# TCDS TC 732: Ross Aircraft Company

- Type: Type certificate data sheet
- Status: Current
- Holder: Ross Aircraft Company
- Revision: 0
- Revised: August 28, 1940
- Product: Aircraft, Small Airplane
- Certification basis: CAR 4a
- Data sheet PDF: https://openairdocs.org/files/sha256/e7/4e/e74e325d74d09dd62497cc52bd56921ef52ff339169ed150e794e49bb0617158
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5105BF3B354E765C8525673D0061BCCA.0001
- Page: https://openairdocs.org/tcds/TC%20732

## Models (2)

As the data sheet lists them.

- RS-2L
- RS-1

## What the data sheet says

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

```text
ROSS AIRCRAFT COMPANY
MODELS: Ross RS-1 and RS-21
I.C. NUMBER: T.C. 732
I - MODEI RS-1, 2 POLM (Approved 8/28/40)
Engine  Continental A-40-5

73 minimum octane aviation gasoline
Engine limits  For all operations, 2575 rpm (40 hp)
Airspeed limits  Level flight or climb - 90 mph True Ind.
Glide or dive - 122 mph True Ind.
(+20.2) to (+24-8)
Maximum weight
Maximum baggage
Cil capacity  gallon (-33)
Serial numbers eligible
1, 102, 201 and 202
II - MODEI RS-21, 2 POLM (Approved 9/13/48)
(Same as Model RS-1 except for revised engine mount per Rose Drawing No. 10058
A, change  in engine, front lift strut naification per Braeing No. 10018
10037 Rev. C and stabilizer assembly, modification per Rose Drawing No.
Engine  Lycoming 0-145-B3 (See also item 103.)
minimum octane aviation gasoline
Engine limits  For all operations, 2550 rpm (65 hp)
Airspeed  limits  Level flight or climb - 100 mph True Ind.
(See NOTE 3)  Glide or dive - 122 mph True Ind.
C.G. range  (+20.2) to (+24.8)
Maximum weight
Maximum baggage
Fuel capacity
cil capacity  5 quarts (-32)
Control surface  Elevator  27 degrees up  26 degrees down
Aileron  20 degrees up  20 degrees down
Rudder  30 degrees left  30 degrees right
serial numbers eligible  1 and up
Required equirment  2, 102, 201, and 204
SPECIFICATIONS PERTINENT TO ALL MODELS:
Datum  Level top longerons between cockpits  of wing
leveling means
Certification basis  Type  Certificate No. 732 (CAR 4a)
Froduction basis  None
Export eligibility  eligible for export as follows, subject to provisions
- Landplane - eligible
- Skiplane - not  eligible
(b) All other countries except Australia, Great
Britain and New Zealand.
EQUIPMENT:
Fropellers and Propeller Accessories
1. Propeller - Fixed pitch wood  8 1b8. (+44)  BS-2T
(less hub) rated for required
hp and rpm on the following
Static rpm at maximum permissible
throttle setting -
Not over 2450 Ipm
Not under 2275 rpm
No additional tolerance permitted.
Not over 71 inches
Propeller - Sensenich 70LY-36 or --  9 1b8. (+45)
any other fixed pitch wood
propeller rated for required hp
and rpm on the following limits:
Static Ipm at maximum permissible
throttle setting -
Not over 2300 Ipm
No additional tolerance permitted.
Not over 70 inches
Engine and Engine Accessories - Fuel and Oil System
(Cmitted)

102. Carburetor air heater  . 108. (-32)  2 1bs. (-32)
103-  Engine - Lycoming 0-145-B2  -3 1b8.(-25)
Landing Gear (See NOTE #)
201. Two main wheels assemblies,
7.00-4, Type II1, Firestone
Models 2AV or 2AVT with
4-ply rating tires.  3 1DB- (+183)  24 1bs. (+9)
Two main wheel assemblies,
16x7-3, E.L.P. Type, Goodyear
Model SIMBA with 4-ply rating
16x7-3 tires.  +3 1bs. (+9)
Steerable tail wheel (Ort-
Lancaster Drawings 10056 and
* 1bs.(+189)  * 1bs. (+189)
Two main wheel and brake
semblies, 6.00-6, Type III
Goodyear ISMBD (wheel assembly
brake assembly 511254A)
with 6.00-6, 4-ply rating tires  +8 1bs. (+9)
Miscellaneous (not listed above)
601. Cockpit canopy  14 1b8. (+40)
Prior to original certification each aircraft must satisfactorily pass:
An inspection for workmanship, materials,  and conformity before any
covering, metal priming or final finish is applied. All woodwork may
be varnished.
A final inspection of the completed aircraft.
A check of the flight characteristics.
Current weight and balance report including list of equipment included
in certificated weight empty, and loading instructions when necessary, must
be in each aircraft at the time of original certification and at all times
thereafter (except in the case of air carrier operators having an approved
weight control system).
NOTE 2.  Placard front cockpit as follows:
"Solo flying from rear seat only."
w4-Ply rating tires - 13 1bs. pressure required."
For airplane serial number 1 of Model RS-21, the following placar
ust be displayed on the instrument panel in full view of the pilot:
"Do not exceed 90 mph Indicated for Level Flight or Climb."
This placard may te removed provided the front list strut is modified
per Rose Drawing No. 10037 Rev. C and the stabilizer assembly is modified
per Rose Drawing No. 10018 Rev. E.
```

## ADs

None name its models.

## 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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