Hi,During descent I usually use V/S to loose altitude. V/S is a good confortable system (for the passengers) of descent but it increase the speed if we don't reduce speed before using it(ex. 260 kts).Is it possible to use spoilers (<5%)as speedbreaks like it is used on real planes ?If yes, how to do it and at which max speed can I use spoilers ?Thanks for you help.PMDG 737NG are very good planes. Gratulations to the developpers.Jean-Claude JollietSwitzerland*:-*

Of course! VMO/MMO or approaching it should be the limit. Typically SpeedBrakes will cut the deceleration time-distance in half in level flight. With flaps 15 or greater speedbrakes should not be used.Best Wishes,[h4]Randy J. Smith[/h4]http://www.rawbw.com/~bdoolin/shinault/Animation1.gifCaution! Not a real pilot, but do play one on TV ;-)AMD 64 3200+ | NEC LCD 1980SXi 19" | ASUS KV8 DELUXE | GFORCE 5700 ULTRA @535/1000 | Maxtor 6Y080M0 SATA 80 GIG | 512 DDR 400 | Windows Xp Pro |

Hi JC,May I humbly suggest flying the PMDGsim the same as the 737NG is in the real world.Use VNAV for DES and if you get a DRAG REQUIRED message then use speedbrake exactly as it was designed.LMK if I can help further,Brad

Hi,Thanks to Randy and Brad. Great, I can use now the spoilers as speedbrakes in the air. So it is much more like in the reality !I was unable to find the right key on my Swiss/German keyboard. So I switched to an US keyboard and it worked perfectly.Have a good end of week-end,JC*:-* http://www.precisionmanuals.com/images/forum/ng_driver.jpg