Learjet 24 — Primary-Source Technical Documentation Archive
The Learjet 24 is the direct evolutionary successor to the Learjet 23, certified under FAA TCDS No. A10CE and produced across four major sub-variants — the 24, 24B, 24D, 24E, and 24F — spanning production from 1966 through the mid-1970s. Powered by twin rear-mounted General Electric CJ610 turbojets delivering up to 2,950 lbf per engine, the Learjet 24 pushed the performance envelope further with a service ceiling reaching 51,000 feet on late-model variants. The introduction of the Century III wing modification on the 24E/F re-cambered the wing profile, significantly reducing stall and approach speeds and transforming the aircraft's low-speed handling. This collection assembles the complete primary-source factory documentation for the entire Learjet 24 family.
What's Included — Document Manifest
1. Learjet 24 Service Manual (SM-94)
Aircraft 24-100 thru 24-180 · Published: April 15, 1968 · Last change: April 29, 2005
The original factory service manual for the first-production Learjet 24 series. Covers all systems, rigging, servicing procedures, and operational limits for the baseline 24 airframe.
2. Learjet 24B Service Manual (SM-96)
Aircraft 24-181 thru 24-217 and 24-219 thru 24-229 · Published: January 1969 · Last change: March 25, 2005
Factory service manual for the 24B sub-variant. Covers the updated powerplant integration, systems changes, and rigging data specific to the 24B production block.
3. Learjet 24D/E/F Service Manual (SM-97)
Aircraft 24-218, 24-230 and subsequent · Published: May 26, 1976 · Last change: Change No. 30, March 25, 2005
The definitive service manual for the late-model 24D, 24E, and 24F variants. Incorporates Century III wing modification data, updated ECS/pressurization procedures, and the stick-puller Vmo/Mmo protection system (305 KIAS / Mach 0.81).
4. Learjet 24 Series Illustrated Parts Catalog (IPB-94)
Published: December 23, 1999 · Revision 1 dated October 10, 2000
Full illustrated breakdown of all Learjet 24 series airframe assemblies, sub-assemblies, and line-replaceable units. Covers the complete 24 family production run. Essential for parts identification, sourcing, and restoration.
5. Learjet 20/30 Series Structural Repair Manual (SRM-4)
Published: May 15, 1992 · Revised: July 10, 1998 (Rev. No. 4)
Structural repair data, allowable damage limits, and repair procedures for the Learjet 20 and 30 series family — the direct structural lineage shared by the Learjet 24. Addresses primary spar caps, wing attachments, and upper fuselage skin fatigue zones subject to recurring AD inspection requirements (ref. SB 25-53-4).
6. Learjet 24/25 Series — Dimensions, Areas, Structures & Doors
Factory reference document covering airframe dimensional data, structural area definitions, and door geometry for the Learjet 24 and 25 series. Includes front-view and side-view engineering line drawings.
7. Bombardier Aerospace — Learjet Spare Parts Price Catalog
Published: April 2004 · Covers Learjet Models 23, 24, 25, 28, 31, 35, 36, 40, 45, 55 & 60
Bombardier Customer Support official spare parts pricing reference. Invaluable for restoration budgeting, parts valuation research, and historical cost documentation across the full Learjet family.
Aircraft Technical Profile
Aerodynamics & Wing Geometry
Wingspan: 34 ft (10.84 m) · Wing area: 230 sq ft · Mean aerodynamic chord: 7 ft. Low-sweep wing optimized for high-altitude cruise. Baseline parasitic drag coefficient (CD0): 0.0216. Maximum clean-configuration lift coefficient (CLmax): ~2.0. Century III Mod (24E/F): re-cambered wing profile reducing stall and approach speeds.
Powerplant
Twin General Electric CJ610 rear-fuselage-mounted turbojets · Up to 2,950 lbf per engine. Internal fuel capacity: 5,590–5,647 lbs including wingtip auxiliary tanks. Engine compressor bleed air supplies cabin pressurization, anti-ice leading edges, and ECS.
Handling & Stability
T-tail horizontal stabilizer for pitch trim at high angles of attack. Automated stick-puller mechanism commands backward elevator pressure if Vmo (305 KIAS) or Mmo (Mach 0.81) is exceeded. Phase A–D airframe inspections at 300–2,400 hour increments.
Performance Comparison
| Parameter | Learjet 24 (Baseline) | Learjet 24E (Century III) |
|---|---|---|
| Max Takeoff Weight | 13,499 lbs | 13,500 lbs |
| Max Cruise Speed | 488 knots | 475 knots |
| Rate of Climb | 6,900 fpm | 6,800 fpm |
| Service Ceiling | 45,000 ft | 51,000 ft |
| Maximum Range | 1,591 nm | 1,100 nm (no fuse tank) |
This is an archival, static-copy edition fixed at its original publication date. Intended for historical reference, flight simulation, museum restoration, and educational use only. Not approved for active airworthiness maintenance under FAA 14 CFR § 43.13, EASA Part-M, or equivalent international regulations. Operators of active aircraft must use current, revision-controlled publications from the Type Certificate holder or an authorized distributor.
⚠️ Regulatory Notice: Under FAA 14 CFR § 43.13 and EASA Part-M, any mechanic performing maintenance on an active aircraft must use current, manufacturer-approved revision-controlled data. This archival document does not satisfy that requirement.
Living Collections with Free Lifetime Updates — Please review our Disclaimer and Export Notice before purchasing.