Hire a Private Jet to Gabon, Central Africa
Gabon lies across the equator, about 3,215 nautical miles south of London, and almost every private flight there is made for oil, mining or government business. Libreville takes most of the arrivals, Port-Gentil serves the oil coast, and the rest is forest with very few airfields that suit a business jet. Our customers have access to 6,500 jets of all types and configurations available for rent. We will help you choose the best option based on your needs and objectives. Our catalog contains the models from the largest manufacturers: Gulfstream, Dassault, Embraer, Airbus, Boeing, Bombardier, Learjet, Cessna, Beechcraft, Pilatus, HondaJet, etc. We have established partnerships with the world's largest airlines and VIP terminals, which means we can offer you favourable flight conditions and a high level of service. Our experts will manage the organization of your flight - starting with paperwork, agreements, etc., and ending with a transfer and meeting at the airport. Our company provides a full range of business aviation and concierge services. Services for business aircraft in Gabon are limited, and we say plainly what can be arranged.

At your request, the aviation consultants of Private Jets UK will help you choose the jet with the suitable technical parameters (production year, flight hours, and home base). The cost of the private jet charter in Gabon depends on many factors, such as the model of the business jet, the number of passengers, departure and destination airports, type of flight, duration of parking, additional services, etc. Therefore, we calculate the price of each order individually taking into account your wishes. You can use an online calculator to get an instant charter quote. Please indicate your real contact details to get the final calculation.
You can calculate the cost of your flight in several ways:
- using an online calculator on the website (however, it shows only the approximate price);
- via Messenger (WhatsApp or Telegram);
- by landline or cell phone;
- via e-mail (jets@private-jets.co.uk).
Please note that the above-mentioned price is indicative only. It is calculated on this basis: a departure from Biggin Hill, an Embraer Praetor 600 to Libreville nonstop, and two passengers aboard. If you want to get a personal quote, just fill out the online booking form below. Our aviation consultant will make the calculation within 20 minutes, and then contact you to specify the details of the flight.
How long does it take to fly to Gabon?
Gabon keeps West Africa Time all year, which is one hour ahead of London in winter and the same as London in summer. These are the sectors to Libreville, gate to gate, with the aircraft we would normally propose from each field:
3,215 nautical miles, the closest of the London fields that suit a long sector, and the basis for the price at the top of the pageabout 7 h 40 min on a Praetor 600, nonstop
3,218 nautical miles, the usual choice for Surrey, Hampshire and the Thames Valleyabout 7 h 40 min on a Praetor 600, nonstop
3,358 nautical miles, the main departure for the north of England, on a larger aircraft with range in handabout 7 h 20 min on a Global 6000, nonstop
3,525 nautical miles, the main Scottish departure, also flown on a larger aircraftabout 7 h 40 min on a Global 6000, nonstop
Why nonstop works, and what the clock has to fit
The Praetor 600 is credited with a range of 4,018 nautical miles with four passengers, and the line from London to Libreville is about 3,215, so the aircraft arrives with a reserve and without a fuel stop. A smaller jet would need a stop on the way.
The Libreville tower is listed as open around the clock, but the airport administration works from 0630 to 1430 UTC and the civil aviation office from 0730 to 1430 UTC, so we plan the arrival for the working day.
The exact flight time depends on the model of the business jet, as well as the speed of the tail or head wind. Our consultant will make a detailed calculation of the flight time for the chosen business jet.

Prices for the private jet flights to Gabon
Typical private jet charter prices from Britain to Libreville, cheapest first. The entry price is Biggin Hill to Libreville on a Praetor 600, flown nonstop. The other rows show the aircraft we would usually propose from each airfield, and every one of them flies the sector without a stop:
| Route | Aircraft | Price, one way |
|---|---|---|
| London Biggin Hill - Libreville 3,215 nm / 5,954 km nonstop |
Praetor 600 up to 9 |
from £50,950 |
| London Farnborough - Libreville 3,218 nm / 5,960 km nonstop |
Praetor 600 up to 9 |
from £51,000 |
| Bristol - Libreville 3,244 nm / 6,008 km nonstop |
Praetor 600 up to 9 |
from £51,400 |
| London Luton - Libreville 3,251 nm / 6,021 km nonstop |
Praetor 600 up to 9 |
from £51,500 |
| Birmingham - Libreville 3,299 nm / 6,110 km nonstop |
Praetor 600 up to 9 |
from £52,250 |
| Leeds Bradford - Libreville 3,384 nm / 6,267 km nonstop |
Praetor 600 up to 9 |
from £53,500 |
| London Gatwick - Libreville 3,206 nm / 5,938 km nonstop |
Falcon 900LX up to 12 |
from £80,700 |
| Southampton - Libreville 3,204 nm / 5,934 km nonstop |
Falcon 900LX up to 12 |
from £80,700 |
| Newcastle - Libreville 3,455 nm / 6,399 km nonstop |
Falcon 900LX up to 12 |
from £86,700 |
| Manchester - Libreville 3,358 nm / 6,219 km nonstop |
Global 6000 up to 13 |
from £92,200 |
| Belfast - Libreville 3,471 nm / 6,428 km nonstop |
Global 6000 up to 13 |
from £95,150 |
| Edinburgh - Libreville 3,525 nm / 6,528 km nonstop |
Global 6000 up to 13 |
from £96,550 |
| Glasgow - Libreville 3,530 nm / 6,538 km nonstop |
Global 6000 up to 13 |
from £96,700 |
Two things worth knowing about these figures
– The same Biggin Hill departure on a Global 6000 comes to about £88,450, which is £37,500 more than the Praetor. The extra money buys a roomier cabin;
– A one-way price assumes the aircraft flies home empty. For a stay of several days it either waits at Libreville, with parking and the crew's hotel as separate lines, or flies back and returns for you.
Private jet flights within Gabon and to its neighbours
Libreville and Port-Gentil are only 84 nautical miles apart, which is about 40 min in the air and a short hop for a jet that is already in the country. We do not normally propose a foreign business jet for passengers travelling between two points inside Gabon, so the sectors we are asked for most are the onward ones, to Franceville and across the border:
| Route | Aircraft | Flight time | Price, one way |
|---|---|---|---|
| Libreville - Port-Gentil (Gabon) 84 nm / 156 km |
Citation XLS+ up to 9 |
about 40 min | from £6,800 |
| Libreville - Bata (Equatorial Guinea) 93 nm / 172 km |
Citation XLS+ up to 9 |
about 45 min | from £6,800 |
| Libreville - Douala (Cameroon) 222 nm / 411 km |
Citation XLS+ up to 9 |
about 1 h | from £6,800 |
| Libreville - Malabo (Equatorial Guinea) 210 nm / 389 km |
Citation XLS+ up to 9 |
about 1 h | from £6,800 |
| Libreville - Franceville (Gabon) 284 nm / 526 km |
Citation XLS+ up to 9 |
about 1 h 10 min | from £6,800 |
| Libreville - Pointe-Noire (Republic of the Congo) 364 nm / 674 km |
Citation XLS+ up to 9 |
about 1 h 20 min | from £7,400 |
| Libreville - Lagos (Nigeria) 538 nm / 996 km |
Citation XLS+ up to 9 |
about 1 h 45 min | from £9,950 |
Domestic sectors and the neighbours
– A leg between Libreville, Port-Gentil and Franceville, the three airports of entry, is planned as a continuation of an international flight;
– Each neighbour has its own permits and entry rules, which we check before we quote.
We can arrange the flights from any cities in the UK (England, Scotland, Wales and Northern Ireland) and European countries. Due to a large database of available business jets, we can help you find an optimal jet and crew. If you have any questions about the departure or the flight itself, you can ask them using the form below:
Prices depending on the type of business jet
We can clearly show the high dependence of the cost of the flight, on the type of aircraft - we have collected approximate data, at the price of 1 flight hour, for various types of business jets:

The cost per hour indicated in the table is preliminary and does not constitute an offer or a commercial offer. Exact prices are available from the managers of the company.
Online Calculator
If you want to make an urgent calculation of the cost of a private plane flight, use our online calculator. Just fill in all the fields of the form with a note that you are interested in a specific model of the aircraft and get the final price. NB! - the figures are sent to you by email or messenger, please carefully fill in the contact details to get the calculation.
All our calculations are as transparent as possible for you. After receiving the request, we will prepare a beautiful offer - where the costs and the final price will be clearly described. The exact price is agreed in advance and is written in the contract, so you can be sure of the final cost.
Private jets are ready to take off
Our database contains over 6,500 business jets (about 3,500 in Europe and 3,000 in the rest of the world) of different configurations and production years. The list of models is constantly updated. Unfortunately, we can't post a full list of available jets on our website due to confidentiality issues. Please contact the managers of the company for more accurate information. We will help you choose a suitable model taking into account your wishes. Typical choices for Gabon:
Turboprops
For short hops along the Gulf of Guinea, never for the journey from London.
Light and midsize jets
These cover the neighbours in the region, and reach Libreville from London only with a stop.
Super-midsize
The Praetor 600 sets the entry price and flies London to Libreville nonstop, while the others in this class usually need a stop.
Heavy jets
For a delegation or a family with staff. Some of them need a stop on this sector, which we plan with the client.
Ultra-long range
The comfortable nonstop way to cover 3,200 nautical miles, carrying up to 16 people.

How to book a private jet?
You can book a private jet flight to Gabon in 6 easy steps:
- Flight request - indicating the route and your preferences for the model of business jet and other points.
- Coordination of flight details - our consultant will contact you to offer the possible flight options and answer all your questions.
- Commercial offer - we will send you a final offer on a specific model taking into account all your wishes.
- Signing of the contract.
- Payment for the flight and booking a business jet.
- Departure at the agreed time and date. Assistance during the whole flight.
In addition to renting the private jets and arranging the flights, we provide concierge services, premium transfer, security, exclusive catering, etc. We have learned to solve problems of any complexity, offering the service of the European level. Our experts will be happy to answer your questions and help you arrange your flight.
How to rent a business jet with a crew
5 main stages:
-

Sending an application
-

Clarification of details and search for options
-

Preparation and coordination of optimal options
-

Registration of documents. Payment of the invoice.
-

Departure on the route.
Business aviation airports in Gabon
Three airports matter to a charter from Britain: Libreville, Port-Gentil and Franceville. A fourth, Makokou, is a small field without customs:
| Airport | Ground | How it operates |
|---|---|---|
| Leon M'ba International LBV / FOOL |
about 7 km north-west of the centre of Libreville, on the coast | One runway, 16/34, 3,000 metres (9,843 feet) by 148 feet, at an elevation of 38 feet, with ILS, VOR and GPS approaches. Tower hours are H24, with administration from 0630 to 1430 UTC. Airport of entry with customs, rescue and fire category 8 and jet fuel. Handling is mandatory, slots are listed as not required. This is the gateway for every London departure |
| Joseph Rendjambe Issani International POG / FOOG |
about 4 km west-north-west of Port-Gentil, the oil city | One runway, 02/20, 2,600 metres (8,530 feet) by 148 feet, at an elevation of 13 feet, with ILS and VOR/DME approaches. Listed hours are 0500 to 2300 UTC, which is 0600 to midnight local time, with a request needed outside them. Airport of entry with customs, fire category 6 and jet fuel |
| Franceville Mvengue International MVB / FOON |
about 19 km west of Franceville, in the south-east | One asphalt runway, 15/33, 3,080 metres (10,105 feet) by 148 feet, at an elevation of 1,450 feet, with ILS and VOR/DME approaches. Listed hours are 0600 to 1800 UTC, with a request by 1600 UTC for a late arrival. Airport of entry with customs, fire category 6 and jet fuel |
| Makokou MKU / FOOK |
in the north-east of the country, in the forest | One runway, 07/25, 1,800 metres (5,906 feet), open from 0700 to 1500 local time. No customs or immigration, so an international arrival is not possible here. A flight from abroad has to clear customs elsewhere first |
None of the three has a business aviation terminal that we can name and describe. Directories list General Aviation Services (G.A.S.) at Libreville, Port-Gentil and Franceville, and name several more flight-support agents at Libreville, among them Jetmate Aviation, JetPlus Aviation Services, Mixjet, Moonjet and Nova Aviation Services. One of them describes its Libreville work as permits, slots, airside transport, fuel, catering, crew hotels and payment of airport charges. We choose the agent, then confirm in writing where the party is processed and who meets the aircraft.
Four points settle most arrivals:
Permit: ask early
Two permit services give 24 to 48 working hours when the paperwork is complete, and one of them shows 72 hours as the recommended lead time. We allow the longer period and more over a weekend or a holiday.
Papers for the aircraft
Certificates of registration and airworthiness, insurance and a noise certificate. A change of aircraft, date or route can mean the permit is revised, so we fix the aircraft before we apply.
Crew visas
Listed as issued on arrival, typically valid for up to 72 hours. For a longer stay we arrange them in advance.
Arriving from Britain: visa, yellow fever and the Foreign Office advice
British passengers need a visa before they fly, and a yellow fever certificate in the hand luggage. The Foreign Office entry page does not cover private aircraft, so the High Commission and the handler confirm the procedure for each trip.
British citizens must apply before travelling. The Foreign Office names the High Commission of Gabon in London as the most reliable route, and asks a business visitor for a letter of invitation from a person or company in Gabon, and a tourist for a hotel booking or hotel letter. Gabon has also launched an online visa platform, so we check which route appliesapply weeks ahead
valid for at least six months after the date of arrival, and not reported lost or stolen; carry the passport and visa, or a certified copy, because police checks are commoncheck the expiry
a yellow fever vaccination certificate is required; malaria, dengue and Zika are also listed as risks, and vaccination advice should be checked at least eight weeks before travelvaccinate early
The Foreign Office advice, as published
The Foreign Office names no area of Gabon that it advises against visiting. It reports robbery, armed attacks and carjacking, warns against quiet beaches around Libreville at night, and advises licensed taxis booked in advance, since assaults on taxi passengers have been reported.
Unrest can start suddenly, so it advises avoiding protests and large gatherings. Photographing government or military buildings or airports is illegal and can mean arrest. Roads inland are poor, many passable only by 4x4 in the rains.
Health care, money and the way home
The Foreign Office says medical facilities are limited, particularly in rural areas, and asks travellers to hold insurance that covers local treatment and evacuation. Credit cards are mostly accepted only at hotels, and card fraud is reported as common outside the major chains.
Anything that may be prohibited or taxed must be declared on arrival. Coming home, a General Aviation Report goes to the border authorities not earlier than 48 hours and not later than two hours before departure, and British and Irish citizens need no electronic travel authorisation.

Which airport for which part of the country
Gabon is mostly rainforest and the three airports we can plan around sit far apart. The right one is the airport nearest the meeting, since inland roads are poor.
the capital, the government offices, the embassies and the hotelsLibreville LBV
the oil industry city on the Atlantic, south of Libreville, with its own airport of entryPort-Gentil POG
the mining province, where the manganese comes fromFranceville MVB
Loango and Lope lie far from the three airports; we confirmed no airport near either that a London business jet could use, so airstrips and transfers are asked about case by caseask first
Libreville, the oil coast and the forest: what our clients go for
Oil explains most of the traffic. Crude oil makes up roughly four fifths of Gabon's exports and about two fifths of its economic output, and Port-Gentil, the second city, grew into the centre of the industry. The trips we plan are for the executives, engineers and officials who deal with the operators.
Manganese is the second driver. The Compagnie miniere de l'Ogooue, a subsidiary of the French group Eramet, mines at Moanda in the province of Haut-Ogooue, and the ore goes by the Trans-Gabon Railway, which runs about 640 kilometres to Franceville, to the port of Owendo near Libreville. French is the official language and the currency is the Central African CFA franc.
Leisure demand is small. Thirteen national parks cover about a tenth of the country. Loango, between two lagoons in the west, covers about 1,550 square kilometres of savanna, beach, forest and mangrove, with elephants and buffalo that come down to the sand, hippos that go into the surf, and humpback whales offshore. Lope, in the centre, covers about 4,900 square kilometres, is a UNESCO mixed natural and cultural site, and holds one of the largest concentrations of primates in the world.
The Gabonese year: the dry months and the wet ones
The climate is equatorial, with about 2.5 metres of rain a year and temperatures around 26 degrees Celsius all through. The year divides like this:
the main dry season, with June, July and August the driest, although those months are often grey and overcastmain dry
the short dry season, when elephants and gorillas come to the beaches in Loango, from December until the middle of Februaryshort dry
the wettest months, when unpaved roads turn to mudwettest
the humpback whales pass offshore, and the season can run into October. Leatherback turtles nest on the Loango beach from November to the middle of Januarywildlife
The Gabonese calendar: public holidays
These are the fixed dates in the published list of national holidays that affect a flight plan:
What a holiday does to a flight plan
Permit offices do not publish holiday hours, so for a trip near any of these days, or near a movable religious holiday, we apply early and ask for written confirmation that someone will answer.

Flying to Gabon with a dog or a cat
A pet can travel in the cabin, but the papers take weeks.
The facts to read before you book
The usual conditions are an ISO microchip, a rabies vaccination from 12 weeks of age and at least 21 days before travel, an official veterinary certificate issued within 10 days of arrival, a rabies antibody blood test for animals from countries treated as high risk, and an import permit from the Ministry of Agriculture, asked for at least 30 days ahead and required for cats from high-risk origins. Libreville is the entry point, and a cat or ferret with incomplete papers can be refused or held.
These conditions are confirmed before each trip, and we obtain the requirements in writing from the embassy before the aircraft is confirmed.
Coming home, a pet from a country outside the simple British scheme, as we understand Gabon to be, needs a microchip fitted before the rabies vaccination, a rabies blood test and a wait before it can travel, unless these were done before it left. A dog must also be treated against tapeworm by a vet no less than 24 hours and no more than 120 hours before landing in Britain. An animal that arrives without the right paperwork can be held in quarantine for up to four months.
We confirm in writing which entry point will receive the animal and which papers are needed. Requirements for birds, rabbits and the less usual species are set out in our flying with pets guide.

Empty Legs
An empty leg is a repositioning flight with nobody aboard, offered at a fraction of the usual price. On a route this long and this thin they are rare, and we do not promise one.
Where Gabonese empty legs come from
– A charter that lands in Libreville and does not wait, so the aircraft returns to Europe empty;
– Aircraft repositioned from West or Central Africa.
Whatever is free is listed on our empty legs page. A selection of Gabonese empty legs follows:
| Route | Aircraft | Capacity | Whole aircraft |
|---|---|---|---|
| Gabon (Libreville) - UK (London Biggin Hill) | Praetor 600 | 9 seats | £21,400 |
| Gabon (Libreville) - UK (Bristol) | Praetor 600 | 9 seats | £21,600 |
| UK (London Luton) - Gabon (Libreville) | Praetor 600 | 9 seats | £21,650 |
| Gabon (Libreville) - UK (Birmingham) | Praetor 600 | 9 seats | £21,950 |
| UK (Farnborough) - Gabon (Libreville) | Falcon 900LX | 12 seats | £34,000 |
| UK (Manchester) - Gabon (Libreville) | Global 6000 | 13 seats | £38,700 |
How to read those figures
– Each price is for the whole aircraft rather than per seat. A Praetor 600 from Luton to Libreville with nine aboard works out at about £2,400 a seat, and with four aboard about £5,400.

Helicopter charter
Helicopters in Gabon belong mostly to the oil industry. We found a long-term contract that bases two medium helicopters at Port-Gentil for crew changes and medical evacuation, but no helicopter operator offering charter to visitors that we can name and verify, and no heliport that we could confirm. A helicopter carrying passengers between two places in the country is normally a local one, so we confirm the machine, the crew and each landing site when a request comes in, and say so if it cannot be done.

Flights from the UK to Gabon
Biggin Hill and Farnborough suit a long sector best, with Luton, Gatwick, Stansted and London City as the other London options. Manchester is 143 nautical miles further from Libreville than Biggin Hill, and from there we propose a larger aircraft with range in hand. The table below lists the British airports we work with:
List of TOP 25 business aviation airports:
| Airport | Country | ICAO | IATA |
|---|---|---|---|
London Heathrow Airport |
England | EGLL | LHR |
Birmingham Airport |
England | EGBB | BHX |
London Gatwick |
England | EGKK | LGW |
London City Airport |
England | EGLC | LCY |
London Luton |
England | EGGW | LTN |
Edinburgh Airport |
Scotland | EGPH | EDI |
Leeds Airport |
England | EGNM | LBA |
Manchester Airport |
England | EGCC | MAN |
London Stansted |
England | EGSS | STN |
Liverpool John Lennon Airport |
England | EGGP | LPL |
Newcastle Airport |
England | EGNT | NCL |
Bristol Airport |
England | EGGD | BRS |
Glasgow Airport |
Scotland | EGPF | GLA |
East Midlands Airport |
England | EGNX | EMA |
Southampton Airport |
England | EGHI | SOU |
Jersey Airport |
Channel Islands | EGJJ | JER |
Cardiff International Airport |
Wales | EGFF | CWL |
Inverness Airport |
Scotland | EGPE | INV |
Bournemouth Airport |
England | EGHH | BOH |
London Farnborough Airport |
England | EGLF | FAB |
Oxford Airport |
England | EGTK | OXF |
London Biggin Hill |
England | EGKB | BQH |
Belfast Airport |
Northern Ireland | EGAA | BFS |
Gibraltar Airport |
Gibraltar | LXGB | GIB |
Aberdeen Airport |
Scotland | EGPD | ABZ |
Gabonese charters from the booking notes: six typical trips
Six typical jobs, with details changed.
LIBREVILLE · A DAY OF MEETINGS
Three executives and a day in the capital
Biggin Hill - Libreville and return, Praetor 600 nonstop, about 7 h 40 min each way · 3 pax
The visas were applied for weeks ahead with an invitation letter, the permit with a generous margin, and the aircraft landed within the administration hours.
PORT-GENTIL · AN OIL DELEGATION
Seven engineers on a site visit
Manchester - Libreville, Global 6000 nonstop, about 7 h 20 min, then Libreville - Port-Gentil · 7 pax
The yellow fever certificates went to the handler early, and the second leg landed well inside the listed hours at Port-Gentil.
FRANCEVILLE · THE MINING PROVINCE
Four guests for the manganese country
London Luton - Franceville, Praetor 600 nonstop, about 8 h 05 min · 4 pax
The handler confirmed customs at Franceville in writing, and the schedule was fixed for daylight.
LIBREVILLE AND MALABO · TWO COUNTRIES
A team continuing along the coast
Farnborough - Libreville, Falcon 900LX nonstop, about 7 h 40 min, then Libreville - Malabo · 8 pax
The Equatorial Guinean permit and entry rules were checked in Britain before departure, since each country has its own approvals and formalities.
WITH THE DOG · SEVERAL WEEKS OF PAPER
A couple and a spaniel bound for a long posting
Biggin Hill - Libreville, Praetor 600 nonstop, about 7 h 40 min · 2 pax + dog
The import requirements were asked for at the start, and the blood test for the British return was done before leaving.
EMPTY LEG · A FLEXIBLE RETURN
A return from Libreville on a Praetor
Libreville - Birmingham, Praetor 600 empty leg, about 7 h 50 min · 5 pax
The client gave a window of three days instead of a date and paid about £21,950, a little under half of a fresh one-way charter on the same sector.
Frequently asked questions about flying to Gabon
1How long does it take to fly to Gabon by private jet?
About 7 hours 40 minutes from London Biggin Hill to Libreville on a Praetor 600, nonstop. A Global 6000 flies from Manchester in about 7 hours 20 minutes.
2How much does a private jet to Gabon cost?
From about £50,950 one way from Biggin Hill to Libreville on a Praetor 600. A Global 6000 on the same departure is about £88,450, and from Edinburgh a Global 6000 is about £96,550. Libreville to Port-Gentil starts from £6,800 on a midsize jet.
3Which airport do private jets use in Gabon?
Leon M'ba International (LBV / FOOL), about 7 km from the centre of Libreville. It is listed with a 3,000 metre runway, customs and jet fuel. Port-Gentil (POG / FOOG) and Franceville (MVB / FOON) are the other airports of entry for the oil coast and the south-east.
4Do British passengers need a visa for a private flight to Gabon?
Yes. The Foreign Office says British citizens must have a visa before travelling, with a yellow fever certificate and a passport valid for six months after arrival. A business visitor needs a letter of invitation. The aircraft also needs a landing permit, which permit services put at 24 to 48 working hours.
5What does the Foreign Office advise about travel to Gabon?
It names no area to avoid. It reports robbery, carjacking and assaults on taxi passengers, warns that unrest can start suddenly, bans photography of airports and government buildings, and notes that medical facilities are limited.
6Can I take my dog or cat on a private jet to Gabon?
Yes, with planning. A pet-travel guide describes a microchip, a rabies vaccination, an official veterinary certificate issued within 10 days of arrival and, in some cases, a blood test and an import permit. The return follows the British rules for countries outside the simple scheme, including a rabies blood test.