JF-17 Block III vs HAL Tejas Mk-1A: Which Light Fighter Wins the Sky in 2025?
Table of Contents
Head-to-Head at a Glance
Design & Stealth – Tail-less Delta vs Compound Delta
Engines & Thrust – RD-93MA vs GE F404-IN20
Weapons & Payload – PL-15E vs Astra, BrahMos-NG Future
Radars & Cockpits – KLJ-7A vs EL/M-2052 AESA
Price Tag & Delivery – 32 M vs 42 M USD
Reliability – Combat-Proven vs Prototype Growing Pains
FAQ – Everything Google Autocompletes
Conclusion – Who Should Buy What?
1. Head-to-Head at a Glance
|
Spec |
JF-17 Block III |
Tejas Mk-1A |
|
Unit Cost |
USD 32 M |
USD 42 M |
|
Top Speed |
Mach 1.6 |
Mach 1.8 |
|
Combat Radius |
1,200 km |
739 km |
|
Payload |
4,600 kg on 9 pylons |
5,300 kg on 9 pylons |
|
Radar |
KLJ-7A AESA 170 km |
EL/M-2052 AESA 150 km |
|
Dispatch Rate |
98 % (PAF) |
93 % (IAF) |
|
Combat Record |
Operation Swift Retort 2019 |
None yet |
2. Design & Stealth – Tail-less Delta vs Compound Delta
The JF-17 Block III sticks to a conventional aluminium-lithium skin with bolt-on reduced-RCS treatments: saw-tooth edges, radar-absorbent paint around the intake.
Tejas Mk-1A, by contrast, is 45 % carbon-fibre composite from nose to tail, giving it a naturally smaller radar signature and lighter empty weight. Add a RAM (radar-absorbent material) coating on leading edges and the Indian jet wins the stealth skirmish—though neither aircraft is a true fifth-generation platform.
Long-Tail Win: “Tejas Mk-1A vs JF-17 Block III radar cross-section”
3. Engines & Thrust – RD-93MA vs GE F404-IN20
Compare thrust-to-weight, top speed, combat radius—RD-93MA 98 kN vs GE F404-IN20 85 kN.
Pakistan’s RD-93MA pumps out 98 kN on after-burner, giving the lighter JF-17 a thrust-to-weight ratio of 1.03 at combat load.
India’s GE F404-IN20 delivers 85 kN, but because the Tejas airframe is lighter, its thrust-to-weight ratio hits 1.07—the highest in the light-fighter class.
Top-end speed: Tejas Mach 1.8 vs JF-17 Mach 1.6.
Range game: JF-17’s 1,200 km combat radius beats Tejas (739 km) thanks to larger internal fuel fraction and in-flight refuelling probe on both jets.
Long-Tail Win: “JF-17 Block III vs Tejas speed difference”
4. Weapons & Payload – PL-15E vs Astra, BrahMos-NG Future
PL-15E range, Astra Mk-1 BVRAAM, BrahMos-NG on Tejas, hard-points comparison
Both jets carry 9 hard-points, but Tejas lifts 5,300 kg versus JF-17’s 4,600 kg.
Beyond-visual-range missiles:
✅PL-15E on JF-17 reaches 145 km with active AESA seeker.
✅Astra Mk-1 on Tejas tops 110 km (Mk-2 in testing hits 160 km).
✅Anti-ship punch: JF-17 fields the Mach 4 CM-400 AKG
✅hypersonic missile today; Tejas will integrate BrahMos-NG (Mach 3.5, 300 km) by 2026.
✅Precision bombs: JF-17 uses LS-6 glide kits; Tejas drops Spice-250 and Sudarshan LGBs.
✅Long-Tail Win: “Can Tejas carry BrahMos?”
5. Radars & Cockpits – KLJ-7A vs EL/M-2052 AESA
KLJ-7A 170 km vs EL/M-2052 150 km; both AESA, but who locks first?
✅KLJ-7A (China) offers 170 km vs 150 km for EL/M-2052 (Israel) on current Tejas batches.
✅Track-while-scan targets: 15 vs 64 – edge to EL/M-2052 for multi-target engagement.
✅Helmet-mounted sight: JF-17 third-gen vs Tejas second-gen Elbit DASH.
✅HUD: Tejas holographic; JF-17 tri-color MFD stack.
✅Long-Tail Win: “Does JF-17 have AESA radar?”
6. Price Tag & Delivery – 32 M vs 42 M USD
JF-17 Block III unit cost, Tejas Mk-1A fly-away price, delivery time
Fly-away cost:
✅JF-17 Block III USD 32 M
✅Tejas Mk-1A USD 42 M
Delivery timeline: 18 months (PAC) vs 24 months (HAL).
Life-cycle cost: JF-17 benefits from Chinese parts and Pakistani labour; Tejas carries Western avionics premiums and rupee inflation.
Export scoreboard:
✅JF-17: Pakistan, Myanmar, Nigeria (total 170+ air frames)
✅Tejas: India only, In spite of efforts still no international buyer.
✅Long-Tail Win: “Why is Tejas more expensive than JF-17?”
7. Reliability – Combat-Proven vs Prototype Growing Pains
Dispatch rates, crash history, combat sorties – who is more battle-ready?
✅JF-17 Block III: Zero documented crashes; 98 % dispatch rate PAF 2024 audit.
✅Combat proven: Operation Swift Retort 2019 (Balakot flare-up) – night strike missions.
✅Tejas Mk-1A: 93 % dispatch rate IAF; one prototype crash Dubai Airshow 2025 (no fatalities).
✅Combat use: None yet; IOC-2 achieved March 2025.
Long-Tail Win: “JF-17 Block III vs Tejas dog-fight winner”
8. Master FAQ – Rich-Snippet Ready
Q1. Which is better JF-17 Block III or Tejas Mk-1A?
A: Pick JF-17 for range and cost; pick Tejas for payload, speed and stealth.
Q2. Does JF-17 Block III have AESA radar?
A: Yes, KLJ-7A with 170 km range.
Q3. Can Tejas carry BrahMos?
A: BrahMos-NG integration planned 2026; today carries Astra Mk-1.
Q4. JF-17 Block III vs Tejas range comparison?
A: JF-17 1,200 km combat radius vs Tejas 739 km.
Q5. Which fighter will Malaysia choose?
A: RFP closes 2026; Tejas offers US engine commonality, JF-17 offers price and faster delivery.
9. Conclusion – Who Should Buy What?
Budget-conscious air force needing quick delivery and proven combat? JF-17 Block III is your jet.
Air force that values top speed, composite stealth, Western avionics and is willing to pay 30 % more?.
In a pure within-visual-range dog-fight, thrust-to-weight gives Tejas a slight edge; in beyond-visual-range, PL-15E reach tips the scale to JF-17. Ultimately, the “best” light fighter is the one that fits your strategic wallet and diplomatic alignment—because both jets are formidable in 2025 skies.

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