
Rudder            Left 25.5° Right  24.5°
(Allowable limits plus or minus 1/2°)
Serial Nos. eligible All UASF serial Nos.
II - Model Hamilton T28R-1 (Normal Category), approved March 26, 1962 (see NOTE 2 regarding modifications required for
conversion from Military T-28-A)
Same as Model T28R-2 except for tandem cockpits, interior arragement, and flight controls
Engine (1)  Wright 1820-56A, -66, -72A (with 3:2 reduction gear ratio)
   See NOTE 5
(2)  Wright 704C9GC1 (with 3:2 reduction gear ratio)
   Augmenters per Hamilton Dwg. 674-51 optional with 704C9GC1 engine.
Fuel 100/130 minimum grade aviation fuel
Engine limits                                               M.P.      Alt.
Engine (1)                 HP.    R.P.M.     In.Hg.      Ft.
Low Impeller Ratio
Takeoff (five min.)     1350     2700       48.0      S.L.
Takeoff (five min.)     1350     2700       47.0      1300
Maximum continuous 1200     2500       44.0      S.L.
Maximum continuous 1200     2500       43.5      2500
High Impeller Ratio
Takeoff (five min.) 1000 2600 44.5 14500
Maximum continuous 900     2500       42.0      11000
Maximum continuous 900     2500       40.0      17000
Engine (2)
Low Impeller Ratio
Takeoff (five min.)     1200     2500       45.5      S.L.
Takeoff (five min.)     1200     2500       43.0      4300
Maximum continuous 1000     2300       39.5      S.L.
Maximum continuous 1000     2300       37.2      6900
High Impeller Ratio
Takeoff (five min.) 1000     2500       44.5      14200
Maximum continuous 900     2300       40.0      15200
Maximum continuous 900     2300       42.5       9700
Propeller and propeller limits Hamilton Standard, constant speed, 33D50 or 43D50 hub with 6601-17S blades
Diameter:  Max. 121-7/8", min. allowable for repairs 120" (See NOTE 4)
Pitch setting at 42 in. station:
Engine (1) Low 20.0°, high 57°
Engine (2) Low 20.5°, high 57°
Airspeed limits Never exceed                        307 m.p.h.  (266 knots) CAS
Maximum structural cruising         236 m.p.h.  (205 knots) CAS
Maneuvering                         180 m.p.h.  (157 knots) CAS
Flaps extended                      160 m.p.h.  (139 knots) CAS
Landing gear extended               160 m.p.h.  (139 knots) CAS
C.G. range (+144.6) to (+150.2)
(effect of landing gear extension - 2700 in.-lb.)
Empty weight C.G. range None

3 A1WE
Maximum weight Takeoff 7600 lb., Landing 7600 lb.
No. seats 2 (1 at 145) (1 at +198)
Baggage None
Fuel capacity 170 gal. with 4 cells (two 66 gal. main wing tanks at +114 and two
19 gal. aux. wing tanks at +110) or 125 gal. with 2 cells (two 62.5
gal. main tanks at +164) See NOTE 3
Oil capacity 10 gal. (+65.2)
Control surface movements Wing flaps                        Down 36.5°
Aileron tab         Up  12.0°     Down    3.0°
Aileron             Up  15.5°     Down   10.0°
Elevator tab        Up  15.0°     Down   15.0°
Elevator            Up  24.0°     Down   16.0°
Rudder tab        Left  19.0°     Right  11.0°
Rudder            Left  25.5°     Right  24.5°
(Allowable limits plus or minus 1/2°)
Serial Nos. eligible All UASF serial Nos.
Data Pertinent to All Models
Datum 100.5 in. forward of fuselage nose jacking fitting (fitting located at Fuselage Station 50.5
right side of firewall)
Leveling means Lugs in nose wheel well on aft bulkhead and side beams
Certification basis CAR 3 as amended to May 15, 1956, and Amendments 3-1 thru 3-5.
Type Certificate No. A1WE issued January 31, 1962.
Date of Application for Type Certificate November 16, 1959
Production basis None.  Prior to original certification of each aircraft, an FAA representative must perform
an inspection for workmanship, material and conformity with the approved technical data
for the modification from military to civil version; and a check of the flight
characteristics.
Equipment The basic required equipment as prescribed in the applicable airworthiness regulations
(see Certification Basis) must be installed in the aircraft for certifcation.  In addition, the
following items of equipment are required:
(a)  FAA Approved Airplane Flight Manual, dated January 31, 1962, for Model T28R-2,
and March 26, 1962, for Model T28R-1.
NOTE 1. Current weight and balance report, including list of equipment included in certificated empty weight, and loading
instructions when necessary, must be provided for each aircraft at time of original certification.  The certificated
empty weight and corresponding center of gravity locations must include system oil of 41 lb. at (+65.2) and
unusable fuel of 72 lb. at (+164) with standard two-cell installation with or without integral wing tip tanks and
unusable fuel of 44 lb. at (+151.5) with four-cell installation.
NOTE 2. Prior to civil certification, military model T-28A aircraft must be modified in accordance with Hamilaton Aircraft
Dwg. List No. 674 to become Model T28R-2 aircraft or Dwg. List No. 674-1000 to become Model T28R-1
aircraft.
NOTE 3. Integral wing tip tanks (42 gal. each wing) are approved for the 2 cell (125 gal.) fuel system only in accordance
with Hamilton Aircraft Dwg. No. 674-56.
NOTE 4. Placard on Instrument Panel in full view of the pilot:
"Avoid continuous engine operation between 1850 and 2200 rpm during ground operation and in flight with
landing gear or flaps extended.
NOTE 5. The Wright 1820-56A, -66 and -72A engines are not approved for use on aircraft equipped with the 4 cell (170
gal.) fuel system.
- END -
```

## ADs

None name its models.

## Registered aircraft by registry model (OpenAirDocs)

- [Hamilton T-28R-2](https://openairdocs.org/model/hamilton-t-28r-2): 0 aircraft (registry code 4080102)

## STCs approved under this data sheet (2)

- [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc.
- [STC SA01406NY](https://openairdocs.org/stc/SA01406NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K017 on single and multi-engine fixed light aircraft and
rotary wing. Airwolf Filter Corporation

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