Mi-17: how it differs from the Mi-8 and what an hour costs

A question about the price of a Mi-17 almost always runs into confusion over the name. Mi-17 is the export designation of the Mi-8MT family. The same machine appears in a Russian logbook as a Mi-8MTV-1 and in a contract with a foreign customer as a Mi-17-1V. Here is where the real line between generations of the "eight" runs, what its flight hour costs and what people ask for the machine itself.

One machine under two names

The name Mi-17 was first shown at Le Bourget in 1981: that is how the Mi-8MT went to export. After that every civil variant picked up a pair of designations, one domestic and one for export.

Under the Mi-17, Mi-171 and Mi-172 brands, machines from the Kazan and Ulan-Ude plants have gone to more than sixty countries. More than 12,000 of the Mi-8/Mi-17 family have been built in total — no other gas turbine helicopter comes close on volume.

The practical conclusion for a buyer is straightforward. The word "Mi-17" in a listing covers everything: a machine from the mid-eighties and a fresh Mi-8MTV-5 with a ramp and a glass cockpit. Offers are worth comparing by the variant written in the logbook, because the money at the two ends of that range differs several times over.

Where the generations part company

The watershed lies between the first generation on TV2-117 engines and everything that followed on the TV3-117.

Engine failure. On a Mi-8T with TV2 engines, a failure under load ends in a forced landing. On machines with the TV3 the flight continues on the remaining engine. For a customer this is the main item on the whole list of differences.

Tail rotor. On the Mi-8AMT it was moved to the other side of the tail boom, and the reserve of directional control grew.

Altitude performance. TV3-117VM engines hold their power in heat and in the mountains: machines in this line work from pads up to 4,000 m. The service ceiling rose from 4,500 to 6,000 m.

Avionics. The Mi-8AMT got equipment for instrument flight, and the Mi-8MTV-5 has a glass cockpit.

What the whole family shares is a cargo cabin 1.80 m high, the only one of its kind in the class. A wheeled vehicle fits inside it, or two medical modules for four people. Against Western machines in the AW139 and H175 class the cabin of the "eight" is twice the size, and that is how it holds on to jobs where volume decides.

What a flight hour costs

As far as I know, a helicopter flight hour on the market runs from 100,000 to 350,000 roubles. The cost of a Mi-8 hour in 2024 reached 250,000 roubles all in, and that is still before any operator margin.

A machine whose depreciation is behind it works out differently. An old Mi-8T was, as far as I know, flying a couple of years back at 120,000–140,000 roubles an hour and stayed profitable.

The wet charter rate — crew, fuel and insurance included — for the Mi-8AMT and the Mi-171 runs, as far as I know, between $1,800 and $4,500 an hour. The top of the range belongs to VIP cabins and one-off bookings, the bottom to transport machines and regular clients.

Repositioning is added to the quoted rate: a helicopter sits where it is based, and the customer pays for the hours flown to reach the point of departure. How the hour itself is built up and what else lands in the invoice is covered in the breakdown of what a flight hour costs and in the piece on chartering a helicopter in Moscow.

What the machine itself costs

Reference points from open listings and publications of 2024–2025, as far as I know:

The price of an actual deal is worked out from the logbook, the remaining life of the engines and the main gearbox, and the cabin layout. More on getting into helicopter ownership is in the piece on how much it costs to buy a helicopter.

What we fly

We started on helicopters in 2021 with a Mi-171A2 — the first helicopter we operated. In 2023 we took delivery of a Mi-8AMT built at the Ulan-Ude plant, and we contracted a Mi-8MTV in Kazan for delivery in 2025. Two more Mi-8s we built for clients, and they are in service. The Skylight fleet today is the Mi-8AMT and the Eurocopter EC130 T2. From the Russian market we buy mostly the Mi-8 and its family, the AMT and the MTV, and we work out configurations together with specialists from Russian Helicopters: our client segment is VIP.

Two details follow from that, and listings rarely mention either. Our Mi-8 has a proper lavatory with a washbasin and hot water — the cabin dimensions allow it, and on a light machine it cannot be done. The Mi-8 and the Mi-171A2 have an autopilot; the EC130, which we also operate, has none, only friction locks on the controls.

What to check when someone offers you a "Mi-17"

• The variant in the logbook and the plant that built it: Kazan or Ulan-Ude.
• Engines: TV2-117 or TV3-117, and the life remaining to overhaul on each.
• Main gearbox and rotor system: life remaining and the date of the last repair.
• Who carried out the overhaul and to which documentation.
• Layout: transport, passenger or "Salon", and how many seats it holds.
• Equipment for instrument flight.
• Which register the machine sits in now and what a transfer would take.

For new machines there is one more question, about warranty. The base warranty from the Ulan-Ude plant is 300 flight hours or one year. An extension to five years is cheaper when it is ordered at the contracting stage, and it brings a warranty team and advisory support with it.

Frequently asked questions

The seller calls the machine a Mi-17 and the logbook says Mi-8MTV-1. Are these different helicopters?

It is one machine. Mi-17-1V is the export name of the Mi-8MTV-1, and it turns up in the paperwork when the helicopter went to a foreign customer. Go by the logbook: it carries the variant, the serial number, the hours flown and the life remaining. The headline of a listing lives its own life, and sellers put in whichever name searches better.

The Mi-17V-5 comes with a ramp. Is it needed when you carry people?

The ramp is built for loading: vehicles, stretchers, oversized cargo. For a passenger job it adds weight and takes space out of the rear section. When a machine is bought to carry people, the cabin layout decides — the Kazan plant builds those to individual order, down to a conference area, a galley and satellite communications. Look at the specific helicopter with its specific interior, and treat the ramp as an option for your own tasks.

TV3-117VM and VK-2500 engines — how different do they make the machine?

The VK-2500 continues the TV3-117 line and delivers more power: across the family the published spread runs from 2,000 to 2,700 hp depending on what is installed. The difference shows where power runs short: heat, high altitude, take-off at full load. On a lowland route in summer you will not notice it. During an inspection, ask for the exact engine variant and the life remaining to overhaul — on gas turbines this is the heaviest line in the flight hour.

Alexander Filimonov — business aviation: sourcing, purchase and entry into service of aircraft.