Tandem & Tilt-Rotor Aircraft development

Actually the opposite... having to stock a remote location using only helicopters would make it enormously expensive to support them...

Monthly or every two to three week deliveries would be done by An-2s for a fraction of the cost of any helo type including tiny robinson types used for training.

a 30m long helicopter like a Chinook is going to need a clear area of ground not that much smaller to safely land and take off.

Using only helos or tilt rotors to support communities in the far east and far north would be counterproductive and make it more expensive to support instead of less expensive.

Many of the settlements have gotten along just fine with only occasional access to the rest of the world and are generally largely self sufficient.

To put it in context a helicopter is a useful transport item for medical and emergency services. They are enormously expensive to buy and to operate, ..

If however you are talking about the far north of Russia it would take longer but you could make long trips via ground vehicles...No roads, but no need for roads because these are rugged cross country vehicles designed for arctic conditions.

An-2s are designed to operate from rough air strips... which means unprepared flat areas of ground... if fitted with skis that includes frozen rivers and lakes or areas of packed down snow.

The stall speed of the new An-2 means that if there is a strong head wind they can actually fly backwards.

They don't have a shortage of helos for that, what they need more of are fire fighting aircraft like Be-200 and A-42s.

You should buy the best for the job at hand... except when the provider has a history of unreliability... that would be France and Britain and the US, but not Russia ironically.

Based on their retarded logic they should not buy any...

Replacing the Mi-6 is more likely the new Chinese and Russian joint venture helo in the 10-15 ton payload range...

Tilt rotors ..don't actually seem to have better payloads or ranges than helicopters, only higher speed...

and against [u mean fixed wing?] aircraft it is only shorter operating air strips...

Fear of frost: a serious defect found in American convertiplanes



A recent US Marine Corps exercise in Japan revealed a serious flaw in the Osprey MV-22 tandem planes - these machines cannot operate at low temperatures. For the first time involved in the winter maneuvers Osprey arrived at them very late and performed a purely decorative function.

The joint exercises of the armed forces of the USA and Japan Northern Viper were held for the second time - and for the first time in winter. At the request of the Americans, the maneuvers were transferred deep into Hokkaido to Chitose airbase. The originally planned Misawa Air Base is located on the Pacific coast, fogs are frequent there in the winter - they, according to representatives of the US Army, could interfere with training.


According to the plan, the Osprey couple was supposed to fly to Chitose on January 27, even the city hall of the same city reported this. On the appointed day, officials notified the population that the convertiplanes hadn’t arrived, and then for several days reported that the arrival of outlandish aircraft was delayed, writes Shigeru Handa, a military columnist for Shūkan Gendai. The translation of the article was published by InoSMI.


On February 4th, the convertiplanes finally arrived. But here, it was not without adventure. Machine number "ET01" made an intermediate landing at the ILC base in Ivakuni, and then returned to the home airfield. Instead, Osprey flew with the number "ET03". To the surprise of the Japanese who participated in the training and watched it, the aircraft of the US Army took off very briefly - for 10-15 minutes, without performing any combat missions. According to the scenario of the exercises, the convertiplanes were supposed to provide the main phase of the exercises: landing, but in reality their flights were purely decorative. In addition, US aircraft produced a terrible rumble, and requests from municipalities located around Chitose to ban military flights over urban neighborhoods did not take effect.


The reason for such a modest participation of Osprey in the exercises was found in the manual of the tiltrotor. In the section “Pilot actions when the Low Temperature indicator is triggered, it is said that this signal reports a“ threatening loss of lift ”and requires the pilot to land immediately. The indicator lights up at temperatures below -15 degrees Celsius. On the scheduled day for landing, the thermometers Chitose fell to -15 ° C, the next day it was even colder, -18 degrees. In the sky, of course, it was even colder.

https://vpk.name/news/374971_boyatsya_moroza_u_amerikanskih_konvertoplanov_naiden_sereznyi_defekt.html

They didn't forget anything... clearly they selectively choose to not test them in cold weather because they knew they would fail and they wanted them in service.

We might see Minoga shortly anyway and that is going to be a 500km/h helicopter replacement for the Helix family... which would render tandem rotors and tilt rotors redundant.