GST Flashcards
The Apache’s target state estimator (TSE) will correct for steady state target movement when the MTADS or FCR are used. However,
the TSE assumes that the gunner is smoothly tracking the target. Excessive or inconsistent target tracking by the gunner is misinterpreted by the TSE as target movement and will result in the wrong amount of lead.
The rate of fire for the M230E1 is ___ +- ___ per minute
625 ±25 rounds per minute.
The M230E1 is an externally powered, chain driven weapon mounted in a hydraulically driven turret. Gun major components are:
receiver assembly, index drive assembly, bolt carrier assembly, forward track assembly, recoil mechanisms, drive motor, flash suppressor, and barrel.
The gun turret is capable of azimuth movement of 86° left or right of the helicopter centerline. Elevation travel is:
+11° (+9° elevation within ±10° of centerline), and -60° depression.
In the event that a GUN AZIMUTH MISTRACK or a GUN ELEVATION MISTRACK FAULT is encountered, the WP will disable the gun.
This will freeze the gun turret in its current azimuth and stow in elevation.
In the event of power loss, the gun is spring driven to +__ elevation to prevent dig-in during landing.
+11°
Failure to adhere to the published gun duty cycle may result in a _____ ______ ______ or ______
Failure to adhere to the published gun duty cycle may result in a catastrophic failure, loss of aircraft, injury or death.
The gun duty cycle is as follows:
Six 50 round bursts with 5 seconds between bursts followed by a 10 minute cooling period. For BURST LIMIT settings other than 50, the cycle can be generalized as no more than 300 rounds fired within 60 seconds before allowing the gun to cool for 10 minutes, after which the cycle may be repeated.
Harmonization procedures should be accomplished between 500 to 1500 meters from the target with the preferred distance being ____m
1000 meters.
The M789 round steel case generates explosively driven fragments. The nominal burst radius is ___meters; however, the lethal fragment impact pattern is dependent upon the _____, ______, _______, and the _______type.
4M, surface conditions, impact angle, velocity, and the target type.
The maximum effective range of the 30-millimeter varies based upon target type and desired effect. Point targets can be accurately engaged out to ______ to ______ meters. The WP will provide a ballistic solution up to a range of _____ meters.
15-1700 m, 4200m
If 300 or more rounds have been fired in the preceding ____ minutes, and a stoppage occurs, personnel must remain clear of the aircraft for ___ minutes. Crewmembers should remain in the aircraft and continue positive gun control.
10 minutes, 30 Minutes
The M789 HEDP round is a high explosive, dual purpose service round with a point detonating fuse.
The M789 HEDP round is a high explosive, dual purpose service round with a point detonating fuse.
The projectile of the round has a shaped charge liner for piercing an excess of __ inches of Rolled Homogenous Armor (RHA) at ____ meters and a fragmentation radius of __ meters for soft targets.
2 inches, 2500m, 4m
The Fixed (FXD) mode fixes the gun to 0 degrees in azimuth and _____ degrees (≈15mils) elevation.
+0.87 elevation
30mm time of flight chart:
1000m, 2 sec, 15 mil drop
1500m, 3.7 sec, 32 mil drop
2000m, 5.8 sec, 60 mil drop
2500m, 8.6s sec, 100mil drop
3000m, 12.2 sec, 160 mil drop
The aircraft ready posture is termed “Fence-Out” and has the basic framework of:
weapons, ACE, IFF, Lights Recorder, MPD - WAIL-RM
In order to obtain an accurate laser range when engaging troop targets, the laser range finder should be placed in “____ ____” logic (LAST) and aimed for the ____________ troop.
last pulse, feet of the closest
If 300 or more rounds have been fired in the preceding ten minutes, and a stoppage occurs, personnel must remain clear of the aircraft for ____ minutes. Crewmembers should remain in the aircraft and continue positive gun control.
30 min,
6PD -
6RC -
6MP -
6IL -
6IL -
6SK -
6FL –
6PD - Point Detonation, High Explosive
6RC - Penetration, High Explosive
6MP - Time, Multipurpose Submunition
6IL - Time, Illumination
6IL - Time, Infrared flare
6SK - Time, Smoke
6FL – Flechette
The P*will announce whenever he or she intends to ___, ____, ______ fire, _______ for running fire, or reposition the aircraft and will maneuver the aircraft into constraints.
The P*will announce whenever he or she intends to unmask, re-mask, climb for diving fire, accelerate/ decelerate for running fire, or reposition the aircraft and will maneuver the aircraft into constraints.
MODE options. The firing crewmember selects the desired mode of rocket employment. This button allows the crewmember to set either the normal (NORM) or fixed (FXD) mode of operation. In NORM the pylons are commanded to articulate based on the WP/MP ballistic solution within an articulation range of ___ to____degrees. In the FXD mode the pylons are commanded to a fixed position of ____ degrees.
MODE options. The firing crewmember selects the desired mode of rocket employment. This button allows the crewmember to set either the normal (NORM) or fixed (FXD) mode of operation. In NORM the pylons are commanded to articulate based on the WP/MP ballistic solution within an articulation range of +4 to -15 degrees. In the FXD mode the pylons are commanded to a fixed position of +3.48 degrees.
Hover-fire Rockets engagements can be achieved at a range of approximately ____meters without changing aircraft pitch attitude. At ranges beyond _____meters, pitch attitude changes (nose-up) may have to be made to meet firing constraints.
Hover-fire engagements can be achieved at a range of approximately 4,500 meters without changing aircraft pitch attitude. At ranges beyond 4,500 meters, pitch attitude changes (nose-up) may have to be made to meet firing constraints.
During running fire, align the helicopter into firing constraints with the ______while maintaining aircraft trim. Firing constraints are met when the rocket steering cursor overlays the ____reticle. The top and bottom horizontal legs of the solid I-beam must be above and below the center of the LOS reticle, respectively.
LOS reticle.
The top and bottom horizontal legs of the solid I-beam must be above and below the center of the LOS reticle, respectively.
The PLT is able to employ manual (MAN), automatic (AUTO), radar (autonomous FCR and radar frequency missile handover [RFHO]),AAG, UR, and navigation (NAV) coordinate ranging to targets. The CPG may utilize LASER ranging as well as those selections available to the pilot.
The PLT is able to employ manual (MAN), automatic (AUTO), radar (autonomous FCR and radar frequency missile handover [RFHO]),AAG, UR, and navigation (NAV) coordinate ranging to targets. The CPG may utilize LASER ranging as well as those selections available to the pilot.
_____ _____] The top and bottom horizontal legs of the solid I-beam must be above and below the center of the LOS reticle, respectively. This indicates the pylons are able to articulate as necessary to meet the range and elevation requirements for the engagement.
[NORM Mode] The top and bottom horizontal legs of the solid I-beam must be above and below the center of the LOS reticle, respectively. This indicates the pylons are able to articulate as necessary to meet the range and elevation requirements for the engagement.
The FXD mode is best utilized in a diving or running flight profile against targets at _____or less.
The FXD mode is best utilized in a diving or running flight profile against targets at 2000m or less.
When rockets are actioned with HMD as the selected LOS, range will automatically default to the selected _____range of the firing crew member. If ____range is desired the crew member must select the appropriate _____source after rockets are actioned.
When rockets are actioned with HMD as the selected LOS, range will automatically default to the selected manual range of the firing crew member. If NAV range is desired the crew member must select the appropriate ACQ source after rockets are actioned.
The _____ ______ ______ provides the capability to check/verify rocket type within each of the rocket zones on pre-flight.
The Load Maintenance Panel (LMP) provides the capability to check/verify rocket type within each of the rocket zones on pre-flight.
If utilizing TADS the CPG will provide range to target for the engagement. During hover fire engagements against stationary targets ____ detent laser ranging or NAV should be used. During dynamic (target, aircraft or both moving) continuous laser ranging or NAV should be utilized.
If utilizing TADS the CPG will provide range to target for the engagement. During hover fire engagements against stationary targets 1st detent laser ranging or NAV should be used. During dynamic (target, aircraft or both moving) continuous laser ranging or NAV should be utilized.
Cooperative engagements allow the crewmembers to share the workload for the engagement. Cooperative engagements utilize the CPG’s LOS and range for ballistic solution calculations and provide the PLT with steering data. During cooperative engagements___ _____ _____ and provide range to target while the PLT aligns the aircraft for the engagement and fires the rockets.
Cooperative engagements allow the crewmembers to share the workload for the engagement. Cooperative engagements utilize the CPG’s LOS and range for ballistic solution calculations and provide the PLT with steering data. During cooperative engagements the CPG will track and provide range to target while the PLT aligns the aircraft for the engagement and fires the rockets.
If utilizing TADS the CPG will provide range to target for the engagement. During hover fire engagements (when the target is stationary) ____ detent laser ranging or NAV should be used. During dynamic (target, aircraft or both moving) continuous laser ranging or NAV should be utilized.
If utilizing TADS the CPG will provide range to target for the engagement. During hover fire engagements (when the target is stationary) 1st detent laser ranging or NAV should be used. During dynamic (target, aircraft or both moving) continuous laser ranging or NAV shouldbe utilized.
Low-altitude bump. This profile maximizes the benefits of both running and diving fire involving a low- altitude run-in with a ___ _____-foot climb (Bump) about ____ _____ meters prior to the target. From the apex of the climb the crew enters a diving profile in order to deliver ordnance in a nose-down angle to achieve smaller beaten zones. In mountainous terrain there may be no need for a Bump as the relative position of the sloping terrain provides the same effect to an aircraft in level flight.
Low-altitude bump. This profile maximizes the benefits of both running and diving fire involving a low- altitude run-in with a 300- to 1,000-foot climb (Bump) about 1,500 to 2,000 meters prior to the target. From the apex of the climb the crew enters a diving profile in order to deliver ordnance in a nose-down angle to achieve smaller beaten zones. In mountainous terrain there may be no need for a Bump as the relative position of the sloping terrain provides the same effect to an aircraft in level flight.
Stable firing platform (4-Ts): Regardless of the engagement technique used, the aircrew must strive for accurate fires onto the target by providing a stable firing platform. By verifying “___ ___ ____ ____” sequence prior to firing the P* ensures a stable and accurate weapons platform
4-Ts—target, TQ, trim, and target”
After rockets are fired, the CPG should “sense” their impact by selecting a wider FOV on the TADS and detecting the rocket impact. Subsequent corrections must be made in the field of view in which the CPG “sensed”.
After rockets are fired, the CPG should “sense” their impact by selecting a wider FOV on the TADS and detecting the rocket impact. Subsequent corrections must be made in the field of view in which the CPG “sensed”.
The M255A1 flechette is the optimum weapon for attacking dismounted enemy combatants, particularly in soft soil/marshy conditions which would otherwise limit the effectiveness of conventional point detonating HE weapons.
The M255A1 flechette is the optimum weapon for attacking dismounted enemy combatants, particularly in soft soil/marshy conditions which would otherwise limit the effectiveness of conventional point detonating HE weapons.
The minimum range to target when firing flechette rocket is ___meters. Operators should attempt to employ M255A1 flechette rockets at ranges between ___ to ____ meters. Operators should employ a ____ -____ degree dive when firing flechettes. Steeper delivery angles will create a smaller beaten zone and increase flechette density within that beaten zone. Consider placing the rocket steering cursor (NORM or FXD) just above the target as a means to place more nails on target. For example, the data shows at a 10° dive and 1000 meter trigger pull that a majority of the nails land approximately 50 meters short of the intended target.
The minimum range to target when firing flechette rocket is 800 meters. Operators should attempt to employ M255A1 flechette rockets at ranges between 800 - 2000 meters. Operators should employ a 10° - 30° dive when firing flechettes. Steeper delivery angles will create a smaller beaten zone and increase flechette density within that beaten zone. Consider placing the rocket steering cursor (NORM or FXD) just above the target as a means to place more nails on target. For example, the data shows at a 10° dive and 1000 meter trigger pull that a majority of the nails land approximately 50 meters short of the intended target.
If it is suspected that a residual charge is present on the M439 fuse, the rocket should be downloaded and not used for a minimum of _____days, in order for the fusing charge to dissipate.
10
The M257 Overt Illumination rocket provides approximately 1 million candle power for a minimum of _____seconds and can illuminate an area of more than ___ square kilometer when deployed at optimum height. A deployed main parachute descent is approximately ____ feet per second.
100, 1km^2, 15 ft/Sec
The M278 Infrared (IR) Illumination Warhead is designed for target illumination using NVG’s. The M278 puts out an equivalent of one million candlepower of IR illumination. It’s preset to deploy approximately _____meters downrange, and provides IR light for approximately ____ seconds.
3500, 180 sec
The M442 fuse is a 9-second nominal fuse used in both the M257 and M278 illumination rockets. It requires a launch distance of approximately _____m.
3500m.
Current aircraft software will input an algorithm to place the rocket approximately ____ ftabove the ACQ source. If using covert/M278 illumination, crews should factor in additional burn-time and add approximately _____ ft to TGT elevation to compensate
2000 ft, 1000 ft
Time from launch to flare ignition is ____ seconds.
13.5 sec
Firing MK66 in a hover or low speed at a height of less than 7 ft AGL, and for all other flight conditions of 5 ft AGL, is not authorized.
Firing MK66 in a hover or low speed at a height of less than 7 ft AGL, and for all other flight conditions of 5 ft AGL, is not authorized.
Do not fire rockets with the M433 (Nose Mounted Resistance Capacitance) fuse in situations where they might fly closer than __m from other airborne helicopters.
51m
Due to the possibility of surging the engines, do not fire rockets from inboard stations. Fire no more than _____ with ____outboard launchers every ____ seconds, or fire with only ____outboard launcher installed without restrictions (ripples permitted). These are the only conditions permitted.
pairs, 2, 3 sec, One outboard
Spent illumination rocket will land ____ to _____m beyond the target, and ___ to ___ beyond the Launch aircraft
700-1200, 4200-4700m
To offset-designate while manually tracking, place the MTADS reticle on a target of at least tank size, about ___ to ___ meters to the front or side of the intended target, while keeping the intended target within the selected MTADS sensor FOV. Allow a period of approximately ___ to ___ seconds to smoothly reposition the laser reticle to the intended target (careful to avoid large range to target errors, overspill), so that the laser spot remains on the intended target for the recommended terminal laser time (____ seconds for ground ranges up to ___km; 2 additional seconds for each additional kilometer).
To offset-designate while manually tracking, place the MTADS reticle on a target of at least tank size, about 50 to 100 meters to the front or side of the intended target, while keeping the intended target within the selected MTADS sensor FOV. Allow a period of approximately 1-2 seconds to smoothly reposition the laser reticle to the intended target (careful to avoid large range to target errors, overspill), so that the laser spot remains on the intended target for the recommended terminal laser time (6 seconds for ground ranges up to 5km; 2additional seconds for each additional kilometer).
When firing a LOAL TADS HO, the crew should attempt to fire the missile no longer than ____to ______ seconds after the target data (TARGET DATA?) message disappears.
5 to 7 seconds
LOBL constraints of an AGM-114R missile are ±___° as referenced from the tracking missile seeker’s LOS and aircraft centerline.
20