Milviz F-4E APU on

[wyman_hd 232]

Whenever I do "Cold&Dark" the F4E has a green APU light on.

I can't start the engines. When I press "Signal External Airflow Start" nothing happens. On the F4J/S (there is no APU) it works fine. I'm guessing this APU is preventing my engines to start. How do i shut off the APU?

[JB3DG 225]

There is a reset APU switch just to the right of the throttles. And its not the same APU as in airliners (can't recall what it was, but I think it is related to the tail surfaces).

Edited February 20, 2019 by JB3DG

[b1bmsgt 206]

I am former USAF, and spent a lot of time around D and E models, and I don't recall the aircraft having an APU. We always did starts using air and power from a -60...

 

Russ

 

Edited February 20, 2019 by b1bmsgt

[wyman_hd 232]

On 2/20/2019 at 2:24 AM, JB3DG said:

There is a reset APU switch just to the right of the throttles. And its not the same APU as in airliners (can't recall what it was, but I think it is related to the tail surfaces).

I switch the APU to reject but i still cant signal for external airflow start...

[Dominique_K 10,137]

 

On 2/20/2019 at 4:56 PM, b1bmsgt said:

I am former USAF, and spent a lot of time around D and E models, and I don't recall the aircraft having an APU. We always did starts using air and power from a -60...

 

Russ

 

 

I was intrigued by your post so I did a little search. You'll find here why some F4 had an APU and why you never saw one starting the aircraft 

http://joebaugher.com/usaf_fighters/f4_11.html

starting with Block 40 (68-0452), an auxiliary power unit was added underneath the stabilator. However, it was only a battery-powered electrically-driven hydraulic pump and was not a small turbine engine. It provided just enough control to allow time for ejection, and probably would not last long enough to allow a landing.

[b1bmsgt 206]

I never actually crewed the aircraft, so my knowledge is less than a Crew Chief would have,  but I worked them in Phase, Transient alert and Aircrew Debrief and never heard mention of that APU. Probably one of those systems that you never think about until you need it... 😊

 

Russ

[Dominique_K 10,137]

2 hours ago, b1bmsgt said:

I never actually crewed the aircraft, so my knowledge is less than a Crew Chief would have,  but I worked them in Phase, Transient alert and Aircrew Debrief and never heard mention of that APU. Probably one of those systems that you never think about until you need it... 😊

 

Russ

I see that you crewed the T33A. A2A Simulations had the project of making one few years back. It seems that it is on the backburner or maybe off the cooking range altogether I don't know. But they may  be interested by guys like you . Imagine one in P3D, wouldn't be that nice ? 

Edited May 30, 2019 by domkle

[wyman_hd 232]

Whoops fixed it. Had to reinstall the F4E all is well !

[b1bmsgt 206]

On 5/30/2019 at 9:15 AM, domkle said:

I see that you crewed the T33A. A2A Simulations had the project of making one few years back. It seems that it is on the backburner or maybe off the cooking range altogether I don't know. But they may  be interested by guys like you . Imagine one in P3D, wouldn't be that nice ? 

Yeah, I crewed the T-33 at Griffiss AFB, NY 1982-86 with the 49th Fighter Interceptor Squadron. Actually, I spoke to them at FlightSimCon in 2016, the last one at the New England Air Museum, and mentioned my background to them. They said at the time that the project wasn't definite, and I guess they were telling the truth. Haven't heard a word about it since. I would really love a good T-Bird for P3D. I keep hoping maybe Milviz will do one, but...

 

Russ