openspaceman

Hey I would have come over to say Hello ?

I'd just do it in daylight and then deny all knowledge of it

Agreed but if they where mine I'd hook them out with the grapple loader so it comes down to price and who is local. 150 5" beech stumps is a bit much for a Hi lift ?. At 2 minutes a stump that's 5 hours without a break for a grinder

Do what?

The thing about coppicing is that the stool reacts by mobilising lots of adventitious shoots that then compete with each other for light, they grow tall and thin. These long slender shoots would be cut on a regular cycle because they lent themselves to being split and weaved for baskets, crates, wattle etc. Any left overs would be gathered into bundles to make firewood, faggots and bavins. So the yield of biomass from the stool is divided between the collection of sprouts. If you were to select one stem by cutting out the rest it would have a head start on further adventitious growth and more of the yield would be concentrated on that stem, this is called storing the coppice stool. it probably shortens the life of the stool for most species. The yield on any site will vary with species with willow, poplar and eucalyptus being higher yielders than hazel the victorian traditional shortish cycle (7 years) coppice species whereas hornbeam beech and oak would be cut on longer cycles of up to 35 years.

This must depend on the tenancy agreement, if it's a domestic dwelling with a field for a horse my guess is that the landlord will have reserved the right to the trees so they will be his responsibility. If the land is an agricultural holding and the it is an agricultural tenancy then the agreement would say but again if the landowner has reserved the right to timber... The thing is that if it is an agricultural tenancy that came into being by default it could have become the tenta's responsibility.

Yeah , retrieved a few before and after, drones nowadays I suspect. Gone up a hundred times for a new reproduction then.

Here we go OT again ? I never saw one of those but a chap used to park one by the school and then commute to london by train, about 63, it had a JAP Vee twin with valve gear all exposed, I imagine it was a bit of a handful.

Sounds like the stuff we put in model aeroplane engines. That formula the Cooper JAP was that the 500CC class that teams would buy Manx Nortons and rob the engines out, leaving the featherbed frames for people who wanted to upgrade their triumphs to Tritons?, Just a bit before my time.

Ordinary meths is ethanol with 10% methanol and a bitter compound added but I suspect the ethanol is 70% alcohol and 30% water. As such if you add it to petrol the water settles out at the bottom so would make matters worse, Anhydrous methanol is pure CH3OH is made from methane (natural gas) and mixes with petrol and absorbs water

I've experienced this in the past and as @Khriss says it might be from condensation build up. You can get anhydrous methanol for marine fuel tanks, a drop of which in the fuel should dissolve the water to save stripping down, which assumes of course that the diagnosis can be made without taking the carb apart.

This is much as mine, I have no other experience of these modern insulated firebox stoves than my Morso, when I did work with biomass boilers the smallest was 24kW and the biggest 1MW at an Ikea store. The thing is that even if the jets don't appear to do anything other than split the flame they are still functioning as intended. Sometimes you will see a brighter section of flame above and around the jet, showing it is adding needed air as well as turbulence. Also consider how the air paths see to swirl in these stoves, the airwash comes down the glass and hits the burning wood at the floor then runs back across the burning wood and up the back, then forward across the baffle then exits, a near circular motion. Those jets might not find any fuel gas left in the flames but still contribute hot excess air before it ventures up the flue.

Not to mention it tends to be acidic and contains Products of Incomplete Combustion, especially in diesels, and they contain known carcinogens, ref earlier discussions about wearing gloves when working on engines and not putting oily rags or hands in pockets.

This tertiary air, does it come into the firebox preheated and through a horizontal line of small holes at the back? If so this is to prevent the fire being starved of air and avoid smouldering logs being left, it ensures enough air to maintain a flame when the fire is low. I take it this is a multifuel stove? Generally dry wood does not need primary air after it is started and flaming, if at all. It's smokeless fuels that need primary air to gasify the coke to produce carbon monoxide that then burns as a flame in the secondary air. Is there a way to shut the primary air and prevent secondary air getting under any grate? If not let a bed of ash fall through and do the job. That's it, it has to do with mass flow, to burn a kilo of dry wood requires ~5m3, which is about 7kg, of air. The energy in the wood has to be released by oxidising it and that energy has to raise the temperature in the firebox. Adding more air to a cold fire means the firebox is constantly being cooled. Excess air and wood moisture are bad dampeners to a fire. With the fire burning what do the jets of air out of the small holes at the back look like?

yes transit, pulled on the M25 and weighed off and held at leatherhead weigh station

They were sold as weighlode, basically you put a known weight in the tipper and lifted the bed slightly to a known position, you then read the pressure and referred to whatever calibration table you came up with, I don't think they are in business now but they were primarily for grain trailers. When I was concerned about our guys returning overweight, because we had an issue getting the yard passed as an operating centre, I looked at single wheel weighers, basically an aluminium plate with a stress cell which you drove over slowly, they cost about 1500 quid but the boss just didn't want to know. After I was put out to grass one guy was stopped in a transit grossing just over 6 tonne. I thought up to 15% over was a smack on the wrist and a fine, over that it is a construction and use offence, points and a fine.

I thought Georgie had the blue flames

I think this bluish orange is the area to aim for. As you say if you put a dry bit of softwood on it rapidly evolves offgas ( the results of heating the wood is pyrolysis which means splitting the wood components by heat). This offgas then burns in what is known as a diffuse flame, the oxygen enters the fuel rich gas from the outside, the oxygen then further splits away the hydrogen and burns as a flame but leaves the carbon particles glowing yellow in the flame until enough more oxygen diffuses into the flame and oxidises this carbon. This is where a jet of hot air aids turbulence. If enough oxygen cannot pass into the flame before it cools down (mostly by radiatingto a cool surface) the carbon particles reform to a mixture of sooty particles, some of the carbon atoms reform in the heat to tiny plates of graphene, a single layer of graphite, graphite resists oxidation so once formed these sooty particles tend to carry over into the flue. This is why it is important to keep the combustion chamber hot and with enough residence time for the flame to be able to burn out. My take on this by observing the glass window on my little Morso II, is that you really need to see all the flame within the box to cut soot. Even so I have noticed, as the firebox is small, if I put a dry piece of wood on top of hot coals the sudden evolution of offgas overwhelms the ability of the downwash secondary air and the excess air holes half way up the back of the firebox and I can see sooty smoke. This happens with birch and holly for some reason, of course we know birch has an oily bark but holly? The only way to avoid these yellow flames going up the flue and being quenched is to cut the logs smaller, and not to load above the level of the excess air holes, so less offgas is suddenly evolved and there is adequate air to burn it.. That is a bit of a challenge to me. The main thing is to keep the combustion hot enough with adequate air to burn the tars before they get the chance to enter the flue. Wood moisture is the biggest culprit for lowering the temperature in a modern insulated firebox.

MOT type one is a size distribution/assortment. Round here it tends to be mendip limestone and as it is compacted it crushes down to fill the voids nicely, then you put a wear course on top. If you omit the wear course the traffic crushes it further and the rain washes out the fines. Tarmac planings tend to be 10% bitumen, 40% stone (often limestone here) and 50% sand. Once the bitumen degrades the sand tends to wash out. ECO type one seems to have a mixture of crushed concrete, brick and pebbles and seems to hold up better.

It looks like good old fashioned keynsian economics, couple this with the decision to go ahead with HS2, renewable energy etc.and devaluation of the pound post the referendum the government will spend its way out of depression. Just let's hope UK Ltd. can pick up the baton and run with it without dropping it to China Tech or Trumptown.

I thought that was for clay sites? The Plaisance I drove had been used for road crushing before I got to drive it and I was told this included incorporating lime AND/OR OPC

Talk about thread drift. Anyway your post made me search again and quickly came up with this: "The Far East was where the Mosquito suffered its most difficult losses – not due to the enemy, but to the degradation of the early version of their glued wooden joints (using casein glue in an unsuitable climate) leading to structural failure – sometimes in the air. Early production aircraft which were in India and Burma were condemned on inspection, but later examples in which formaldehyde-based glue rather than the milk-protein based casein were used, were passed as fit to fly." The Wooden Wonder – The Mosquito WWW.TRIUMPHWORKS.CO.UK After its first flight on the 25th November, 1940, the de Havilland DH.98 Mosquito was immediately adopted as a... Which is much what my father said, though I had wrongly ascribed the glue failure to bugs or fungi rather than heat and moisture. He fitted radar to them in 44-45, he had not realised that the tide of war had gone in allied favour when he was sent out, he didn't get back till 46.

We were advised to do this, for cutting wildfire charred trees, and soak them in oil first, a special oil used by dirt bikes was suggested. I tried it briefly but the mills didn't want the timber so we put a Cat 977 and powerfork through the lot and burnt it.

My dad implied it was bugs eating the glue that was the problem rather than boring insects so they changed it to a non casein based glue. I never did find reference to this when I searched for details of their use in Burma.

I've a pretty fair idea Oi, I didn't think we had met.