Max. Flap placard Speeds dc9-10 series?

[macs]

Hi,
Cannot find the information for maximum flap placard speeds for the DC-9 10 series. I use them for approach, they usually come in handy to help slow you down without having to change power settings much (re-configure). Maneuvering is made with the flap booklet speeds though. Thanks in advance for your help,
regards,
Macs.

[aerofoto - HJG Admin]

There might be something in/on the panel which I didn't comment on regarding this .... I'm not sure

In the meantime .... and although it's not what you've specifically requested .... I realize .... BUT .... here is the relative information which I did comment regarding within my PANEL HANDLING & INSTALATION NOTES ....

The Flap gauge is also displayed on this sub panel. On the ground .... keyboard command "F7" will cycle the Flaps, incrementally, through the following 6 detentes and all the way down to the maximum FLAP 50 detente ....

- SLATS/LE .... no flap indicator movement !
- FLAP 5
- FLAP 15
- FLAP 25
- FLAP 40
- FLAP 50

Inflight .... keyboard command "F7" will also cycle the Flaps, incrementally, through the to the same 6 detentes and all the way down to the maximum FLAP 50 detente.

Inflight .... Selecting "F8" will cycle the Flaps to the FLAP 40 detente only.

For environmental reasons FLAP 40 is the maximum mormal landing flap detente ever used on DC9 aircraft. Just as a matter of procedure.... FLAP 50 should only be used on DC9-10 aircraft.

And ....

The ASI gauge is located above the RMI.

3 white V-REF speed bugs are located around the outer right rim on the ASI gauge. Clicking the center of the ASI ("once") .... on the ground .... will automatically set the V-REF/speed bugs in accordance with FLAP 5 T/O speeds. Clicking the center of the ASI ("twice") .... on the ground .... will automatically set the V-REF/speed bugs in accordance with FLAP 15 T/O speeds.

FLAP 15 is the recommended setting for most short to medium length RWY's .... otherwise a FLAP 5 setting is quite adequate !

Setting the V-REF bugs triggers the following automatic speed call-outs during T/O ....

- "80K KNOTS"
- "V-1"
- "ROTATE"

Clicking the center of the ASI ("once") .... inflight .... will automatically set the V-REF/speed bugs in accordance with FLAP 20 speeds. Clicking the center of the ASI ("twice") .... inflight .... will automatically set the V-REF speed bugs in accordance with FLAP 40 speeds. FOR FURTHER INFORMATION REFER TO SECTION 7.0.

Failure to set the ASI speed bugs prior to commencing T/O will trigger call-outs at well below the correct safety speeds and result in either a prolonged rotation or risk the aircraft stalling and crashing soon after T/O .... or both. The ASI speed bugs should be set only after the Total Aircraft Weight gauge has first been set or inaccurate T/O speeds will be calculated. FOR FURTHER INFORMATION REFER TO SECTION 1.7.

A number of silent/invisible "Hot Points" are located around the outside right rim of the ASI gauge. These can be used to manually set/adjust each of the 3 V-REF speed bugs as desired.

Clicking the ASI, as recommended, will give you reference speed bug settings for both T/O and landing .... and FLAP SPEEDS can probably be "guessed" from there !

Matt ZAGORAN also did a DC9 PERFORMANCE & LIMITATIONS document (but I don't know for which DC9 type aiircraft) which you can download from FS.COM (search "MATT ZAGORAN", or just "ZAGORAN") and which should contain other very useful imformation taken directly from the actual aircraft AOM's.

Mark C
AKL/NZ

[macs]

Thanks for the info. Found this from Stellan's site, which coincidentally I asked the same question (must be getting old). I would imagine these should hold close enough to the -10 series though).

flaps 5 280
flaps 15 240
flaps 25 220
flaps 40/50 190

regards,
Macs.

[aerofoto - HJG Admin]

I also found this info today .... relating to DC9 VFE .... which I think refers to maximum flap speeds ....

DC9-10/15 series

FLAP 0-10 = 280 KTS
FLAP 10-20 = 240 KTS
FLAP 20-40 = 210 KTS
FLAP 40-50 = 180 KTS

DC9-20/31/32/33/40 series

SLATS = 280 KTS
FLAP 0-10 = 280 KTS
FLAP 10-20 = 240 KTS
FLAP 20-25 = 210 KTS
FLAP 25-50 = 180 KTS

DC9-34 series

SLATS = 280 KTS
FLAP 0-10 = 280 KTS
FLAP 10-20 = 240 KTS
FLAP 20-25 = 220 KTS
FLAP 25-40 = 195 KTS
FLAP 40-50 = 190 kTS

DC9-50 series

SLATS = 280 KTS
FLAP 0-10 = 280 KTS
FLAP 10-20 = 240 KTS
FLAP 20-25 = 220 KTS
FLAP 25-40 = 195 KTS
FLAP 40-50 = 190 kTS

And .... I also got the VLO information too .... which I think refers to the maximum landing gear operation speed .... and which for all of these aircraft appears to be as follows ....

GEAR EXTEND = 300 KTS
GEAR RETRACT = 250 KTS

Hopefully this information might aid a few of you !

Mark C

[macs]

Many thanks for the info Mark.
regards,
Macs