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15th Jun 2019, 21:54
Replies: 461
Views: 909,663
Posted By Nadar

According to the interim report, every blame...

According to the interim report, every blame points to the "PIC". What I'm wondering is to which degree one can trust such a report being unbiased, considering that this comes from Russia and Putin...
Forum: Rotorheads
11th Dec 2018, 15:19
Replies: 1,173
Views: 538,543
Posted By Nadar

Regarding the TR control, I think there are...

Regarding the TR control, I think there are several slightly different angles at play here: 1) In the control system on the 169 physically connected so that it's possible, given enough force to...
Forum: Rotorheads
7th Dec 2018, 19:16
Replies: 1,173
Views: 538,543
Posted By Nadar

@Ahernar How do you think humans deal with a 130...

@Ahernar How do you think humans deal with a 130 RPM fuselage? I think you might as well crash to the ground...

Since there is a lot of speculation about all kind of (unrealistic or irrelevant)...
Forum: Rotorheads
2nd Dec 2018, 01:22
Replies: 150
Views: 11,253
Posted By Nadar

Just to make it clear, my comment about...

Just to make it clear, my comment about autorotation was with the assumption that the generator would then be dead, and putting enough heavy and possibly explosive batteries in a helicopter to have...
Forum: Rotorheads
1st Dec 2018, 19:24
Replies: 150
Views: 11,253
Posted By Nadar

Most things have already been tried as already...

Most things have already been tried as already mentioned in this thread. What would surprise me is if an electric tail rotor would be competitive when it comes to reliability and efficiency as long...
Forum: Rotorheads
1st Dec 2018, 17:32
Replies: 150
Views: 11,253
Posted By Nadar

I thought this was just a joke/trolling, but...

I thought this was just a joke/trolling, but since it seems that some of you are serious:

I can see only one thing that speaks for an electric TR and that is that you wouldn't need pitch...
Forum: Rotorheads
1st Dec 2018, 00:27
Replies: 150
Views: 11,253
Posted By Nadar

Everybody relax, the above statement should make...

Everybody relax, the above statement should make it perfectly clear that he's just trolling you.
Forum: Rotorheads
1st Dec 2018, 00:27
Replies: 1,173
Views: 538,543
Posted By Nadar

Everybody relax, the above statement should make...

Everybody relax, the above statement should make it perfectly clear that he's just trolling you.
Forum: Rotorheads
6th Nov 2018, 15:28
Replies: 1,173
Views: 538,543
Posted By Nadar

I think there are two different "neutral"...

I think there are two different "neutral" concepts in play here now. Neutral can mean no TR blade pitch, which should be roughly the same as a TR drive failure, but neutral can also mean "provide...
Forum: Rotorheads
5th Nov 2018, 14:11
Replies: 1,173
Views: 538,543
Posted By Nadar

Could this...

Could this (https://www.cornwalllive.com/news/cornwall-news/isles-scilly-helicopter-grounded-after-2166254) be the source of the rumor?
Forum: Rotorheads
31st Oct 2018, 17:24
Replies: 1,173
Views: 538,543
Posted By Nadar

I'm amazed by the low quality of the (Sun) video,...

I'm amazed by the low quality of the (Sun) video, and I've assumed that they have a higher quality version but have opted to share a highly compressed version online. The sun has now updated their...
Forum: Rotorheads
10th Oct 2016, 01:29
Replies: 1,918
Views: 1,457,196
Posted By Nadar

EASA have effectively banned the use of the type...

EASA have effectively banned the use of the type of second stage planet gears involved in the accident(s?). Any 225LP and 332L2 with that type og second stage planet gears have to replace them with...
Forum: Rotorheads
11th Jul 2016, 15:30
Replies: 1,918
Views: 1,457,196
Posted By Nadar

Excepts when it doesn't. Humans ofter...

Excepts when it doesn't.

Humans ofter overestimate their own level of control over things, personally I prefer robust design over overconfidence in monitoring systems as a general principle. That...
Forum: Rotorheads
9th Jul 2016, 23:14
Replies: 1,918
Views: 1,457,196
Posted By Nadar

This isn't really on topic, but I can't help it,...

This isn't really on topic, but I can't help it, I have to give a comment to the "flying is safer" claim. I'm not afraid to fly at all and think the risk is reasonable under normal circumstances....
Forum: Rotorheads
29th Jun 2016, 10:15
Replies: 1,918
Views: 1,457,196
Posted By Nadar

As I have stated before, I don't give much for...

As I have stated before, I don't give much for any statement or report by any commercial organization. The reason is that the actual truth is so far down on their list of priorities. I doubt it was a...
Forum: Rotorheads
29th Jun 2016, 10:04
Replies: 1,918
Views: 1,457,196
Posted By Nadar

I think it's pretty clear. You must see this...

I think it's pretty clear. You must see this sentence in context of the previous:
They are saying that there were no warning signs before the accident neither from the chip detectors or HUMS for...
Forum: Rotorheads
18th Jun 2016, 07:06
Replies: 1,918
Views: 1,457,196
Posted By Nadar

Not sure how relevant this is, but I recently had...

Not sure how relevant this is, but I recently had to remove the inner race from a BMW rear wheel drive axle that just wouldn't move using any bearing puller available to me. It didn't split easily,...
Forum: Rotorheads
8th Jun 2016, 21:35
Replies: 1,918
Views: 1,457,196
Posted By Nadar

I'm not sure that the missing rollers are...

I'm not sure that the missing rollers are significant, it's very hard to imagine those falling out prior to the accident without being noticed in some way. I'm not sure they can escape while in one...
Forum: Rotorheads
8th Jun 2016, 01:06
Replies: 1,918
Views: 1,457,196
Posted By Nadar

This is already known, is described in the latest...

This is already known, is described in the latest preliminary report (http://www.aibn.no/Luftfart/Undersokelser/16-286?iid=19958&pid=SHT-Report-Attachments.Native-InnerFile-File&attach=1), and has...
Forum: Rotorheads
3rd Jun 2016, 06:41
Replies: 1,918
Views: 1,457,196
Posted By Nadar

@OMONEZ...

@OMONEZ (http://www.pprune.org/members/320311-omonez) I recognize most of the words you write as English, but the sentences might as well be Chinese to me - I don't understand what you're trying to...
Forum: Rotorheads
2nd Jun 2016, 03:11
Replies: 1,918
Views: 1,457,196
Posted By Nadar

@G0ULI...

@G0ULI (http://www.pprune.org/members/423021-g0uli) Every gram counts both for fixed wing and rotary (or cars for that matter). It all boils down to economics and market forces. Weight costs fuel...
Forum: Rotorheads
1st Jun 2016, 15:40
Replies: 1,918
Views: 1,457,196
Posted By Nadar

I've stated before that I am not a party to this...

I've stated before that I am not a party to this in any way, I don't work in the NS and I don't fly any helicopter on a regular basis. I do have experience with mechanics and metal in general in the...
Forum: Rotorheads
1st Jun 2016, 03:45
Replies: 1,918
Views: 1,457,196
Posted By Nadar

New speculation in the press

Some new speculation has hit the Norwegian press. Some of the information can be relevant if true. What seems to be the original article, by Bergens Tidende, is unavailable to me because it's behind...
Forum: Rotorheads
31st May 2016, 17:59
Replies: 1,918
Views: 1,457,196
Posted By Nadar

@Satcomm...

@Satcomm (http://www.pprune.org/members/456723-satcomm) I'm not a reporter or in any way a party in this. Neither have I landed on any specific theory that I believe strongly in.

I simply react to...
Forum: Rotorheads
30th May 2016, 17:06
Replies: 1,918
Views: 1,457,196
Posted By Nadar

Looking at AH's statements...

Looking at AH's statements (http://www.airbushelicopters.com/website/en/ref/Norway-Statement_347.html) I disagree, although the statement came after 4 days. After 2 days/48 hours they only lifted the...
Showing results 1 to 25 of 34
 


 
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