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Update of the M-2000C Manual


baltic_dragon

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Does anybody know when the AP and PPA test buttons are used ?

Are they part of the pre start procedure and performed during the light test (step 12 Alarm panel and fire warning lights?) or are they used only in emergencies?

Also, can someone explain how exactly step 13 of the post engine start checklist (SEC CALF and SEC CARB emergency mode test) is performed? (by flipping the respective switches / CARB lever one at a time and watching if the CALC light on the alarm panel goes on and off when theyswitched back?).

Finally, shouldn't a brake test step be included in the taxing checklist?

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PPA test tests the PPA lighting to check for bad bulbs.

 

The FBW test is required for a cleared DECOL warning light. Assume that AP test is done immediately after without the DECOL association.

 

Secours Calc. and Carb. are probably done individually by forcing the secondary mode, noting the lights and possibly engine behavior (temperature, RPM, etc.) either at idle or when worked through the dry thrust range. The ground crew would probably note that the nozzle didn't react as it would in normal mode at various engine settings to confirm positive changeover.

 

Yeah, brake test on initial movement applies to every airplane I've ever encountered. Probably should be in the procedure text too.

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PPA test tests the PPA lighting to check for bad bulbs.

 

The FBW test is required for a cleared DECOL warning light. Assume that AP test is done immediately after without the DECOL association.

 

Secours Calc. and Carb. are probably done individually by forcing the secondary mode, noting the lights and possibly engine behavior (temperature, RPM, etc.) either at idle or when worked through the dry thrust range. The ground crew would probably note that the nozzle didn't react as it would in normal mode at various engine settings to confirm positive changeover.

 

Yeah, brake test on initial movement applies to every airplane I've ever encountered. Probably should be in the procedure text too.

Wasn't asking about the AP button next to the FBW test switch , but the one next to the AP selection modes on the upper left side of the central console

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Oh, tests the lights just like the PCA/PCA-aux one.

 

Example behavior:

NORM

N 49-100% (idle-max dry)

Tt7 460-850 (idle-max dry)

Nozzle motion

 

SEC. CALC.

N 57-102% (idle-max dry)

Tt7 500-960C (idle-max dry)

No Tt7 overtemp protection (78% = 900C)

No nozzle motion

 

SEC. CARB.

N 61-100+-2% (idle-max dry)

Tt7 420-850C (idle-max dry)

No nozzle motion

No response primary thrust handle

 

SEC. CALC and SEC. CARB.

N 61-100+-2% (idle-max dry)

Tt7 460-960C (idle-max dry)

No Tt7 overtemp protection (83% = 900C)

No nozzle motion

No response primary thrust handle

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So here is a real touch and go pattern flown by Mirage 2000 pilots :

- after landing align the aircraft with the centerline / landing lights off

- apply full dry thrust (not AB) hold the take off pitch up position

- lift off , 5 degr. up, gear up, 15 degr. nose upaccelerating up to 215 - 230 kts

- at 500 ft AGL turn to downwind ,

- climb to pattern altitude (1500 AGL standard)

- throttle back , hydraulic pressure check (SOP before every gear down, to ensure that there is enough pressure available) , gear down

- slow down to landing speed (typical is 160 kts), rpm target 75% , when runway at 45 degr. behind angle turn to final

- the pattern is flown with AP on and using the temporarily AP disengage trigger in the front of the stick

- when aligned with the runway , match throttle , release the AP disengage trigger for 2 seconds (count 1001 - 1002), - AP trims the aircraft for landing speed - , press again the AP trigrer to gain manual control

- autopilot should not used below 200 ft, as already described in the manual.

- flare / land


Edited by jaguara5
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