taxying Viscount and HS748

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Nigel H-J
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taxying Viscount and HS748

Post by Nigel H-J »

Some time ago I read somewhere here about somebody wanting to know how to taxi the Viscount and HS748 smoothly, I have found a compromise with both a/c although many might have done this already.

Going into the a/c cfg I reduced toe brakes to .5 and found that when taxying and applying the brakes to keep the speed in check the a/c does not slow as rapidly as before thereby throwing the pax against their lap belts. Even when turning sharply and using the brakes quickly then releasing them as in cadence braking it improves the turning experience immensely and using the cadence method when in a straight line helps to maintain a steady trek to the runway.

As for braking after landing I have not noticed any problems of running out of runway either.

Just thought some might be interested especially when flying on the VA.

Regards
Nigel.

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Re: taxying Viscount and HS748

Post by cowpatz »

The secret to smooth taxiing is taking notice of when the props "bite". Around 10,400 RPM is when the props will start to provide useful thrust. Bring the power up slowly to this setting and then gently apply power on or off, as required, to obtain the desired thrust level.

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Garry Russell
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Re: taxying Viscount and HS748

Post by Garry Russell »

In real life this could be seen...or heard :tunes:

As the aircraft started moving power was eased back :)

In the case of the Viscount and Argosy....all four would be opened up until the first pitch change and then as soon as it moved right back on all and the inners opened up enough to continue the momentum. Taxyiing continued on the inners alone using brakes to maintain the speed which on the Viscount was 30-35 MPH

The unrealistic too slow limits for the VA makes it hard to taxi correctly.

Lovely sound btw.... as four came down and two came back up before they had settled :tunes: :tunes:

According to contemporary reports the Dart was found to be difficult to taxi precisely so the adopted procedure was to set the throttle and control speed on the brakes. The problem with FS is the lack of progressive baking and to use the brakes is to effectively stab them full on where all you really need is a touch here and there.

Driving then along on the ground is one of those this FS does not do well as the ground behaviour is tied in with flight dynamics so you can't really get it to behave correctly on the ground without adversely affection behaviour in the air :(

You can help it, but sadly never really fix it *-)
Garry

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WhisperJet
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Re: taxying Viscount and HS748

Post by WhisperJet »

Hello Nigel,

probably you're talking about the thread I started some time ago...

http://www.cbfsim.org/cbfsim/cbfsBB/vie ... =6&t=15844

Personally I wouldn't dare to make changes in the aircraft.cfg as I take the 748 to airports with really short runways. As for the problem itself I can only report that with some experience I manage to gently bring the props up to a rate where they provide enough thrust to get the aircraft rolling. After doing so by using my joystick thrust lever I then take some power off using the F-button. Works quite well.

Happy landings, :)

Nick

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DaveB
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Re: taxying Viscount and HS748

Post by DaveB »

Garry's comment about the lack of progressive braking in FS sums the situation up perfectly.. which reminds me.. I must adjust the braking effectiveness on my AI Herald :lol:

Nigel may well have noted the recent thread on the Nimrods brakes too ;) They're setup to give a more progressive feel while the aircraft is moving but a consequence is that it won't hold the aircraft still on full throttle. A consequence maybe but not a problem ;)

I'm surprised the Herald hasn't been mentioned before (could be no one flys it!) as it's no less difficult to taxi than the 748 and the brakes are phenomenal! Watching my AI aircraft land at Jersey (which they do with monotonous regularity).. it almost stops as it lands and has to accelerate again to reach the first turnoff :lol:

ATB

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Nigel H-J
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Re: taxying Viscount and HS748

Post by Nigel H-J »

Hi Nick, yes that is the one but darn me could not find the post!! :doh:

always found it a problem taxying iether a/c in FS and even tried using just 2 inners as Garry wrote but on using the brakes it was always frustrating in that it resembled an emergency stop in some cases!! :lol: No fault of Rick just one problem of FS.

The idea came about after reading one of Daves' replies to a query regarding altering brakes in the a/c.cfg and thought to myself why not just try it and find that using this setting suits me (everyone to there own I guess) ;) As for landing on short runways requiring max braking due to r/w length or rather the lack of it....have not yet tried that yet but will be interesting to find out tomorrow. Just wonder what the airports charge for an overrun recovery :worried:

Regards
Nigel.

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DaveB
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Re: taxying Viscount and HS748

Post by DaveB »

Just wonder what the airports charge for an overrun recovery
It's gotta be less than they charge for using their car parks :lol:

ATB

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