openspaceman

Have you a link to the diesel version?

Yes, pine and you can see the marks the harvester rollers made

Still using mine, must try something modern but not girly like an ms261

I think the stuff in the annual rings is the tree trying to contain the damage/water-loss/infection in comp 1 and it had succeeded. The darker bands are tyloses laiddown to block the vessels, the other darker wood is denser higher quality reaction wood, again to strengthen and contain any infection. The last bigger wound 2-3 years ago where the callus has started wrapping round the wound shows the failure of comp 2 as an infection has got into the whole segment but note the lack of discolouration in the most recent rings (comp4?)

Yes and at 90psi I make that 28kW delivered to the saw but why so much input for a 4hp saw? I've always liked the idea of a 2t motor running a sideblower for a pole saw, telescopic tube to carry the air and no need of a return pipe.

I cannot comment on the pathogens but this stem looks like it had had several bark wounds which it had contained till the latest one; strimmer or rabbit?

No problem. Yes my figure is the bottom of the range but not only is oxidation an issue (and you are probably right it doesn't become a big issue till 82C but by then you will burn yourself on the spool block on my older tractors) but the viscosity has fallen away. I'm not sure what a centistoke feels like but on straight iso32 hydrotip by 100C the viscosity has fallen to 5 centistokes and the optimum range is between 16 and 40, 40 is somwhere around 43C. Hot oil definitely causes a lot more wear to the spool. It can be bad to run too cool. I have had a couple of experiences (once long ago on a transaw and more recently on a jensen A340 feed pump) where the machine was put straight into work from below freezing cold and the cavitation destroyed the ( possibly ailing) pump in seconds.

Many thanks for that, a bit out of area but I know someone that travels past by.

Not cheap but convenient, which one is it in Bolney?

This is what is known as swaling in England? It's covered by the heather and grass burning regulations and only lawful between November and April. Easter is the bad period for wildfires in my area as this is when the standing dead grass dries out enough to sustain a burn which moves into the heather and gorse, later in the season the lush new growth smothers it early. Mid June is when the damaging fires take hold as then there is enough dry material for the fire to get hot enough to move into the pine.

Depends on how much you want to spend, a monitored unit with an immobiliser will cost over 500 quid and an annual subscription. A cheap stand alone one will cost less than 100 and a top up every month or so. I have had two cheap types play up in one way or another ( and use up all their credit "phoning home" before I could do anything about it) and none of them work if parked out of reception.

No more than blood heat, by the time it reaches 45-50C it is affected by oxidation which shortens its life. Straight hydraulic oil has few additives to combat deterioration.

I'm not aware of anywhere left that dispenses red from a pump in my neck of the woods. I'm out of red and the supplier won't deliver for 14 days so if anyone knows where I can turn up with a grab tank in the back of a transit and fill 400 litres I'd be keen to know, anywhere in North Surrey or West Sussex would do. Bulk deliveries are about 70p/litre at the moment.

My edition is 1975 (first metric edition??) Table 69 p266 0.76m3 to 7.5cms top

Not really in control, the developer has the ransom strip for access and this generally is worth 30% of the uplift in value of the land from agricultural to building. The crux is is there another access.

Shame you're 180 miles west of the heap that was to be chipped for Slough Power station and needs a new home now. Mind arb waste is horrible stuff to process, unlike cordwood that can go through a processor.

Well then I got a tarrifr of 36 for JL which then corresponds to a volume of 0.76 at 23m and 30dbh.

Someone with more practical experience will probably be more helpful but IMO the two are intrinsically and inextricably linked. Cracking is one of the simpler drying defects to explain and it is caused by two different phenomena. The first one is that the outside surface of the wood dries to below its fibre saturation point before the middle does. Now wood doesn't shrink much while all the water in the cells and vessels dries out but once that has gone (at about 30%mc) the water that leaves is associated with the cell walls and this causes the wood to shrink. So if the middle is still wet and full size the surface cannot shrink around it and so a crack is pulled. Temperature affects how fast the water migrates through the wood and also increases the water holding capacity of the air around the wood. The art is to balance the RH and temperature such that the moisture is moving from the middle to the outside at the same rate it is moving from the surface to the air. The next thing is that wood shrinks more tangentially than radially and not much at all in length. So even if you are careful about drying below the fibre saturation point a baulk which boxes the centre of the log will still have tension in the faces which will lead to cracks opening and closing as the humidity changes. This is one reason for quarter sawing the tangential shrinkage is then across the thinnest section.

As do I, is that cheating?

Spruces tend to have needles radiating uniformly around the shoot when looking it from the bud, firs seem to have a "parting".

I cannot see it's possible unless one of the supplies is allowed under another house on its route.

Bitcoin anyone?

I fancy an old steam set from a ship and a flash tube boiler

Probably it will in a shed . I've recently picked up an oak ring which was in the field at work, been there 2 years but in contact with the ground. Sap wood was rotten but I cut a 25 gramme section of heartwood and it oven dried to 12.6 grammes. That's 50% water, probably more than when fresh felled.

At least they were told, our government simply quantitatively eased the situation and effectively stole from savings by more than 10% with no complaints.