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openspaceman

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Everything posted by openspaceman

  1. openspaceman
    I'm impressed. Is that a Moore you are suatting on?
  2. openspaceman
    I'm not sure when alder first sets seed but if it has little cones before you re coppice it then it will seed into the spaces between the stools of your little carr. I'd leave it for at least 15 years and in 1985 I cut over an area that was last harvested for charcoal for gunpowder in WW2. Even then we could see the wire rope scars from the previous session in WW1 on beech trees on top of the bog. The estate also had records of spaghnum being gathered for wound dressings from it. It also layers well if you leave a few sunshoots and peg them between the stools. And clogs plus as has been said it is very underrated as firewood
  3. openspaceman
    Far be it for me to comment on pathology but: This is typical of many infections and AOD has many causes, probably in unison So the tree is reacting to the problem and making new growth where it can The microbes attacking the tree structure are producing this black liquid as a byproduct of metabolism, there is a pressure build up and it has to go somewhere You probably have cause and effect the wrong way around, the grazing pressure weakened the trees and microbugs took advantage. One does not need a felling licence to remove dead trees, evenso this is only removing the symptoms and extremely unlikely to affect the spread of any pathogenic agents. If it's a production forest then fell and replant with a suitable different species, else wait and see.
  4. openspaceman
    Ring barking by squirrel? Difficult to tell without a picture but that's what explains most of the mosaic of brown in sycamore hedgerow trees in SE England.
  5. openspaceman
    I used to use a shraeder device that worked off the spark plug for emergencies, pto pump otherwise. It was a one way valve that on tick over sucked air in via the body preferentially as the inlet manifold had higher depression and then pumped it into a standard air line. We never had any problems from using it but it was a bit pedestrian.
  6. openspaceman
    That's an oldie, it had a wire edge to stop the saw. Worked off the same port that the decompressor fitted to later 262s and worked off cylinder over pressure. Never did manage to use one.
  7. openspaceman
    I think you'll have to use an agent, Charles Dunn at Shredco will be the one for Slough H&P by you or get on someone elses quota. There is a temporary shortage at present as Hyde Park took a lot of woodchip.
  8. openspaceman
    Never been a horse logger, I just went in with the Holders when the show was finished ;-). Never had to put a Holder down either. I would have been happy to do a bit with the kids' shetlands or the later highlands but wouldn't give a section Acob much chance of not damaging itself.
  9. openspaceman
    This must depend on your market, in general a power station will not pay a premium for dryer woodchip as long as it appears to be less than 45% mc wwb. If you are supplying a good spec like G30 W30 to a private client then yes keep it dry, Even better is you actually meet the spec by screening and get paid by the heat meter but I have yet to see a supplier that agrees to this, mind I'm 4 years out of date now.
  10. openspaceman
    Agreed a 350lwb with steel tipper (as favoured by itinerant tarmac layers) will have a kerbweight of 2300kg add 300kg of two blokes and kit and you can only carry 900kg at best and remember the nose weight of the chipper. Mind from the numbers I see loaded on the road no one pays much attention.
  11. openspaceman
    Certainly the tree picture looks like manna ash in autumn and the twigs look like ash but the lack of terminal bud is a bit confusing. I'm not familiar with the pagoda tree but isn't that a legume? The ash flowers would be obvious but as they tend to be on the top of the crown the leaves could hide them. The sweet smelling leaf is an indicator too but the leaflets are slightly staggered and I'd have to pop out and check this against a line of trees on one of our local greens.
  12. openspaceman
    ...but 3000 ft ascent in green wellies!
  13. openspaceman
    That's how I read it, us oldies will no longer be able to tow trailers over 3.5 tonne, not that I ever have bar perhaps a bit of overloading. I guess it's aimed at the under 7.5 tonne articulated units mostly. Or have we misread the specifics?
  14. openspaceman
    I've had a quick google and now see that ichneuman's parasitise the grubs that the wood wasp lays, I was referring to a woodwasp, sawfly or horntail (harmless), trying to lay an egg in the driver's thigh.
  15. openspaceman
    That's the same as other wasps and bees then. It makes sense as the sting of a wasp is a modified ovipositor. We had a lad driving the skidder and stacking douglas fir, he had one settle on his resin soaked thigh and start drilling through his jeans whilst driving, he brushed it off but he didn't say he was stung. They're fascinating to watch as the arch their middles to make room for the ovipositor and then drill 20mm to lay their eggs.
  16. openspaceman
    It's hard to say but for a first approximation and ignoring the effect of ejecting hot air from the house and heat gain from the chimney then the open fire is limited to getting heat into the room by radiation, say 20% of the heat energy of the combustion. The best you can expect from a stove burning dry wood is probably 70%. Burning wet wood would impact on both methods so I don't thing the ratio would change much. In broad terms with the 5kWhr(thermal) available per kg of dry wood perfectly combusted the highest temperature achievable is 1600C in the flame before any heat is lost to the surrounding. This heat is distributed to the whole massflow, double the massflow by adding extra air and the temperature is roughly inversely in proportion. So for a given temperature up the flue if you double the massflow you double the energy lost.
  17. openspaceman
    No, I wasn't being at all prescriptive just pointing out that your comments that the bricks were warming up and increasing efficiency of the fire was wrong. I like a good blaze in and open fire and if the wood is free...
  18. openspaceman
    I thought I replied to this earlier but apparently it didn't send. Warming bricks or stone by a fast hot burn and then allowing the heat to seep out over time is the principle of a masonry stove but they do control combustion air. Alycidon is right, an open fire loses a lot of heat up the chimney in warming excess air, the chimney still needs to be hot at the top to avoid fouling so dumping more flue gases than necessary at this temperature robs heat from the building. Indeed if the building is warm ( say a fire in one room and central heating elsewhere) the open fire can eject more heat up the chimney than the small amount of heat it emits by radiation or heating the brickwork. This of course still happens once the fire is out and the flue still warm.
  19. openspaceman
    So if the Gross Combination Weight exceeds 14,230kg and the tractor is less than a quarter of this weight the brakes must operate from the tractor service brake. Event then the weight the trailer imposes on the tractor must not exceed a maximum of 14.230*.35= about 5 tonnes. I got my date wrong in an earlier post when I said 1986 Not at all, it says if it exceeds 14230 then the brakes must operate when the service brake is used. Next it says the brakes must be efficient ( and this covers trail;ers exceeding 750kg) and must operate on 1/2 of the wheels and the parking brake on 2 wheels. which is why I suggested adding brakes to the fornt pair of axles. Yes It means when you push the brake pedal of the tractor it must operate the brakes on the trailer proportionally to the braking of the tractor as opposed to the driver operating a separate lever for the trailer brakes.
  20. openspaceman
    Hibernaculum?
  21. openspaceman
    I worked for an IH dealer in ~76 when they first came out with q cabs. The fitter then said the immersed disc brakes were paper lined, I never did see any stripped out but they were a b*****r if you had them on independent and tried to press them both instead of the centre pedal, straight to the floor.
  22. openspaceman
    If you;re prepared to tart it up a bit I can let my wife's go. It only holds some old tools and such. PM me and I'll take a picture.
  23. openspaceman
    Yes that's how I see it. If the tractor is pre 1986 I think you can still use separately controlled brakes, later than that and I think they need to be connected to the service break. I used a spring loaded ram on the county trailer that applied the brakes if the coupling broke. There is an exception for towing unbraked harvesting equipment, which was the argument I was going to use when traveling empty between sites. Looking at the OPs trailer it's similar to my moheda and I think you could cut the front stub axles off and replace with a braked version coupled to a ram.
  24. openspaceman
    There's no problem doing as you suggest with the logs providing air passages. You can fill a pan with chip and then light a log fire on top of it. With the Jotul type stove that burns from front to back, like a cigar, you can stack chips at the back and light a log fire at the front. The problems occur when you put a lot of chip in and it all tries to burn at once, assuming you haven't smothered the fire first. You simply cannot get enough air in. A centrifugal fan from a laptop is good for livening things up. An old virtual friend, Alex English in Canada, has devised a wedge shaped burner for woodchip that fits between the stove and door. It is an adaption of a combined updraught and downdraught gasifier invented by Aqua Das, known as a Dasifier. I still prefer a vortex type air curtain device for clean burning but you do require a fan for this.
  25. openspaceman
    I should have parts book and engine manual for A55 but not a55f, it will take some searching so pm me if Lamberhurst cannot help.

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