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-   -   Citation II performance question. (https://www.pprune.org/biz-jets-ag-flying-ga-etc/444422-citation-ii-performance-question.html)

CaptainProp 2nd Mar 2011 14:20

Citation II performance question.
 
I know close to nothing about Citations and I would appreciate if you guys with Citation experience could help me out...

Does operating a Citation IISP in and out of a 3000' runway, in temperatures up to 30-35 degrees, sound like something you would / could do regularly?

Thanks!

CP

His dudeness 2nd Mar 2011 14:27

What payload? What elevation? Commercial or privat?

Edit: found my old FSI 550/551 Checklist:

Numbers for 15 ° Flaps / 20°C / SL: MTOW for the IISP is 12500lbs...
T/O LDR unfactored
13300lbs 3270ft 2430ft
12000lbs 2640ft 2230ft
11000lbs 2240ft 2130ft


Numbers for 15 ° Flaps / 30°C / SL:

13300lbs 4010ft 2530ft
12000lbs 3080ft 2270ft
11000lbs 2560ft 2160ft

Numbers for 40°C / SL

13300lbs 4750ft 2630ft
12000lbs 3740ft 2420ft
11000lbs 3020ft 2200ft

Numbers for 20°C / 1000ft:

13300lbs 3380ft 2540ft
12000lbs 2840ft 2270ft
11000lbs 2400ft 2170ft

Numbers for 30°C / 1000ft:

13300lbs 4290ft 2650ft
12000lbs 3350ft 2310ft
11000lbs 2740ft 2210ft

Numbers for 40°C / 1000ft

13300lbs 5330ft 2770ft
12000lbs 4080ft 2350ft
11000lbs 3280ft 2240ft

I don´t recall the MLW, I think it was something like 11800lbs?

For 1,67, the LDR should be 1796 ft or less. So no joy there. 1,25 - what we use in our coorperate FD would require 2400, thats no prob I´d say.

CaptainProp 2nd Mar 2011 14:51

Sorry. Not commercial, less than 500' airport elevation, pilot + 2 pax and little or no luggage.

His dudeness 2nd Mar 2011 14:59

I´m trying, but I really can´t recall the empty or bow of the sled I flew.
Has someone got numbers available?

FlyingGasMain 3rd Mar 2011 07:35

We fly Citation IIs on an AOC and 3000' sounds very unlikely if you are applying commercial safety factors. I think those FSI figures given above should give you a pretty good idea for unfactored operation

CaptainProp 3rd Mar 2011 09:24

Thanks for your replies so far!

I have received more info on the specific aircraft now.

Basic empty: 8200

MTOW 12.500 lbs (Ramp 12.700)

MLW 12.000 lbs

Looks like operating single pilot, 2 pax, no bags, allows just under 4000 lbs of fuel to be carried and the limitation (T/O unfactored) would be about 20˚C.

How far would one get with 4000 lbs of fuel with one of these things? If its 30˚C, how far would 3000 lbs of fuel take you?

A rough idea would be appreciated.

Thanks again!

CP

Chilli Monster 3rd Mar 2011 12:42

Fuel planning figures are 1200lbs for the first hour, 900lbs each subsequent hour.

So - plan on 3000lbs giving you 600nm plus holding plus diversion, 4000lb will give you 900nm. Figures are approximate but you won't get "caught short" using these.

His dudeness 3rd Mar 2011 14:40

Just to make it clear, the T/O figures are FAR 25 figures, so its the longest of
ACC-GO, ACC-STOP or All Eng TOD by 1,15.
Landing figures (the figures on the right coloum) are without factor.

As for the landing, if the runway is grooved thaat would be a real good thing, ours (LDA 3323ft / C680) is grooved and that makes a biiiiig difference.
Has the airplane T/Rs? IIRC there are some CIISPs without them to save weight...

BestAviation 5th Mar 2011 10:56


Just to make it clear, the T/O figures are FAR 25 figures, so its the longest of
ACC-GO, ACC-STOP or All Eng TOD by 1,15.
With the exception of a very few scenarios (hot/high) the higher number is the ACC-STOP distance in the Citation II. Don't think I'd use that information for anything practical though.


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