Things you always wanted to know the answer to [Vol. 3]

Things you always wanted to know the answer to [Vol. 3]

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glazbagun

14,282 posts

198 months

Wednesday 25th October 2017
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SpeckledJim said:
Is it technically possible (regardless of whether it's allowed) to reverse an airliner under its own steam? (reverse thrust and a dollop of throttle? or something else?)
Some turboprop planes can do this- they pitch their props to "push" backwards. I'm not sure if a turbofan could do the same with some thrust redirection but I'm sure a beard on here will know.

Speed 3

4,592 posts

120 months

Wednesday 25th October 2017
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SpeckledJim said:
Is it technically possible (regardless of whether it's allowed) to reverse an airliner under its own steam? (reverse thrust and a dollop of throttle? or something else?)
https://m.youtube.com/watch?v=lqZ83gJc7DE

P-Jay

10,579 posts

192 months

Wednesday 25th October 2017
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alorotom said:
glazbagun said:
TheLordJohn said:
Rostfritt said:
I was wondering this a while ago. Presumably they still own it and could rent it out. If they have a family they would live in it and would have to arrange for the mortgage to get paid while they were gone. You would think if you were single and could arrange for your home to be rented out you could leave prison having a good chunk of your mortgage paid off, however most people going into prison would have a lot of legal fees to pay if they were putting any effort into defending themselves.
The majority of people who go to prison won't pay rent, never mind own a house and have a mortgage to pay.
Good for them, but I bet there's others for whom a year in prison would ruin them economically. I wonder if it's taken into account when sentencing?

Shelter website on 'how not to lose your home if you go to prison' makes it look as though it's down to you/fam/friends to deal with it:

https://england.shelter.org.uk/housing_advice/evic...
One of my first “proper” jobs was in debt control and when we were informed of any customer going to serve time at her majesty’s the accounts were immediately defaulted and placed into judgement where a CCJ would be registered within a couple of days and the debts (unsecured) passed to a separate collection company

Effectively destroying someone’s credit rating in the space of a few days - I believe where secured debts are involved similar happens but the property is then foreclosed / repossessed
The rules have changed a lot in the last 10 years or so.

Its been a few years since I worked in FS, but I had the odd client end up doing a bit of 'bird'.

It really depends on the circumstances, if the 'lag' was 'of means' then the answer is 'not much' - usually their partner would handle their affairs while they were away - as long as the mortgage / rent gets paid the bank / landlord would probably never know. My clients were all HNWI or at least Business Owners - if they were lucky their business would carry on, bills paid and they'd return rehabilitated (ha, maybe) and pick up the pieces from there.

The one that I remember most clearly though was an ahole (no surprise, he did 12 months for arson / insurance fraud) his "right hand man" managed against all odds to keep the business afloat without access to a bank account for over a month using cash where he could, kept the staff in jobs and paid, kept the suppliers paid, kept the lights on etc. Days after his Boss got out he sacked him, so I heard pretty much gave him the count of 10 to get out or else, claiming the guy robbed him blind, but all concerned were sure that ahole arsonist spend every day inside getting more and more paranoid that his mate was going to screw him that he couldn't be convinced otherwise and as soon as he learned he'd taken cash out of the tills went ballistic.

I'm not really sure what would happen to your more common or garden criminals, as someone said most of the people going through the system are addicts and all but homeless or very young, For the odd Middle Class, Middle Aged first timer it will all depend on who can look after them, if they're likely to be away for more than a few years, they might as well let the chips fall where they may.

Rostfritt

3,098 posts

152 months

Thursday 26th October 2017
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StevieBee said:
On the same vein...do they have 'keys'.

Putting aside the obvious issues of accessing the airport, tracking and what you'd do with it, how easy is to TWOC an Airbus ?
Bigger ones generally don't, there is a good video explaining it by Captain Joe, who does an impressive amount of videos about aviation that are pretty interesting

https://www.youtube.com/watch?v=l8HHv7A5FJI

Basically no, they have a sticker over the door. I guess nobody parks one up where it isn't going to be kept in view of someone. Also the chance of getting access to one where it has enough fuel and everything else to get you anywhere is pretty slim. Unless they are parked up in storage they aren't going to be left for more than a night or two between flights anyway.

Eddie Strohacker

3,879 posts

87 months

Thursday 26th October 2017
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I know from my time in aviation logistics that charter aircraft are spun around in no time at all & for all intents & purposes are never vacated. The budget airlines must be the same & so that only leaves the scheduled services that get parked up with no one on board at all & I would imagine an army of bean counters are spending large portions of their working lives on ways to reduce that.

Shakermaker

11,317 posts

101 months

Thursday 26th October 2017
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Eddie Strohacker said:
I know from my time in aviation logistics that charter aircraft are spun around in no time at all & for all intents & purposes are never vacated. The budget airlines must be the same & so that only leaves the scheduled services that get parked up with no one on board at all & I would imagine an army of bean counters are spending large portions of their working lives on ways to reduce that.
Budget airlines will generally park up at their home base overnight, go to Dublin Airport at night and see rows and rows of Ryanair aircraft, Gatwick has loads of EasyJet aircraft parked up after they arrive as the last departure is around 11.30pm so anything that arrives after about 9pm will be parked up until the next morning.

Drive around Heathrow and you can see all the BA Aircraft parked up in the engineering area but even they are not there long-term, nor are they particularly far away from someone, even if they are vacant, they are monitored enough that someone would know if you tried to move it

But you'd do well to get close enough to try and steal one of course!

matchmaker

8,497 posts

201 months

Thursday 26th October 2017
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glazbagun said:
SpeckledJim said:
Is it technically possible (regardless of whether it's allowed) to reverse an airliner under its own steam? (reverse thrust and a dollop of throttle? or something else?)
Some turboprop planes can do this- they pitch their props to "push" backwards. I'm not sure if a turbofan could do the same with some thrust redirection but I'm sure a beard on here will know.
DHC Twin Otters certainly can - it's a weird sensation being in a plane going backwards under its own steam!

Mastiff

2,515 posts

242 months

Thursday 26th October 2017
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StevieBee said:
glazbagun said:
Exposing my ignorance of a far away land, but why is mongolia still there? It has China on one side and Russia/the USSR on the other. It's been a long time since Ghengis Khan was a threat- has it always been a sort of "neutral zone" between the two powers, or is it just such a terrain nightmare that neither side fancied having a bite?
It is a bit of an oddity.

Up until the early 90s it was a Russian 'satellite' state (independent but sort of connected). It then moved away from communism and adopted free market economics but is still more Russian than Chinese. So, the Chinese wouldn't want to upset the Russians by staking a claim and if the Russians wanted it back, there wouldn't be much in the way of opposition, even (probably) from mongolia itself; free market economics has yet to fully take off.

It has some impressive amounts of mineral wealth but extraction and transportation makes what's in the ground very expensive compared to that found elsewhere. As such, it doesn't really have much of what anyone wants.
What a great response - thanks.

RATATTAK

11,134 posts

190 months

Thursday 26th October 2017
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matchmaker said:
glazbagun said:
SpeckledJim said:
Is it technically possible (regardless of whether it's allowed) to reverse an airliner under its own steam? (reverse thrust and a dollop of throttle? or something else?)
Some turboprop planes can do this- they pitch their props to "push" backwards. I'm not sure if a turbofan could do the same with some thrust redirection but I'm sure a beard on here will know.
DHC Twin Otters certainly can - it's a weird sensation being in a plane going backwards under its own steam!
and so can C130s ... I've witnessed one C130 starting a facing C130 by using reverse pitch propellers ... Nigerian Airforce

Ginetta G15 Girl

3,220 posts

185 months

Thursday 26th October 2017
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We regularly used to reverse taxy the C-130, including 3 point reverse turns. thumbup

I am reliably informed that C-17 can reverse taxy as well.


Ginetta G15 Girl

3,220 posts

185 months

Thursday 26th October 2017
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RATATTAK said:
I've witnessed one C130 starting a facing C130 by using reverse pitch propellers ... Nigerian Airforce
Buddy-buddy start.

Although usually it is done with the a/c nose to tail.

Far safer than a 'windmill start' where you go charging down the R/W whilst unfeathering the dead engine in the hope it will spin up in the airflow before you go steaming off the end!

MartG

20,694 posts

205 months

Thursday 26th October 2017
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227bhp

10,203 posts

129 months

Thursday 26th October 2017
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Why are so many people on PH obsessed with talking about going to the toilet?

D_T_W

2,502 posts

216 months

Friday 27th October 2017
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Two questions

Ginetta G15 Girl said:
RATATTAK said:
I've witnessed one C130 starting a facing C130 by using reverse pitch propellers ... Nigerian Airforce
Buddy-buddy start.

Although usually it is done with the a/c nose to tail.

Far safer than a 'windmill start' where you go charging down the R/W whilst unfeathering the dead engine in the hope it will spin up in the airflow before you go steaming off the end!
How does that work then? I'm assuming the prop wash is used to spin the dead aircraft propellers in an attempt to start the engine?

MartG said:
Do you think somebody has ever managed to tip it on its arse by braking too hard whilst going backwards? You'd think a big dab of forward thrust would be a safer option than the brakes?

Ginetta G15 Girl

3,220 posts

185 months

Friday 27th October 2017
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D_T_W said:
How does that work then? I'm assuming the prop wash is used to spin the dead aircraft propellers in an attempt to start the engine?
Exactly.

D_T_W said:
Do you think somebody has ever managed to tip it on its arse by braking too hard whilst going backwards? You'd think a big dab of forward thrust would be a safer option than the brakes?
When reversing you keep your feet on the floor (ie off the toe brakes) because touching the brakes will tip the a/c on its backside. You are quite correct in assuming that cancelling reverse / forward thrust is used to arrest the reverse motion.

schmunk

4,399 posts

126 months

Friday 27th October 2017
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227bhp said:
Why are so many people on PH obsessed with talking about going to the toilet?
For example...?

PoleDriver

28,647 posts

195 months

Friday 27th October 2017
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227bhp said:
Why are so many people on PH obsessed with talking about going to the toilet?
Because that's where they do their surfing?

48k

13,116 posts

149 months

Friday 27th October 2017
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matchmaker said:
glazbagun said:
SpeckledJim said:
Is it technically possible (regardless of whether it's allowed) to reverse an airliner under its own steam? (reverse thrust and a dollop of throttle? or something else?)
Some turboprop planes can do this- they pitch their props to "push" backwards. I'm not sure if a turbofan could do the same with some thrust redirection but I'm sure a beard on here will know.
DHC Twin Otters certainly can - it's a weird sensation being in a plane going backwards under its own steam!
I believe at London City Airport back in the day they used to do powered pushbacks before it was decided that's a really bad idea and changed to park the aircraft nose-out on the stands.

singlecoil

33,702 posts

247 months

Friday 27th October 2017
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PoleDriver said:
227bhp said:
Why are so many people on PH obsessed with talking about going to the toilet?
Because that's where they do their surfing?
If they are surfing would they load up their woody first?

glazbagun

14,282 posts

198 months

Friday 27th October 2017
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Has there ever been a serious attempt to codify a method of arguing?

I guess there's peer review, but I'm thinking of two people sitting down and hashing out their differences until there is a logical and mutually agreed conclusion that doesn't allow for the same old things to be dragged up even if previously argued to death (as happens on NP&E, for instance).


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