Blueadventures

Maybe worth a try for him to check the carby up inside where the main jet screws in as there may be some build up of deposits there. I had this happen on a rotax 80hp UL in a skyfpx with fibre glass tanks. Took 6 weeks of trial, parts and hair pulling to find the issue. When cleaned the engine ran smoothest it had ever. Before that always had a slight bump at cruise rpm and if I pulled the carb heat about 2mm it would go away. Always thought of adjusting or placing a spacer on the back of the carb heat knob. Maybe what's happening in his single carb Jab.

IF you can get to Old Station or another flyin near where you live speak with some builders. Cheers

Join EAA and Kitplanes is a good start and money well spent about how things can be done.

Two of my beliefs regarding Rotax 912 UL and ULS engine operation are:- 1. For any engine / prop set up that achieves 5,200rpm WOT in climb or S&L is to reduce rpm by at least 100rpm within 5 minutes as the engine is fully loaded / stressed. 2. Best to set prop pitch to achieve rpm for WOT at 5,800; and don't run more than 5 minutes at that rpm. Maximum continuous rpm to be 5,500. Then considering that most installs have springs set to pull throttle to max rpm if throttle linkages brake; so should the throttle linkage brake and carbs go to 5,800 then you will need to stop engine before exceeding 5 minutes at 5,800 otherwise serious dame may occur to the engine. Therefore a perfect setup in my opinion would be to set throttle / prop itch for 5,800 and have adjustable high throttle stops that prevent exceeding 5,500 in the event of a throttle linkage failure. Also when my WOT setting is achieved I will never run at that rpm continuously. At present WOT is 5,450 and if I was to run at a continuous rpm it would not be higher that 5,350rpm.

I'll measurenext time at the hangar and let you know. also on the prop image on the floor you get an idea of distance ratio, Going out now so I'll look later.

Thanks Mike; I have been a follower and like Roger Lees comments and info. My KISS for any 5,200 if set is to after takeoff drop 100 rpm to 5,100rpm. Was doing this in 2012 on with my UL 80hp in a Skyfox. I am an advicate for the 5500 to 5600 seting to date and for now have 5450 rpm WOT s&l and I'll record how this goes then make adjustments. Want to do some flying trips and looks like not many good days between now and end of month Old Station trip.

Position is as per manufactures spec (page19 if you have a copy) the edge where the titanium leading edge meets the carbon leading edge. Initial pitch set with the supplied guage and then I follow up with the laser pointer. I'm in early days with this prop and have been involved in pitch setting of some E-props in Tractor and pusher configuration with 3 and 4 blade modes. Later on I will adjust for 5500 - 5600 and higher; but for the next month or so will settle at this and record performance over long legs at set rpms.

Hope their not $20 and ticket then 🙂

Your getting a bit slack I reckon; expected to be finish sanded, primed, painted and fitted by 5pm Sunday. All joke aside looking superb. Cheers.

I'll get a couple. Cheers

Not checked the tracking as prop very flexible and tip end portion has little rake as the aggressive cupping and pitch is the inboard 1/3rd. Very happy with the prop did a 1.4 hour flight yesterday (Thursday) and did some long runs s&l at various rpm settings. Will be doing a 2.3 hour flight each way at end of month will have an indication of performance after that.

For info; after adjusting the E-prop and any other prop pitch I check and make final adjustment with my laser pointer pen fitted on my pitch adjuster. The distance between the dots means that pitch is within 0.09 (less than 0.1 and the manual asks for within maximum 0.3 degree so close enough for the second pitch adjustment trail. All good now at 24.5 degrees so will fly this for a while.

For info; after adjusting the pitch I check and make final adjustment with my laser pointer pen fitted on my pitch adjuster. The distance between the dots is means that pitch is within 0.09 (less than 0.1 and the manual asks for within maximum 0.3 degree so close enough for the second pitch adjustment trail. All good now at 24.5 degrees so will fly this for a while.

Danny with some tube sizes Wagga Bike and tyre will have available two qualities of tube and thier respective prices and then up to you to decide. Call and speak with Fred and I'm sure he will provide good in field knowledge and information about tubes. Some times he is unavailable at the time you phone due to instructing and other work tasks. Cheers, you must be close now. Are you getting to Old Station.

Absolutely agree, had nothing but great dealing and good advice when phoning.

Link is Aviation State Engagement Forum (avsef.gov.au) and replys close 19 May 2022. Thanks in advance for any support replies. Mike.

Any pilots that have been to Palmyra YPYA or travelled the area are asked to support the local area with a reply to this proposed change that is considered unnecessary and I believe is an airspace grab that will have a detrimental effect to our flying due to the below mentioned reasons. I'll obtain a better link as been unable to find on CASA or Air Services webb sites. Airservices are trying to have the air space above Palmyra (YPYA) to be in Class D controlled with a lower limit 1500 ft above Palmyra; instead of the E LL 8500 that it currently is. Aviation State Engagement Forum For the attention of Queensland members A number of papers have been submitted that seek feedback or provide information for upcoming activities: Proposed change the Class D lower limit to the west of Mackay. Proposed change to overland permanent military flying areas (R559,R639). Please see the posts on the AvSEF website for further information and to provide your feedback. Draft reply This proposal has many bad safety issues for VFR aircraft within the Kinchant Broardcast Zone. There are many VFR aircraft this are operate in this area, both GA and Raaus. Between the 3 airfields, Palmyra (YPYA), Turtle Park (YTPK) and Marian (YMRI), I would estimate as many as 45 aircraft are permanent at the 3 airfields. We also have many visiting and flyover enroute aircraft that land at Palmyra (YPYA) or over fly; or transit close-by to the airfield. If they are forced to fly under 1500 ft, then we will end up with a much higher density of aircraft compressed into a lesser area of airspace. This could become a safety issue. If they are forced to fly out past the 11 nm step, then this is pushing aircraft up close against the mountain range which regularly generates strong rotor and other types of turbulence during at least 75% of the year. It is preferred that the airspace is left in its current status, further considering its current SFC-3500 using CTAF 132.05. It is also disappointing that myself and others have by chance become aware of this engagement. I would expect that your organization would have made contact with the airfield at Palmyra via the ERSA listed contacts and other information you have on file, and also considering how hard it is to find information on your webb site due to its formatting software and its poor search engine.

All that are unsure should either before or at next bfr advise the instructor to give attention to turns. including about unloading elevator / then alerion use etc. I'm not an instructor so no specifics. Your next flight needs that you do things correctly and specific to the type of aircraft your flying.

Nice Mike You should consider a thread on the build and start with a duplicate of this post. Enjoy and look forward to the progress. Cheers.

Well done mate. Cheers.

Add the words ichy and torcher:) at times

Did another hour today in the Nynja; 2nd session and third flight with the newly fitted E-Prop. Pitched decreased to 24.5* from 25*. Turbulent air so had to get above 3,500ft for smooth air. Happy with results. WOT s&l 5,450rpm 108Kts. 4,000rpm - 75kts, 4,200rpm - 80kts, 4,400rpm 85kts, 4,800rpm - 90kts, 5,100 - 100kts, I'll look at 4,800 to 5,000rpm for cruise of 90 to 95kts. Have a two hour trip end of month to Old Station so will start seeing the actual performance including fuel usage etc and do a few local trips before hand. Trim seems good at 95 kts will know more after some long trips. Hoping to pick up 1 maybe 2 litres per hour better economy on long trips.

Did another hour today; 2nd session and third flight with the E-Prop. Pitched decreased to 24.5* from 25*. Turbulent air so had to get above 3,500ft for smooth air. Happy with results. WOT s&l 5,450rpm 108Kts. 4,000rpm - 75kts, 4,200rpm - 80kts, 4,400rpm 85kts, 4,800rpm - 90kts, 5,100 - 100kts, I'll look at 4,800 to 5,000rpm for cruise of 90 to 95kts. Have a two hour trip end of month to Old Station so will start seeing the actual performance including fuel usage etc and do a few local trips before hand.

Video by Trackley. Includes my coolant issue and thanks to Travis and two other guys I was airborne quickly again.