# TCDS G47EU: Alexander Schleicher GmbH & Co. Segelflugzeugbau

- Type: Type certificate data sheet
- Status: Current
- Holder: Alexander Schleicher GmbH & Co. Segelflugzeugbau
- Revision: 4
- Revised: June 12, 2023
- Product: Aircraft, Glider
- Certification basis: Part 21, Part 21
- Registered aircraft: 81, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/da/bd/dabddf44f72fca6c7772dca1c25c27d38dcce2eec2a501f83bdaaac15e63989f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116750387520230612144605.0001
- Page: https://openairdocs.org/tcds/G47EU

## Models (3)

As the data sheet lists them.

- ASK 21
- ASK 21 B
- ASK 21 Mi

## 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 4 5 6 7 8 9 
Rev. No. 4 3 2 2 3 4 4 4 4 
 
DEPARTMENT OF TRANSPORTATION 
FEDERAL AVIATION ADMINISTRATION 
 
G47EU 
Revision 4 
Alexander Schleicher GmbH 
ASK 21 
ASK 21 B 
ASK 21 Mi 
June 12, 2023 
 
TYPE CERTIFICATE DATA SHEET NO. G47EU 
 
This data sheet which is a part of Type Certificate No. G47EU 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. Alexander Schleicher GmbH & Co. Segelflugzeugbau 
Alexander-Schleicher-Str. 1 
36163 Poppenhausen 
Germany 
 
 
I. - Model ASK 21 Glider, Utility and Aerobatic Category, approved October 18, 1983. 
 
Description. The ASK 21 is a two-seat, mid-winged, all composite glider with a T-shaped tail, a 56 ft 
(17 m) wingspan, and airbrakes on the upper wing surface.  It has a non-retractable 
landing gear with a nose wheel and a shock-absorbing, braked main wheel. 
 
Airspeed Limits (I.A.S.). mph km/h kts 
VNE (Never exceed) 174 280 151 
VB (In rough air) 124 200 108 
VA (Maneuvering) 112 180 97 
Air Brakes 174 280 151 
VT (Aero tow) 112 180 97 
VW (Winch tow) 93 150 81 
 
C.G. Range. 9.2 to 18.4 in (234 to 469 mm) aft of datum 
 
Empty Weight C.G. See Section 6 of the ASK 21 Flight Manual 
 
Datum. Wing leading edge of the straight center part of the wing 
 
Leveling Means. Wedge on the rear top edge of fuselage 1000:52 horizontal 
 
Maximum Weight. 1323 lbs (600 kg)  
 
Minimum Crew. One pilot 
 
No. of Seats. Two seats 
Front seat: 46.6 to 49.2 in (1185 to 1250 mm) forward of datum 
Rear seat: 3.1 in (80 mm) forward of datum 
 
Maximum Baggage. 2 times 22 lbs (2 x 10 kg) at 7.9 in (200 mm) behind datum. 
 
Control Surface Movements. Aileron Up: 4.33 ± 0.40 in (110 ± 10 mm) 
Down: 1.80 ± 0.20 in (45 ± 5 mm) 
Distance from hinge line = 9.45 in (240 mm) 
 
Elevator Up: 3.50 ± 0.20 in (90 ± 5 mm) 
Down: 2.56 ± 0.20 in (65 ± 5 mm)

G47EU 2  
 
Distance from hinge line = 9.06 in (230 mm) 
 
Rudder Right / Left 7.10 ± 0.80 in (180 ± 20 mm)  
Distance from hinge line = 14.80 in (375 mm) 
 
Airbrakes gap 1.0 to 1.3 in (25 to 35 mm) 
 
Weak Link. Ultimate strength: For winch launch  Max 1870 lbs (850 daN) 
For aero tow Max 1320 lbs (600 daN) 
 
Tow release: Both releases connected Max 26 lbs (12.5 daN) 
 
Serial Nos. Eligible. See Import Requirements. 
 
Certification Basis. Based on the Special Class provisions of Title 14 Code of Federal Regulations (CFR) 
Part 21, § 21.17(b), the following airworthiness requirements form the FAA Certification 
Basis for this design: 
1) 14 CFR Part 21, effective February 1, 1965 including Amendments 21-1 through 21-
53, as applicable; 
2) Airworthiness Requirements for Sailplanes and Powered Sailplanes – (LFSM), dated 
October 23, 1975; 
3) Advisory Circular 21.23-1, Section 5(e)(6), dated January 12, 1981; 
4) Joint Airworthiness Requirements for Sailplanes and Powered Sailplanes (JAR-22), 
dated April 1, 1980, including Amendment No. 1, dated May 18, 1981; 
5) Date of Application for Type Certificate: October 1, 1982. 
6) The following kinds of operation are allowed:  
- VFR - Day  
- “Cloud Flying” (if properly equipped, see NOTE 8) 
 
The German Airworthiness Authority, the Luftfahrt-Bundesamt (LBA) originally type 
certificated this glider under its Type Certificate (TC) No. 339, issued April 18, 1980.  
Effective March 4, 2008, the European Aviation Safety Agency (EASA) began oversight 
of this model and the LBA TCDS was transferred to EASA.  The EASA Type Certificate 
No. is EASA.A221. 
 
Import Requirements. A U.S. Standard Airworthiness Certificate may be issued on the basis of an Export 
Certificate of Airworthiness (Export C of A) signed by a representative of the German 
Airworthiness Authority (LBA), on behalf of the European Community.  The Export C of 
A should contain the following statement: "The glider covered by this certificate has been 
examined, tested and found to conform to the type design approved under FAA Type 
Certificate G47EU and is in condition for safe operation." 
 
Serial numbers 21 131, 21 174 and 21 179 are eligible for a United States Standard 
Airworthiness Certificate when modified in accordance with LBA approved Alexander 
Schleicher ASK 21 Technical Note No. 9, dated February 24, 1983, and when other 
import requirements of this TCDS are satisfied. 
 
Refer to the applicable bilateral agreement to verify eligibility for import into 
the United States of both new and used aircraft based on the scope of the 
agreement, to identify any required statements by the exporting authority on the 
export certificate of airworthiness (or equivalent document), and for procedures 
for coordinating exceptions to conformity statements on these documents. Refer 
to FAA Order 8130.2, Airworthiness Certification of Aircraft, for requirements 
for issuance of an airworthiness certificate for imported aircraft. 
 
Equipment. The basic required equipment as prescribed in the applicable airworthiness regulations 
(see Certification Basis) must be installed in the glider for certification.  Also, see NOTE 
7.  In addition, the ASK 21 Flight Manual, LBA-approved dated March 1, 1983 is 
required.

G47EU 3  
 
Service Information. Each of the documents listed below must state that it is approved by the EASA or – for 
approvals made before March 4, 2008 – by the German Airworthiness Authority (LBA):  
• Service bulletins 
• Structural repair manuals 
• Vendor manuals 
• Aircraft flight manuals 
• Overhaul and maintenance manuals 
 
The FAA accepts such documents and considers them FAA-approved for type design 
data only unless one of the following conditions exists: 
• The documents change the limitations, performance, or procedures of the FAA 
approved manuals.  
 
The FAA uses post type validation procedures to approve these documents.  The FAA 
may delegate on a case-by-case basis to EASA to approve these on behalf of the FAA for 
the U.S. type certificate.  If this is the case, it will be noted on the document.  
 
ASK 21 Operating and Service Instructions: 
1) Flight Manual, Issue March 9, 1983, or later approved revision. 
2) Maintenance Manual, Issue March 9, 1983, or later approved revision. 
 
NOTES. 
 
NOTE 1. Current weight and balance report including list of equipment in certificated empty weight, and loading 
instructions, when necessary, must be provided for each glider at the time of original certification. 
 
NOTE 2. The placards listed in Section II of the ASK 21 Flight Manual must be displayed. 
 
NOTE 3. Section 5 of the ASK 21 Maintenance Manual, is FAA- approved and it specifies mandatory replacement 
times, and structural repair procedures.  These airworthiness limitations may not be changed without FAA 
approval. 
 
NOTE 4. All external portions of the glider exposed to sunlight must be painted with white gelcoat.  Wing tips, nose of 
fuselage and rudder may be painted with an additional color. 
 
NOTE 5. Information essential for the proper operation, maintenance and inspection of the glider is contained in the 
ASK-21 Flight Manual, and Maintenance Manual.  
 
NOTE 6. Major structural repairs must be accomplished by a properly certificated mechanic in accordance with data 
approved by the FAA. 
 
NOTE 7. The approved flight and navigation instruments, for all types of operations for the Model ASK-21 are listed 
on page 8 of the ASK-21 Flight Manual dated March 9, 1983. 
 
NOTE 8. “Cloud Flying” is considered flying in Instrument Meteorological Conditions (IMC) and requires an 
Instrument Flight Rules (IFR) clearance in the U.S.  This is permissible in the U.S. provided the pilot has the 
appropriate rating per 14 CFR 61.3, the glider contains the necessary equipment specified under 14 CFR 
91.205, and the pilot complies with IFR requirements. 
 
 
II. - Model ASK 21 B Glider, Utility and Aerobatic Category, approved July 3, 2019.  
 
Description. The ASK 21 B is a two-seat, mid-winged, all composite glider with a T-shaped tail, a 56 
ft (17 m) wingspan, and airbrakes on the upper wing surface.  It has a non-retractable 
landing gear with a nose wheel and a shock-absorbing, braked main wheel. 
 
Airspeed Limits (I.A.S.). mph km/h kts 
VNE (Never exceed) 174 280 151 
VB (In rough air) 124 200 108 
VA (Maneuvering) 112 180 97 
Air Brakes 174 280 151

G47EU 4  
 
VT (Aero tow) 112 180 97 
VW (Winch tow) 93 150 81 
 
C.G. Range. 9.2 to 18.4 in (234 to 469 mm) aft of datum 
 
Empty Weight C.G. See Section 6 of the ASK 21 B Flight Manual 
 
Datum. Wing leading edge at the wing root rib 
 
Leveling Means. Wedge on the rear top edge of fuselage 1000:52 horizontal 
 
Maximum Weight. 1323 lbs (600 kg)  
 
Minimum Crew. One pilot 
 
No. of Seats. Two seats 
Front seat: 4 4.88 to 48.82 in (1140 to 1240 mm) forward of datum 
Rear seat: 1.18 to 3.54 in (30 to 90 mm) forward of datum 
 
Maximum Baggage. 22 lbs (10 kg) at 9.84 in (250 mm) behind datum. 
 
Control Surface Movements. Aileron Up: 5.51 ± 0.39 in (140 ± 10 mm) 
Down: 2.05 ± 0.20 in (52 ± 5 mm) 
Distance from hinge line = 9.45 in (240 mm) 
 
Elevator Up: 3.54 ± 0.20 in (90 ± 5 mm) 
Down: 2.56 ± 0.20 in (65 ± 5 mm) 
Distance from hinge line = 9.06 in (230 mm) 
 
Rudder Right / Left: 7.09 ± 0.79 in (180 ± 20 mm) 
Distance from hinge line = 14.76 in (375 mm) 
 
Airbrakes gap 0.98 to 1.38 in (25 to 35 mm) 
 
Weak Link. Ultimate strength: For winch launch  Max 2248 lbs (1000 daN ± 10%) 
For aero tow Max 2248 lbs (600 daN ± 10%) 
 
Serial Nos. Eligible. 21954 and up.  See Import Requirements. 
 
Certification Basis. Based on the Special Class provisions of Title 14 Code of Federal Regulations (CFR) 
Part 21, § 21.17(b), the following airworthiness requirements form the FAA Certification 
Basis for this design: 
1) 14 CFR Part 21, effective February 1, 1965, including Amendments 21-1 through 
21-53, as applicable; 
2) Airworthiness Requirements for Sailplanes and Powered Sailplanes – (LFSM), 
issued October 23, 1975; 
3) Joint Airworthiness Requirements for Sailplanes and Powered Sailplanes (JAR-22), 
dated April 1, 1980, including Amendment 1, dated May 18, 1981; 
4) Certification Specification for Sailplanes and Powered Sailplanes (CS-22), 
Amendment 2, dated March 5, 2009 for the following regulations: 22.147, 22.455, 
22.477, 22.561 except (b)(2), 22.595, 22.597, 22.629, 22.677, 22.685, 22.689, 
22.721, 22.771, 22.773, 22.777, 22.779, 22.780, 22.781, 22.785, 22.786, 22.787, 
22.788, 22.807, 22.831; 
5) Advisory Circular 21.23-1, Section 5(e)(6), dated January 12, 1981; 
6) The following kinds of operation are allowed:  
- VFR - Day  
- “Cloud Flying” (if properly equipped, see NOTE 8); 
7) Date of application for FAA Type Certificate: August 16, 2018. 
8) EASA type certificated this glider model under its Type Certificate No. 
EASA.A.221 on August 9, 2018. 
 
Production Basis. Alexander Schleicher GmbH & Co. Segelflugzeugbau

G47EU 5  
 
Alexander-Schleicher-Straße 1 
D-36163 Poppenhausen, Germany 
EASA Production Organization Approval Number:  DE.21G.0010 
 
Import Requirements. A U.S. Standard Airworthiness Certificate may be issued on the basis of an Export 
Certificate of Airworthiness (Export C of A) signed by a representative of the German 
Airworthiness Authority (LBA), on behalf of the European Community.  The Export C of 
A should contain the following statement: "The glider covered by this certificate has been 
examined, tested and found to conform to the type design approved under FAA Type 
Certificate G47EU and is in condition for safe operation." 
 
Refer to the applicable bilateral agreement to verify eligibility for import into 
the United States of both new and used aircraft based on the scope of the 
agreement, to identify any required statements by the exporting authority on the 
export certificate of airworthiness (or equivalent document), and for procedures 
for coordinating exceptions to conformity statements on these documents. Refer 
to FAA Order 8130.2, Airworthiness Certification of Aircraft, for requirements 
for issuance of an airworthiness certificate for imported aircraft. 
 
Equipment. The basic required equipment as prescribed in the applicable airworthiness regulations 
(see Certification Basis) must be installed in the glider for certification.  Also, see NOTE 
7.  In addition, a copy of the ASK 21 B Flight Manual, dated November 23, 2018 is 
required.  
 
Service Information. Each of the documents listed below must state that it is approved by EASA:  
• Service bulletins 
• Structural repair manuals 
• Vendor manuals 
• Aircraft flight manuals 
• Overhaul and maintenance manuals 
 
The FAA accepts such documents and considers them FAA-approved for type design 
data only unless one of the following conditions exists: 
• The documents change the limitations, performance, or procedures of the FAA 
approved manuals.  
 
The FAA uses post type validation procedures to approve these documents.  The FAA 
may delegate on a case-by-case basis to EASA to approve these on behalf of the FAA for 
the U.S. type certificate.  If this is the case, it will be noted on the document.  
 
ASK 21 B Operating and Service Instructions: 
1) Flight Manual, Issue November 23, 2018, or later approved revision. 
2) Maintenance Manual, Issue June 15, 2018, or later approved revision. 
 
NOTES. 
 
NOTE 1. Current weight and balance report including list of equipment in certificated empty weight, and loading 
instructions, when necessary, must be provided for each glider at the time of original certification. 
 
NOTE 2. The placards listed in Section 2 of the ASK 21 B Flight Manual must be displayed. 
 
NOTE 3. Section 4 of the ASK 21 B Maintenance Manual, titled “Airworthiness Limitations”, is FAA- approved, and 
specifies mandatory replacement times, structural inspection intervals, and related procedures.  These 
Airworthiness Limitations may not be changed without FAA approval. 
 
NOTE 4. All external portions of the glider exposed to sunlight must be painted with white gelcoat.  Wing tips, nose of 
fuselage and rudder may be painted with an additional color. 
 
NOTE 5. Information essential for the proper operation, maintenance and inspection of the glider is contained in the 
ASK-21 B Flight Manual, and Maintenance Manual.

G47EU 6  
 
NOTE 6. Major structural repairs must be accomplished by a properly certificated mechanic in accordance with data 
approved by the FAA. 
 
NOTE 7. The manufacturer’s approved minimum equipment for all types of operations are listed in Section 2.11 of the 
ASK 21 B Flight Manual.   
 
NOTE 8. “Cloud Flying” is considered flying in Instrument Meteorological Conditions (IMC) and requires an 
Instrument Flight Rules (IFR) clearance in the U.S.  This is permissible in the U.S. provided the pilot has the 
appropriate rating per 14 CFR 61.3, the glider contains the necessary equipment specified under 14 CFR 
91.205, and the pilot complies with IFR requirements. 
 
 
III. - Model ASK 21 Mi Self-Launching (Powered) Glider, Utility Category, approved June 12, 2023.  
 
Description. The ASK 21 Mi is a two-seat, mid-wing, self-launching, all composite glider with a 
retractable engine and fixed pitch propeller mounted in the center fuselage behind the 
cockpit.  It has a 56 ft (17 m) wingspan and airbrakes on the upper wing surface.  The 
glider has a T-shaped tail, a non-retractable landing gear with a steerable nose wheel and 
a hydraulic disc braked main wheel. 
 
Engine. Austro Engine IAE50R-AA 
 
Fuel. AVGAS 100LL preferred.  In the US, fuel grades with a minimum 95 Octane rating 
comply.  Also, EUROSUPER in compliance with EN 228, or equivalent quality.  Only 
fuel without two-stroke oil may be used.   
 
Engine Limits. Takeoff (maximum 3 minutes):  7750 r.p.m. (37.3 kW) 
Continuous Operation:  7100 r.p.m. (35.8 kW) 
 
Propeller and Propeller Limits. Alexander Schleicher GmbH & Co. AS2F1-1/R153–92–N1 
 Diameter 47.2 to 59.1 in (1200 to 1550 mm) 
2 right-hand turning blades 
Fixed pitch at 0.75 blade radius:  23.6 to 47.2 in (600 to 1200 mm) 
 
Airspeed Limits (I.A.S.). mph km/h kts 
VNE Never exceed 174 280 151 
VRA Rough air 112 180   97 
VA Maneuvering 112 180 97 
VW Winch tow 93 150 81 
VT Aero tow 112 180 97 
VPOmax Max extend/retract propeller 75 120 65 
VPOmin Min extend/retract propeller 56 90 49 
VPE Max with propeller extended 99 160 86 
 
VNE Speed Limit High Altitude: 
Altitude MSL (ft) VNE IAS 
mph km/h kts 
0 – 6,500 174 280 151 
< 8,000 170 267 147 
< 12,000 160 2 55 1 39 
< 16,000 150 239 130 
< 20,000 140 226 121 
 
C.G. Range. 9.21 to 18.46 in (234 to 469 mm) aft of datum 
 
Empty Weight C.G. See Section 6 of the ASK 21 Mi Flight Manual 
 
Datum. Wing leading edge at the wing root rib 
 
Leveling Means. Wedge on the rear top edge of fuselage 1000:52 horizontal

G47EU 7  
 
Maximum Weight. Max take-off: 1554 lbs (705 kg) 
Max non-lifting parts: 1124 lbs (510 kg) 
 
Minimum Crew. One pilot.  When operated solo, the pilot must occupy the front seat. 
 
No. of Seats. Two seats 
Front seat: 46.6 to 49.2 in (1185 to 1250 mm) forward of datum 
Rear seat: 3.0 to 3.1 in (77 to 80 mm) forward of datum 
 
Maximum Baggage. 22 lbs (10 kg) total or 11 lbs (5 kg) per side at 9.8 in (250 mm) behind datum. 
 
Fuel Capacity. One fuselage tank of 6.13 gallons at 35.4 in. (23.2 liters at 900 mm);  
0.05 gallons (0.2 liters) non-usable fuel 
 
Oil Capacity. 0.19 gallons (0.73 liters) total; 
0.18 gallons (0.70 liters) usable in-flight; 
0.01 gallons (0.03 liters) non-usable oil 
 
Maximum Operating Altitude. 1 4000 ft (4267 m) MSL with engine running.  See Engine Manual. 
 
Control Surface Movements. Aileron Up: 4.33 ± 0.39 in (110 ± 10 mm) 
Down: 1.77 ± 0.20 in (45 ± 5 mm) 
Distance from hinge line = 9.45 in (240 mm) 
 
Elevator Up: 3.54 ± 0.20 in (90 ± 5 mm) 
Down: 2.56 ± 0.20 in (65 ± 5 mm) 
Distance from hinge line = 9.06 in (230 mm) 
 
Rudder Right / Left: 7.09 ± 0.79 in (180 ± 20 mm) 
Distance from hinge line = 14.76 in (375 mm) 
 
Weak Link. Ultimate strength: For winch launch  Max 2248 lbs (1000 daN) 
For aero tow Max 1911 lbs (850 daN) 
 
Serial Nos. Eligible. Serial numbers 21784 and up are eligible for a U.S. Standard Airworthiness Certificate if 
the Alexander Schleicher GmbH & Co. Segelflugzeugbau Technical Note (TN) No. 21, 
original revision, issued September 21, 2022, or later approved revision, is incorporated, 
and the applicable Import Requirements of this TCDS are satisfied. 
 
Certification Basis. Based on the Special Class provisions of Title 14 Code of Federal Regulations (CFR) 
Part 21, § 21.17(b), the following airworthiness requirements form the FAA Certification 
Basis for this design: 
1) 14 CFR Part 21, effective February 1, 1965, including Amendments 21-1 through 
21-81, as applicable; 
2) Joint Airworthiness Requirements for Sailplanes and Powered Sailplanes (JAR-22), 
Amendment 6, dated August 01, 2001; 
3) “Standards for Structural Substantiation of Sailplanes and Powered Sailplane 
Components Consisting of Glass or Carbon Fibre Reinforced Plastics”, LBA 
document no. I4-FVK/91, issued July 1991.   
4) The following kinds of operation are allowed:  
- VFR - Day 
- “Cloud Flying” (if properly equipped, see NOTE 8); 
5) EASA Type Certificate Data Sheet No. EASA.A.221, Issue 05, dated August 9, 
2018.  
6) Date of application for FAA Type Certificate: August 2, 2022. 
 
Production Basis. Alexander Schleicher GmbH & Co. Segelflugzeugbau 
Alexander-Schleicher-Straße 1 
D-36163 Poppenhausen, Germany 
EASA Production Organization Approval Number:  DE.21G.0010

G47EU 8  
 
Import Requirements. A U.S. Standard Airworthiness Certificate may be issued on the basis of an Export 
Certificate of Airworthiness (Export C of A) signed by a representative of the German 
Airworthiness Authority (LBA), on behalf of the European Community.  The Export C of 
A should contain the following statement: "The glider covered by this certificate has been 
examined, tested and found to conform to the type design approved under FAA Type 
Certificate G47EU and is in condition for safe operation." 
 
Refer to the applicable bilateral agreement to verify eligibility for import into 
the United States of both new and used aircraft based on the scope of the 
agreement, to identify any required statements by the exporting authority on the 
export certificate of airworthiness (or equivalent document), and for procedures 
for coordinating exceptions to conformity statements on these documents. Refer 
to FAA Order 8130.2, Airworthiness Certification of Aircraft, for requirements 
for issuance of an airworthiness certificate for imported aircraft. 
 
Equipment. The basic required equipment as prescribed in the applicable airworthiness regulations 
(see Certification Basis) must be installed in the glider for certification.  In addition, see 
NOTE 7.  Finally, a copy of the ASK 21 Mi Flight Manual is required.   
 
Service Information. Each of the documents listed below must state that it is approved by EASA:  
• Service bulletins 
• Structural repair manuals 
• Vendor manuals 
• Aircraft flight manuals 
• Overhaul and maintenance manuals 
 
The FAA accepts such documents and considers them FAA-approved for type design 
data only unless one of the following conditions exists: 
• The documents change the limitations, performance, or procedures of the FAA 
approved manuals.  
 
The FAA uses post type validation procedures to approve these documents.  The FAA 
may delegate on a case-by-case basis to EASA to approve these on behalf of the FAA for 
the U.S. type certificate.  If this is the case, it will be noted on the document.  
 
ASK 21 Mi Operating and Service Instructions: 
1) Flight Manual, Issue December 1, 2007, or later approved revision. 
2) Maintenance Manual, Issue December 1, 2007, or later approved revision. 
3) Repair Manual, Issue April 1999, or later approved revision.  
4) Engine Manual, Austro Engine IAE50R-AA, Document No. E1.01.05-E, 
Revision 10 dated April 1, 2021, or later approved revision. 
5) Operating and Maintenance Manual for Propeller AS2F1, Issue February 2000, 
or later approved revision. 
 
NOTES. 
 
NOTE 1. Current weight and balance report including list of equipment in certificated empty weight, and loading 
instructions, when necessary, must be provided for each glider at the time of original certification. 
 
NOTE 2. The placards listed in Section 2 of the ASK 21 Mi Flight Manual must be displayed. 
 
NOTE 3. Section 4 of the ASK 21 Mi Maintenance Manual, titled “Airworthiness Limitations”, is FAA- approved, and 
specifies mandatory replacement times, structural inspection intervals, and related procedures.  These 
Airworthiness Limitations may not be changed without FAA approval. 
 
NOTE 4. All external portions of the glider exposed to sunlight must be painted with white gelcoat.  Wing tips, nose of 
fuselage and rudder may be painted with an additional color. 
 
NOTE 5. Information essential for the proper operation, maintenance and inspection of the glider is contained in the 
ASK-21 Mi Flight Manual and Maintenance Manual.

G47EU 9  
 
NOTE 6. Major structural repairs must be accomplished by a properly certificated mechanic in accordance with data 
approved by the FAA. 
 
NOTE 7. The manufacturer’s approved minimum equipment for all types of operations are listed in Section 2.13 of the 
ASK 21 Mi Flight Manual.   
 
NOTE 8. “Cloud Flying” is considered flying in Instrument Meteorological Conditions (IMC) and requires an 
Instrument Flight Rules (IFR) clearance in the U.S.  This is permissible in the U.S. provided the pilot has the 
appropriate rating per 14 CFR 61.3, the glider contains the necessary equipment specified under 14 CFR 
91.205, and the pilot complies with IFR requirements. 
 
...END...
```

## ADs (13, in force first)

- [AD 2017-02-11](https://openairdocs.org/ad/2017-02-11): Flight Controls · Alexander Schleicher ASK 21. Effective Mar 17, 2017
- [AD 2014-06-07](https://openairdocs.org/ad/2014-06-07): Placards and Markings · Alexander Schleicher ASK 21. Effective May 8, 2014
- [AD 95-11-15 R1](https://openairdocs.org/ad/95-11-15-R1): Parallel Rocker · Alexander Schleicher ASK 21. Effective Jul 25, 1999
- [AD 98-12-03](https://openairdocs.org/ad/98-12-03): Rudder Panel, Airbrake Bellcrank, Rear Canopy Hinge · Alexander Schleicher ASK 21, ASW-19 and ASW-19B. Effective Jul 14, 1998
- [AD 98-10-07](https://openairdocs.org/ad/98-10-07): SFM - Weight and Balance · Alexander Schleicher ASK 21. Effective Jun 26, 1998
- [AD 98-09-13](https://openairdocs.org/ad/98-09-13): S-Shaped Rudder Pedal Tube Inspection · Alexander Schleicher ASK 21. Effective Jun 14, 1998
- [AD 98-08-29](https://openairdocs.org/ad/98-08-29): SFM - Stall and Spin Recovery Information · Alexander Schleicher ASK 21. Effective May 18, 1998
- [AD 98-06-37](https://openairdocs.org/ad/98-06-37): Tow Release Cable Assembly · Alexander Schleicher ASK 21. Effective Apr 28, 1998
- [AD 98-06-38](https://openairdocs.org/ad/98-06-38): Elevator Pushrod · Alexander Schleicher ASK 21. Effective Apr 28, 1998
- [AD 97-08-06 R1](https://openairdocs.org/ad/97-08-06-R1): Quick Connectors · Alexander Schleicher AS-K 13, AS 12, ASK 21 and 39 more. Effective Aug 1, 1997
- [AD 87-10-07](https://openairdocs.org/ad/87-10-07): Rudder Pedal · Alexander Schleicher ASK 21. Effective May 13, 1987
- [AD 85-06-07](https://openairdocs.org/ad/85-06-07): Main Wheel Box · Alexander Schleicher ASK 21. Effective Jul 25, 1985
- [AD 84-23-03](https://openairdocs.org/ad/84-23-03): Placard And Afm Changes · Alexander Schleicher ASK 21. Effective Nov 14, 1984

## Registered aircraft by registry model (OpenAirDocs)

- [Schleicher ASK-21](https://openairdocs.org/model/schleicher-ask-21): 43 aircraft (registry code 38015GY)
- [Alexander Schleicher ASK 21](https://openairdocs.org/model/alexander-schleicher-ask-21): 26 aircraft (registry code 3801539)
- [Alexander Schleicher ASK 21 B](https://openairdocs.org/model/alexander-schleicher-ask-21-b): 7 aircraft (registry code 3801548)
- [Alexander Schleicher ASK 21 MI](https://openairdocs.org/model/alexander-schleicher-ask-21-mi): 5 aircraft (registry codes 3801557, 3801553)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.