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Search: Posts Made By: Grunff
Showing results 1 to 11 of 11
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Forum: Rumours & News
17th Dec 2020, 15:12
Replies: 156
Views: 116,314
Posted By Grunff

The sad part is that Li-Ion + metal box weights...

The sad part is that Li-Ion + metal box weights more than NiCd it was meant to replace.
Forum: Rumours & News
17th Dec 2020, 08:07
Replies: 156
Views: 116,314
Posted By Grunff

And to top it off, there is FAA warning about...

And to top it off, there is FAA warning about software bug found in newly rolled Autothrottle uppdates. Affecting 787, 777 and 747. This was not found in testing but out in the wild.

"Several...
Forum: Rumours & News
19th Nov 2020, 06:46
Replies: 96
Views: 70,131
Posted By Grunff

Fun fact: Turbine discs always shatter into...

Fun fact:
Turbine discs always shatter into three 120 degree pie cuts due to geometric/material constrains. So basically, you can calculate statistic probability of one of those piercing trough the...
Forum: Rumours & News
16th Nov 2018, 07:16
Replies: 2,099
Views: 1,474,541
Posted By Grunff

Great explanation. Basically, bigger and more...

Great explanation. Basically, bigger and more powerful donks hung further away/forward from centre of gravity. Larger nacelles potential "flipping-the-aircraft-around" effect in turns/high-AoA was...
Forum: Rumours & News
15th Nov 2018, 06:53
Replies: 2,099
Views: 1,474,541
Posted By Grunff

This is one of the reasons 737 could not be...

This is one of the reasons 737 could not be equipped with P&W GTF engine. The base design (wing-ground clearance) is from the 60's. It worked fine for turbojets, needed squashed nacelles for larger...
Forum: Rumours & News
18th Feb 2018, 08:59
Replies: 302
Views: 391,820
Posted By Grunff

Unfortunately, to me it sounds like typical swiss...

Unfortunately, to me it sounds like typical swiss cheese hole scenario:

1. Airplane type has manual pitot heat (first hole)
2. Tired crew forgets to turn them on (another hole)

speculations:...
Forum: Rumours & News
21st Dec 2016, 08:07
Replies: 158
Views: 174,467
Posted By Grunff

According to current info (unverified), they...

According to current info (unverified), they overrun, got airborne, did a hard turn and crashed. He seems to be banking hard and pulling streamers from wing tips from 0:27
Forum: Rumours & News
21st Dec 2016, 07:45
Replies: 158
Views: 174,467
Posted By Grunff

Hmm...previous takeoffs from same runway were not...

Hmm...previous takeoffs from same runway were not that confidence inspiring either:
https://www.youtube.com/watch?v=gyEGj1rH1r0&app=desktop

It seems to be on the bleeding edge of envelope. Old...
Forum: Engineers & Technicians
22nd Oct 2013, 21:09
Replies: 1,150
Views: 732,351
Posted By Grunff

DWS: Aren't most of the holes in composite panels...

DWS: Aren't most of the holes in composite panels done by orbital drilling nowadays? Drilling CFRP panels with ordinary drills usually leaves irregular holes with chaffed edges.

Movie of the...
Forum: Tech Log
17th Sep 2013, 16:27
Replies: 50
Views: 57,694
Posted By Grunff

Here is rather self-explaining video of what...

Here is rather self-explaining video of what happens when you disconnect yaw damper(s). It's made by Dutch students...doing, errr... Dutch roll... PH-LAB (4/7): Dutch Roll - YouTube
Forum: Tech Log
1st May 2011, 18:50
Replies: 3,435
Views: 1,674,377
Posted By Grunff

Hats off to the search party. It pays to be...

Hats off to the search party.
It pays to be persevere. I hope they will find Flash-memory still intact and that we will learn something from this sad accident.
Showing results 1 to 11 of 11


 
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