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Viewing 15 posts - 46 through 60 (of 321 total)
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  • in reply to: U / C Ram identification – please #805429
    minimans
    Participant

    Looks a lot like the bucket ram on on an old Massy Ferguson tractor to me?

    in reply to: Part I.d needed – possibly B-17 #815187
    minimans
    Participant

    Looks more like an oil strainer to me? The hole would be where the pickup pipe goes.

    in reply to: Spitfire wing bolt observation #824843
    minimans
    Participant

    Bad choice of words on my part, since there is no friction involved at the joint on the ground or in flight! I guess what I was trying to say is the load is taken by the reamed pins, the nut’s are purely there to stop the pins falling out? they would appear not to have a clamping load on the spar carry through? unless there was a method of shimming the shoulder to a set depth through the spar carry through? I’m not a designer I’ll grant you, just a mechanic trying to understand the designers method. Something we mechanics have been doing since designers started designing! It usually starts with “Why the F did they do that”!

    in reply to: Spitfire wing bolt observation #824966
    minimans
    Participant

    I think we are all overthinking this? These are not bolts in the excepted term, they are shoulder bolts. Think of it as a retained pin rather than bolt. That’s why they are a reamed fit, It’s the friction of the pin/spar interface that transmit’s the load, not the clamping of the “bolt” I seem to recall that when the Spitfire arrived in India there were a number of failures of the spar joint due to incorrect reaming when the wings were reattached after shipment? The nuts were tight but the pins not?

    in reply to: More Hurricanes than Spitfires, but why? #829590
    minimans
    Participant

    Begs the question, If we hadn’t had the Spitfire could the Hurricane have been developed into a fighter capable of fighting off the various developments of German fighter throughout the war? After all, development of the Hurricane seems to have been stopped after the spitfire came along and proved to be more capable?

    in reply to: World Piston Engined Speed Record Attempt #838644
    minimans
    Participant

    So where’s the “live” coverage that was promised I can’t find it on Facebook or the company site?

    in reply to: World Piston Engined Speed Record Attempt #839173
    minimans
    Participant

    Holy sh*t batman…………

    minimans
    Participant

    I’m a bit unclear on the concept here? The Red Arrows flew a display but not the Typhoon? So do the Red Arrows fly the same pattern? can’t quite grasp that it’s safe for several aircraft in close proximity to each other to be safer than a solo jet?

    in reply to: Jay Leno's Merlin engines. #772330
    minimans
    Participant

    Back in the 70’s when working for Jack Barclay’s the Rolls-Royce dealer I had to try and fix “the beast” as it had broken down outside the works in Battersea, after cleaning out the inlet filter on the fuel intake of the single puny looking single four barrel Carb. the only way we could get it started was for me to cover the carb intake with my hands and crank it over! when it fired it almost sucked my hand in with it and the noise was so bad/loud I almost needed clean underwear…………I remember that the valve gear made more noise than the exhaust and that it ran like a bucket of bolts. It eventually had to leave on the back of a low loader as it was due at court for an inspection for the Radiator shell copyright infringement. But for a young lad it was a most memorable experience.

    minimans
    Participant

    I think perhaps the reference to an ammunition shortage referred to the small capacity of the guns on the plane itself?

    in reply to: Miss Velma P51 Landed in cornfield at Flying Legends #796860
    minimans
    Participant

    Not much chance of a go-around with no oil pressure I would have thought? Must be another reason for it being set that way? most probably due to if it fails it fails in the safer option?

    in reply to: Prop rotation direction #801835
    minimans
    Participant

    From the Heritage trust book The Merlin 100 Series ( A very good read I might add as is The Merlin in perspective). The Merlin 131 reverse rotation reduction gears.

    in reply to: Duxford Diary (2017) #801992
    minimans
    Participant

    Berlin express is absolutely beautiful, but Oh those whitewalls!

    in reply to: Prop rotation direction #802177
    minimans
    Participant

    As general rule yes, but there are some Merlin’s that were opposite rotation from normal, however this was achieved with an idler gear in the reduction gears, the engine itself still rotated in the “normal” direction.

    minimans
    Participant

    Is the material strong enough to drill and tap threads or will you have to use inserts of some sort? Although expensive this is a very cool way of building what is fast becoming unobtainable!

Viewing 15 posts - 46 through 60 (of 321 total)