Em junho, foram publicados dois vídeos de demonstração dos sistemas do Black Shark. Um deles era da partida da aeronave e o outro da programação dos sistemas de navegação e tiro.
Na época, não fiz o upload para o Youtube, pois o tamanho do arquivo não permitia. Algum tempo depois, o schmalzfaust (com uma assinatura de DIRECTOR), fez o upload. O vídeo está aí (tem 15 minutos):
Hoje, apareceu no fórum do ED, um tal de AirTito, um cara da Bulgária, dizendo que os procedimentos que aparecem no vídeo tem várias incorreções. Alguns, eu já havia percebido, como ligar ambos os motores ao mesmo tempo ou usar o coletivo para aumentar da NG. Outros, eu não tenho certeza de que estão corretos, como o gerador funcionar apenas acima de 85% de NG. Vou perguntar para ele de onde tirou essas informações. Em todo caso, vale a pena assistir ao vídeo e dar uma lida:
1. No APU start and operation. Without it you can’t start the main engines as it provides bled air for the engine starters. To start the APU you must open it’s shut-off valve and press the start button if the boost fuel pupms are running. That you must operate it for 1 min in order to reach optimal oil and EGT.
2. Both engines simultaneous start. Absolutely impossible, for two reasons- the APD-78A automatic engine start control unit is one for both engines and controls the start valve only of the engine that has been selected(left-right two-positional selector), and second- the APU is not capable of supplying both engines with compressed air.
3. During engine start you must manulay open the engine’s shut-off valve at engine RPM 15-20%. This valve is purely mechanical and it controled by lever similar to the engine control lever. Note: the shut-off valve the guy is opening is electrical valve that is in the fuselage and cuts the fuel from the engine nacelle in case of a fire. In russian these two valve are named “fire valve” and “stop valve”. The guys correctly opens the “fire valve” before engine start but the “stop valve” operation was not modelled. It’s important to have “stop valve” operation because this is how you normaly shut down the engine.
4. After both engines are at idle power you must operate the APU for another minute to cool it and you shut it down by pressing a button.
5. When at idle power (rotor RPM 65%, engine RPM 80%) the guy turns AC generators on. Not possible. You must have at least 85% rotor RPM in order to have them online. At lower RPM the frequency is so low that the generator’s control units will not switch it on.
6. To increase power and rotor RPM he uses only the collective. Wrong. You must first move the engine control levers (located on the left side) from Idle to Auto which will speed up the rotor up to 90% and from that moment you increase or decrease rotor’s thrust only by the collective. And when you have engines’ lever in Auto position and collective at lowest position you can turn on generators and rectifiers and then start all the avionics systems up.
Como o próprio AirTito diz no final do seu post, essas são questões menores, que não irão influenciar no simulador. O vídeo também já tem quase seis meses e bastantes coisas já devem ter mudado.
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That was nice. Thank you for sharing this one.
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