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mazawakhan said:OK! WTF is Venr? In over ten years of flying I have yet to hear of that one!
kevdog said:In over 18 years of flying I have yet to hear of that one!
asayankee said:I'm going to go out on a limb and say it's the same as what a lot of people call Vt....best climb in a clean configuration. I hink it stands for V-enroute. Just guessing though.
JetDriver2727 said:I think this was already addressed but I will take a second to re-state it. Venr is Enroute Climb Speed and is just another Name for Vfs or Vt. Cessna = Venr, Embraer = Vfs, Canadair = Vt, Boeing = Vfs. Bear in mind that the name of the specific "V" speeds above were used at the corporate and airline operators I have worked at, and your airline may have a different name for the same speed. In the 737, we use Vm (clean manuvering speed) as our Vfs/Venr/Vt in the event of an engine failure after takeoff and after cleanup. This is slightly faster then Vyse, but Vm is used to permit bank angles greater then 15 degrees.
V2 is not Venr!!! V2 = best rate of climb with the gear up and flaps in the takeoff position, and is the speed you will fly from a height 35 feet high after takeoff untill you achieve "acceleration height/altitude" or "cleanup height/altitude." After acceleration and cleanup, you will maintain Venr. Venr will provide you with a speed that will allow for a climb near Vyse (climb single engine in the CLEAN configuration, gear and flaps up for those that may have missed that.) Vfs/Vt/Venr, might be slightly above your Vyse speed to allow for manuvering (i.e. not limited to 15 degrees of bank) depending on the aircraft.
I am a pilot, not a writer. If the above doesn't make sense, then disregaurd it and go here: http://www.airplanedriver.net/study/part25.htm
Venr is Venr...it's the final segment climb speed in the Hawker...it is the equivalent of any V-speed that you use to climb once you're above obstacles.UndauntedFlyer said:I have one question though, this Venr speed is really just the clean maneuvering speed, which means it is also the Minimum Drag (L/D) Speed too, right? And then that would make it the best angle of climb speed, max endurance and approximately the best holding speed too. If that is what Venr speed is, then it is, of course, a most important speed by a different name than is used by Boeing, Douglass and others. Clean Maneuvering Speed always sounds familiar to everyone, it think.
OK then, the only thing I don't get in your post is why is it that you refer to this as an enroute climb speed? It seems that such a speed for enroute climb would be much faster than a clean maneuvering speed. For example in the 727 the clean maneuvering speed is around 200K to 210K and the enroute climb speed is typically 300K or more.
Minor correction here, Cessna (atleast the CJ2) displays Venr as Vt on the airspeed tape during takeoff.JetDriver2727 said:Name for Vfs or Vt. Cessna = Venr, Embraer = Vfs, Canadair = Vt, Boeing = Vfs.
A better analogy for V2 is best angle of climb speed with gear up, flaps takeoff, and takeoff thrust. It's all about the climb gradient. This is the 2nd segment of the climb, the 1st having ended with gear retraction/35 feet above runway, at V2. Indeed, the required minimum climb gradients for these segments is highest during the "V2 segment", i.e., during the second segment.JetDriver2727 said:V2 is not Venr!!! V2 = best rate of climb with the gear up and flaps in the takeoff position
UndauntedFlyer said:It seems that such a speed for enroute climb would be much faster than a clean maneuvering speed. For example in the 727 the clean maneuvering speed is around 200K to 210K and the enroute climb speed is typically 300K or more.
UndauntedFlyer said:I have one question though, this Venr speed is really just the clean maneuvering speed, which means it is also the Minimum Drag (L/D) Speed too, right?
User998 said:Minor correction here, Cessna (atleast the CJ2) displays Venr as Vt on the airspeed tape during takeoff.
JetDriver2727 said:Bear in mind that the name of the specific "V" speeds above were used at the corporate and airline operators I have worked at, and your airline may have a different name for the same speed.