Kyle Communications Posted March 17, 2023 Share Posted March 17, 2023 News from Eprop INFORMATION: now E-PROPS Durandal propellers TBO = 4000 hrs. For both EASA certified or non-certified propellers. 2 Link to comment Share on other sites More sharing options...
Carbon Canary Posted April 16, 2023 Share Posted April 16, 2023 Is there any calendar TBO ? I believe DUC imposes a 5 year and/or 2000 hr TBO, hence my question. Also interested in any direct comparisons between DUC Swirl 3 and the equivalent e-prop, all other things being equal, if one exists. Link to comment Share on other sites More sharing options...
Kyle Communications Posted April 16, 2023 Share Posted April 16, 2023 Eprop beats the DUC no issues..4000 hr TBO. not sure on years. I dont think it really matters at 4000 hrs 1 Link to comment Share on other sites More sharing options...
Blueadventures Posted April 16, 2023 Share Posted April 16, 2023 3 hours ago, Carbon Canary said: Is there any calendar TBO ? I believe DUC imposes a 5 year and/or 2000 hr TBO, hence my question. Also interested in any direct comparisons between DUC Swirl 3 and the equivalent e-prop, all other things being equal, if one exists. Some DUC’s were 800 hours and like Mark said Eprops were 2,000 and now 4,000. Link to comment Share on other sites More sharing options...
Kyle Communications Posted April 16, 2023 Share Posted April 16, 2023 I have asked Eprop the question and will post when I get the answer back...most likely tonight Link to comment Share on other sites More sharing options...
facthunter Posted April 16, 2023 Share Posted April 16, 2023 4,000 hours seem s a lot of life for a prop. I wonder how they arrive at that figure? Nev Link to comment Share on other sites More sharing options...
Kyle Communications Posted April 16, 2023 Share Posted April 16, 2023 They do extensive testing and destructive testing..they have videos on it They would have not got the approvals if it didnt hold up to the hours The paperwork approvals is attached here tcds_easa.p.512_epgu3_030223.pdf 1 Link to comment Share on other sites More sharing options...
meglin Posted April 16, 2023 Share Posted April 16, 2023 What is the maximum performance achieved in operation? Link to comment Share on other sites More sharing options...
Kyle Communications Posted April 16, 2023 Share Posted April 16, 2023 37 minutes ago, meglin said: What is the maximum performance achieved in operation? What do you mean? what parameters? Link to comment Share on other sites More sharing options...
rgmwa Posted April 16, 2023 Share Posted April 16, 2023 52 minutes ago, meglin said: What is the maximum performance achieved in operation? This link might be useful: https://www.stolspeed.com/nid/46 Link to comment Share on other sites More sharing options...
Kyle Communications Posted April 16, 2023 Share Posted April 16, 2023 No its not...he tested it to how he wanted to...NOT to how the props are designed to be run His testing was done as if you have a IFA or constant speed. These props are ground ajustable and designed to run a max rpm on a gearbox driven engine If you set them up as per factory instructions you will get a substantial improvement in performance...more than 50 customers I have sent props to with maybe 15 or more different style of aircraft cant all be idiots..they know what performs better than what they had. I have not had one customer that did not get substantial performance increase 1 Link to comment Share on other sites More sharing options...
meglin Posted April 16, 2023 Share Posted April 16, 2023 51 minutes ago, Kyle Communications said: Что ты имеешь в виду? какие параметры? How many hours does the oldest propeller have today? Link to comment Share on other sites More sharing options...
Kyle Communications Posted April 16, 2023 Share Posted April 16, 2023 Got no idea..but some of the aircraft get a lot of use Link to comment Share on other sites More sharing options...
facthunter Posted April 16, 2023 Share Posted April 16, 2023 The most impressive prop I've experienced is a Kiev prop on a HKS V twin of about 700 cc. It easily powered a Normal Skyranger two up. That's a while ago and equal or better may be around now but it was good. The motor ran a bit hot but I can't blame the prop for that. Nev Link to comment Share on other sites More sharing options...
rgmwa Posted April 16, 2023 Share Posted April 16, 2023 1 hour ago, Kyle Communications said: No its not...he tested it to how he wanted to...NOT to how the props are designed to be run His testing was done as if you have a IFA or constant speed. These props are ground ajustable and designed to run a max rpm on a gearbox driven engine If you set them up as per factory instructions you will get a substantial improvement in performance...more than 50 customers I have sent props to with maybe 15 or more different style of aircraft cant all be idiots..they know what performs better than what they had. I have not had one customer that did not get substantial performance increase Are you a distributor for e-Props? Link to comment Share on other sites More sharing options...
Kyle Communications Posted April 16, 2023 Share Posted April 16, 2023 Yes I service Australia and NZ Link to comment Share on other sites More sharing options...
Kyle Communications Posted April 16, 2023 Share Posted April 16, 2023 I just had a answer back from Eprop on the time for their props..there is no time constraint only the 4000 hours due to the way they are made and the special material they use Link to comment Share on other sites More sharing options...
Carbon Canary Posted April 16, 2023 Share Posted April 16, 2023 19 minutes ago, Kyle Communications said: I just had a answer back from Eprop on the time for their props..there is no time constraint only the 4000 hours due to the way they are made and the special material they use Thank you for the follow-up. if there is a like for like performance comparison against a DUC Swirl 3, anywhere, I’d be interested in reading it. I will need to make a prop decision in about 6 months.Standard figment is a DUC. Link to comment Share on other sites More sharing options...
Kyle Communications Posted April 16, 2023 Share Posted April 16, 2023 All I can tell you is that there have been a few DUC props replaced by the Eprop here and everyone of the guys says the eprop is much better..quieter, more performance, super smooth also the engine starts and stops easier because the prop is so light. I have not had one person return a prop. Eprop give a 6 month return on the prop..If you use it and you dont find its a improvement and a better prop than what you like they will give you your money back....someone who stands behind their product https://aircraft.e-props.fr/satisfied.php Just some small feedback...977 of them https://aircraft.e-props.fr/feedback.php 1 Link to comment Share on other sites More sharing options...
Kyle Communications Posted April 16, 2023 Share Posted April 16, 2023 Carbon Canary..what is the aircraft ?..you may find it on the feedback Link to comment Share on other sites More sharing options...
Carbon Canary Posted April 16, 2023 Share Posted April 16, 2023 FK9 Link to comment Share on other sites More sharing options...
Kyle Communications Posted April 16, 2023 Share Posted April 16, 2023 Feedback on FK9. https://aircraft.e-props.fr/index.php?cPath=1_33_192 Link to comment Share on other sites More sharing options...
onetrack Posted April 17, 2023 Share Posted April 17, 2023 A total of 14 feedback reports, with 13 of them from the one buyer/user, isn't exactly a balanced level of feedback. Link to comment Share on other sites More sharing options...
Garfly Posted April 17, 2023 Share Posted April 17, 2023 But Durandal and Glorieuse are the names of the prop types. 1 Link to comment Share on other sites More sharing options...
onetrack Posted April 17, 2023 Share Posted April 17, 2023 Ahhh, O.K - apologies for my error, that clarifies things substantially. Link to comment Share on other sites More sharing options...
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