Phantom II FG Mk 1 & FGR Mk 2

Royal Navy & Royal Air Force — Primary-Source Technical Documentation
Ministry of Defence Air Publications AP 101B-0901 & AP 101B-0902 Series
9 Unique Documents · 1969–1990

The British Phantom — A Distinct Aircraft

The Phantom II FG Mk 1 (F-4K) and FGR Mk 2 (F-4M) are not simply licence-built American aircraft. The integration of the Rolls-Royce Spey RB168-25R bypass turbofan — in place of the General Electric J79 — mandated a fundamental redesign of the rear fuselage, intake geometry, and structural architecture. The result was an aircraft that shared the Phantom's airframe lineage but demanded its own dedicated documentation series, issued under the authority of the UK Ministry of Defence Defence Council.

This collection assembles 9 primary-source UK Ministry of Defence Air Publications covering both marks across their full service lives — from the 1969 original Aircrew Manuals through the 1990 final-edition FGR Mk 2 Aircrew Manual Weapon System Second Edition.

Document Manifest — 9 Primary-Source Documents

FG Mk 1 Series — AP 101B-0901

1. AP 101B-0901-15A
Phantom FG Mk 1 — Aircrew Manual
By Command of the Defence Council · Signed: Michael Cary
Prepared by Procurement Executive, Ministry of Defence · October 1969
The original FG Mk 1 aircrew manual — the primary operational reference for Royal Navy crews flying from HMS Ark Royal. Covers the full Spey-powered FG Mk 1 systems configuration including the double-extending nose oleo, slotted stabilator, and carrier-specific operating procedures.

2. AP 101B-0901-16 (AL 9, October 1975)
Phantom FG Mk 1 Aircraft — Operating Data Manual
By Command of the Defence Council · Signed: Michael Cary · Ministry of Defence
Sponsored for use in the Royal Navy by D.N.A.W. · Sponsored for use in the Royal Air Force by DFS (RAF) · AL 9 · October 1975
The definitive FG Mk 1 performance data reference — covering speed, climb, range, and fuel consumption data for the Spey Mk 202-powered variant. Dual-sponsored for both Royal Navy and RAF use.

3. AP 101B-0901-15B
Phantom FG Mk 1 — Aircrew Manual Weapon System
By Command of the Defence Council · Signed: Archie Whitmore · Ministry of Defence
Prepared by Ministry of Defence (AFD) RDT3 · June 1974 · AL 9 April 1985
The weapon system supplement to the FG Mk 1 Aircrew Manual. Documents the full AWG-11 fire control system, Sparrow/Sidewinder integration, and weapon delivery procedures. UK Restricted. Incomplete without confidential document CD 101B-0901 & 2-15D.

4. F-4K/M Plane Captains' Handbook
The ground crew readiness and servicing reference for Plane Captains responsible for the daily operational status of FG Mk 1 and FGR Mk 2 aircraft. Covers pre-flight walkaround, Spey engine servicing, auxiliary blow-in door inspection, and flight deck/dispersal procedures.

5. Phantom II FG Mk 1 / FGR Mk 2 — Spey Engine Manual
Rolls-Royce Spey RB168-25R technical reference
Primary-source engine manual for the Rolls-Royce Spey Mk 202/203 as installed in both British Phantom marks. Covers engine removal/installation, fuel system, reheat system, auxiliary intake door operation, and ground running procedures.

FGR Mk 2 Series — AP 101B-0902

6. AP 101B-0902-15A (AL 23, March 1990)
Phantom FGR Mk 2 — Aircrew Manual, Book 1
By Command of the Defence Council · Signed: Archie Whitmore · Prepared by RAF Handling Squadron
October 1969 · AL 23 March 1990
The final-amendment state of the FGR Mk 2 Aircrew Manual — updated through AL 23 in March 1990, covering the full service life of the RAF's primary interceptor and ground-attack variant.

7. AP 101B-0902-16 (AL 9, March 1975)
Phantom FGR Mk 2 Aircraft — Operating Data Manual
By Command of the Defence Council · Signed: Michael Cary · Ministry of Defence
Sponsored for use in the Royal Air Force by DFS (RAF) · AL 9 · March 1975
The FGR Mk 2 performance data manual — covering the land-based Spey Mk 203 configuration with unslatted stabilators. RAF-sponsored edition.

8. AP 101B-0902-15B — Second Edition
Phantom FGR Mk 2 — Aircrew Manual Weapon System, Second Edition
Ministry of Defence · November 1989
Second edition weapon system manual for the FGR Mk 2, revised to incorporate Mod 796 (RWR ARI 18228/5), Mod 804 (DCSS/AWG-12B), Mod 920 (HOTAS), Mod 942/944 (WAC Mk 10/NC Mk 8), Mod 955 (LCOSS reticle), Mod 994 (Davall camera), and SEM/Phantom/078 (PEWT pod). Replaces first edition at AL 21.

9. Phantom II FGR Mk 2 — Safety & Servicing Notes
The RAF ground crew safety and servicing reference for the FGR Mk 2. Covers aircraft safety pins, ground equipment connections, fuel and hydraulic servicing, ejection seat safety procedures, and dispersal servicing standards.

Technical Architecture — The Spey-Powered Phantom

Powerplant — Rolls-Royce Spey RB168-25R

Structural Modifications from Baseline F-4

• Rear fuselage widened by 15.2 cm (6 inches) — increasing transonic drag vs. J79 variants
• Intake area enlarged by 20% to meet Spey mass-flow requirements
• Engines canted downward 1.5° — nose-up pitch moment on rapid power application
• Auxiliary blow-in doors in rear fuselage flanks for ground/low-speed airflow supplementation

FG Mk 1 vs. FGR Mk 2 — Key Differences

• FG Mk 1: Slotted stabilators · Double-extending nose oleo (+40 inches, +11° launch AoA) · Spey Mk 202 · HMS Ark Royal carrier operations
• FGR Mk 2: Unslatted stabilators · Land-based undercarriage · Spey Mk 203 · RAF ground-attack and interceptor configuration

Performance Envelope

Handling Characteristics

• Nose-up pitch trim change on throttle advance — proactive forward stick required on go-arounds and carrier bolters
• Severe yaw in asymmetric engine-out / heavy store configurations — restrictive Vmc limits
• Aileron Rudder Interconnect (ARI) — mechanical/pneumatic adverse yaw correction at high AoA

Engineering Bulletins & Modification Standards

• Mod 5063 (RWR Fin Cap): Marconi ARIL 18228 Radar Warning Receiver — boxy antenna extension at top of vertical stabilizer
• Nose Gear Extension (FG Mk 1 only): Double-extending front oleo — +40 inches before catapult launch, static launch AoA to 11°
• Structural Fatigue Life (FI Index): Wing carry-through structure and lower fuselage skin reinforcement bulletins — counteracting fatigue index accumulation from low-altitude tactical roles

Collection Scope

9 unique documents · UK Ministry of Defence · 1969–1990

⚠️ 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.

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.
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