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  1. Replies
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    Sorry that though I am interested & usually enjoy...

    Sorry that though I am interested & usually enjoy it & do fly in, before this week-end I'm off across the Channel for a few days.

    mike hallam
  2. Thread: Prop needed

    by mikehallam
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    186

    Well OP, you're obviously not following up from...

    Well OP, you're obviously not following up from the first request for an Arplast. I've now ckecked the one I could sell.
    It's signed Arplast with 3 blades radius of blade 0.82 m = 1.64 approx....
  3. Thread: Prop needed

    by mikehallam
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    5
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    186

    I might have one in the hangar, three blades,...

    I might have one in the hangar, three blades, ground adjustable with Ali hub. I'll be down Jackrells Farm (Sussex) strip on Monday if it's of interest.

    mike hallam. -- My email is in Pooleys and...
  4. Thread: Prop pitch

    by mikehallam
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    554

    Cheapest option is run the donk a 100 or so rpm...

    Cheapest option is run the donk a 100 or so rpm faster. Then you retain the stol as now and for the cost of a very little more fuel can experience a slightly faster flight without changing anything. ...
  5. New Unused round 'proper' RPM Indicator for points Rotax 447.

    This gauge has never been used & still in box;it has three leads, +12v, pulse source and Earth. I no longer own a Rotax 447 a/c.

    It's for sale at 30 plus postage.

    mike hallam e-mail ...
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    "Velly interesting ! " I think we four stroke...

    "Velly interesting ! "

    I think we four stroke flyers had better bow out of this zone as there's virtually no correlation between out sleek speedsters and your draggy bundles of plastic & cotton.
    ...
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    Martin, I no longer have the 447 or the Rotax...

    Martin,

    I no longer have the 447 or the Rotax manual, but in my 4-stroke book (and its pdf is available above in one of Joan's attachments) they give several curves, WOT power but also the...
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    Well Joan, You've introduced me to a thought...

    Well Joan,

    You've introduced me to a thought provoking real life subject which I've enjoyed.

    For my relatively short excursions of 3/4 to 3 hours duration I think I've now learnt that slow...
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    FWIW. Today I looked up my own a/c consumption...

    FWIW.

    Today I looked up my own a/c consumption records of speed, RPM & MPG data taken over 7 years, below are my best actuals:-

    Sorry they're not for the idiosyncratic 2-stroke, but an 80 hp...
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    What's the vertical scale pls ?

    What's the vertical scale pls ?
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    Just for fun & from poor memory I did some rough...

    Just for fun & from poor memory I did some rough calc's for the Rans miles per litre at headwinds from 0 to 30 in 10 mph steps.
    Clearly at higher winds unless you crack on you stand still and mpg...
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    Sounds like one needs to do a mpg curve for your...

    Sounds like one needs to do a mpg curve for your chose flying machine in 'still air' at several speeds within its normal operating range, and another for miles covered per hour at these speeds...
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    I must agree about the SSDR attraction. ...

    I must agree about the SSDR attraction.

    Admittedly it needs good wx, but always promises a fun day's aviating with something to see of interest & at an easy distance for my non SDR & non...
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    I'm sorry to read that Mick, are you that ill...

    I'm sorry to read that Mick, are you that ill then ?

    mike hallam
  15. Thread: CFS Rotax.

    by mikehallam
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    AFIR Recently Ecclestone were subsumed into CFS -...

    AFIR Recently Ecclestone were subsumed into CFS - but just checking CFS' advert in the Dec. LAA magazine and Ecclestone is listed as an approved Support Centre together with Air-Masters.

    Outside...
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    [QUOTE=tomshep;128925]I had decided Rotax's...

    [QUOTE=tomshep;128925]I had decided
    Rotax's 447 is an engine that I have never been able to start consistently well but today I tried throttle shut, one squirt of the primer, one compression...
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    I'm a bit late commenting. As a returnee...

    I'm a bit late commenting.

    As a returnee watching the newly refurbished Forum I appreciate its renaissance but am concerned at the high cost to all for so very few contributors - though there may...
  18. Threat of further reduction in number of Customs airfields in France

    Here's something you can all do, send off to this email petition seen referred to on the LAA forum.
    ...
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    Airspace around Farnborough

    I and several 'Southern Flyers' in Sussex have just sent off their e-mailed comments. It's not difficult just explain the bits you don't like.

    e.g. Loss of the N/S gap near Bagshot mast between...
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    True Speed & permissable RPM ?

    Excellent logic Paul, thanks,

    Went to the LAA AGM Saturday last, murky down south with some dodgy flying to abort for an hour or so till sufficient gaps allowed Sussex to Northampton to be done...
  21. Thread: Rans stats?

    by mikehallam
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    757

    Rans stats?

    FWIW the four stroke Road 912 cruises at 5,000 or 5,2000 rpm.
    The 447 in the S4 ran at 5,600 to 5,800 'all day' !

    So for the '582' it sounds about right.

    mike hallam
  22. Changes to the Self Declaration Medical system - 25 August 2016

    Tony,

    The CAA acknowledgement you got normally has the form returned as a pdf.
    With my Windows !0, and Mozilla it takes a bit of searching to find where the p.c. has located it, but it should...
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    True Speed & permissable RPM ?

    Thanks Roger,

    I see that the EuroFox ~= the Eurostar performance at a decent cruise, ditto fuel consumption.
    And you've kindly confirmed they're GPS cross checked and not a poor static location,...
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    True Speed & permissable RPM ?

    Having spent a few days in France, Blois & beyond in my Rans S6-116 the economical cruise of approx 95 mph is slow for long steps. Three hours was a long time against a mild headwind from Chauvigny...
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    Skydrive dual egt gauge wiring

    Paul,

    It shouldn't hurt as the worst is no reading or perhaps reversed readings insofar as the needles want to go down as temperatures rise.

    Black is earth so might not matter anyway. (White...
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