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12th Jan 2024, 20:57
Replies: 1,926
Views: 893,221
Posted By Grummaniser

Irrelevant discussion about door spring strength

All this to-and-fro about whether the lift-assist springs exert a force greater than or less than the weight of the door only applies on the ground or in level (more precisely 1g) flight. It wouldn't...
9th Jan 2024, 00:12
Replies: 1,926
Views: 893,221
Posted By Grummaniser

One additional observation - on the NTSB photo of...

One additional observation - on the NTSB photo of the door with the polythene sheet and the "2" annotation in red. This appears to show the lift-assist slide together with the bracket that normally...
12th Jul 2023, 07:51
Replies: 7
Views: 2,941
Posted By Grummaniser

It's got a diff on the back axle but I guess it's...

It's got a diff on the back axle but I guess it's 4WD, not just front.
24th Feb 2023, 10:58
Replies: 59
Views: 13,838
Posted By Grummaniser

Best turn it round and send it back then 🙂

Best turn it round and send it back then 🙂
21st Feb 2023, 23:54
Replies: 672
Views: 610,458
Posted By Grummaniser

Not being a suitably qualified pilot, may I ask:...

Not being a suitably qualified pilot, may I ask: are the condition levers moved to full feather as part of the normal post flight procedures? If so I wonder if a partial explanation of the erroneous...
27th Dec 2022, 12:24
Replies: 337
Views: 262,660
Posted By Grummaniser

My thought was that the F.O. overcompensated with...

My thought was that the F.O. overcompensated with left rudder, perhaps due to the SIM needing a bootful or perhaps because the #2 failure was only partial, which then caused a left yaw, leaving the...
8th Aug 2022, 07:35
Replies: 30
Views: 12,851
Posted By Grummaniser

If only obstacles like that could be fitted with...

If only obstacles like that could be fitted with some sort of illuminated beacon...🙂
22nd May 2022, 23:50
Replies: 32
Views: 13,030
Posted By Grummaniser

I'm now a long lapsed PPL but got my licence in...

I'm now a long lapsed PPL but got my licence in the 90s with about 58 hours. The PPL did indeed include enough IMC training to do a level 180 turn to get you out of a situation you shouldn't be in in...
4th Jan 2022, 08:09
Replies: 182
Views: 52,286
Posted By Grummaniser

I'm not going to argue with the rest of your...

I'm not going to argue with the rest of your maths as I am unqualified to do so but the 1mW reference is 0dBm, not 1dBm. (1 X 10^0)
27th Oct 2021, 20:44
Replies: 2,429
Views: 2,892,645
Posted By Grummaniser

It's a long time since I shared an N reg in the...

It's a long time since I shared an N reg in the UK but IIRC the maintenance regime is a lot less taxing. In particular I think the owner can do more unsupervised maintenance than on the G register.
21st Oct 2021, 17:29
Replies: 91
Sticky Headset?
Views: 39,881
Posted By Grummaniser

Better yet - if you buy an ANR headset and are...

Better yet - if you buy an ANR headset and are disciplined enough to keep the ANR switched off until at least you have got your PPL you will have bought one headset for both periods of your flying...
3rd Oct 2021, 19:54
Replies: 10
Views: 3,193
Posted By Grummaniser

Perhaps she was the source of the wind.

Perhaps she was the source of the wind.
10th Sep 2021, 07:49
Replies: 73
Views: 12,893
Posted By Grummaniser

One thing I did many years ago when I was...

One thing I did many years ago when I was learning to land : I was finding that doing touch and goes was not helpful because I was not able to digest the landing before I had to start concentrating...
10th Apr 2021, 11:13
Replies: 27
Views: 23,505
Posted By Grummaniser

To be fair, it doesn't say plastic anywhere in...

To be fair, it doesn't say plastic anywhere in the article. Could be something metal but just not as permanent as a rivet
22nd Jan 2021, 22:35
Replies: 10,020
Views: 842,479
Posted By Grummaniser

Some great captions - Nice to see that good old...

Some great captions - Nice to see that good old English toilet humour (with a u) is alive and well and living on PPRuNe.

Special award to Nutloose for cleverly infiltrating a link to the previous...
21st Jan 2021, 21:14
Replies: 10,020
Views: 842,479
Posted By Grummaniser

https://cimg3.ibsrv.net/gimg/pprune.org-vbulletin/...

https://cimg3.ibsrv.net/gimg/pprune.org-vbulletin/770x431/disembark_8bc2710dd35cb08f2567279fecbe596224be08e9.jpg
First time posting an image so fingers crossed... My starter for 10 is "If we walk...
19th Jan 2021, 14:10
Replies: 10,020
Views: 842,479
Posted By Grummaniser

"Don't all push at once - there'll be another one...

"Don't all push at once - there'll be another one along in a minute"
15th Dec 2019, 09:31
Replies: 8
Views: 3,014
Posted By Grummaniser

Thanks. Now that I've looked more closely at the...

Thanks. Now that I've looked more closely at the photos I can see that it's a more complex profile than just a plain washer. Apologies for the thread drift - back to the main story!
14th Dec 2019, 22:09
Replies: 8
Views: 3,014
Posted By Grummaniser

Can anyone with the necessary knowledge of...

Can anyone with the necessary knowledge of mechanical engineering explain how the different faces of the thrust washer affect its operation. Just interested...
24th Nov 2019, 20:57
Replies: 4
Views: 2,215
Posted By Grummaniser

To be fair to our own AAIB(UK) they usually quote...

To be fair to our own AAIB(UK) they usually quote references as footnotes rather than appending a formal References section.
10th Jun 2019, 14:41
Replies: 37
Views: 28,186
Posted By Grummaniser

Ded reckoning

Arghhhh! One of my pet hates -it's DED reckoning, 'Ded' being short for 'Deduced'
Pedantly yours...
9th Apr 2019, 15:01
Replies: 5,109
Views: 12,687,471
Posted By Grummaniser

Heard BBC Radio4 news the other day saying that...

Heard BBC Radio4 news the other day saying that MCAS was a system to prevent the ENGINES stalling. I wrote them a stiff email...!
28th Mar 2019, 12:11
Replies: 5,109
Views: 12,687,471
Posted By Grummaniser

The AOA is used to calculate an adjustment to the...

The AOA is used to calculate an adjustment to the Indicated Airspeed so a faulty AOA will cause the calculation to be unreliable thus causing an Unreliable Airspeed annunciation
24th Mar 2019, 11:41
Replies: 5,109
Views: 12,687,471
Posted By Grummaniser

Parity bits

It doesn't take a double bit error to lose one bit of data - somewhere in the system between the RDVT fixed to the AoA vane and the bus, is an analogue to digital converter chip (or array of them)...
Forum: Rotorheads
6th Dec 2018, 17:11
Replies: 1,254
Views: 700,296
Posted By Grummaniser

As I understand it the over tightening of the nut...

As I understand it the over tightening of the nut at the spider end of the shaft was likely caused by rotation of the shaft as the duplex bearing got tighter, not necessarily by over torquing during...
7th Aug 2018, 08:55
Replies: 7
Views: 4,277
Posted By Grummaniser

ROFL!!! Where's the 'like' button when you need...

ROFL!!! Where's the 'like' button when you need it?!
19th Jul 2018, 13:40
Replies: 39
Views: 5,078
Posted By Grummaniser

Alderney? Don't know how it is these days but...

Alderney? Don't know how it is these days but went there years ago, hired bikes near the airfield and found a nice restaurant a short cycle ride away. Has that special cache of being somewhere you...
19th Jul 2018, 08:52
Replies: 4
Views: 1,045
Posted By Grummaniser

Is this it?

Got me intrigued so I scanned Google maps satellite view for evidence of aviation activity and found a helicopter here. You need to put https slash slash in front to use it
goo.gl/maps/DH9oGuaTQww...
23rd Dec 2004, 13:17
Replies: 15
Views: 3,474
Posted By Grummaniser

I am probably about to get this wrong too but I...

I am probably about to get this wrong too but I think you are wrong Sir George. The lower the pressure the lower your actual altitude (pressure low - look out below) so the dangerous time is when...
26th Apr 2003, 06:59
Replies: 1
Views: 650
Posted By Grummaniser

100LL - Where did you get that information? Got...

100LL - Where did you get that information? Got my PPL the same year they built the airport and I've been wishing they'd accept singles for years.
TIA
11th Feb 2003, 13:10
Replies: 7
Views: 2,447
Posted By Grummaniser

Yankee meant to say...

Yankee meant to say "http://www.grumman.net/archive/"

He may not be able to spell but he certainly knows his Grummans;)
Forum: ATC Issues
30th Jan 2003, 13:57
Replies: 519
Views: 93,393
Posted By Grummaniser

MickyDrip wrote: As a lowly PPL(A) of...

MickyDrip wrote:


As a lowly PPL(A) of 6'ish years I am still close enough to my Air Law exams to remember who is responsible for terrain clearance under RIS.

I can't add anything of...
24th Sep 2002, 13:13
Replies: 12
Views: 1,585
Posted By Grummaniser

To help with understanding what you hear, you...

To help with understanding what you hear, you might consider getting an airband receiver and listening as often as possible to ATC at an airfield (preferably your own) which handles light aircraft....
Forum: ATC Issues
6th Nov 2001, 18:20
Replies: 36
Views: 1,761
Posted By Grummaniser

Post One of my biggest disappointments, when I was...

One of my biggest disappointments, when I was learning to fly, was to find that Sheffield was not going to be open to singles. I have family in Sheffield and live in the south. I grumbled about it on...
Showing results 1 to 34 of 34


 
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