Black Bear Posted November 17, 2013 Report Share Posted November 17, 2013 I was watching some videos of full down autos and noticed a few stinger strikes(one guy in an R-22 scraped his stinger twice during the flare) and realized that I was never taught what constitutes a significant strike. For example, one that might require inspection by maintinance. We have all probably noticed during pre-flight, the evidence of a strike on the undeside of the stinger, without deformation of the stinger itself, but with no knowledge of when the strike occurred or whether the aircraft was inspected afterwards. I don't believe that I have ever had one, but it got me thinking, how noticable are they when you have one and when should it be written up for a better look? 2 Quote Link to comment Share on other sites More sharing options...
wopilot Posted November 17, 2013 Report Share Posted November 17, 2013 If it looks extremely bent/warped or loose. But as with anything, if you don't feel comfy if you see something... Squawk it Quote Link to comment Share on other sites More sharing options...
ridethisbike Posted November 17, 2013 Report Share Posted November 17, 2013 Of the two people that I KNOW have had tail strikes, neither felt it. They heard the grinding sound though. If you think you hit the stinger or felt close to it, just double check on the post flight. Quote Link to comment Share on other sites More sharing options...
wopilot Posted November 17, 2013 Report Share Posted November 17, 2013 Of the two people that I KNOW have had tail strikes, neither felt it. They heard the grinding sound though. If you think you hit the stinger or felt close to it, just double check on the post flight.I chuckled, because the two people I saw with a stringer strike ... Felt it... We took the stingers, mounted it on plaques and our BCo CDR at the time presented it to them at the solo rides! Good times Quote Link to comment Share on other sites More sharing options...
rubidug Posted November 18, 2013 Report Share Posted November 18, 2013 I was practicing auto's once, and timed the flare a little late. I guess I hit the stinger, as the instructor I was with (not my usual daily instructor) told me I was a little low on that one, and left some red paint on the taxiway. After he told me I hit it, I KNEW I was gonna get an ass chewing. When I told my daily instructor what happened, he looked at me without changing his facial features, and out-stretched his hand. "Welcome to the Club!" What a relief!!! Quote Link to comment Share on other sites More sharing options...
nightsta1ker Posted November 18, 2013 Report Share Posted November 18, 2013 Student's should never get an ass chewing for making a mistake in training (unless they are solo and doing something they should not be). The instructors should. Instructors need to protect the aircraft and the student. In any case, stinger strikes are generally not a good thing to get in the habit of, and if you hit them hard enough, more damage can be done. It's generally worse for a Robbie than it is for a Schweizer as the stinger is attached to the vertical stab in such a way that it can damage the vertical stab if it gets compressed on a harder strike. Not something you want to do, but if you find the telltale missing paint and light scrape... well, as long as there is no other visible damage, you are probably all right. Quote Link to comment Share on other sites More sharing options...
Black Bear Posted November 19, 2013 Author Report Share Posted November 19, 2013 It got me thinking, if you're not to worry about scuffed paint, how many strikes have occured, known or not, that could have caused unseeable damage to the TR gear box, tail boom or TR drive shaft and it's associated parts? Quote Link to comment Share on other sites More sharing options...
WolftalonID Posted November 19, 2013 Report Share Posted November 19, 2013 Our maintenance dept puts torque stripe on the stinger to identify when its been inspected after a strike occurs. If my preflight shows missing paint and bare metal...we dont fly until its cleared for flight by inspection. I always check after my flights too. So far I am in the clear! Which makes me happy....my instructor taught me well. 2 Quote Link to comment Share on other sites More sharing options...
pilot#476398 Posted November 19, 2013 Report Share Posted November 19, 2013 Paint on the bottom of the stinger? Haven't seen that in years!,...and torque stripes? Once they were everywhere, now finding one is a delightful treat! Quote Link to comment Share on other sites More sharing options...
iChris Posted November 19, 2013 Report Share Posted November 19, 2013 I was watching some videos of full down autos and noticed a few stinger strikes(one guy in an R-22 scraped his stinger twice during the flare) and realized that I was never taught what constitutes a significant strike. For example, one that might require inspection by maintinance. We have all probably noticed during pre-flight, the evidence of a strike on the undeside of the stinger, without deformation of the stinger itself, but with no knowledge of when the strike occurred or whether the aircraft was inspected afterwards. I don't believe that I have ever had one, but it got me thinking, how noticable are they when you have one and when should it be written up for a better look? 1 Quote Link to comment Share on other sites More sharing options...
gary-mike Posted November 19, 2013 Report Share Posted November 19, 2013 My school also uses the torque stripe on the stinger, I check it every preflight and post flight, haven't scraped one off so far. Quote Link to comment Share on other sites More sharing options...
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