Roger Lee Posted February 10, 2014 Report Share Posted February 10, 2014 I have a 3 blade 68" Sensenich that I like quite well. Link to comment Share on other sites More sharing options...
cdarza Posted February 10, 2014 Report Share Posted February 10, 2014 I think the Sensenich will be my choice (just because it comes with the CTLS). Will check n the warp drive though. Roger - i operate out of some semi paved runways - do you think the 68" would get a beating out of short grass or pebbles etc ? Link to comment Share on other sites More sharing options...
Anticept Posted February 10, 2014 Report Share Posted February 10, 2014 Flight design keeps loaner props in stock. It isn't cheap to borrow, but good if you need it. Link to comment Share on other sites More sharing options...
Roger Lee Posted February 10, 2014 Report Share Posted February 10, 2014 The 68" is 1.5" longer at the tip. If you run any of our props up hard on dirt they will pick up debris. Try and find a hard packed area to run up and limit the run ups and rpm during the run up. Any prop on a dirt strip is going to pick up some debris. After owning and testing 8 different props all will pick up debris. The Warp drive deals better with debris, but isn't as good a prop in climb and is heavy. The Sensenich does have a protected edge. If I was in nothing, but dirt the Warp may be a good choice and It could be repaired far easier than any of the others. Even in the field with super clue and baking soda. Link to comment Share on other sites More sharing options...
cdarza Posted February 10, 2014 Report Share Posted February 10, 2014 Great - decisions to make haha - i like the warp price though anyways, thanks again all for the input Link to comment Share on other sites More sharing options...
Runtoeat Posted February 10, 2014 Report Share Posted February 10, 2014 Roger, where's the best place to buy a Sensenich for our Rotax? Just curious, how long was the 2 blade Neuform FD used to use? Link to comment Share on other sites More sharing options...
Mac Bowden Posted February 10, 2014 Report Share Posted February 10, 2014 I've been using the WarpDrive from new and now have 650 hours on it. The prop shows some slight signs of edge damage to the nickel strip but it is still in great shape. Link to comment Share on other sites More sharing options...
Roger Lee Posted February 10, 2014 Report Share Posted February 10, 2014 Hi Dick, 65". Sensenich is based out of Florida. You can buy direct of from me. I can save you a few bucks. Plus you need an adapter kit for $50. Link to comment Share on other sites More sharing options...
FlyingMonkey Posted February 10, 2014 Report Share Posted February 10, 2014 The 68" is 1.5" longer at the tip. If you run any of our props up hard on dirt they will pick up debris. Try and find a hard packed area to run up and limit the run ups and rpm during the run up. Any prop on a dirt strip is going to pick up some debris. After owning and testing 8 different props all will pick up debris. Operational question: If taking off from a dirt or gravel strip, is it better to: A ) Increase power more slowly than normal, to try to minimize disturbance to the surface and kicking up debris OR B ) Increase power as normal, to minimize the time exposed to the dirt and debris on the surface? Link to comment Share on other sites More sharing options...
Anticept Posted February 10, 2014 Report Share Posted February 10, 2014 Increase more slowly than normal. The forward motion of the aircraft helps prevent debris getting pulled into the prop track. EDIT: technical details in next post (tom baker) Link to comment Share on other sites More sharing options...
Tom Baker Posted February 10, 2014 Report Share Posted February 10, 2014 Operational question: If taking off from a dirt or gravel strip, is it better to: A ) Increase power more slowly than normal, to try to minimize disturbance to the surface and kicking up debris OR B ) Increase power as normal, to minimize the time exposed to the dirt and debris on the surface? The lower you can keep the angle of attack on the blades the less tip vortices you will have. Lower tip vortices means less debris picked up. The way to way to reduce the angle of attack on the prop is to have the aircraft moving faster forward with a slower propeller RPM. I agree with Anticept, slow power increase and get the airplane rolling. Link to comment Share on other sites More sharing options...
FlyingMonkey Posted February 10, 2014 Report Share Posted February 10, 2014 Great, thanks guys. Not planning any dirt, but you never know! Link to comment Share on other sites More sharing options...
Tom Baker Posted February 10, 2014 Report Share Posted February 10, 2014 It is not just dirt runways you have to worry about. Some airport will use sand to deal with ice from freezing rain on runways. That sand is really,really hard on propellers. Link to comment Share on other sites More sharing options...
FlyingMonkey Posted February 10, 2014 Report Share Posted February 10, 2014 The Sensenich versus Neuform debate has no real answer except Sensenich is a US company, and Neuform is a Euro company and the Sensenich prop is longer and more prone to damage from sucking up rocks off the runway. Still, Neuform props come with covers. If the sun is on the prop at all use them. I take them on trips. Even if in a shade hangar. Remember, FD puts Neurform on their planes, Sensenich is an aftermarket choice. I wouldn't deviate unless there was a really compelling reason to do it. Sensenich came from the factory on some CTs. Experience from several members show small performance gains over the Neuform, and the Sensenich doesn't have to be overhauled every 1000 hours. At 1000 hours I have no idea why anyone would want to overhaul a Neuform when they could get a brand new Sensenich for a bit more money and never have to worry about that hassle again. Link to comment Share on other sites More sharing options...
Jacques Posted February 10, 2014 Report Share Posted February 10, 2014 Remember, FD puts Neurform on their planes, Sensenich is an aftermarket choice. I wouldn't deviate unless there was a really compelling reason to do it. here is one...easy supply and replacement american CTs are better with american props and european CTs are better with european props. FDUSA try to have the more possible of american content in the plane. when they started importing the CT, Sensenich was not even making props for the Rotax but my first choice would be Whirlwind http://whirlwindpropellers.com/aircraft/ground-adjustable-aircraft-propellers/ Link to comment Share on other sites More sharing options...
Doug G. Posted February 10, 2014 Report Share Posted February 10, 2014 Sigh....ignore the reposts, ignore the reposts, ignore the reposts... Link to comment Share on other sites More sharing options...
FlyingMonkey Posted February 11, 2014 Report Share Posted February 11, 2014 Replace a 65 inch Neuform with a 68-75 inch monster? Yikes. You are talking about a 1.5" difference in arc with a 68...not exactly digging furrows in the dirt. Link to comment Share on other sites More sharing options...
Runtoeat Posted February 11, 2014 Report Share Posted February 11, 2014 Anyone have any pros or cons on color of the prop? Maybe one color is more distracting than another in certain light conditions? During my flight training, I flew a 2005 CTSW with a red 2 blade Neuform and at certain engine speeds and certain sun angles, the prop could be distracting. Haven't noticed this with the white and black 3 blade Neuform on my CT. Link to comment Share on other sites More sharing options...
Roger Lee Posted February 11, 2014 Report Share Posted February 11, 2014 65" to 68" is only 1.5" difference at the tip. I worried a little too, but have had no issues. FD was using them on the CTLS. Link to comment Share on other sites More sharing options...
coppercity Posted February 11, 2014 Report Share Posted February 11, 2014 I have had both on my CTLS. I ran the Neuform until the 1000hr inspection then bought a new 68" Sensenich and now have almost 400hrs on it. I would say the Sensenich has a little better climb performance and about the same cruise. The paint gets knocked off the Sensenich pretty easy but no apparent damage to the blades or metal leading edge, it just feels rough until you hit it with light sandpaper. The Neuform survived fine for a 1000hrs of the same abuse though I did get some pretty good chips in the trailing edge of my Neuform and also some small cracks in the clear coat. I have yet to send it in for inspection but is on my to do list to have a spare. Link to comment Share on other sites More sharing options...
FlyingMonkey Posted February 12, 2014 Report Share Posted February 12, 2014 Eric, my Neuform only has 150hrs and it has a few small chips off the trailing edge also...any idea what causes this? It seems an off place for chips to occur. Link to comment Share on other sites More sharing options...
Anticept Posted February 12, 2014 Report Share Posted February 12, 2014 http://www.sensenich.com/products/item/103 Couple things that caught my eye: The sensenich props are one piece, while the neuform (i believe) are two piece glued together. Stainless steel leading edge to protect the blade. Sensenich props DO have a 2000 hour inspection according to the manual. It must be taken off and sent to a servicing facility. It does not require overhaul, just inspection. Link to comment Share on other sites More sharing options...
coppercity Posted February 12, 2014 Report Share Posted February 12, 2014 Eric, my Neuform only has 150hrs and it has a few small chips off the trailing edge also...any idea what causes this? It seems an off place for chips to occur. The trailing edge of the airfoil on the Neuform has a good bit of camber to it so I'm guessing a number of small rocks that get sucked up nail this part of the blade hanging out. Link to comment Share on other sites More sharing options...
Farmer Posted February 19, 2014 Report Share Posted February 19, 2014 It seems everyone believes they are interchangeable, however not sure that is true in all cases. The CTLSi was not able to be equipped with other than Nueform. Farmer Link to comment Share on other sites More sharing options...
CT4ME Posted February 19, 2014 Report Share Posted February 19, 2014 I believe it takes a good deal of testing (hours) before a given prop can be OK'd. All in good time....? Link to comment Share on other sites More sharing options...
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