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Search: Posts Made By: EEngr
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Forum: Tech Log
3rd Sep 2022, 17:54
Replies: 12
Views: 6,392
Posted By EEngr

The presence of the HMG allows dispatch with an...

The presence of the HMG allows dispatch with an INOP APU generator over longer range routes.
Forum: Rotorheads
18th Aug 2022, 19:08
Replies: 88
Views: 12,133
Posted By EEngr

Not a pilot. But I have spent quite a bit of time...

Not a pilot. But I have spent quite a bit of time hiking in the local mountains (Pacific Northwest Cascades). I've seen quite a few clouds passing over a ridge with what might be sufficient clearance...
Forum: Tech Log
10th Jul 2022, 00:41
Replies: 37
Views: 16,821
Posted By EEngr

The APU can provide bleed air once started. The...

The APU can provide bleed air once started. The APU itself can be started from the APU battery alone.
Forum: Tech Log
3rd Jul 2022, 18:29
Replies: 2
Views: 609
Posted By EEngr

For what it's worth, DDG found this thread: ...

For what it's worth, DDG found this thread:
https://www.pprune.org/tech-log/9221-b737-400-ng-engine-vibration-indication.html
23rd Jun 2022, 15:41
Replies: 45
Views: 16,796
Posted By EEngr

Is it just my poor, aging eyes or does the left...

Is it just my poor, aging eyes or does the left main gear look like it's not quite straight in the post #4 video prior to touchdown? It might just be the parallax of the recorded image.
7th May 2022, 14:39
Replies: 49
Views: 13,935
Posted By EEngr

It's Douglas Aircraft all over again.

It's Douglas Aircraft all over again.
6th May 2022, 15:27
Replies: 49
Views: 13,935
Posted By EEngr

Push them to divest themselves of the defense...

Push them to divest themselves of the defense industry acquisitions they have made over the past few decades. Boeing hasn't done so much in the way of DoD R&D as they have bought the firms that have....
Forum: Tech Log
5th May 2022, 15:34
Replies: 12
Views: 2,613
Posted By EEngr

Probably improvements in MEMS accelerometer...

Probably improvements in MEMS accelerometer precision due to process improvements in chip manufacturing. What used to be very small and fiddly dimensions are now huge compared to current...
Forum: Tech Log
19th Mar 2022, 02:22
Replies: 3
Views: 747
Posted By EEngr

My $.02 here. A USB power bank is going to...

My $.02 here. A USB power bank is going to provide 5 volts. So a bit low for the 7 to 32 volt range spec'd in B2N2's manual. It may not work.

That said, it might. The slightly low voltage will...
13th Dec 2021, 01:58
Replies: 179
Views: 42,377
Posted By EEngr

There might be downsides. I don't know who sits...

There might be downsides. I don't know who sits closer to the president in his cabinet meetings or state dinners. But if the FAA perceives itself to be the possible loser in an administration...
27th Oct 2021, 15:35
Replies: 44
Views: 6,045
Posted By EEngr

Gyrojet?

To be fair, with a 155mm caliber, they have a chance of incorporating some active avionics rather than having to deal with the subject's poor balistics.
Forum: Rotorheads
15th Oct 2021, 15:20
Replies: 30
Views: 6,659
Posted By EEngr

It's a distinct possibility. RAs use a system of...

It's a distinct possibility. RAs use a system of frequency modulated continuous wave radar. A CW signal is ramped up in frequency and the reflected return signal differs in frequency based upon the...
Forum: Tech Log
25th Sep 2021, 15:04
Replies: 17
Views: 6,949
Posted By EEngr

Checkboard Almost exactly this scenario. But...

Checkboard

Almost exactly this scenario. But not just subsequent TR unit failures. Any short circuit in any device connected to a bus will pull the voltage on that bus low and disrupt the...
Forum: Tech Log
24th Sep 2021, 02:41
Replies: 15
Views: 2,810
Posted By EEngr

Indirectly, yes. The electrical power needed to...

Indirectly, yes. The electrical power needed to drive compressors and fans does indeed come from the engine and impact fuel burn. But the conversion of the engine gearbox energy through the variable...
15th Sep 2021, 22:52
Replies: 39
Views: 5,546
Posted By EEngr

Try a different mouse.

Try a different mouse.
Forum: Rotorheads
15th Sep 2021, 16:14
Replies: 68
Views: 11,930
Posted By EEngr

I suspect that what we are watching is the...

I suspect that what we are watching is the removal of old poles from the right of way. The terrain is steep, the cleared right of way narrow and any moving of poles on the ground would have to be...
3rd Sep 2021, 03:00
Replies: 13,575
Views: 615,151
Posted By EEngr

There has been a mistake! We ordered munitions,...

There has been a mistake! We ordered munitions, not musicians.
14th Aug 2021, 00:54
Replies: 26
Views: 25,473
Posted By EEngr

Automatically or manually engaged?

Automatically or manually engaged?
4th Aug 2021, 21:02
Replies: 4
Views: 3,040
Posted By EEngr

Duct tape

Ladies and gentlemen. Your in-flight entertainment will be a live performance of the Red Green show.
3rd Aug 2021, 15:06
Replies: 70
Views: 17,066
Posted By EEngr

This is a branch of the military we are talking...

This is a branch of the military we are talking about. The enemy is coming over the hill. Here's a rifle. There's your foxhole. Go!

As long as they can take care of it, no problem. But when...
31st Jul 2021, 15:47
Replies: 19
Views: 4,065
Posted By EEngr

During WWII ...

.. I seem to recall that the (now current) queen drove a truck for the British army. I don't know how far behind the lines that would have been, seing as how any military facilities were potential...
4th Jul 2021, 23:33
Replies: 26
Views: 25,473
Posted By EEngr

NutLoose 'Track', singular. A sign of not...

NutLoose

'Track', singular. A sign of not having the tug differential locks (if so equipped) properly engaged. As anyone who has driven a proper 4x4 knows, open differentials end up giving you...
2nd Jul 2021, 15:41
Replies: 26
Views: 25,473
Posted By EEngr

Meanwhile, in Russia ... ...

Meanwhile, in Russia ...
https://cimg3.ibsrv.net/gimg/pprune.org-vbulletin/812x368/russianpushback_7e8bf313e662711c60c9144f66ef53a7c5e1e66b.png
2nd Jul 2021, 14:57
Replies: 26
Views: 25,473
Posted By EEngr

Yes. I'm also surprised that these tugs aren't...

Yes. I'm also surprised that these tugs aren't all wheel drive. Or at least driven by the wheels under their engine compartment.
25th Jun 2021, 15:47
Replies: 176
Views: 113,747
Posted By EEngr

Question from the peanut gallery

How much leeway is there in pinning/unpinning landing gear between operators? Might some pin the gear only when necessary (towing, maintenance) and others pin the gear and leave it until pushback and...
23rd May 2021, 18:20
Replies: 11
Views: 1,414
Posted By EEngr

A priest, a rabbit and a vicar walk into a bar. ...

A priest, a rabbit and a vicar walk into a bar.

The barman says to the rabbit, ‘What do you want to drink?’

The rabbit replies,‘I don’t know, I’m only here because of predictive text.”
8th May 2021, 22:24
Replies: 7
Views: 941
Posted By EEngr

Not so much. The 3G and 4G GSM networks in the...

Not so much. The 3G and 4G GSM networks in the USA use different frequency bands than in Europe. But GSM is GSM and ensuring that one had a phone that covered all the requisite bands is all that it...
7th May 2021, 16:38
Replies: 7
Views: 941
Posted By EEngr

World 5G Phones

Soon, I will be made to set aside my trusty 4 band GSM phone. And switch to one of these 5G contraptions. To date, I have not found a good source of information on the compatibility of various models...
7th May 2021, 16:22
Replies: 11
Views: 3,121
Posted By EEngr

I used a date in 2006. Making me 15 years old....

I used a date in 2006. Making me 15 years old. Sure, I can't view gory videos or porn. But then Google doesn't carry much of that. What being a 15-year-old buys me is a certain protection from data...
10th Apr 2021, 02:47
Replies: 27
Views: 22,684
Posted By EEngr

tdracer From...

tdracer

From https://airwaysmag.com/airlines/airlines-pull-boeing-737-max-jets/
"American said in a statement that only the planes it received after the return of the MAX to service were...
9th Apr 2021, 16:12
Replies: 27
Views: 22,684
Posted By EEngr

BRE I'd heard that this was an autothrottle...

BRE

I'd heard that this was an autothrottle problem. Which might be electrical. But the sources linked here state that the current problem (sorry about that :O) is related to the electrical power...
9th Apr 2021, 15:57
Replies: 27
Views: 22,684
Posted By EEngr

PAXboy Renton. The only 737 production line,...

PAXboy

Renton. The only 737 production line, AFAIK.
8th Feb 2021, 16:08
Replies: 278
Views: 49,715
Posted By EEngr

That would be nice. The XF-84H doesn't sound too...

That would be nice. The XF-84H doesn't sound too bad. https://www.youtube.com/watch?v=YItexQxJS9U
But my poor little laptop speakers just fail to convey the true impact of its 135 db SPL.

I live...
7th Feb 2021, 23:10
Replies: 278
Views: 49,715
Posted By EEngr

Republic XF-84H "Thunderscreech". OK. I'll...

Republic XF-84H "Thunderscreech".

OK. I'll get my coat.
Forum: Rotorheads
12th Dec 2020, 23:16
Replies: 30
Views: 4,384
Posted By EEngr

I concur. The battery voltage might look OK once...

I concur. The battery voltage might look OK once the generator has topped it off and it is running under normal load. But the high draw from a start can cause the voltage of an individual weak...
Showing results 1 to 35 of 684
 


 
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