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  • Fantastic day and strange scary crash...

    Hi All

    Just to share my experience today and to ask if anyone has any ideas on my last crash....(two and a half today)

    Took the day off as the sun was shinning and no wind. I've had a bit of a crashing streak recently, so have only my just rebuild 500 and 600 to fly. Anyway, I have 19 packs for the 600 and was determined to get through the lot...About 5 packs in the tail stopped mid flight during a chaos tic toc funnel (lol not really - I wish ), so I did managed to auto it down doing one hell of a piro, landed skids down so very happy - more luck than anything else. Turned out that the screws holding the tail together came out on one side.... (my son insisted on rebuilding the tail for me - or thats my excuse anyway ). A few bolts later and back to flying.

    Pack after pack went the 600 and I loved the flying, it was enough flying time to try something new and then get to grips with it....great! roll on pyro flips.

    The motor was getting really hot on the 600 so I thought I would give it a rest and fly the 500FBL, which was flying great except for the tail. I had a BLS257 handy so I thought I would try that - except I forgot to put the tail servo arm screw in and it came out half way through the second flight and this time I could not save it.....one seriously damaged 500 later I went back onto the 600.

    I was getting tired but only had two packs to go, so put the second to last pack in and was doing some inverted hovering in front of me when I lost control. Yes, the heli stayed hovering inverted for ages whilst I was madly pushing sticks, hitting throttle hold etc etc and nothing was happening!!!!!!!! I was just standing there shouting at the people watching me to take cover and just watched helplessly as the heli slowly slid towards us and then hit the ground, still at full power WTF ??????? One seriously destroyed heli. I then plugged the battery back in jut to check, and everything seems to work okay !

    How is this even possible?

    Ah well, I still had a blinding day and nearly went though all of my packs for the first time in one session!

    Gareth


  • #2
    19 packs ???
    Cheers,
    Simon
    --------------------------------------------
    Trex 700N & E
    Futaba 18mz and some planks !!

    x 2

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    • #3
      Re: Fantastic day and strange scary crash...

      Originally posted by Si_B
      19 packs ???
      Life of the other half lol

      19 packs, sweet

      Wish I could take the day off to go flying
      + 7 x Eddies finest EGS's


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      • #4
        LOL - 19 packs is a long story.....

        Anyway, just stripped the heli and found two odd things.....

        1. I have a Kontronic HV80 esc with built in bec. The bec has two connectors to double up on current supply to the receiver, one also carries the signal, but the other only has a red and black wire. This other connector with the red and black wire had come out of the rx. If it came out at the start of the day, or during the final flight or when it crashed I don't know. However there is still another power supply to the rx. Could this have caused a brown out?

        2. The one way (which is new) is seized solid ???

        Gareth

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        • #5
          Rare but the one way hasn't thrown one of the pins inside which has caused it to lock ?
          Velocity 50
          Synergy N5
          Fury 55 FBL
          Trex 700

          Light travels faster than sound, this is why some people appear bright until you hear them speak....

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          • #6
            Originally posted by Fixxxer View Post
            Rare but the one way hasn't thrown one of the pins inside which has caused it to lock ?
            The one way has locked, but when I lost control, it was right in front of me, and there were no noises or change in pitch or anything, it just carried on happily at full power!

            Gareth

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            • #7
              19 packs!

              Martin

              Most of the Aligns, fair few Spektrum bits, bunch of Align & HiTec servos, OBE, VD & Bar.

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              • #8
                Have you got the throttle set to go low if it enters fail-safe mode?

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                • #9
                  Blimey Gareth, not good...

                  ...but at least you have the spares on the shelf


                  My one way siezed on my NSP, you need to replace the lot if you havent already, hub/one way and the sleeve.
                  x 3

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                  • #10
                    Am truly amazed, not at the crashes - cos these things happen in this hobby - but 19 packs!!!!!!!!!! I can't hold it together for 4!!!!!!!!! And I only have 3 packs for the 450 anyway!!!!!! Strewth, well used charger!!!
                    Mike
                    TRex 600NSP, OS55, MicroBeast
                    TRex 500ESP
                    TRex 450Sport,TT, Scorpion 2221/8,
                    Futaba 14SG Optifuel 20%
                    Member RCHA BMFA BMAC BALPA BARC

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                    • #11
                      Originally posted by Mark_T View Post
                      Have you got the throttle set to go low if it enters fail-safe mode?
                      Erm....no, don't think so!

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                      • #12
                        Originally posted by coptermanic View Post
                        Am truly amazed, not at the crashes - cos these things happen in this hobby - but 19 packs!!!!!!!!!! I can't hold it together for 4!!!!!!!!! And I only have 3 packs for the 450 anyway!!!!!! Strewth, well used charger!!!
                        LOL! five chargers and two huge power supplies........bought a load of different ones for my own evaluation......

                        Still takes me days to recharge the lot

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                        • #13
                          Very odd behaviour....unlucky Gareth
                          T- rex 600n V-bar
                          Logo 550sx V-bar
                          Logo 600sx V-bar
                          Logo 600sx V-bar night flyer

                          VBControl, but not the gay white version as i'm simply not gay enough to pull it off!

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                          • #14
                            Blimey gareth, 19 packs worth of flying, thats mental.
                            Stupid Q but you did change the BEC lipo as well....lol
                            Sounds like a brown out to me, or a loose connection, give it a full check over.
                            I would highly recommend, if planning to do that many flights in 1 day you do a full check over the heli at least every 3rd flight.
                            James

                            Sponsored by
                            Align-Trex.co.uk
                            Optifuel/optipower
                            MKS servotech


                            5 Eddie gold stars and christmas star

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                            • #15
                              ....and again today....this time own fault - doing tail down funnels and kinda lost it on my last pack...

                              This time as well as all of the usual, the frame has been broken :-(

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