GarryB wrote:The original Be-42 or Be-40 called albatross was slightly bigger than the Be-200 and had four engines.... it had two externally mounted D30 engines as used on the Il-76, plus two small internal booster engines for takeoff to improve performance.
There were models of the Albatross that had PS-90A engines whose increased power (16 tons thrust vs 14 tons thrust for the D30) meant the internal engines were no longer needed to boost performance for takeoff.
They also showed a version with the turboprop engines of the An-70 (but just two engines of course) of the Albatross.
Perhaps a solution with front and rear facing turboprop engines, two on each side could provide the required thrust?
Or just derate the PS-90A engines and use two of those on the smaller Be-200 aircraft to begin with...
The PS-90, or later the PD-14 would be perfect for the Be-42 / A-40 Albatross.
It is however quite bigger and heavier (and with about twice the thrust) than the ukrainian D436 or the French/Russian SaM146.
Even if the weight and size would not preclude the Installation, it would be quite inefficient, as it the needed derate would be too big.
maybe it would be better to wait for the pd7 to be ready, also not to loose time certifying the aircraft with a half french engine and in the meanwhile concentrate on the bigger Be-42.
I do not know if Russia has still access to the ukrainian D436 for civilian use, as they continued to assemble An-148 until 2018 in Voronezh.
I believe the Russian Saljut plant in Moscow assembled those engines, possibility, however with lots of ukrainian components. If they are able to localize the supply chain (as they have done for the AI-222 for the Yak-130) they could use it as a "stopgap" until the PD7 engines are ready.
This will probably not be a problem for military aircrafts, but it could prevent civilian export if the ukrainian engine manufacturer creates some issues about engine certicification.
There are some differences between the version used in the An-148 (D-436-148) and the "Maritime" corrosion resistant version of the D-436 (D-436TP) developed for use in the amphibian Be-200.
In case Russia had no access to a full.supply chain for the engine, maybe it could be possible to just "swap" some parts (and if Russia has currently access to those parts) during an engine overhaul to modify a D-436-148 in a D-436 TP) . In this case they could use the engines of the fleet of An148 until they have a long term solution.