Jumo -004 (real one) Engine Run Up Video

[ATAG_SKUD]

In case you guys missed this...

 

[CUJO_1970]

Will probably be banned at air shows.

[[CPT]Crunch]

Kind of blurry, but it looks like they added extra metal plating over the blade throwing area including the cockpit.   Better safe than sorry.

[sevenless]

Can´t wait to see them fly. Using the right alloys should do the trick with the JUMO turbine. Interesting historical project.

 

I wonder which engines where used here?

 

 

 

Edited January 2, 2020 by sevenless

[[CPT]Crunch]

Same engineer who designed the Jumo also did the Lycoming for the Huey, basically perfected it.

[ATAG_SKUD]

These are the original Jumo 004s. They have been modified in key areas using modern materials though. The sound and thrust should be close to original though. The other newly manufactured 262's use GE CJ610s  (civilian version of the J85) nestled in a mock-up nacelle.

skud

Edited January 2, 2020 by ATAG_SKUD
clarification

[69th_chuter]

These engines appear to be all new with no original or original/modified parts.  The current expected TBO is 300 hrs.

[GSP_Hund]

Some of these new builds are using de-rated J-85 modern engines:

 

https://en.wikipedia.org/wiki/Me_262_Project

 

https://en.wikipedia.org/wiki/General_Electric_J85

 

Edited January 2, 2020 by GSP_Hund

[sevenless]

53 minutes ago, chuter said:

 The current expected TBO is 300 hrs.

 

IIRC the original Jumos had only 20. Galland and Steinhoff even spoke of only 12 hours.

[ICDP]

1 hour ago, chuter said:

These engines appear to be all new with no original or original/modified parts.  The current expected TBO is 300 hrs.

 

If accurate, this demonstrates that with proper materials much higher TBO would have been possible.  The original Jumo-004 was built using sub standard materials and had low TBO as a result.  The 004D did improve TBO to 50 hours but was only ready for production as the war ended.

 

With proper materials 150hrs was possible from flight testing.

 

http://www.aviation-history.com/engines/jumo004.html

 

 

[Voidhunger]

2 hours ago, chuter said:

These engines appear to be all new with no original or original/modified parts.  The current expected TBO is 300 hrs.

 

I think there are only some improved parts of the engine IIRC

[ICDP]

1 hour ago, sevenless said:

 

IIRC the original Jumos had only 20. Galland and Steinhoff even spoke of only 12 hours.

 

I remember reading it was 20-25 hours for a complete engine change, 10-12 hours was for TBO (turnaround between overhaul).

[Heliopause]

The running life of pre-production Jumo 004's rarely exceeded 10 ours. By september '44 the nominal running life was 25 hours.

[Elem]

1 hour ago, ICDP said:

TBO (turnaround between overhaul).

TBO is Time Between Overhaul.

 

Will probably be banned at air shows.

 

"The first flight is currently expected to take place late this fall, but current plans only extend to one flight, with the aircraft likely being grounded once it goes on display within the museum’s home at Paine Field in Everett, Washington."

Edited January 2, 2020 by Elem

[69th_chuter]

On 1/2/2020 at 5:11 AM, Voidhunger said:

 

I think there are only some improved parts of the engine IIRC

 

Yep - You are correct.  I thought the hot section and all rotating parts were new but apparently it's just the entire hot section that's new.

 

I am very much looking forward to the flight. 

On 1/2/2020 at 4:48 AM, ICDP said:

 

If accurate, this demonstrates that with proper materials much higher TBO would have been possible.  The original Jumo-004 was built using sub standard materials and had low TBO as a result.  The 004D did improve TBO to 50 hours but was only ready for production as the war ended.

 

With proper materials 150hrs was possible from flight testing.

 

http://www.aviation-history.com/engines/jumo004.html

 

 

 

They (FHM) said that during initial engine runs they began running into issues with the accessories because they were being run far longer than they initially had to because of the 35 hour engine core limit.

On 1/2/2020 at 3:54 AM, sevenless said:

 

IIRC the original Jumos had only 20. Galland and Steinhoff even spoke of only 12 hours.

 

From memory it seems if the engine went 10 hours without any problems there was a short list of minor problems that could be addressed on your way to engine removal at 25 hours.  If you made it to 25 hours without any problems you could address problems from that same short list on your way to a hard removal time of 35 hours.  There was a separate long list of problems that mandated immediate removal at any point of operation.