# TCDS G4EA: K & L Soaring LLC

- Type: Type certificate data sheet
- Status: Current
- Holder: K & L Soaring LLC
- Revision: 9
- Revised: November 29, 2010
- Product: Aircraft, Glider
- Certification basis: Part 21, Part 23
- Registered aircraft: 56, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/de/e6/dee622f7987eb399eb76eb1299cab53d98f575dbfbfafa180c68a9f81701d1e9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/82692BF621C5F2788625780E005E104E.0001
- Page: https://openairdocs.org/tcds/G4EA

## Models (3)

As the data sheet lists them.

- SGS 1-35A
- SGS 1-35
- SGS 1-35C

## 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. 9 9 7 
 
 
DEPARTMENT OF TRANSPORTATION 
FEDERAL AVIATION ADMINISTRATION 
G4EA 
 Revision No. 9 
 K & L Soaring, LLC 
SGS 1-35 
SGS 1-35C 
SGS 1-35A 
November 29, 2010 
 
TYPE CERTIFICATE DATA SHEET NO. G4EA 
 
This data sheet which is a part of type certificate No. G4EA prescribes conditions and limitations under which the product for 
which the type certificate was issued meets the airworthiness requirements of the Federal Aviation Regulations. 
 
Type Certificate Holder K & L Soaring, LLC  
  5996 State Route 224  
  Cayuta, New York  14824  
 
Type Certificate Holder Record Schweizer Aircraft Corporation 
  County Airport 
  P.O. Box 147 
  Elmira, New York  14902 
 
I - Model SGS 1-35, 1 PCLM, (Utility and High Performance) Approved April 25, 1974 
II - Model SGS 1-35C, 1 PCLM (High Performance) Approved June 10, 1976 (Notes 1, 2, 3, 5, 6, 7) 
 
 Airspeed limits Va (Mane uvering) 88 m.p.h. (77 knots) 
 (CAS) Vlo (Gear Operating) 139 m.p.h. (121 knots) 
  Vne (Glide or Dive) 139 m.p.h. (121 knots) 
  Vta (Airplane tow, flaps -8° to +18° 99 m.p.h. (86 knots) 
  Vfe (Flaps Extended) 99 m.p.h. (86 knots) 
  Vfu (Flaps 0° to -8°) 139 m.p.h. (121 knots) 
 
III - Model SGS 1-35A, 1 PCLM, (High Performance and Utility) Approved April 17, 1978, (Notes 1, 2, 3, 5, 8) 
 
 Airspeed limits Va (Mane uvering) 88 m.p.h. (77 knots) 
 (CAS) Vlo (Gear Operating) 139 m.p.h. (121 knots) 
  Vne (Glide or Dive) 139 m.p.h. (121 knots) 
  Vta (Airplane tow flaps -7° to +14°) 99 m.p.h. (86 knots) 
  Vfe (Flaps Extended) 99 m.p.h. (86 knots) 
  Vfu (Flaps 0° to -7°) 139 m.p.h. (121 knots) 
 
Specifications Pertinent to All Models 
 
 Center of Gravity 
 (C.G. Range) 
 Category Weight Forw ard C.G. Aft. C.G. 
 
 High Performance 660 lb. & 685 lb. *Sta. 75.28 in. (25%) Sta. 78.90 in. (38.5%) 
  (NOTE 3) **Sta. 76.09 in. (28%) Sta. 78.90 in. (38.5%) 
   *Sta. 75.28 in. (25%) Sta. 77.56 in. (33.5%) 
 
 Utility 930 lb. (Note 7) **Sta. 76.09 in. (28%) Sta. 77.56 in. (33.5%) 
   *Limits for aircraft with fixed horizontal tail surfaces and double-spring trim  
   system. 
   **Limits for aircraft with demountable  horizontal tail surfaces and either single- 
   spring or double-spring trim system and 35192R integration system. 
   Straight line variation between points given.

G4EA                                                                                     2 
______________________________________________________________________________________________________ 
 
660
685
930
10.1 10.9 12.4
(See Note 4)
13.7
In. Aft of Datum
G.W.
(lb.)
Fixed horizontal
tail
Removable
horizontal tail
Utility
High Performance
(See Note 3)
 
 Empty Weight C.G. Range None. 
 
 Datum Wing leading edge at root (F uselage Sta. 65.16, Wing Sta. 11.4) 
 
 Mean Aerodynamic Chord 26.8 in. (Leading edge of MAC 3.41 in. aft of wing leading edge at root.) 
 
 Leveling means See aircraft weight a nd balance data in aircraft log book. 
 
 Maximum Weight Utility 
  Takeoff 930 lb. (Includes 161.5 lb. (19.3 ga l.) in each water ballast tank.) (NOTE 7) 
  Landing 685 lb. (NOTE 3.) 
  High Performance 
  Takeoff and Landing 685 lb. (NOTE 3.) 
 
 Water Ballast Utility 
  One tank each wing; 161.5 lb./tank (NOTE 7) 
  High Performance 
  None. 
 
 No. of Seats 1 (-8.2) 
 
 Baggage None. 
 
 Control Surface Elevator 21° up 18° down 
 Movements (Min) Rudder 27° left 27° right 
  *Aileron 26° up 14° down 
  Flap 8° up 80° down 
  Flap 7° up 80° down (SGS 1-35A only) 
  *Integration System Not Installed 
 
   Aileron Travel with 35192R 
   Integration System Installed 
Flap Setting Aileron Travel 
-8 28° up  0° down 
  0 26° up 10° down 
+6 18° up 12° down 
 
 Serial No. Eligible 1 and up (NOTE 6) 
 
 Certification Basis FAR 21, effective February 1, 1965, including Amendment 21-1 through 21-38.  FAR  
  23, effective February 1, 1965, including Amendment 23-1 through 23-12. 
  Basic Glider Handbook dated 1962. 
  Glider Type Certificate No. G4EA, dated April 25, 1974. 
  Date of Application for Type  Certificate, September 25, 1972. 
 
  
        Production basis None

3 G4EA 
       Equipment: The basic equipment as prescribed in  the applicable airworthiness regulations (See Certification 
   Basis) must be installed in the glider for certification.  In addition, the following items are  
  required: 
  FAA Approved Sailplane Flight Manual, including: 
  1. Supplement No. 1 - dated March 4, 1976 (NOTE 5) 
   Supplement No. 2, Revision 1 - dated March 3, 1977 (NOTE 6) 
   Supplement No. 3, - dated April 17, 1978 (NOTE 8) 
   Supplement No. 4, - dated April 23, 1979 (NOTE 14) 
  2. Outside Air Temperature Gage (NOTE 7) 
  3. Revision 1 - dated October 11, 1974 (NOTE 9) 
  4. Revision 3 - dated September 5, 1975 (NOTE 11) 
  5. Revision 2 - dated April 30, 1975 (NOTE 10) 
  6. Revision 4 - dated January 9, 1978 (NOTE 12) 
  7. Revision 5 - dated October 16, 1978 (NOTE 13) 
 
NOTE 1. A suitable placard to cover the maximum and minimum pilot weights must be installed in full view of the  
 pilot as determined from the manufact urer's weight and balance report. 
 
NOTE 2. All placards required in the Approved Sailplane Flight Manual must be installed in the appropriate 
 locations. This sailplane must be operated as a Hi gh Performance or Utility Type Sailplane in compliance 
 with the approved Sailplane Flight Manual.  All marki ngs and placards in this sailplane apply to operation  
 as a High Performance sailplane.  For Utility operation refer to Sailplane Flight Manual. 
 
NOTE 3. High performance category gross weight of 685 lb. is approved for aircraft having wing panels weighing 
 124 lb. each.  Applicable to S/N 1 and subsequent.  See Wt.  & Balance Form (I-4636-2) for wing panel  
 weight.  Maximum landing weight of 685 lb. is approved for all aircraft. 
 
NOTE 4. C.G. forward limit, in both high performance and u tility categories, of + 10.1 in. (25% MAC) is approved  
 For aircraft with fixed horizontal tail surface and double spring trim system. 
 
NOTE 5. With Aileron Integration System  installed, Schweizer Airplane Flight Manual Supplement No. 1 "Integrated  
 Flap-Aileron Control System" required, dated March 4, 1976. 
 
NOTE 6. Model SGS 1-35C, Serial No. 59 and up, Schweizer Sailplane Flight Manual Supplement No. 2, (Revision 1 
dated March 3, 1977, required). 
 
NOTE 7. Model SGS 1-35C - outside air temperature gage  not required as the model has no provision for water  
 ballast.  Therefore eligible for high performance operation only. 
 
NOTE 8. Model SGS 1-35A - Serial No. 60 and up, Schweizer  Sailplane Flight Manual Supplemental No. 3 required, 
 dated April 17, 1978. 
 
NOTE 9. Model SGS 1-35 - added airspeed limits in knots, added to incorporate aft static system (Revision 1 to  
 Sailplane Flight Manual, da ted October 11, 1974, required). 
 
NOTE 10. Model SGS 1-35 - for aircraft with de mountable horizontal tail surfaces, changed forward CG limit from                           
Sta. 75.28 (25%) to Sta. 76.09 (28%) - (Revision 2 to Sailplane Flight Manual, dated April 30, 1975,  
 demountable horizontal tail optional). 
 
NOTE 11. Model SGS 1-35 - added information pertinent to increase of gross weight to 685 lb. for high performance  
 category (Revision 3 to Sailplane Flight Manual,  dated September 5, 1975, information required). 
 
NOTE 12. Model SGS 1-35 - added indicated vs calibrate d airspeed corrections for 35040G/35044G longer nose cap  
 installation (Revision 4 to Sailplane Flight Manual,  dated January 4, 1978, nose cap installation optional). 
 
NOTE 13. Model SGS 1-35 - added footnote 1/  with references, relative to SGS 1-35 with fixed main landing gear  
 (Revision 5 to Sailplane Flight Manual, dated October 16, 1978, fixed gear optional). 
 
NOTE 14. Model SGS 1-35 - recommended bail-out procedure w/(optional) forward hinged canopy Supplement No. 4  
 dated April 23, 1979). 
 
...END...
```

## ADs (2, in force first)

- [AD 87-17-01](https://openairdocs.org/ad/87-17-01): Tow Release Installation · K & L Soaring SGS 1-23, SGS 1-23D, SGS 1-23F and 25 more. Effective Aug 19, 1988
- [AD 87-02-01](https://openairdocs.org/ad/87-02-01): Tow-Release Installation Inspection · K & L Soaring SGM 2-37, SGS 1-23, SGS 1-23D and 32 more. Effective Jan 21, 1987

## Registered aircraft by registry model (OpenAirDocs)

- [Schweizer SGS 1-35](https://openairdocs.org/model/schweizer-sgs-1-35): 28 aircraft (registry code 8050148)
- [Schweizer SGS 1-35C](https://openairdocs.org/model/schweizer-sgs-1-35c): 26 aircraft (registry code 8050151)
- [Schweizer SGS 1-35A](https://openairdocs.org/model/schweizer-sgs-1-35a): 2 aircraft (registry code 8050149)

## STCs approved under this data sheet (2)

- [STC SA01734SE](https://openairdocs.org/stc/SA01734SE): Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts.. Andrew D. Humphrey
- [STC SG01164CH](https://openairdocs.org/stc/SG01164CH): Install Cooper superflite 102 fabric.. Aviation Products Systems Inc.

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