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Kyle Communications

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Everything posted by Kyle Communications

  1. Caution Skippy?...my opinion and proven in practice on my own equipment. Also design and operation from the company in the world that makes more than 24,000 propellors a year. What are your qualifications?
  2. 5800 rpm is mainly for CSU type operation. Ground adjustable should be set for 5500 WOT. If you set a ground adjustable one at 5800 when you throttle back to cruise rpm you are now on the back side of the thrust curve from the prop..less pitch is on at say 5000 rpm if you set max rpm WOT at 5500 then of course you have more pitch on at 5000 rpm so the aircraft will cruise faster. Obviously for takeoff the 5500 setting for a gound adjustable in theory will produce slightly less takeoff performance that the one set at 5800 rpm. No different to an outboard engine prop. Ski boats are usually a finer pitch to get the skier out of the water faster but high speed skiers have more pitch on the boat prop. The other thing to think about is those throttle springs on the rotax. Set your engine at 5800 WOT then if the spring breaks...and that is not uncommon then you have 5 mins or so before the engine goes bang or you turn it off and find somewhere to land . If you set the prop for 5500 WOT in the air then if the spings break well then you have a good level of margin to get where you need to go and just turn the engine off when you get close to the field This isnt specific to a particular type or brand of prop it is just a "makes sense" for the engine operation. I had my Bolly set for 5500 rpm at WOT for the 10 years I was flying the girlfriend. I was told to do this by a Rotax engine guy who also is a racecar engine builder for his profession. He is also a flying instructor and has been for a long time. I took his advice more than 10 years ago about this. It also happens that this is how Eprop have designed their props to operate. The new Glorious CSU inflight adjustable prop is set at the 5800 WOT because it is a CSU type and you can set whatever pitch you want which of course is the ideal way but there is a big difference between 3k and 12k Mark
  3. Mothers Day Busy day 🙂 Cooked the boss and her mothers breakfast this morning...sanded the lower cowl ready for some fine filler...that being all done preped the bits for the throttle kits so I can get some done. Went over to Danny's place and turned the tubes to size...used a different tool tip..circular ones. Works better on the stainless and doesnt distort the tube so I have ordered a few of these tips so I can do the rest of the tubes. Got 5 units tig'd up just have to pickle them and will set them up to make sure all is correct and I think I will be ready for production. I need to be retired...its been a big few days 🙂
  4. It dissapeared behind some clouds...after quite a few minutes of watching it.
  5. Lots of yanks cruise at 5400 and 5500...I never push mine that hard except on takeoff. I usually cruise mostly at 5000 but sometime 5200
  6. Mike I am working as fast as the resin will allow me 🙂 Glassed the joins on the outside and inside for the strength and also put some core mat into the flat bottom to strengthen it up. pretty happy with the finish by using peel ply (nylon) the purple stuff in the above pics , over the areas and squeegying it..when you pull off the peel ply when the resin has set properly and it leaves a great surface and of course gets off excess resin. Need to trim it all up now as well. Will let it go off more and do some initial sanding tonight hopefully then hit it with the fine filler tomorrow morning. Let it dry as I am going over to Dannys place in the morning to get some of the new throttle system kits tig welded so I can get them away. Got people chasing me like crazy for them. Just havent had enough time to spread across so many projects 😞
  7. With any luck this maybe finished by the end of the weekend. Sanded the filler to shape over the joins and now layed some nice twill weave glass over the outside joins all the way. peel ply on so will see what its like tomorrow morning..might need to get the heat lamps on it as I want to get that peelply off later in the day. The inside join areas have been filled and I still have to glass that but can do that first up in the morning and the heat lamps will help that as well so all should be fine. Will need to put some coremat on the inside bottom as its a bit flexible also maybe on the sides...I will decide after all the joins are done
  8. This was no kite or ballon...it would have been a very long string..like a few km long
  9. Actually I saw my first UAP a couple of nights ago..here in Brisbane. It wasnt a Plane or a heli or a drone or a star...I do astrophography as well. I tried to film it but it came out crap...now I know why all these videos of them are crap....Bloody frustrating actually. What I was seeing with my eye was NOT how the Iphone was showing it..daytime may have been different but night time was terrible with focus etc Dont know if you will see this https://www.facebook.com/1387087683/videos/366186275464270/ Mark
  10. Mate...the boss has "plans". She who must be obeyed commands it so..especially when they are close friends....Mind you Jack she did ask me where you lived. We are heading to the farm on Wed night after work then stay Thursday and drive to Rocky friday..wedding is saturday and the boss has hair appointment in the morning. We head back to the farm on Sunday and overnight to drive back here Monday. Belive me I would love to be going to Raglan...are you going?
  11. I will be in Rocky that weekend. Trouble is that its for a wedding not aircraft 😞
  12. Filling done...now lots of sanding and then glass over the outside joins and inside joins then fine filler...Cant wait until I finish this part of the build
  13. hahah Marty surely you jest...Mabel was supposed to be a 12 month project..its now 5 years !!!!!!!!!!! and still not finished 😞
  14. Managed to get the new cowl cod piece out of the mold this morning. Fitted the lower cowl and sorted my exhaust outlet at the side then taped it in the correct spot lining it up how I set it. Marked and cut the join overlap of about 20mm and preped the lower cowl and cod piece. Screwed it all together to make sure its all aligned properly. Glued both parts together with carbatec and resin and fitted all the screws. Now just have to wait and I will remove all the screws and fill the holes glass the inside joins and the outside then fill around the joins and start sanding again. Finally have some progress again
  15. So many things going on around here its difficult to get back onto projects. Danny came over tonight to help me to get the new bottom section of the cowl for Mabel done. I waxed it and did the release agent this week. So if its sunny it will be out in the sun tomorrow and the peel ply will come off Sunday and hopefully I can get it out of the mold. Maybe next week I can have it grafted onto the lower cowl. Then its cut and reweld 2 of the engine pipes and I can then get the engine started and the rest done so Mabel can go to the hangar finally. Got a chance today to work on the CNC to get the press tool made for the throttle rod bar. Tried it in the press tonight and 5 ton seems to be the right pressure to press the stainless tube perfectly round at the right size
  16. If you want a RANS S-21 kit well pay the deposit and the current wait time until shipping is 16 months
  17. I built a kit ICP Savannah XG XL back in 2010. I bought a wreck of a Savannah S model which turned out to be a far bigger project than expected and I have made and built more than 90% of this aircraft. It is almost completed I have a RANS S-21 Outbound kit sitting here ready to go when I finsih the Savannah S rebuild The S-21 powered with a Rotax can suit the 760kg Group G but any other heavier engine or higher horsepower engine other than a Rotax it will not fit as it has a higher MTOW. Rotax powered is 727kg and Titan or other style of engine is 820kg so it doesnt fit Group G https://www.recreationalflying.com/topic/9712-another-new-savannah-xl-on-its-way/#comments https://www.recreationalflying.com/topic/28429-my-savannah-s-model-rebuild-blog/#comments https://www.recreationalflying.com/topic/35636-my-rans-s21-outbuound-build/#comment-479308
  18. No they have not been doing any development at all the design is the same. The prop JG tested I gave to him it was a 175cm prop but he did not test it how he should have...yes you can test the props all different ones to a type but that is not how these are to be used. JG is testing the prop wrong. His tests are based on how you test a constant speed prop not a ground adjustable fixed pitch. The Eprop has been designed to take advantage of the Rotax engine properties and is modern design with modern materials not something the Wright Brothers used. You set the prop up as per the manufacturers specs not what you think if you want max performance. The drone article posted by Blueadventures basically says it all
  19. Also make sure no more that 0.3 deg between any blades lower is better of course Just be aware to that dont jam the trottle on fast the prop tips can cavitate a little...just push it on firmly..also be aware that on landing you will not slow as fast as there isnt a huge paddle like before. Some do slightly adjust their landing approach but its no drama just a little different. I am keen to see your numbers at your std cruise rpm with it. Most get 5 kts increase some more just depends on the type of aircraft
  20. Mike..tie the aircraft down and set your pitch for 5500 wide open throttle on the ground. This is a good starting point. The ultimate aim is to get 5500rpm WOT in the air straight and level. Setting it like that on the ground will get you fairly close
  21. Thuraya is not positioned well for a lot of parts here in OZ..Iridium is ok but be prepared for no comms if you are in a valley or gullies....Inmarsat is the pick of the bunch. it is geostationary like Thuraya but much better position for australia and the look angle is far higher. It all goes back to cost and some usability. I personally like the Inmarsat for portable ops and the plans now at least are sort of reasonable you dont have to maintain a yearly subscription you can just do a month etc I have been into sat comms since Aussat more than 30 years ago then Optus Mobilesat then of course the rest of these ones now. As a side point I just setup Starlink at my farm last night...it is super impressive and fast and literally 2 mins to setup...incredible stuff now
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