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Look what a CH-47 can do
- Thread starter Raptor2216
- Start date
Here's a helo crash video for you troop haulers....hope the guy that was throw survived....
http://www.zippyvideos.com/8251959382553886/crash/
I saw a H-3 do a similiar dance once on Dodge back in 1987. Everyone survived.
http://www.zippyvideos.com/8251959382553886/crash/
I saw a H-3 do a similiar dance once on Dodge back in 1987. Everyone survived.
Man, you can tell he was trying to work it, but he played around w/ it too long and didn't just cut and drop it.
Quick Recce quiz...I thought that was a Puma, which I thought was British, but it's spinning the wrong way. Is the Puma French or do I not know my recce (very likely). Skid, save me.
Edit: Never mind, I just remembered Puma is Aerospatiale.
Quick Recce quiz...I thought that was a Puma, which I thought was British, but it's spinning the wrong way. Is the Puma French or do I not know my recce (very likely). Skid, save me.
Edit: Never mind, I just remembered Puma is Aerospatiale.
Raptor2216
Registered User
Bad times.
Looks like they had a hard landing and maybe it separated a flight control to the tail or dislodged the trail driveshaft. If you look closer at the tail rotor, it appears to be decaying in turns. The puma blades spin the opposite (clockwise) than the US birds, so the helo yawing left makes sense. Just my best guess....
eddie said:
It dosen't look like the tail rotor struck the ground on first impact. It looks more like he came in too fast and too heavy (probably right at max gross weight). It looks like when he pulled power to recover he started to droop turns. The tail rotor spins about 6 times faster than the main rotor. Therefore for every 1 turn lost in the main rotor the tail rotor loses 6. This lead to a loss of tail rotor authority that caused the uncotrollable spin. At least that's what it looks like.
Yup. And anytime you adjust the cyclic, it screws w/ the other two as well. Basically if you adjust any one control, you're adjusting the other two. Now sometimes there's geewhiz technology that takes some of the work out of it, but it's still happening.
Everyone gets used to the coupling of control movement, but as w/ everything, some are better than others. As for coupled movement, when wiping out the controls of a fixed wing now (right arm and feet on pedals), I still want to move my left arm back and forth like I did w/ the collective. Kind a bad idea when it's the throttle that's in your left hand. I was talking w/ an IP who's been flying T-34s for several years now, and she stills pulls her hand towards her armpit (instead of pushing a throttle away from you) when talking w/ her hands and talking about going "max blast." It's totally muscle memory.
Just found this video of a helo doing some crazy flying. It is some news guy from germany. The caption says, "Stefan Raab from the segment “Raab in Danger” on the German TV show “TV Total” meets his match in a Messerschmitt-Boelkow-Blohm B0105." Just download and enjoy. There is a long intro before he goes flying.
http://www.patricksaviation.com/videos.php?action=view&id=373
http://www.patricksaviation.com/videos.php?action=view&id=373
Raptor2216
Registered User
gatordev said:
Do most helicopters use a gyro to "lock" the tail when in normal flight on one heading or is there a mechanical system that keeps the tail behind the helo? What about if there is a cross wind? Does the pilot have to keep the nose pointing the right way or does something compensate for it?
Raptor2216
Registered User
mules83 said:
That looks like a lot of fun...I wonder how much one of those helicopters costs. After watching that video, I wonder if a a little bird would make a good aerobatic helo. The rest of the video look pretty awesome too.
