In answer to MTLTV1765 question. When these engines are started up they are started in "feather" (propellor blades are in line with the airflow/fuselage-a position they are put into in with an engine failure for minimum drag on the aircraft). After start up the condition levers in the cockpit are moved forward and the the blades go into fine pitch (blades in line with the wings). As there is a lot less drag on the props this way they are able to spin much faster and are governed at this rpm. These are "free turbine" engines-the propellors are not directly hooked up to the rotating engine but turn separately from the engine.
I notice from watching videos of the Dash 8 starting up is that when they start the first engine, the propeller does not spin that fast. Once the second engine is started, it is then when both engines are brought to idle RPM. When you see the engines on the Beechcraft KingAir startup, the first engine goes all the way to idle RPM before the second engine starts up. Why is that?
The engines on the Dash 8-100 in the video are the P&W120 series. These are "free turbine" engines. What this means is the prop's gearbox is driven from its own shaft in the engine. Compressed air created internally drives the RGB (reduction gear box) which rotates the propeller. The KingAir also uses P&W engines but these are the "PT6" series. A different design from the P&W 100 series engines. I have no experience with the PT6 but many hours with the P&W100 series. the 120's on the Dash 8-100; the 123's on the Dash 8-300 and the 150's on the Dash 8-Q400. I found this video on YT which explains how the P&W100-series engines operate: ua-cam.com/video/HIPNDxI9s_k/v-deo.html
@@chingiz81 Only the Dash 8-400 officially had the "Q" designation. This was due to the Anti Noise & Vibration System (ANVS) installed during manufacture. The -100, -200 and -300 series Dash 8's never had the ANVS installed so no "Q" in their respective designations.
I miss these things so much😢😢
WONDERFUL make sure to do more plane startups!
nice!
In answer to MTLTV1765 question. When these engines are started up they are started in "feather" (propellor blades are in line with the airflow/fuselage-a position they are put into in with an engine failure for minimum drag on the aircraft). After start up the condition levers in the cockpit are moved forward and the the blades go into fine pitch (blades in line with the wings).
As there is a lot less drag on the props this way they are able to spin much faster and are governed at this rpm. These are "free turbine" engines-the propellors are not directly hooked up to the rotating engine but turn separately from the engine.
I notice from watching videos of the Dash 8 starting up is that when they start the first engine, the propeller does not spin that fast. Once the second engine is started, it is then when both engines are brought to idle RPM. When you see the engines on the Beechcraft KingAir startup, the first engine goes all the way to idle RPM before the second engine starts up. Why is that?
The engines on the Dash 8-100 in the video are the P&W120 series. These are "free turbine" engines. What this means is the prop's gearbox is driven from its own shaft in the engine. Compressed air created internally drives the RGB (reduction gear box) which rotates the propeller.
The KingAir also uses P&W engines but these are the "PT6" series. A different design from the P&W 100 series engines. I have no experience with the PT6 but many hours with the P&W100 series. the 120's on the Dash 8-100; the 123's on the Dash 8-300 and the 150's on the Dash 8-Q400.
I found this video on YT which explains how the P&W100-series engines operate: ua-cam.com/video/HIPNDxI9s_k/v-deo.html
@@av8or555 l to
I should have some idea of what I'm flying. That's a Dash 8-100.
Where was this taken>
Será que dá certo. Eu acho as hélices muito pequena. Para o tamanho do avião....
Dash 8 have been retired from service at Jazz
CYGK Kingston ON
wow
What is the name of the airplane and what state are you going
DeHavilland Dash 8-100
CYGK-CYYZ
Not a dash8...atr I think
Q100 Or Q200?
Dash 8-100. No "Q".
@@av8or555 like q models
@@chingiz81 Only the Dash 8-400 officially had the "Q" designation. This was due to the Anti Noise & Vibration System (ANVS) installed during manufacture.
The -100, -200 and -300 series Dash 8's never had the ANVS installed so no "Q" in their respective designations.
@@av8or555No Q Model*
@@cya7153 There is a Q model