# TCDS A6EA: Sky Enterprises Inc.

- Type: Type certificate data sheet
- Status: Current
- Holder: Sky Enterprises Inc.
- Revision: 5
- Revised: March 24, 2025
- Product: Aircraft, Small Airplane
- Certification basis: CAR 3, CAR 4b
- Registered aircraft: 9, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/6d/be/6dbe9bfd18c4ba5cc321c41060904b22f3a4843866ade3bf735d9e49b3c847c0
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146610256120250326204552.0001
- Page: https://openairdocs.org/tcds/A6EA

## Models (1)

As the data sheet lists them.

- UC-1 (Twin Bee)

## What the data sheet says

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

```text
DEPARTMENT OF TRANSPORTATION 
FEDERAL AVIATION ADMINISTRATION 
 
TYPE CERTIFICATE DATA SHEET NO. A6EA 
This data sheet, which is a part of Type Certificate No. A6EA prescribes conditions and limitations under which the product for 
which the Type Certificate was issued meets the Airworthiness requirements of the Civil Air Regulations (CAR) Part 3 and Part 4 
(specifically partial 4b.356). 
 
Type Certificate Holder: Sky Enterprises, Inc. 
10501 Shivalik Circle 
Anchorage, AK 99507 
Type Certificate Holder Record Legend Aviation & Marine, LLC (c/o Don Dewey) Acworth GA transferred TC A6EA to 
Sky Enterprises on March 24, 2025 
 STOL Aircraft Corporation Norwood Massachusetts transferred TC A6EA to Legend 
Aviation & Marine, LLC c/o Don Dewey on October 20, 2017 
United Consultants transferred TC A6EA to STOL Aircraft Corporation Norwood 
Massachusetts on October 10, 1969 
 
I - Model UC-1 5 PCAM (Normal) Approved June 25, 1965 
 
Engine 2 Lycoming IO-360-B1D 
 
Fuel 100/130 Minimum grade aviation gasoline 
 
Engine limits For all operations, 2700 r.p.m. (180 h.p.) 
 
Propeller and 2 Hartzell HC-C2YK-2RB/7666A-2 
propeller limits Diameter: not over 74”, not under 72”; 
no further reduction permitted 
 
Pitch setting at 30 in. station: 
Low: 14.0° 
Feathered: 79.3° 
Placard: Avoid continuous operation between 2000 and 2250 r.p.m. 
 
Airspeed limits (CAS) Maneuvering: Vp 131 m.p.h. (114 kt) 
 Maximum Structural Cruising: Vno 132 m.p.h. (115 kt) 
 Never exceed: Vne 166 m.p.h. (144 kt) 
 Flap Extended: Vfe 105 m.p.h. ( 91 kt) 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Page No. 1 2 3 
Rev. No. 5 2 2 
A6EA 
Revision 5 
Sky Enterprises, Inc. 
UC-1 (Twin-Bee) 
 
March 24, 2025

A6EA 2 
 
C.G. range   
110.6 
3800 B 
 
 
118.6 
C D 
3708 
 
Aircraft 
Weight 
Lb. 
3383 118.7 
 
LANDPLANE 
 
 
 
 
3098 
 
Landplane Operation: 
PTS. A-B-D-E-A 
Seaplane Operation 
PTS. F-C-D-E-F 
 
SEAPLANE 
 
A F E 
109.9 115.2 119.8 
CG. Position - Inches Aft of Datum (Gear Extended) 
Gear retraction moment 2900 in.-lb. 
 
Empty weight C.G. range None 
 
Datum Longitudinal reference station 0 located 97.50 inches forward of 
leading edge of wing. Horizontal reference is located 50.00 inches below 
and parallel to Category the hull deck (W.L.0.00) 
 
Level means Lugs on front and rear left-hand, and rear right-hand door frames 
 
Maximum weight 3800 lb. 
 
Minimum crew 1 (Pilot) 
 
No. of seats 5 (2 at +62.0”, 2 at +96.0”, 1 at +127.0”) 
 
Maximum baggage 300 lb. (200 lb. at +118.0”, 100 lb. at +147.0”) 
 
Fuel capacity Main Tank: 85 gallons at 116.0” 
(unusable - 1.5 gallons) 
Auxiliary Tank: 16 gallons at 299.5” 
 
Oil capacity 2 gallons per engine at 101.9” (usable - 1.5 gallons). See Note 1 for system oil. 
 
Control surface movements Wing Flaps Up  0 ° Down 30 ° 
(Max.) Aileron Up  20° Down  20°  
Rudder Right 30°  Left 30 ° 
Rudder trim tab  Right 17  1/2° Left 33 ° 
Elevator   Up 25° Down 25 ° 
Elevator trim tab  Up  37° Down  27 ° 
Serial Nos. eligible 1 and up 
 
Certification basis CAR 3 dated May 15, 1956, plus Amendments 3-1 through 3-8, plus CAR 4b.356 
(except for the requirement enabling the main cabin door to be opened from the 
outside). Date of Application for Type Certificate February 2, 1963.

A6EA 3 
 
 
Production basis None. Prior to original certification of each aircraft an FAA representative must 
perform a detailed inspection for workmanship, materials, and conformity with the 
approved technical data, and a check of the flight characteristics. 
 
Determine that all unmodified parts (parts built under the original Republic RC-3 
Type Certificate No. 769) are in an airworthy and unaltered condition. 
 
This determination may be accomplished by means of an examination of the 
aircraft records, and to the extent possible, a visual inspection of the aircraft original 
parts. Particular attention should be given to the following areas: 
 
(1) The rudder spar at each of the rudder-fin hinges 
(2) Both main landing gear (especially the actuating tube at the weld) 
(3) The elevator torque tube fittings 
(4) The hull fuel cells (for evidence of deterioration) 
 
Any Republic Model RC-3 parts which may have been altered must be substantiated 
by the applicant to the controlling region of the Republic Model RC-3 aircraft. 
For information concerning the United Consultants Model UC-1 modification contact 
the controlling region of the United Consultants Model UC-1 aircraft. 
 
Equipment The basic required equipment as prescribed in the applicable airworthiness 
regulations (see Certification Basis) must be installed in the aircraft for certification. 
In addition, the following items of equipment are required: 
 
(a) FAA approved Airplane Flight Manual 
 
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 the time of original certification. The certificated empty weight and 
corresponding center of gravity location must include unusable fuel (included in main 
tank capacity) of 9 lb. at (+116.0”) and system oil (not included in oil capacity) of 4 lb. 
at (+101.9”) 
 
NOTE 2. All placards required in the FAA approved airplane flight manual must be installed 
in the appropriate locations. 
 
NOTE 3. Airworthiness Directive 53-23-3 must be compiled with for original certification and at 
the repetitive intervals as stated in the Airworthiness Directive. 
 
 
 
...END...
```

## ADs (1, in force first)

- [AD 2022-03-15](https://openairdocs.org/ad/2022-03-15): Fuel Quantity Indicator · Garmin G3X Touch Electronic Flight Instrument System (STC SA01899WI or SA02658SE). Effective Mar 21, 2022

## Registered aircraft by registry model (OpenAirDocs)

- [Stol UC-1](https://openairdocs.org/model/stol-uc-1): 8 aircraft (registry code 8640202)
- [United Consultants UC-1](https://openairdocs.org/model/united-consultants-uc-1): 1 aircraft (registry code 9220102)

## STCs approved under this data sheet (57, first 50)

- [STC SA02571SE](https://openairdocs.org/stc/SA02571SE): Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display).. Garmin International Inc.
- [STC SA12406WI](https://openairdocs.org/stc/SA12406WI): Installation of a Garmin AXIS Flight Display System. Garmin International Inc.
- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [STC SA02636SE](https://openairdocs.org/stc/SA02636SE): Installation of Garmin GPS 175 Navigation System and GNX 375 Navigation System with ADS-B In/Out Transponder.. Garmin International Inc.
- [STC SA02019SE-D](https://openairdocs.org/stc/SA02019SE-D): Installation of Garmin Model GTN 625/635/650; 725/750 Navigation System. Garmin International Inc.
- [STC SA02738CH](https://openairdocs.org/stc/SA02738CH): Installation of L-3 Communications Avionics Systems. Acron Aviation Inc.
- [STC SA04046CH PAGE 2](https://openairdocs.org/stc/SA04046CH%20PAGE%202): Installation of L-3 GENESIS  (TM) Electronic Standby Instrument System (ESI-500/MAG-500). Acron Aviation Inc.
- [STC SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC
- [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc.
- [STC SA02019WI](https://openairdocs.org/stc/SA02019WI): Installation of the Trig Avionics TX56, TX56A, TX57, or TX57A VHF Nav-Com Radio.. Peregrine
- [STC SA00756DE](https://openairdocs.org/stc/SA00756DE): Installation of Automatic Dependent Surveillance  Broadcast (ADS-B) Out Equipment using a Trig Avionics TT22 Transponder and an approved Global Positioning System (GPS) Position Sensor. Peregrine
- [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc.
- [STC SA02444AK](https://openairdocs.org/stc/SA02444AK): Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed. ADS-B Technologies LLC
- [STC SA01818WI](https://openairdocs.org/stc/SA01818WI): Installation of Garmin G5 Electronic Flight Instrument. Garmin International Inc.
- [STC SA11174SC PAGE 2](https://openairdocs.org/stc/SA11174SC%20PAGE%202): Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems. Honeywell International Inc (Bendix King)
- [STC SA00401BO](https://openairdocs.org/stc/SA00401BO): Installation of a SkyTrax100B UAT receiver. Avidyne Corporation
- [STC SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc
- [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation
- [STC SA01714WI](https://openairdocs.org/stc/SA01714WI): Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R with ADS-B Out functionality in select airplanes installed with G950/G1000 systems.. Garmin International Inc
- [STC SA00744DE](https://openairdocs.org/stc/SA00744DE): Installation of the Automatic Dependent Surveillance  Broadcast (ADS-B) Out Equipment using a Trig Avionics TT31 Transponder and an approved position sensor. Peregrine
- [STC SA00765DE](https://openairdocs.org/stc/SA00765DE): Installation of Automatic Dependent Surveillance  Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensor. Peregrine
- [STC SA02153LA-D PAGE 2](https://openairdocs.org/stc/SA02153LA-D%20PAGE%202): Installation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) System. Garmin International Inc.
- [STC SA01835WI](https://openairdocs.org/stc/SA01835WI): Installation of Trig Avionics TY-96 or TY-97 VHF Communications Radio. Peregrine
- [STC SA00024NY](https://openairdocs.org/stc/SA00024NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K007 on single or multi-engine fixed wing light aircraft incorporating Lycoming reciprocating engines of 450 horsepower or less.. Airwolf Filter Corporation
- [STC SA00382BO](https://openairdocs.org/stc/SA00382BO): Installation of Globalstar Antenna and Cradle provisions to support a Globalstar GPS-1700 in non-composite airplanes. Avidyne Corporation
- [STC SA02428SE](https://openairdocs.org/stc/SA02428SE): Installation of an Air Stream Switch for an electric time recording device on non-pressurized aircraft. Henry F Rogers/David E Polley
- [STC SA00343BO](https://openairdocs.org/stc/SA00343BO): Installation of a single configuration or a dual configuration Avidyne Corporation Integrated Flight Display, Model IFD540 loaded with Release 10.0 software (or later FAA approved release). Avidyne Corporation
- [STC SA00352BO PAGE 2](https://openairdocs.org/stc/SA00352BO%20PAGE%202): Installation of an Avidyne Corporation Mode A/C/S Transponder with ADS-B Out capability, Model AXP340 loaded with Version 3.13 software (or later FAA approved version),. Avidyne Corporation
- [STC SA02119SE PAGE 2](https://openairdocs.org/stc/SA02119SE%20PAGE%202): Installation of Garmin GDL 88 ADS-B UAT Transceiver System. Garmin International Inc
- [STC SA02442AK PAGE 2](https://openairdocs.org/stc/SA02442AK%20PAGE%202): Approval of the L-3 Communications NGT 2000/2500 ADS-B system. ADS-B Technologies, LLC
- [STC SA02930NY](https://openairdocs.org/stc/SA02930NY): Installation of Insight Instrument Corporation Graphic Engine Monitor (GEM 610C) models G3, G2, and G1 and 1200C model G4 as primary Cylinder Head Temperature (CHT), Exhaust Gas Temperature (EGT), and Turbine Inlet Temperature (TIT) Instruments. Insight Instrument Corporation
- [STC SA02283SE PAGE 2](https://openairdocs.org/stc/SA02283SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P. Electronics International Inc.
- [STC SA02402SE PAGE 2](https://openairdocs.org/stc/SA02402SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C. Electronics International Inc.
- [STC SA02121SE](https://openairdocs.org/stc/SA02121SE): Installation of Garmin GTS 825 (TAS) or GTS 855 (TCAS I) Traffic System. Garmin International Inc
- [STC SA02015SE-D](https://openairdocs.org/stc/SA02015SE-D): Installation of Garmin G500 Primary Flight Display (PFD) and Multifunction Display (MFD) System.. Garmin International Inc
- [STC SA02018SE-D](https://openairdocs.org/stc/SA02018SE-D): Provisions installation of Garmin GPS/XM Antennas in accordance with FAA Approved Model List (AML) SA02018SE-D, dated January 4, 2011, or later FAA approved revision, and FAA Approved GPS/XM Antenna STC Master Drawing List, Document No.: 005-00638-01, Revision 1 , approved on January 4, 2011, or later FAA approved revision.. Garmin International Inc
- [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories.. Electronics International Inc.
- [STC SA01988SE](https://openairdocs.org/stc/SA01988SE): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) MVP-50P.. Electronics International Inc.
- [STC SA563CH](https://openairdocs.org/stc/SA563CH): Authorizes installation of engines equipped w/Unison Limited Authority Spark Advance Regulator (LASAR) ignition system w/Cylinder Head Temp. (CHT) monitoring capability on airframes. engines.. Champion Aerospace LLC
- [STC SA593CH](https://openairdocs.org/stc/SA593CH): Install Champion SlickSTART magneto booster system.. Champion Aerospace LLC
- [STC SA02033AT](https://openairdocs.org/stc/SA02033AT): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line.. M-20 Oil Separators LLC
- [STC SA00680SE](https://openairdocs.org/stc/SA00680SE): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.. Electronics International
- [STC SA02520AT](https://openairdocs.org/stc/SA02520AT): Installation of M-20 Oil Separator, model 600-WP.. M-20 Oil Separators LLC
- [STC SA157NE](https://openairdocs.org/stc/SA157NE): Installation of Graphic Engine Monitor System Model GEM-602 S/N 403 and GEM-603 S/N001126and subsequent.. Insight Instrument Corp
- [STC SA3205SO](https://openairdocs.org/stc/SA3205SO): Installation of Appalachian stainless steel brake discs.. Aviation Products, Inc
- [STC SA00462AT](https://openairdocs.org/stc/SA00462AT): Replacement of Appalachian stainless steel brake discs P/N 75-23 with Appalachian steel brake disk part number AA-47.. Aviation Products, Inc
- [STC SA1626NM PAGE 2](https://openairdocs.org/stc/SA1626NM%20PAGE%202): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International
- [STC SA5159NM](https://openairdocs.org/stc/SA5159NM): Installation of chip detector system.. Northwest Aircraft Inc
- [STC SA300CE](https://openairdocs.org/stc/SA300CE): Installation of Woodward propeller governors on single and twin engine aircraft. (PA-31-325 modified per Colemill STC SA 970SO). Woodward Governor Company
- [STC SA2350NM PAGE 2](https://openairdocs.org/stc/SA2350NM%20PAGE%202): Installation of Electronics International Inc digital carburetor/outside air temperature gauges. Electronics International

All 57: https://openairdocs.org/tcds/A6EA/stcs.md

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