tommcb6016 Posted October 2, 2011 Share Posted October 2, 2011 (edited) Went up my field last night about 5:30 and set up my kit did my usual pre flight checks and spent a while tuning my motor (volution macro) Set up for a reverse as it was blowing a bit, wing up...perfect reverse then full power started running.. about 1ft of the deck and I heard something strange and lost power I landed with no fuss and found that my throlle cable was in two pieces but not the wires for start/stop I'm struggling to work out how it found it's way into the prop never had this problem before! The prop has some damage to one tip but should be able to repair with some araldite. Will be on the phone to Parajet Monday morning to order a new cable and some sleeving! hopefully not too much expense Has this happened to anyone else?? Tom missed a bloody good flight Edited October 2, 2011 by Guest Quote Link to comment Share on other sites More sharing options...
Yogi_9 Posted October 2, 2011 Share Posted October 2, 2011 Not the throttle cable but lost the ends of the blades when this happened !! Quote Link to comment Share on other sites More sharing options...
alan_k Posted October 2, 2011 Share Posted October 2, 2011 Ooh, nasty Tom. Glad you didn't come to harm. Looks like the throttle cable spiral took the brunt and flipped the rest out of the way. Not had a problem with the throttle myself. Cheers, Alan Quote Link to comment Share on other sites More sharing options...
morgy Posted October 2, 2011 Share Posted October 2, 2011 could it have anything to do with the fact the parajet has big hole in the cage Quote Link to comment Share on other sites More sharing options...
Farmer_Dave Posted October 2, 2011 Share Posted October 2, 2011 Retrieved a mate over a year ago. He'd landed out. Prop had dinged the throttle cable and was stuck on about two thirds (so climbing gently) and prop had cut the kill switch wires (so no cut out) Luckily he had a fuel tap which he found and turned off, once he'd decided where to land. The reason it happened....... He'd removed and refitted the engine but ommitted a cable tie from frame to cable. There were two originally. As ever, I hope anyone reading this, wont make the same mistake Dave ps.. bl**dy good flying this weekend. Spring thermals ? Quote Link to comment Share on other sites More sharing options...
haze Posted October 3, 2011 Share Posted October 3, 2011 Sorry to hear you've chopped through the cable, Tom. I'm surprised you managed to do this, though. Parajets have their throttle cable tied up along the swing arm so it's normally really difficult to get the cable to go that far back. Is that clamp still there? All the best Steve Quote Link to comment Share on other sites More sharing options...
morgy Posted October 3, 2011 Share Posted October 3, 2011 ps.. bl**dy good flying this weekend. Spring thermals ? WHAT IN AUTUMN????? they happen in spring!! the clue is in the name Quote Link to comment Share on other sites More sharing options...
enzo200500 Posted October 3, 2011 Share Posted October 3, 2011 Just looking at the pictures there of the sliced cable. How did it manage to get so far back near the prop, the break is right up near the throttle grip?? I could understand if it was down the other end of the cable. Quote Link to comment Share on other sites More sharing options...
tommcb6016 Posted October 3, 2011 Author Share Posted October 3, 2011 I'm still at a loss about how I managed this one, only thing I can think of is I could have had the cable twisted causing it to loop back towards the cage. Alan, thanks it could have been a whole lot worse but luckily the cable released and didn't lock me into full power! although I can reach the main power switch in flight. Steve, The cable was connected to the swing arm I have simulated trying to get the cable into the prop before (without the motor running) and couldn't do it. Quote Link to comment Share on other sites More sharing options...
enzo200500 Posted October 3, 2011 Share Posted October 3, 2011 Tom, is yours the Volution 1 model without the netting? Just been in garage checking mine, and your throttle hand would have to be way back to catch the prop. Maybe the cable could bend into such a shape as to push through the netting, if fitted. Quote Link to comment Share on other sites More sharing options...
tommcb6016 Posted October 3, 2011 Author Share Posted October 3, 2011 Mine is a volution 1 but I have fitted netting on the top section. pilot error of some sort but I can't figure out how Quote Link to comment Share on other sites More sharing options...
tommcb6016 Posted October 4, 2011 Author Share Posted October 4, 2011 Started fixing my prop today, what's the easiest way to balance it ? I'm thinking up over complicated things with lots of bearings... simple solution ? Tom Quote Link to comment Share on other sites More sharing options...
tommcb6016 Posted October 13, 2011 Author Share Posted October 13, 2011 Got the new cable from Parajet yesterday and fitted in about an hour. Noticed a cracked muffler strap whilst doing it so welded it up and now ready to fly again Still can't figure out how it happened though... Quote Link to comment Share on other sites More sharing options...
spigot Posted October 13, 2011 Share Posted October 13, 2011 simple solution every time.... Don't bother balancing With the size of that repair the weight difference will be bugger all, just file it to shape when totally hard. and wet and dry till smooth. If you want to check perfection. use the kitchen digital scales and weigh each prop, if within 3 grams of each other your on a winner. Don't bother with the next bit . Check the balance of the heaviest prop by balancing across a thick blade (edge of a file held in a vice is good) and mark with tip-ex the center of balance on each edge. now transfer the marks to the other 2 blades. They should balance at the same point. If not a generous application of spray lacquer to either tip/ root or full length will bring the weights into line. Simples Colin B Quote Link to comment Share on other sites More sharing options...
clivefreeman Posted October 13, 2011 Share Posted October 13, 2011 Heres a great video of how to prepare props !! [youtubevideo] [/youtubevideo] Quote Link to comment Share on other sites More sharing options...
tommcb6016 Posted October 14, 2011 Author Share Posted October 14, 2011 Heres a great video of how to prepare props !![youtubevideo] [/youtubevideo] Thanks Clive, quite a helpful video Quote Link to comment Share on other sites More sharing options...
tommcb6016 Posted October 14, 2011 Author Share Posted October 14, 2011 Ok.... having put my motor back together, I tried a "reconstruction" and I CANNOT get the cable near the prop Without having stalled one side of the wing and having my hand almost inside the cage I cannot do it... So I am now left doubting myself! Maybe the cable snapped due to a weakness in the outer sheath and the prop was cause by a stone whilst I was tuning my motor on the ground bloody confused now Quote Link to comment Share on other sites More sharing options...
tommcb6016 Posted October 14, 2011 Author Share Posted October 14, 2011 So I am now left doubting myself! Maybe the cable snapped due to a weakness in the outer sheath and the prop was cause by a stone whilst I was tuning my motor on the ground bloody confused now Wouldn't explain the damage to the sleeving though... Quote Link to comment Share on other sites More sharing options...
haze Posted October 14, 2011 Share Posted October 14, 2011 I was wondering how you'd managed it. Quote Link to comment Share on other sites More sharing options...
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