Tail & Fin Sizing Revised

Tail Span (m) 4.61
Tail Chord (m) 1.21
Tail Root Chord (m) 1.73
Tail Tip Chord (m) 0.69
Tail c ̅ (m) 1.29
Fin Span (m) 2.13
Fin Chord (m) 1.42
Fin Root Chord (m) 2.19
Fin Tip Chord (m) 0.66
Fin c ̅ (m) 1.56
Tail Sweep Angle (o) 29.00 [2]
Fin Sweep Angle (o) 40.00 [2]
Tail Taper Ratio 0.40
Fin Taper Ratio 0.30

DOC (COST)

Everything is updated I used:

OWE = 3160 kg

MTOW = 4613 kg

Blocktime = 3.083

Mission Block Fuel Weight = 563 kg

Let me know if these values change!!!

Manufacturer study Price (MSP)	$3,900,000
Airframe Spaces	$279,221
Engine Spares	$332,337
Total Investment TI	$4,511,558
Depreciation (DEP) $/sector	$307.90
Interest (INT) $/sector	$215.53
Insurance (INS) $/sector	$22.36
Cockpit Crew cost per sector (CPC) $/sector	$1,172
Landing fees (LAF) $/sector	$27.68
Navigation Charges  (NAV) $/sector	$337.52
Fuel Cost (FC)   $ /gal	$518.3
Airframe maintenance Costs (AFM)  $/sector	$562.75
Labour Airframe Cost  $/sector	$533.62
Airframe Materials                  $/sector	$29.13
Engine Maintenance Cost (EMC)  $/ sector	524.9
Maintenance LABOUR	99.4
Maintenance Material    $/sector	226.6
Engine Maintenance Cost	198.9
AIRCRAFT TRIP COST   cents/nm	$34.15

Useful links

Propulsion efficiency http://www.stanford.edu/~cantwell/AA283_Course_Material/AA283_Course_Notes/Ch_06_Turboprop_Cycle.pdf

How Propeller works:

http://www.mh-aerotools.de/airfoils/propuls4.htm

cg loops and cg limits

mo

Updated Mission Performance (it will change again though)

OWE (kg) =3160

TOW (kg) =  4594 kg
 Fuel Loaded= 563 kg
Payload = 890 kg

Mo this TOW that I found is not the MTOW it is the actual TOW which is less than the MTOW cause it loses some fuel at taxi out, start up.

our MTOW = 890 + 3160 + 563 = 4613 kg


Ilkay have you got any value for T/W ratio for our engine? or sea level static thrust? I want to try the method Dr Greenwell suggested but it is asking for these values.

Niv

new table

updated one

	lbs	kg	%	%	x	x*m
wing weight	1397.21	633.76	14.3	0.5	4	2535
fuslage weight	582.11	264.04	6.0	0.4	2.13	562.4
empennage  w	190.33	86.33	1.9	0.43	4.3	371.23
undercarriage w	400.70	181.75	4.1	0.35	3.5	636.14
landing gear	407.96	185.05	4.2	0.15	1.5	277.57
nacelle weight	227.41	103.15	2.3	0.5	4	412.61
installed engin w	1810.90	821.41	18.5	0.5	4	3285.6
propeller w	225.31	102.20	2.3	0.5	4	408.8
fuel system	57.94	26.28	0.6	0.48	4.8	126.14
flight controle weight	228.91	103.83	2.3	0.25	2.5	259.58
hydraulic system	58.54	26.55	0.6	0.45	4.5	119.48
electrical sys	283.02	128.38	2.9	0.26	2.6	333.78
aircon system	113.81	51.62	1.2	0.4	4	206.49
avionic sys	156.37	70.93	1.6	0.1	1	70.928
furnishing weight	574.80	260.72	5.9	0.43	4.3	1121.1
miscellanious operating	47.50	21.55	0.5	0.15	1.5	32.318
flight crew	205	92.99	2.1			10759
	OWE	3160.53			Xcg	3.404248

the new OWE = 3160 kg
i need the fuel weight to get new MTOW then update my OWE !!!
the rest of weight and positions are correct
fahim i havnt done the loops i have been updating the weights
i havnt even started my other part that weight 13 marks. i could do with little help to be honest. seems that me and ilkay going to end up more than certain people. (17 marks its loads), if someone hasnt got much to do we could do with little help at least loading loop, so i can start my 30 pages of writing.


 

lol

Tailplane sizing information

Tail Span (m)	4.85
Tail Chord (m)	1.16
Tail Root Chord (m)	2.38
Tail Tip Chord (m)	1.22
Fin Span (m)	2.15
Fin Chord (m)	1.44
Fin Root Chord (m)	1.90
Fin Tip Chord (m)	0.98
Tail Sweep Angle (o)	29.00 [2]
Fin Sweep Angle (o)	40.00 [2]

Bruce Deep