Propulsion · Turbojet engine
Telefly TF-TJ2000A
Also recorded as TF-TJ2000A and TJ-2000
A Chinese small turbojet sold as a model-aircraft engine, rated by its maker at 200 kgf of thrust. It powers the Geran-5 and some Geran-4s.
- Maker
- Telefly Telecommunications Equipment Co., Limited[1]
- Country
- China
- Found in
- 1 weapon, 1 recovered unit on record
- Photos
- 2
Photos
Turbojet engine TELEFLY TF-TJ2000A (0000000060) — Geran-5
Turbojet engine TELEFLY TF-TJ2000A (0000000060) — Geran-5
Photos: HUR War & Sanctions · HUR (Defence Intelligence of Ukraine)
The TF-TJ2000A is a micro turbojet from the Chinese firm Telefly, sold on Made-in-China as a model-aircraft engine. Telefly’s listing gives 200 kgf of thrust from an engine weighing 29.24 kg, and notes that its products are “solely for civilian use”.
HUR War & Sanctions found one, serial number 0000000060, in a recovered Geran-5. Euromaidan Press, reporting HUR’s Geran-4 release, says the same engine is fitted to some Geran-4s alongside the older LX-WP-160. In a teardown filmed by Radio Svoboda’s Schemes, a specialist identified a “TJ-2000” from a Geran and said the Chinese maker rates it for 30 hours of running. In October 2026 HUR said the Geran-4’s Telefly engine had been replaced by a Russian-made equivalent produced at Alabuga (Interfax-Ukraine).
Specifications
Each figure names its source. A maker's figure is the maker's claim; nothing here was measured by us.
| Maximum thrust | 200 kgf Official claim[2] |
|---|---|
| Maximum thrust (newtons) | 1,960 N Claimed[3] |
| Engine mass | 29.24 kg Official claim[2] |
| Diameter × length | 295 × 690 mm Official claim[2] |
| Specific fuel consumption | 1.30 kg/(kgf·h) Official claim[2] |
| Maximum rotation speed | 41,500 rpm Official claim[2] |
| Operating altitude | 0–14 km Official claim[2] |
| Start-up time | 70 s Official claim[2] |
| Rated service life | 30 h Claimed[4] |
What it costs
Prices published for the Telefly TF-TJ2000A, each in roubles, at the market rate and as the relative cost for Russia, with its source.
Reported one Chinese turbojet for Geran-4 / Geran-5, price Russia pays · Official statement, Vadym Skibitskyi, HUR deputy chief (RBC-Ukraine interview, about 2026-08-10), 2026
- Roubles
- ₽2.7–3.1 million
- Dollars, market rate
- $35,000–40,000
- Dollars, imported: market price applies
- $35,000–40,000
Stated as US$35,000–40,000: HUR deputy chief Vadym Skibitskyi told RBC-Ukraine that Russia remains fully dependent on Chinese turbojet engines for the Geran-4 and Geran-5. Each costs about $35,000–$40,000, he said.
HUR's figure for the Chinese engines of both the Geran-4 and the Geran-5.
Reported one Chinese turbojet engine (Geran-4/5) · Official statement, DIU (HUR, Ukrainian defence intelligence), 2026
- Roubles
- ₽3.1 million
- Dollars, market rate
- $40,000
- Dollars, imported: market price applies
- $40,000
Stated as US$40,000: According to DIU, one Chinese turbojet engine costs around US$40,000.
Reported the Geran-5's imported turbojet engine · Reported figure, 2026
- Roubles
- ₽3.1 million
- Dollars, market rate
- $40,000
- Dollars, imported: market price applies
- $40,000
Stated as US$40,000: As such, Russia's Geran-5 drones are more expensive than older piston-engined models, with the Chinese-imported turbojet engine alone costing $40,000.
The article names no estimator.
Documented TJ-2000 engine, classified-ad price in China (in Ukraine about $65,000) · Marketplace listing, Skhemy journalists, citing classified-ad websites, 2026
- Roubles
- ₽1.6–2 million
- Dollars, market rate
- $20,000–25,000
- Dollars, imported: market price applies
- $20,000–25,000
Stated as US$20,000–25,000: Вартість такого двигуна в Китаї коливається в межах 20-25 тисяч доларів, в Україні – в районі 65 тисяч (відповідно до сайтів з оголошеннями).
Classified-ad price in China for the TJ-2000 engine found in a Geran-4; the same ads put it at about $65,000 in Ukraine.
Radio Svoboda / Skhemy (RFE/RL), Geran-4 teardown special report ↗
How the prices are worked out
Each figure is first given as its source states it. A price in dollars, yuan or euros is converted into roubles at the average market exchange rate of its year (for 2026: Bank of Russia official rate, average Jan–Sep 2026). The dollar price at the market rate is those roubles converted back, which is what the item costs someone paying in dollars.
The third price is the relative cost for Russia. Prices inside Russia are far lower than the exchange rate suggests: in 2025 a dollar fetched 83.7 roubles on the market, but 29.6 roubles bought in Russia what a dollar bought in the United States, according to the World Bank's purchasing-power-parity factor. Russian price levels were therefore about 35% of American ones, and the third price is the market-rate price scaled down by that share. It is a comparison, not money paid: it shows how much smaller the burden is when the work is paid at Russian prices, which is why a rouble budget goes about 2.8 times further than its dollar value suggests.
The factor measures prices across the whole economy, not the price of weapons. It fits Russian wages and locally made parts best. Imported parts, such as Chinese engines and radios, are paid for in hard currency, so for them the market price is the real cost and their third price equals it. A figure for a whole weapon mixes both, so its relative cost understates the imported share.
Economists who compare defence budgets make the same point. Michael Kofman and Richard Connolly put Russia's effective military spending at $150–180 billion a year at purchasing-power parity, against the roughly $60 billion a year a market-rate conversion suggests. War on the Rocks, 2019 ↗
Peter Robertson of the University of Western Australia built a price index for military spending itself and found Russia's real budget to be more than three times its market-rate value. University of Western Australia, 2021 ↗
Prices are not adjusted for inflation: each is converted at the rates of its own year, which is shown with it. Sources for the rates: World Bank, official exchange rate (LCU per US$, period average), World Bank, PPP conversion factor, GDP (LCU per international $), Bank of Russia, official exchange rates.
How it is marked
Used in
Sources
- HUR War & Sanctions war-sanctions.gur.gov.ua/en/components/6872
- Made-in-China listing (archived copy) web.archive.org/web/20251219002429/https://sztelefly.en.made-in-china.com/produc …
- Euromaidan Press euromaidanpress.com/2026/05/25/ukrainian-intelligence-russias-new-jet-powered-ge …
- Radio Svoboda (Schemes) radiosvoboda.org/a/news-skhemy-reaktyvnyy-bpla-heran-spetsreportazh/33858889.htm …
- HUR War & Sanctions war-sanctions.gur.gov.ua/en/page-geran-5
Last checked 2026-10-19.