Geoff

(as am now getting towards the end of my flight time Age The Bushman) Yes you are you old Fart:devil:

Yes Wayne you don't get much rev drop if any even at full revs its minimal. have accidentally left it on in a touch and go. Then you will see a 200 to 300 rev drop and quiet a drop in power, not enough to stop the plane from flying just enough for you to notice something different.

Hay Ross this is how our wings looked when we started work on them, sent photos to jab Jamie said we had got into them with angle grinder (not true) had to re fiber glass the leading edge with strips?

That picture over Sydney;);););)

Me to thanks Paul

by Tom Fey The Unlimiteds go flashing through the racecourse, engines howling, air shearing, heat waves streaming. Four hundred eighty miles an hour is 8 miles a minute, and the elite racers take about 70 seconds to cover the 9.1 mile Reno course. If you could take a souped P-51 racer flying the circuit at Reno, slow time down, and examine just one second, what would you find? In that one second, the V-12 Rolls-Royce Merlin engine would have gone through 60 revolutions, with each of the 48 valves slamming open and closed 30 times. The twenty four spark plugs have fired 720 times. Each piston has travelled a total of 60 feet in linear distance at an average speed of 41 miles per hour, with the direction of movement reversing 180o after every 6 inches. Three hundred and sixty power pulses have been transmitted to the crankshaft, making 360 sonic booms as the exhaust gas is expelled from the cylinder with a velocity exceeding the speed of sound. The water pump impeller has spun 90 revolutions, sending 4 gallons of coolant surging through the engine and radiators. The oil pumps have forced 47 fluid ounces, roughly one-third gallon, of oil through the engine, oil cooler, and oil tank, scavenging heat and lubricating the flailing machinery. The supercharger rotor has completed 348 revolutions, it's rim spinning at Mach 1, forcing 4.2 pounds or 55 ft3 of ambient air into the combustion chambers under 3 atmospheres of boost pressure. Around 9 fluid ounces of high octane aviation fuel, 7843 BTU's worth of energy, has been injected into the carburettor along with 5.3 fluid ounces of methanol/water anti-detonate injection fluid. Perhaps 1/8 fluid ounce of engine oil has been either combusted or blown overboard via the crankcase breather tube. Over 1.65 million foot pounds of work have been done, the equivalent of lifting a station wagon to the top of the Statue of Liberty. In that one second, the hard-running Merlin has turned the propeller through 25 complete revolutions, with each of the blade tips having arced through a distance of 884 feet at a rotational velocity of 0.8 Mach. Fifteen fluid ounces of spray bar water has been atomized and spread across the face of the radiator to accelerate the transfer of waste heat from the cooling system to the atmosphere. In that one second, the aircraft itself has travelled 704 feet, close to 1/8 mile, or roughly 1.5% of a single lap. The pilot's heart has taken 1.5 beats, pumping 5.4 fluid ounces of blood through his body at a peak pressure of 4.7 inches of mercury over ambient pressure. Our pilot happened to inspire during our measured second, inhaling approximately 30 cubic inches (0.5 litre) of oxygen from the on-board system, and 2.4 million, yes million, new red blood cells have been formed in the pilot's bone marrow. In just one second, an amazing sequence of events have taken place beneath those polished cowlings and visored helmets. It's the world's fastest motor sport. Don't blink!

Ross I haven't heard of any of the hydraulic lifters valves pulling in, we have one 2.2 that had done 1100 hr before rebuild [school aircraft] with no probs with valves. I probably would go for the new fine finned donk as the cht does run cooler. But still like mine.

Yep I not sure I would like to have a hydraulic engine I think put up with having to check the gaps . It only takes 15mins.

Thanks Guys

Hey Zulu I'm a dumb Ausie What is a HKS

Brentc when you do your tappets do you keep a record of adjustment ie no 1 cly inlet tight exhaust loose No 2 Ok no adjust No 3 inlet tight exhaust O.K We did ours at 25 h for the fist 300 h now only at oil change 50 h. By keeping a record of the adjustments you will be ably to see what is happening. ie if you a valve that you have to re gap every 25 h because its to tight you can bet is pulling into the head. Our 2.2 has 650h so far( Fingers crossed);)

To Dam Right Ian, I know of a mate that had a small oil leak in this area and has just tighten these bolts.

(As far as the reason why they are breaking who knows. The fact is they are breaking and when they do you lose two cylinders.) How many times has this happened? As a Jab Driver I must admit I have not heard of this.

J230 has long wings or it would be a J200

Hay turtle maby they use one of the 3Ts

Had carb ice at warm up to day had to up throttle to hold 1200 so much that when the ice went 2000 rev came up was 5dg with 4.5dp 92 hm. any descent under 2000 rev gets carb heat.

Impressive isn't :)

Lake Frome Lake Frome

Lone Car Near William Creek

H.L.S On the Finke river near Finke

Chambers Pillars Chambers Pillars 2 of them anyway

Mud Flats On the way to Port Keats

Very good and true, but the author clearly has never started a Garrett TPE series turbine, there a bit like setting a bear trap, it takes delicate finger work and concentration and when it goes wrong it'll happen like flam'in lightening and cost you an arm and a leg.

funny thing is I used to land in the prince regent river Were You In This Adam?