turboplanner

......Mavis is stretched out on the beach. The straps on her top are undone but the blotched and wrinkled old skin is saying “you’d prefer a Stonefish”, and bull .....

.....immigration formalities and Customs which had Cappy in a State of terror every time he went near an airport; it seems that furtive look attracted officials every time.

Mavis excused herself to go to the powder room, and left Ratface sitting on the seat.

About an hour later a case of Berri oranges was delivered to the seat beside him with a note: "Couldn't make it this time, a lifesaver walked past and.....

“.....going somewhere handsome?”

”Well.....”

".....his throat trying to choke the XXXX; but he was just too strong for me. Think I'll invite him out in the Tiger tomorrow, unbolt the belts to the last thread, and do an aerobatics session. That should......."

........to impress Dragon Lady who runs the Renmark Pub. The Rat tells every female he meets that he's a dragon, but Dragon Lady will sort him out in about two seconds flat - straight into the River, and......

 It's only been in the last 20 years or so that some of the fastest cars produced are diesel. That situation may well change when and if direct injection is more widely used on "non compression ignition" (previously petrol) motors.Nev

 

We're there now with compression ignition petrol; take a look at the new Mazda SKYACTIV-X engine range: https://www.mazda.com/en/innovation/technology/skyactiv/

While not compression ignition, for some years the Nissan Patrol petrol model's total cost of ownership has been less than the diesel, and you gate back the benefits of lower noise level, and cleaner hands after refuelling.

My prediction is the diesel will be phased out in the medium term in Australia due to the difficulty of getting clean fuel (needed to comply with the latest emission levels.

• In the 4x4/SUV market several shifts have occurred.
   
  
• Lower taxed off-road diesel is no longer available for them
   
  
• The  much lower fuel consumption of diesels than petrol has gone with the spectacular reductions in petrol consumption.
   
  
• For the average person who pays someone to service their cars, Diesel Particulate Filter replacement can cost more than the car's value. I was quoted $3,800.00 last year on DPF replacement for a Subaru Outback, and even replacing it myself cost around $1,500.00
   
  

Thanks guys, I should have checked more 30 years ago, but better late than never I guess.  I reckon those engines like the Merlin were over 1000 hp, so that Caterpillar engine at 225 hp would have been a bit small maybe.  But it is a bit surprising that diesels were not used for tanks, you would think that they were a better option than petrol, especially with the extra risk of petrol with respect to refuelling fires.

 

Torque x rpm = power

Our M1 Abrams tanks have turbine engines running on whatever fuel they can scrounge as they move along.

Why would we? When Austin A40s were around Toyota was probably producing engines with similar lifespans or even less (remember the 1950s & the slogan Jap Crap) Kias beginning production in 1944 & Hyundai in late 1967. Bit hard to compare them when none were in Australia to my knowledge at that time.

 

Well I wouldn't because of course the older engines had problems, and most of them at that, but some people like to compare old aircraft engines, some even radials from the 30s of last century, with the current crop, the inference being the current ones are all good.

 Turbs, I don't get what you are at on this one. but

 

   Any engine has  to be cooled so a certain% of the energy has to be dissipated by the cooling system at all times.

 

Phil Irving certainly got it and you certainly get it when you start building race engines to pump out 2+ x the original power because you HAVE to do something.

What you are talking about is dissipating the heat outside the combustion chamber; what I'm talking about is dissipating/passing through/rapidly cooling the combustion chamber before temps of 1000 < 2500 deg C can melt anything, inlcuding valves.

Austin’s used to get about 30,000 miles before they needed rings and bearings.

 

But we don't compare Kia, Hyundai, Toyota etc with Austins.

Austin’s used to get about 30,000 miles before they needed rings and bearings.

From a student and training facility providers perspective, the Foxbat will be easier if time and money are critical.

 

A Jabiru will probably make a better pilot but at the expense of time and hours flown.

 

A Foxbats nosewheel can be "held off" at not much more than walking pace, taking off and landing. Foxbat "yokes" maybe seen as more GA .....

 

Wheelbarrow landings are never kind to ANY aircraft.....

 

There are plenty of joysticks in GA.

You're right about a low-energy aircraft; the extra time and cost required for incident-proofing in all weathers as against a zero wind flyer,is likely to put a pilot going for a CPL  out of pocket compared to a C152, PA-28 or C172,  and the whole culture is different to GA so a lot of re-learning is involved, but if you intend staying with RA and low-energy they will make you a better pilot.

 Turbs, I don't get what you are at on this one. but

 

   Any engine has  to be cooled so a certain% of the energy has to be dissipated by the cooling system at all times. Heat flow is proportional to temp difference between the bits to be cooled an the cooling medium, so if the ambient goes up 10 degrees the engines temp will rise the same amount. Aircooled engines actually cope well with high temps and aircooled tanks performed well in deserts. If the 10-20 degrees is too much then it's not ok but no engine should be that critical including any liquid cooled one.

 

 Thruster. I agree but I'm generalising across all Piston motors including diesels earth moving  heavy transport etc and piston design is critical especially with the materials used. Lycoming, Continentals Franklins etc don't really  have any problem  in a normal TBO. I can never recall a piston breaking up in one. It's usually only the valves and I can't see one "top" in say 20 years 2300 hours is too much to bear. Poppet valves are in an extreme environment.  The main problem with those engines is they don't get used enough. Nev

 

You're talking about the outside of the engine, not the combustion chamber where the temp can get to 2500 deg.C

2510 deg wouldn't make any difference.

.......BBQ was about to start Crocodyllus Unitraccis waddled up the beach arming with a pen knife and offering to cut off the ..................

..........operate on each other. After 30 minutes of snapping and clawing, neother could get an AI grip on the other.

Crocodyllus Unitraccus said to Crocodyllus Hiahorus "You realise that if one of us wins this one the other is still going to lose his eventually, better that we work together, so the following day on a sand bar in the Don River several people walking their dogs noticed what they thought was a dead croc. "I've never seen them so close to shore and not moiving when you approach" said Madge to the local butcher. What she hadn't noticed was CH's eye which was slightly open, or the shadow of CU next to a Mangrove tree, which seemed to be moving.........

What I wrote is common knowledge , all other things remaining the same. If it pushes the thing into a critical area that's something else. Simple thermodynamics you will see in plenty of references on this matter. In hotter ambients the prop would absorb less power( Less dense air higher density altitude) A general rule is more gas flow more power but that's not directly related to ambient in any way that would increase  a power output. Nev

 

I'm basically saying the same as you; a 10 degree increase in ambient will produce a 10% increase in nett heat.

If you get a 200 degree in nett heat it's not the ambient.

Ambient should only raise the   temps by the same amount as it is above normal 

 

Power demand will raise combustion chamber temperature much more and much faster than ambient.

Leaning off will do the same.

.......settling down rowdy’s like HiHo, Capt and OT when they interjected with points of order and that stuff. “All I want to do is fly” said Turbo, but....

....dinner planned in the Bone RSL.

Not many people know this, but you can get "special orders" there as long as you order ahead, so Turbo phoned Cappy to see what he would like. "I'll have a rear steak" said Cappy, and Turbo just nodded because Cappy was a rear person.

"Would you like to see my Tyro" asked bull when they arrived, and bull was silly enough to let Onetrack have a fly. It was a 40 degree day and gusting, but although Onetrack told us afterwards at the RSL that he had never flown before, he just used the skills he'd developed on the D9 and made an almost perfect flight. All agreed there should be more Tyros in the air and bull.......

......Turbine Music, which was making a fortune for its singers, who were consistently hitting the top of the Itunes chart, by teaching them to sing. "The essence of a hit song is that is has a tune, and some sentences; get that right and you'll be on top of the Charts" Turbo, the founder of Turbine music explained as he stepped into his Challenger Executive Jet bound for............

 ......lighties.................

...................Turbo had managed to keep that quiet, and had been forced to disguise her beautiful figure (kept in trim [avref] by workinjg the step [avref] in the Aviator's Gym [avref] for five hours [(Log Book Avref] each day), when she realised, very early in the history of WF that Cappy was a pervert.  FT had had to also disguise herself. Both were now part of the Me Too movement which was tracking Cyber slimers like you know who. Returning to HiHo's excellent summary and the smell of cow pats, a historic sign was placed above the mound of earth above the Turbo encabulator which was still digging down to China, and HH flew the Drifter back to..............

.............Turbo was far too valuable to lose due to his constant moderating influence on the out of control Captain who had just bought a string of gin joints and was using them as a tax didge to cover his dringking habit, and the decision was made to pay him $750.00 for each contribution, this being the first. They also felt that bull was equally necessary, even though he lapsed into silences at the times he wandered through sugar can fields looking for crashed Tyros, and decided he should be paid the same amount. This left the Captain in an awkward.............

See photo of mobile tower.