Eurocopter

[webmaster]

Oh, my eyes, my eyes! A blistering speed of 220/250KIAS eh? I bet all you helo guys are excited!



http://news.yahoo.com/s/nm/20100927/tc_nm/us_eurocopter_x3_2

 

[Treetop Flyer]

Kinda like this guy

 

[busdriver]

Or this:

 

[Fog]

I'm no engineer, but if you want more speed why not mount 1 jet engine aft of the cabin & on-centerline and use it only for the cruise phase of flight? Why does Eurocopter mount 2 big windmills out in the airstream that catch about as much drag as they produce in thrust?

 

[eas7888]

I'm no engineer, but if you want more speed why not mount 1 jet engine aft of the cabin & on-centerline and use it only for the cruise phase of flight? Why does Eurocopter mount 2 big windmills out in the airstream that catch about as much drag as they produce in hrust?

They're European? Practicality has never been the strong suit of Europeans.

 

[PhrogLoop]

I'm no engineer, but if you want more speed why not mount 1 jet engine aft of the cabin & on-centerline and use it only for the cruise phase of flight? Why does Eurocopter mount 2 big windmills out in the airstream that catch about as much drag as they produce in hrust?

Much faster than 250 kts, retreating blade stall would cause the bird to roll uncontrollably, assuming you kept the main rotor spinning. Below 250kts/10,000 ft, a prop is much more fuel efficient and produces plenty of thrust(see T-6 vs. T-37).

 

[insanebikerboy]

Oh, my eyes, my eyes! A blistering speed of 220/250KIAS eh? I bet all you helo guys are excited!

View attachment 12235

http://news.yahoo.com/s/nm/20100927/tc_nm/us_eurocopter_x3_2

Except when they install HIRSS, hang shit off the batwings, and armor up the body and we're back down to about 150 knots max.

 

[CAMike]

Much faster than 250 kts, retreating blade stall would cause the bird to roll uncontrollably, assuming you kept the main rotor spinning. Below 250kts/10,000 ft, a prop is much more fuel efficient and produces plenty of thrust(see T-6 vs. T-37).

Is the what killed off the Sikorski S-72 program? If memory serves it's max speed was around >200 KIAS.

 

[exhelodrvr]

I'm no engineer, but if you want more speed why not mount 1 jet engine aft of the cabin & on-centerline and use it only for the cruise phase of flight? Why does Eurocopter mount 2 big windmills out in the airstream that catch about as much drag as they produce in thrust?

The rotor blades will limit the max speed.

Now, if they could figure out how to fold and spread the blades in flight ...

 

[BigIron]

Oh, my eyes, my eyes! A blistering speed of 220/250KIAS eh? I bet all you helo guys are excited!

View attachment 12235

http://news.yahoo.com/s/nm/20100927/tc_nm/us_eurocopter_x3_2

That's a lot of spinning metal. No thanks.

 

[HeloBubba]

Is the what killed off the Sikorski S-72 program? If memory serves it's max speed was around >200 KIAS.

Did the S-72 ever actually fly with the rotors?

 

[Birdog8585]

I'm goin with the Sikorsky X2 on this one. Eat your heart out retreating blade stall.

 

[nittany03]

Is it just me, or does that look like something Dr. Evil would come up with?

 

[BigIron]

It looks like something Homer Simpson would design

 

[Rubiks06]

Except when they install HIRSS, hang shit off the batwings, and armor up the body and we're back down to about 150 knots max.

150.....straight and level....never seen it.