HS748 Slewing

[austerdriver]

When ever I slew the HS748 in FS2004 the engines fail when I have finished slewing the aircraft. Has anybody else had this problem?

[DaveB]

Hi Austerdriver

I take it you mean the HS748 ;-) TBH.. this is the first such report I've heard of an engine failure after slewing and as the model has been out in the public domain for years, asking about a 'fix' is a bit premature. What OS are you running??

ATB

DaveB :tab:

[austerdriver]

Im running Windows XP home. Its the HS748 I meant to put.

[Fodda]

I think this problem has been reported on other aeroplanes. It's not so much a fault of the 748 but the way the Slew function works.

Basically if you look at the top of the screen (may need to set up the Shift-Z readout) when you slew any aeroplane the speed shown there refelects the Slew rate. So at maximum slew rate even a lowly Tiger Moth can register over 1000 KIAS of airspeed.

Usually this doesn't affect standard or default aeroplanes, but you may find that the extended complexities of the 748 (and others) means that the engine heat builds up incredibly quickly and when returning out of slew mode the engines fail.

Just my tuppence thrown into the ring. I seem to remember people seeing this problem with the A2A B377.

[DaveB]

Hi Gary

Tks for that.. it confirms what I was just about to say. On the 748, as soon as you start to slew.. the onboard systems detect the massive increase in speed and the engine overheat lamps come on. That said, I've just slewed over the UK enough to turn my lovely crisp textures into a hideous green goo and the engines remained lit after each slew :o

In all probability, it is the complexity of the systems that disagree with going from 185kias to 2500kias and I don't consider that a 'bug' ;-) Why my engines remained lit.. who knows. I certainly don't There could also be a problem slewing on the ground in that the generators may trip if the new location is a lot lower than your start point.. this caused by the onboard system detecting the jolt thinking it's a heavy landing. It's just not possible to model this stuff accurately and expect it to work under slew conditions ;-)

ATB

DaveB :tab:

[Garry Russell]

TBH I never slew

I use the map and drag the aeroplane to where I want and seems to do OK.....well I've never had a problem

I think slewing is quite a naff way of moving position.


Gary

[AllanL]

Last free pint for you young Garry at the Vanguard and Ferret.

Thinking about it, I do believe Master Rick slaved away over hot polys for it to be taxied about when not airborne, could be wrong though....

[Garry Russell]

Takes too long to taxy to the alps and it doesn't climb the mountains very easily

That's my defense

Garry

[austerdriver]

Would starting the flight in the default Cessna 172SP then changing to the HS748 work?

[forthbridge]

Would starting the flight in the default Cessna 172SP then changing to the HS748 work?

You should always start with a default aircraft then load any add-on model. To be honest, you should also avoid slewing and especially in the 748. I'm not sure if your engines are overheating or you're tripping the feather sensor (in which case you can hit the switches on the panel and they will 'restart'.

If you get into the 'right' winds, I have known that happen (or with fast descents). Prety sure the rapid speed change of the slew is to blame.

EDIT:
Further questions: DO you load the 748 when you start the flight, or a default aircraft firts?
Are you following the full checklist particularly engine management?

I've just tried slewing like a madman, and could not trip the props... but the usual trick of closing the throttles and slamming them fully forward did the trick,** as did a a sort of idling dive and small power application.

What lights are appearing on the panel when the failure occurs?

**The trick is to imagine you are Dave B controlling a beer handle at the bar... slowly does it!