[AIRCRAFT] Cessna O-1 Bird dog

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ysmajor
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[AIRCRAFT] Cessna O-1 Bird dog

Post by ysmajor » Mon Sep 22, 2014 1:49 am

A Cessna with teeth this time: The O-1 Bird dog, ready for duty.

Great forward air controlling from Korea to Vietnam, before the Skymasters, Broncos and Mohawks took over.

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I've painted two versions, based on the colour images of the Squadron 'O-1 in Action' books.
One green Army version, with two kinds of rocket pods but no gunner.
And one grey Air Force version, taking some artistic liberties in the decals, but it looks about right.
The latter one is a bit more fun as it has an M60 machine gun mounted on the side window. Two planes were ever outfitted this way, and though it wasn't that succesful in real life, it does make for more fun flying in YS. :)
You can choose to control the gun yourself or not.


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Gunny
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Re: [AIRCRAFT] Cessna O-1 Bird dog

Post by Gunny » Mon Sep 22, 2014 5:08 am

Major I think you had better look at your .dat files for the o-1s.They make no sense at all my friend. I mean over 300 kts for an o-1?
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Re: [AIRCRAFT] Cessna O-1 Bird dog

Post by ysmajor » Mon Sep 22, 2014 5:33 am

Ah didnt realise!
Thank you for noticing!

Just been focusing on those rockets.
Chucked it in a zip the moment that was fixed.

ill have a look sometime later then to update the files.

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Re: [AIRCRAFT] Cessna O-1 Bird dog

Post by iqmal_97 » Mon Sep 22, 2014 11:10 am

There's a sudden influx of utility aircraft being released lately.
I say, keep em coming. They deserve to be recognized and flown in YS.
Well done!
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[N007HA]Nynaiqmal_97 <= My usual online callsign
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Re: [AIRCRAFT] Cessna O-1 Bird dog

Post by ysmajor » Tue Sep 23, 2014 1:36 am

Have updated the DAT's.

Thanks again Gunny.

Gonna make an F9F Panther next...

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Re: [AIRCRAFT] Cessna O-1 Bird dog

Post by Gunny » Tue Sep 23, 2014 1:57 am

Something went wrong Major but this .dat file is the update you posted :?:

IDENTIFY "O-1_Birddog_(ARMY)"
CATEGORY NORMAL
AFTBURNR FALSE #HAVE AFTERBURNER?
PROPELLR 830HP #PROPELLER ENGINE This should read 250HP
WEIGHCLN 1.45t #WEIGHT CLEAN
WEIGFUEL 0.5t #WEIGHT OF FUEL
WEIGLOAD 0.2t #WEIGHT OF PAYLOAD
FUELABRN 0.0kg #FUEL CONSUMPTION WHEN USING AFTERBURNER
FUELMILI 0.08kg #FUEL CONSUMPTION AT MILITARY POWER

COCKPITP 0.10m 0.68m 0.0m #COCKPIT POSITION
EXCAMERA "copilot" 0m 0.7m -0.9m 0deg 0deg 0deg INSIDE
INSTPANL user/Major/vietnam/o1.ist
LEFTGEAR -1.12m -1.48m 0.58m #LEFT LANDING GEAR POSITION
RIGHGEAR 1.12m -1.48m 0.58m #RIGHT LANDING GEAR POSITION
WHELGEAR 0.0m 0.04m -5.25m #WHEEL POSITION
ARRESTER 0.0m 0.4m -5.25m

GUNINTVL 0.12
GUNPOWER 0
MACHNGUN 0.15m 0.40m 1.75m #MACHINE GUN POSITION
SMOKEGEN 0.05m 0.4m -4.94m #SMOKE GENERATOR POSITION
VAPORPO0 5.39m 1.1m -0.49m #VAPOR POSITION (Wings Swept Back or no-VGW)
VAPORPO1 5.39m 1.1m -0.49m #VAPOR POSITION (Wings Swept Back or no-VGW)
HTRADIUS 7m #OUTSIDE SPHERE RADIUS

STRENGTH 8

CRITAOAP 19deg #CRITICAL AOA POSITIVE
CRITAOAM -15deg #CRITICAL AOA NEGATIVE

CRITSPED 390km/h #CRITICAL SPEED Way to fast for both.
MAXSPEED 460km/h #MAXIMUM SPEED

HASSPOIL FALSE #HAS SPOILER?
RETRGEAR FALSE #HAS RETRACTABLE LANDING GEAR?
VARGEOMW FALSE #HAS VARIABLE GEOMETRY WING?

CLVARGEO 0.0 #EFFECT OF VARIABLE GEOMETRY WING FOR Cl
CDVARGEO 0.0 #EFFECT OF VARIABLE GEOMETRY WING FOR Cd
CLBYFLAP 0.35 #EFFECT OF FLAP FOR Cl
CDBYFLAP 0.6 #EFFECT OF FLAP FOR Cd
CDBYGEAR 0.5 #EFFECT OF GEAR FOR Cd
CDSPOILR 0.0 #EFFECT OF SPOILER FOR Cd

WINGAREA 16.2m^2 #WING AREA

MXIPTAOA 21.0deg #MAX INPUT AOA
MXIPTSSA 5.0deg #MAX INPUT SSA
MXIPTROL 72.0deg #MAX INPUT ROLL

REM CPITMANE corresponds to Spring Constant K
REM CPITSTAB corresponds to Damper Constant B
REM To be critically damped, B=2*sqrt(K)
REM 2% Settling Time=??

MANESPD1 40kt #MINIMUM MANEUVABLE SPEED
MANESPD2 70kt #FULLY MANEUVABLE SPEED
CPITMANE 8.9 #PITCH MANEUVERBILITY CONSTANT
CPITSTAB 2.0 #PITCH STABILITY CONSTANT
CYAWMANE 5.0 #YAW MANEUVABILITY CONSTANT
CYAWSTAB 3.0 #YAW STABILITY CONSTANT
CROLLMAN 1.8 #ROLL MANEUVABILITY CONSTANT

CTLLDGEA TRUE #CONTROL LANDINGGEAR
CTLBRAKE FALSE #CONTROL BRAKE
CTLSPOIL 0.0 #CONTROL SPOILER
CTLABRNR FALSE #CONTROL AFTERBURNER
CTLTHROT 0.0 #CONTROL THRUST
CTLIFLAP 0.0 #CONTROL FLAP
CTLINVGW 0.0 #CONTROL VARIABLE GEOMETRY WING
CTLATVGW FALSE #CONTROL AUTO VARIABLE GEOMETRY WING

POSITION 0m 3ft 0m #POSITION
ATTITUDE 45deg 0deg 0deg #ATTITUDE
INITFUEL 75% #INITIAL FUEL
INITLOAD 0.0t #INITIAL PAYLOAD
INITSPED 0.0MACH #INITIAL SPEED

MAXNMRKT 14
HRDPOINT 2.5m 0.8m -0.2m RKT*7
HRDPOINT -2.5m 0.8m -0.2m RKT*7
LMTBYHDP TRUE #Limit Max Num Weapon by Hardpoint
RKTVISIB FALSE

GUNPOWER 1
INITIGUN 0 #INITIAL GUN
INITRCKT 14 #INITIAL ROCKET

REM ClZero,CdZero is fixed by Cruising condition
REFVCRUS 450km/h #CRUISING SPEED
REFACRUS 5000ft #CRUISING ALTITUDE
REFTCRUS 1.0 #CRUISING THROTTLE SETTING

REM ClSlope,CdConst is fixed by Landing condition
REFVLAND 73kt #LANDING SPEED
REFAOALD 9deg #LANDING AOA
REFLNRWY 600m #RUNWAY REQUIRED TO STOP
REFTHRLD 0.98 #LANDING THROTTLE SETTING

AUTOCALC
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