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Search: Posts Made By: Sven Sixtoo
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1st Apr 2018, 20:04
Replies: 635
Views: 215,510
Posted By Sven Sixtoo

I can confirm this from experience. The most...

I can confirm this from experience. The most surreal part of my Martin-Baker ride (0 ft / about 65 kts) was looking up (in my frame of reference) to watch RAF Valley receding rapidly in the...
9th Mar 2014, 20:46
Replies: 11,824
Views: 21,468,122
Posted By Sven Sixtoo

Having finally got to the end of the thread,...

Having finally got to the end of the thread, another bit of data of dubious relevance.

I was part of the crew of one of the recovery helicopters at Lockerbie. The debris trail was 70 miles long,...
Forum: Rotorheads
14th Feb 2014, 19:53
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

Absolutely possible, as are a number of other...

Absolutely possible, as are a number of other cockpit scenarios.

The one of real interest is why both transfer pumps were selected OFF. Firstly, I'm not keen on a fuel system that needs playing...
Forum: Rotorheads
20th Dec 2013, 22:07
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

Hi Anfi and all On the Sea King, it having...

Hi Anfi and all

On the Sea King, it having had various sorts of TR failures both control and drive over the years, we practised to the nth degree all the combinations. One thing I'm taking from...
Forum: Rotorheads
18th Dec 2013, 20:34
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

Might I suggest that if the rotor had stopped it...

Might I suggest that if the rotor had stopped it would nevertheless have quite a bit of drag (the instant some airflow gets hold of it it starts turning which creates lift which creates drag which...
Forum: Rotorheads
16th Dec 2013, 19:48
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

I have no statistics, but I believe yes that is a...

I have no statistics, but I believe yes that is a reasonable statement (I applied for lots of such jobs when I left).

Do remember that military pilots vary a lot in their skillset and experience...
Forum: Rotorheads
9th Dec 2013, 20:08
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

Chopjock Because that (given the facts of a...

Chopjock

Because that (given the facts of a call to enter the zone at 2218 and catastrophe at 2222) WOULD have been grounds for a PAN call at least when the first engine failed and the pilot being...
Forum: Rotorheads
9th Dec 2013, 19:52
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

Indeed, which may either be significant to other...

Indeed, which may either be significant to other matters or may be that they are mangled beyond recognition.
Forum: Rotorheads
9th Dec 2013, 19:47
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

High Spirits AAIB say "No evidence of...

High Spirits

AAIB say "No evidence of mechanical failure".

Now I am quite aware that absence of evidence does not equal evidence of absence. But AAIB are the most conservative of bodies in...
Forum: Rotorheads
9th Dec 2013, 19:42
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

Sorry, you will need one of the type...

Sorry, you will need one of the type professionals to answer that.
Forum: Rotorheads
9th Dec 2013, 19:35
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

Grenville I think what we are fishing for is...

Grenville

I think what we are fishing for is that in most (all?) serviceable and reasonably modern multi-engine helicopters, there is nothing you can do with the controls that will significantly...
Forum: Rotorheads
9th Dec 2013, 18:58
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

Fuel faults

I throw this in for one of the EC135 operators / engineers to comment, as I can't readily lay my hands on a LP fuel system schematic.

In the Sea King, we had a vaguely similar fuel system, in that...
Forum: Rotorheads
9th Dec 2013, 18:39
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

Rotor brakes

Sanus

Agreed. You do not need a fully applied rotor brake or anything like it to cause a fire. There will be people on here who know / recollect far more than I do, but how about the Merlin Mk1...
Forum: Rotorheads
9th Dec 2013, 14:48
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

From the BBC Website

Clutha helicopter crash: No mechanical fault found

Investigators have found no evidence of engine or gearbox failure in the police helicopter which crashed into a busy pub in Glasgow killing nine...
Forum: Rotorheads
3rd Dec 2013, 21:29
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

BC An excellent point. I should have...

BC

An excellent point.

I should have thought of it. All of us who do / did emergency service work rely greatly on knowledge of the patch. It is unlikely that any pilot living in the Glasgow...
Forum: Rotorheads
3rd Dec 2013, 20:38
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

Stu B (and all) I said more or less the same...

Stu B (and all)

I said more or less the same a bunch of pages back.

One thing nobody but me seems to have commented on is the (relatively) small hole in the roof about 20 ft or so south-east (I...
Forum: Rotorheads
2nd Dec 2013, 20:19
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

If the aircraft was subject to a frontal...

If the aircraft was subject to a frontal deceleration of 60g on the forward fuselage, I'm surprised that the engines, drive train and other heavy stuff on top stayed attached.
Forum: Rotorheads
2nd Dec 2013, 19:54
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

See BBC News - Glasgow helicopter crash:...

See

BBC News - Glasgow helicopter crash: Clutha bar building 'hampered recovery work' (http://www.bbc.co.uk/news/uk-scotland-glasgow-west-25190050)

which shows the internal layout of the...
Forum: Rotorheads
2nd Dec 2013, 14:52
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

Sven 62: When you flare at the bottom of your...

Sven 62: When you flare at the bottom of your auto (even in this case) the Nr increases, not decreases. So assuming he misidentifies the landing surface and flares harder to "gain height", the Nr...
Forum: Rotorheads
2nd Dec 2013, 13:52
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

Looking at the roof in the video, I'm going to...

Looking at the roof in the video, I'm going to speculate.

This was a successful autorotative forced landing. At the last second the pilot realised he was coming into a roof and not the ground,...
Forum: Rotorheads
2nd Dec 2013, 07:13
Replies: 2,934
Views: 2,074,123
Posted By Sven Sixtoo

Unless I have missed it, I don't think that it...

Unless I have missed it, I don't think that it has been mentioned that to complete a successful autorotative landing following a tail rotor (fenestron) drive failure, it is necessary to shut down the...
Forum: Rotorheads
1st Dec 2013, 09:03
Replies: 36
Views: 9,715
Posted By Sven Sixtoo

Sea King has a fuel jettison system. Routinely...

Sea King has a fuel jettison system. Routinely used on SAR Ops in situations where there just wan't enough power available (mountain downdraughts etc).
3rd Jul 2012, 19:55
Replies: 144
Views: 119,164
Posted By Sven Sixtoo

RAF SAR don't have AIS transmit. I don't think...

RAF SAR don't have AIS transmit. I don't think they ever got AIS receive either - certainly not before I left.

Sumburgh may have gone home - they have had a long day - but I'm sure Lossie will...
7th Jun 2012, 20:08
Replies: 100
Views: 19,480
Posted By Sven Sixtoo

Numerous trips of 10 seconds or less in Sea Kings...

Numerous trips of 10 seconds or less in Sea Kings coming out of maintenance.

If all 3 wheels left the ground, it went in the logbook. Minimum entry 5 minutes.

Also one very naughty trip Navy...
7th Jun 2012, 19:56
Replies: 30
Views: 9,422
Posted By Sven Sixtoo

William "Call me Captain"

BBC News - Prince William to command search and rescue missions (http://www.bbc.co.uk/news/uk-18354699)

Well done.
That's taken about 18 months including the mandatory co-pilot trip down the...
Showing results 1 to 25 of 489
 


 
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