[jhb_airlines] Re: F100 performance

  • From: "Tom Smith" <ftd.smith@xxxxxxxxxxxxxx>
  • To: <jhb_airlines@xxxxxxxxxxxxx>
  • Date: Fri, 24 Dec 2004 21:12:14 -0000

yes I was surprised to learn how old it is and how long ago they went bust
----- Original Message ----- 
From: <gwinsk@xxxxxxx>
To: <jhb_airlines@xxxxxxxxxxxxx>
Sent: Friday, December 24, 2004 7:38 PM
Subject: [jhb_airlines] Re: F100 performance


> You'll have to stop this working thing, it's softening tha brain, lad.
> Listen carefully, I shall say this only once, I think it's the best 
> download since the Falcon
> 50 came out, in the days of FS2002. That's why you had the pleasure of 
> parking next to
> one, at Heathrow, on Wednesday. It's good enough to make an effort to put 
> right any
> minor areas where performance isn't the same as the real thing. Pity they 
> went bust.
>
> Gerry Winskill
> gwinsk@xxxxxxx
>
> On 24 Dec 2004 at 18:53, Tom Smith wrote:
>
>> about time you said something good about it
>> Tom
>> ----- Original Message ----- 
>> From: <gwinsk@xxxxxxx>
>> To: <jhb_airlines@xxxxxxxxxxxxx>
>> Sent: Friday, December 24, 2004 6:35 PM
>> Subject: [jhb_airlines] Re: F100 performance
>>
>>
>> > Another nice gauge is the Pushback button. I'd previously thought
>> > the one fitted to the A320 to be good; complete with options to turn
>> > left and right. The Fokker button is simpler. Throw in a 1 or 2 and
>> > it will turn. Better still, no ground handler!
>> >
>> > Gerry Winskill
>> > gwinsk@xxxxxxx
>> >
>> >
>> > On 24 Dec 2004 at 17:33, Bones wrote:
>> >
>> >> 1. Fuel for planned flight
>> >> 2. Fuel to reach alternative airfield
>> >> 3. Add 10% to the above total
>> >> 4. Fuel for 45 minutes holding
>> >> 5. Taxy fuel
>> >>
>> >> You remind me of something I forget to mention before. I like the
>> >> switch = on the PF panel that allows you to switch from Nav to GPS
>> >> to FNav. It's the first time I have seen such a beast and it was
>> >> really handy to enable = the FSNav readout on the EHSI. Getting DME
>> >> readouts to fixes and even your temporary fixes dragged from screen
>> >> to plan was very nice indeed..
>> >>
>> >> bones
>> >>
>> >> -----Original Message-----
>> >> From: jhb_airlines-bounce@xxxxxxxxxxxxx
>> >> [mailto:jhb_airlines-bounce@xxxxxxxxxxxxx] On Behalf Of
>> >> gwinsk@xxxxxxx Sent: 24 December 2004 17:12 To:
>> >> jhb_airlines@xxxxxxxxxxxxx Subject: [jhb_airlines] Re: F100
>> >> performance
>> >>
>> >>
>> >> I've flown both the F70 and F100-620, today, to record fuel useage
>> >> in = climb, cruise and=20 descent, for entry to FSNav. FSNav then
>> >> gives me the fuel required for = the flight. Last=20 week, using
>> >> the deafault FSNav figures for the F100, I finished a flight into
>> >> Manchester=20 and, whilst waiting for FS9 ATC clearance to cross
>> >> 24R, all went quiet; = I'd run out of=20 fuel.
>> >>  Assuming the figures I've put into FSNav are realistic, I know I
>> >>  should
>> >> allow extra for=20
>> >> possible diversion to a named alternate but what other reserves
>> >> should I carry?
>> >>
>> >> Gerry Winskill
>> >> gwinsk@xxxxxxx
>> >>
>> >>
>> >>
>> >> On 24 Dec 2004 at 16:58, Bones wrote:
>> >>
>> >> > Thanks for that - I was so busy recording values that I forgot
>> >> > to=20 adjust =3D the rpm value up from 98. That extra 10 will
>> >> > make a lot of=20 difference.
>> >> >=20
>> >> > Just a quick recap on weights.
>> >> >=20
>> >> > Empty Weight - (EW or AEW) self explanatory but this is a
>> >> > measured=20 value =3D for each aircraft. It includes everything
>> >> > bar the loadable=20 weights. On some aircraft it even includes
>> >> > unusable fuel weight and=20 oil.
>> >> >=20
>> >> > Maximum All Up Weight (MAUW) is the certified maximum weight
>> >> > for=20 flight. =3D You cannot exceed this without implications on
>> >> > structural=20 integrity. Often called MTOW (Maximum Take Off
>> >> > Weight).
>> >> >=20
>> >> > Maximum Ramp Weight (MRW) is the same as above but will include
>> >> > the =
>> >> =3D=20
>> >> > extra fuel for taxy. MRW - taxy fuel =3D3D MAUW.
>> >> >=20
>> >> > Maximum Zero Fuel Weight (MZFW) is the maximum weight an aircraft
>> >> > can=20 =3D carry before any fuel is loaded. Effectively it is
>> >> > Empty Weight =
>> >> plus=20
>> >> > Payload. =3D So, the max payload that can ever be carried is MZFW
>> >> > - =
>> >> EW.
>> >> >=20
>> >> > Maximum Landing Weight (MLW) is the weight at which the aircraft
>> >> > has=20 got =3D to be down to before a landing can be made.
>> >> > Exceeding MLW =
>> >> means=20
>> >> > greater =3D stress on the landing gear. This is one reason why
>> >> > you =
>> >> hear=20
>> >> > of aircraft having =3D to circle around for a long time to dump
>> >> > fuel=20 before making a landing. It =3D is quite a low figure.
>> >> >=20
>> >> > The usual calculation method is the start off with Empty weight
>> >> > and=20 add =3D your payload. If this is above MZFW you have to
>> >> > shed load. =
>> >> Next=20
>> >> > you add your fuel weight to get your Gross Weight. This must be
>> >> > =3D=20 below MRW. Take away your taxi fuel and the resultant
>> >> > figure has to be =
>> >>
>> >> > below =3D MAUW.
>> >> >=20
>> >> > If things are OK to this point you then work out your sector fuel
>> >> > burn =
>> >>
>> >> > =3D and subtract this weight from the Gross Weight to get actual
>> >> > =
>> >> landing=20
>> >> > weight. Obviously this has to be below the MLW figure and if it
>> >> > isn't=20 you have =3D to shed either fuel or payload..
>> >> >=20
>> >> > bones
>> >> >=20
>> >> > -----Original Message-----
>> >> > From: jhb_airlines-bounce@xxxxxxxxxxxxx=20
>> >> > [mailto:jhb_airlines-bounce@xxxxxxxxxxxxx] On Behalf Of
>> >> > gwinsk@xxxxxxx Sent: 24 December 2004 15:56 To:
>> >> > jhb_airlines@xxxxxxxxxxxxx Subject:=20 [jhb_airlines] Re: F100
>> >> > performance
>> >> >=20
>> >> >=20
>> >> > Without increasing the thrust scalar, my climb, at max allowable
>> >> > AUW,=20 =3D didn't run out of=3D20 puff as badly as yours. I
>> >> > altered the =
>> >> Autopilot=20
>> >> > Autothrottle_Max_rpm =3D from 98 to 108. That=3D20 was advised
>> >> > for =
>> >> most=20
>> >> > jets, I think in the Flightsimvets Forum.
>> >> >=20
>> >> > Gerry Winskill
>> >> > gwinsk@xxxxxxx
>> >> >=20
>> >> >=20
>> >> >=20
>> >> > On 24 Dec 2004 at 15:34, Bones wrote:
>> >> >=20
>> >> > > Just a quickie before I have to nip out.
>> >> > >=3D20
>> >> > > The F100 has an empty weight of 60631lb. In the notes it says
>> >> > > the =20
>> >> > >MZFW =3D
>> >> >=20
>> >> > > =3D3D is 79000lb so this means your maximum payload (pax and
>> >> > > cargo)  =
>> >>
>> >> > >is=3D20 limited to 18369lb. It's dead easy to exceed this as it
>> >> > >is in =
>> >> =20
>> >> > >real=3D20 life but that's =3D3D your base figure for passenger =
>> >> loading.=20
>> >> > >=3D20  Assuming you hit this figure you are only going to
>> >> > >have=20 another=3D20  165000lb =3D3D for fuel. In other words
>> >> > >never expect to =
>> >>
>> >> > >fill the  tanks=3D20 full unless you have =3D3D got a really low
>> >> > >pax=20 load. About  80% is the=3D20 maximum you will achieve.
>> >> > >Again =3D3D =
>> >> this=20
>> >> > >is like real  life - aircraft=3D20 hardly ever fly with full
>> >> > >fuel =
>> >> load=20
>> >> > >now.  Obviously it's better to fly=3D20 with minimum fuel load
>> >> > >to=20 increase  =3D3D performance and decrease costs=3D20 (what
>> >> > >is the =
>> >> point of=20
>> >> > >lugging  a huge weight of fuel uphill only to=3D20 bring it
>> >> > >down=20 again). =3D20
>> >> > > With the F100 loaded up to max I took off and set her in a
>> >> > > climb at =3D
>> >> > =3D3D=3D20
>> >> > > 1800fpm. At FL100 I increased speed from 250kts to 280kts as
>> >> > > per =20
>> >> > >the=3D20 handbook but =3D3D she was running out of puff at
>> >> > >FL150. At  =
>> >>
>> >> > >FL150 I=3D20 dropped ROC to 1500fpm. At FL200 I dropped it again
>> >> > >to =20 1000fpm and at=3D20 FL250 down further to 800fpm. =3D3D
>> >> > >At FL270 I =20 reduced it to 500fpm and=3D20 the aircraft held
>> >> > >280kts and 500fpm up  =
>> >>
>> >> > >=3D3D to FL310. I didn't try for=3D20 the operational ceiling of
>> >> > >=
>> >> FL350 =20
>> >> > >but I'd guess =3D3D you would have to=3D20 reduced climb rate
>> >> > >even =20 further. =3D20
>> >> > > During all this time N2 stayed at 97.9.
>> >> > >=3D20
>> >> > > HC@xxxxxxxxxx
>> >> > > http://fsaviation.net
>> >> > >=3D20
>> >> > >=3D20
>> >> >=20
>> >> >=20
>> >> >=20
>> >> >=20
>> >>
>> >>
>> >>
>> >>
>> >
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> 


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