skippydiesel

Thruster 88, I don't follow; Are you suing 98 RON, or not, in your Rotax 916?😈

If I use any of the "...4 airports..." the price of AvPulp will be compared with local supply of 98 RON and a decision made, on the day, whom to purchase from. Those that bleat on about the superior quality of aviation specific fuel, do so while ignoring the many thousandths of ULP burning Rotax 9's that have been in operation, all over the world, for the paste 37 years. Not suggesting that there may never have been the occasional fuel related incident - not to diffrent to AvGas burners. I have no concerns at all, using 98 RON from a well patronised (high tun over) servo. I do not subscribe to, the hype that surrounds aviation supplied products. If I did, I would not be flying an "experimental" aircraft. I am not suggesting its all rubbish, just that purchasers who preferer to make their own decisions, use a bit of common sense, (do the research) when contemplating purchasing an aircraft, its maintenance/service needs and of course the fuel to power it. Those that wish to have the illusion of enhanced safety/reliability, should purchase factory built/certified aircraft and have a suitably qualified mechanic maintain it and only ever put fuel in it, that claims to be an aviation specific product containing"superior aviation specification additives". 😈

If not malady a member - join the Rotax Owners Forum - this topic has been extensivly covered.😈

BP Camden 98 ULP $1.83 I carry 20L fuel bladders. If I land at Camden (unlikly) and hitch a ride into the BP, I will save almost $7.00 on 40L If I were to take a taxi - I would loose on the deal. So not just convenience also cost effective to fill from the airfield pump.😈

I am in a quandary. Have contacted Peter Anson regarding his highly recommended 6" Nylon hub tail wheel. "Nylon/Al wheel http://www.ansoneng.com/wp-content/uploads/2025/08/20250813_152356-300x222.jpg http://www.ansoneng.com/wp-content/uploads/2015/09/Nylon-wheel-150x150.jpg"This is the type I use on my own Sonex. It is fitted with quality 6000RS sealed ball bearings and a bearing spacer, enabling full tightening of the axle nut. The wheel is machined from PA6 nylon with a removable 6061 Aluminium rim half. Standard tire fitted is 6″ x 1.25″ 4 ply. Mass of wheel and tire is less than 340 grams (0.75 pounds). " In the course of writen conversation Peter has offred : 150 x 50 nylon wheel – 810 grams (1.79 pounds) http://www.ansoneng.com/wp-content/uploads/2025/02/20241207_180539-300x201.jpg http://www.ansoneng.com/wp-content/uploads/2025/02/20241207_180539-300x201.jpg"Heavy duty and still pretty light weight – these come fitted with a “Hota” 150 x 50 skateboard/electric scooter tyre." The Nylon/A1 wheel is narrower, a little cheaper and lighter than the Hota. The Hota will have better "flotation" ie deal with soft ground and dirt strips better, but likly higher drag (less speed/increased fuel consumption). Both a pneumatic. Decisions! Decisions! All informed comments will be well received😈

See my comment above.😈

Strange thing: I have owned 2 Rotax 912 ULS. Both use 98 RON. Twice I have adulterated this good fuel with a bit of AvGas - No Change to performance. No Benefit other than availability/convenience on that particular trip/day The first went to 900 hrs+ befor being sold. The second I am now using - 250 hrs. In all of the time & flight (Hobbs) hrs never so much as a cough - smooth as silk. As you may know, Rotax 912 UL (80 hp) is recommended to burn ULP Min. 91 RON Rotax 912 ULS (100 hp) recommended to use ULP Min. 95 RON When I acquired my firs 912, I took the view that adulteration, at some stage in the fuel supply system, was possible. With this in mind I decided to go the extra mile/cost and use 98 RON whenever possible (99% of the time). The theory being, that even if the 98 RON had significant adulteration, with other fuels, it was unlikly to go lower than the equivalent of 95 RON. So far so good. Later Rotax came out with a recommendation, for 912 ULS, of 98 RON as the prefered fuel quality ( to do with reduced "knock" potential), can still use 95 RON with care. This is my long winded way of poring scorn on the notion that ULP 98 RON (from a well patronised fuel station) is somehow inferior to that supplied as "AvPULP (aviation grade 98 mogas)" which sounds like a marketing ploy, for which the gullible patrons will, no doubt, pay dear.😈

Already stated - I don't think the OP is reading the responses to their problem.😈

I already asked about the crank speed - no answer as yet. I don't think you can assume that a starting system (battery, wiring, contacter/solenoids, starter motor) are all in good condition, just because the engine starts when warm/hot. Cold starting is always the most demanding.😈

When a pilot declares an emergency, they fear for the continued safety of the aircraft & its occupants. I am unaware of a proscribed situaton (s) or condition(s) for the above. Weather, mechanical, medial, birdstrike, etc etc may all constitute an emergency. The skill / knowledge, level (VFR / IFR / RAA / ATPL / etc) or lack of does not change the formula - what one one pilot may be able to handle, does not mean another may be overwhelmed. My limited understanding - In Australia the Air Transport Safety Board (ATSB) investigates aviation incidents https://www.atsb.gov.au/aviation-safety-investigation-australia ATSB does not lay charges however the State Coroner, where there is a fatality, may advise the police to do so. 😈

Mostly - however many find that a smidgeon of throttle works better than none. I have very little jab experince - don't think they don't have the "soft start" auto ignition advance, of the Rotax, so a little throttle often helps to get the cold engine straight into fast idle. Its also important to keep cranking the engine, until start has been established - To many pilots let the start button/switch go, on the first cough of the engine.😈

Go Rotax!!!! 😈

It seem likly you are flooding the engine and or carburettor rubber parts need replacing. Good Luck! 😈

Hi Del, Check out the Thread Is it too late for me?. Much of what you have asked, is covered therein. There are quite a few Flying Schools in the Hunter Valley - no personal experince. Start by checking out the closest 😈