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Forum: Military Aviation

25th Oct 2011, 09:31

Replies: 399

A400M Flight Testing Progress

Views: 402,447

Posted By Trim Stab

Actually it says that there was water ingression...

Actually it says that there was water ingression into the main gear wells which caused damage to an (unspecified) part.

Forum: Military Aviation

20th Jul 2011, 08:31

Replies: 399

A400M Flight Testing Progress

Views: 402,447

Posted By Trim Stab

Yes, I can see that the C130J would have...

Yes, I can see that the C130J would have asymmetric problems as all four props rotate clockwise - presumably it was too expensive to make props 3 & 4 rotate anticlockwise.

But if the designer has...

Forum: Military Aviation

19th Jul 2011, 20:21

Replies: 399

A400M Flight Testing Progress

Views: 402,447

Posted By Trim Stab

I don't understand that reply. If all four props...

I don't understand that reply. If all four props were supra convergent (which is what one would ideally design into a multi-engine prop driven aircraft) there would be no asymetric airflow over the...

Forum: Military Aviation

19th Jul 2011, 19:32

Replies: 399

A400M Flight Testing Progress

Views: 402,447

Posted By Trim Stab

Prop configuration on A400

Judging from the curve of the prop blades (as shown from the close up photos in post 62), the rotation of props one & four would appear to be supra-convergent, which is what one would expect if the...

Forum: Military Aviation

19th May 2011, 18:14

Replies: 399

A400M Flight Testing Progress

Views: 402,447

Posted By Trim Stab

. The civilian certification requirements...

.

The civilian certification requirements are MINIMUM standards required. If a manufacturer wishes to install systems that have BETTER performance then there would be no objection from the...

Forum: Military Aviation

13th May 2011, 20:31

Replies: 399

A400M Flight Testing Progress

Views: 402,447

Posted By Trim Stab

Huh? Civilian certification is about flight...

Huh? Civilian certification is about flight testing to establish that an aircraft has performance that meets or exceeds minimum performance requirements decreed by civilian authorities. If an...

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