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HomeAircraftHelicopterAerial Photography and Video › tri athalon crash on video arrives
02-10-2006 05:27 PM  12 years agoPost 1
DANNO

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St. Petersburg, Florida

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hey, after 3 months, we finally received the origianl tape back from the video producer that hired us to shoot video of a triathalon in miami.

some of you might remeber i posted that we crashed while filming it.

anyway heres the last few min of the tape....from when things startred getting hairy. youll notice the rpm sound like they were starting to drop indicating the end of the battery. i must have been using a partially charged pack by accident. as soon as i noticed this while flying i flew as quickly back to the landing zone as possible. after reviewing the tape, i think i could have easily landed safely, but in a semi state of panic i hit uneven ground, bounced up and i coulnt keep it level, and it came down on its side.


anyway, in the dash to get back to shore, i noticed i did fly over people....that was a mistake on my part, and shouldnt have done that...no nead to point that out bad danno.....bad!

http://skypixhelicam.com/home3/crash/tria%20crash.mpg

www.skypiximaging.com

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02-10-2006 05:55 PM  12 years agoPost 2
Smithprod

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Oklahoma

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That SUCKS to watch! Way to skate it on to the land. Sounds like you've got some great support from your cameraperson there!

Brad

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02-10-2006 06:35 PM  12 years agoPost 3
peaks view

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City, State

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..

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02-10-2006 07:01 PM  12 years agoPost 4
R Hudson

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Denver, CO

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Danno,

I always hate to hear of a crash like that, but congrats on the excellent save!

That was a long way to travel to bring it back in to land and you managed to:

1. Save the camera from the water
2. Save the heli from the water
3. Not crash into anything expensive, like PEOPLE
4. Actually land pretty well, all things considered!

I consider it a great save on your part, especially taking into account the large crowd and everything.

BTW, it sounds like you have a very supportive "Ground Crew" there

Rod

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02-10-2006 07:21 PM  12 years agoPost 5
clay454

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Ohio

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good bailout. Nothing more you could have done. I had a similar situation that wasnt as critical. I put it down and broke some parts as well. I was pissed and demoralized at the time. Considering the circumstances it actually built up my confdence.

clay

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02-10-2006 07:24 PM  12 years agoPost 6
DANNO

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St. Petersburg, Florida

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yea, my camera operator is great. i thanked my lucky stars that we were able to get it back to land and not hit anything. id did learn alot that day, most importantly to have a larger landing zone clear of people....and ofcoarse now we use a lipgaurd on the copter to let me know when the batterys getting low....

www.skypiximaging.com

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02-10-2006 07:36 PM  12 years agoPost 7
aambrose

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Pana, IL

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OK......time for a really dumb question. How exactly does the lipguard warn you? Does it beep? Put out little puffs of smoke?


Tony

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02-10-2006 07:44 PM  12 years agoPost 8
DANNO

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St. Petersburg, Florida

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tony

the lipo gaurd consists of a super bright red light. during normal operation it flashes once ever 3 or 4 seconds. you can clearly see it on the brightest of days.

you set the voltage at which you want it to warn you and it starts strobing....

the esc i am using gradually cuts power automaticall over 30 seconds when the lipos hit a certain voltage in order to avoid over discharge. the lipo guard will start strobing a good 30 seconds or so before the esc starts its cutoff, with the voltage i have it set on.

so you have about 30 seconds of full power before the esc will start its gradual cut out.

ofcoarse i never use this as a method to tell me when to stop flying....its a backup...i have my timer set at 15 min and usuallly thats as long as i stay up.....

www.skypiximaging.com

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02-10-2006 08:13 PM  12 years agoPost 9
aambrose

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Pana, IL

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Thank for clearing that up Dan. Sounds pretty cool. So do you have multiple packs in case you need to go right back up after 15 minutes? How long does it take (average) to charge a pack? Don't you have to let it cool down before and after charging? Maybe this should be another thread....sorry.

Oh yeah.....ever forget to start the timer?


Tony

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02-10-2006 08:25 PM  12 years agoPost 10
fitenfyr

rrProfessor

Port Orchard, Washington

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I feel your pain....Looks alot like my Ion after I did a VERY similar thing. Just no water involved with my bust.

My timer starts when the stick is moved up. Never forget to set it then.
My problem is I can't hear the beep to tell me I am at 7 minutes.

Jason Stiffey
Fly Fast....Live Slow...

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02-10-2006 08:26 PM  12 years agoPost 11
Torsten

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Germany

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Dan,

real sorry to see that, but you did´nt put it in the drink !

looks like the tail rotor struck and failed, and the rest went real fast.

Minicopter offers a telemetry downlink set that sends little beeps at diffrent intervals to inform the pilot of any problems with the powersupply.

i saw Gerd Guziki fly unit that at a E heli fun fly last year.

makes sense to me and i am looking into one after reading this.

copied this from Gerds page .

http://www.minicopter.de/en/index.html


"Explorer" - voltage telemetry system

New telemetry system for the acustic voltage control of a Lipo battery. The transmitter including antenna is mounted on the helicopter and connected with the flight battery either on the controller plugs or, using a minicopter-selfmade-Lipo-battery, thru the balancing plug The power for the transmitter is also supplied from the flight battery. 434-MHz-UHF-signal telemetry.
Four different signal rhytms for certain voltage areas:
1. short signal tone each 2,5sec above 3,40V/cell Hear
2. longer signal tone each 0,5sec between 3,40V and 3,20V/cell Hear
3. short signal tone each 0,2sec between 3,20V and 3,00V/cell Hear
4. continuous tone below 3,00V/cell Hear

Thru the exact knowledge of the voltage the battery can be discharged with much more security and without the risk to damage the battery from undervoltage. Latest with apperance of signal 3 the helicopter should be landed. The telemetry system is especially interesting for pilots with a gently flight style and long flight times or photo helicopters, because with a smooth flight style you can reach much easier an undervoltage without recognizing it.
Adjustable loudness of the earphone with a potentiometer.
Weight of transmitter including cables and antenna: 65g (2oz)
Receiver battery included. For 10s- or 12s-Lipo-batteries, for other numbers of cells please call.

Ord.-no. 1950 Explorer-voltage telemetry system for 10s-Lipo-batteries

Ord.-no. 1952 Explorer-voltage telemetry system for 12s-Lipo-batteries


t

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02-10-2006 09:20 PM  12 years agoPost 12
GMcNair

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Birmingham AL

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FWIW, if any of you are using the BWAV digilive downlinks, they have a built in microphone, so you can hear the motor rpm if the digilive is placed within "mic-shot" of it. You just need to have the audio plugged into some playback/listening source. You know how your RPM's should sound, especially with elecs, so this is a great source for knowing if there's a problem onboard when the heli is out of good earshot.

Dan, at least you didn't put it in the water, and nobody got hurt.

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02-10-2006 09:25 PM  12 years agoPost 13
lele

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italy

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Not so bad!
Danno, I told you once the in italian language the meaning of "Danno" is "damage".
You did a good job not diving the heli in to water or hurting some of the athletes.
But my hands up goes to your flight partner! Mine ( and have to say HE is a fat and old buddy ) would have told me ( and he did when I crashed): "you stupid man! why you still pretend you can fly this thigh? ...let's go for a beer!"

Lele

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02-11-2006 12:06 AM  12 years agoPost 14
aambrose

rrElite Veteran

Pana, IL

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Dan,
Just watched the video. Great job of getting it back to land! Were you using a KS-2 on that? I thought I heard it spooling down while watching the "ground footage".

That is one special camera person! I bet your stomach was knotting up and she remained positive.


Tony

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02-11-2006 12:30 AM  12 years agoPost 15
DANNO

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St. Petersburg, Florida

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yea, there was a ks2 on board....that copter was loaded up pretty heavy...didnt help things...
fortunatly the ks2 appears to be fine as well as the mount, gs400, and all electronics except 1 servo. even the tail rotor blades made it....only damage was blades, flybar, boom, boom supports, and tail rotor pushrod.

www.skypiximaging.com

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02-11-2006 12:45 AM  12 years agoPost 16
aambrose

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Pana, IL

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Yep! Can't really complain much about that one! (thumbs up!)


Tony

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02-11-2006 02:49 AM  12 years agoPost 17
Brett Horton

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---------

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Close call on getting to the shore.
Sorry to hear about it.

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02-11-2006 03:02 AM  12 years agoPost 18
bell-230

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sonoma, ca (currently milano italy)

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alas the problem with underslung mounts is noticed.


i once saw a video that jeff did from his maxi and he was shooting sliding autos with his maxi! i dont know how the foam didnt just grap and toss it....

ian brooke
k2shots.com

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02-11-2006 03:27 AM  12 years agoPost 19
DANNO

rrKey Veteran

St. Petersburg, Florida

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yea, i remember that....i dont have the guts to try a fully loaded auto to the ground intentionally with the mount....that crazy guy....

www.skypiximaging.com

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02-11-2006 03:31 AM  12 years agoPost 20
fitenfyr

rrProfessor

Port Orchard, Washington

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Not crazy....that good.

I also think Jeff had pulled the foamies off for that video.

Jason Stiffey
Fly Fast....Live Slow...

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HomeAircraftHelicopterAerial Photography and Video › tri athalon crash on video arrives
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