Short field versus Soft field.
Never found the brakes on-full power technique to have any advantage over a rolling start. Not too sure about the no-flap short field technique either. On one field I fly out of it would turn my prop into a hedge trimmer. Rolling start-speed up-drop flap-levitate. Works for me.
The above implies that soft and short field techniques are not taught for ther UK PPL.
Is this true ?
Is this true ?
From AMC-FCL 1.125
Exercise 12 Take-off and climb to downwind position
– pre-take-off checks
– into wind take-off
– safeguarding the nosewheel
– crosswind take-off
– drills during and after take-off
– short take-off and soft field procedure/techniques including performance calculations
– noise abatement procedures
– airmanship
– pre-take-off checks
– into wind take-off
– safeguarding the nosewheel
– crosswind take-off
– drills during and after take-off
– short take-off and soft field procedure/techniques including performance calculations
– noise abatement procedures
– airmanship
Moderator
but unless you operate from a grass aerodrome soft field is not really taught.
Never found the brakes on-full power technique to have any advantage over a rolling start. Not too sure about the no-flap short field technique either.
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When we were operating from a particularily soft field, the key was that you never stopped, otherwise you sank into the mud and that was you knackered.
It is perfectly possible to teach short and soft field technique from a long and paved runway. It isn't perfect, but it is possible to at least teach the basics of the technique, if difficult to actually practise in a meaningful way.
It is perfectly possible to teach short and soft field technique from a long and paved runway. It isn't perfect, but it is possible to at least teach the basics of the technique, if difficult to actually practise in a meaningful way.
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Isn't the point of holding it against the brakes on full power to find out if you are actually getting full power before you start? (How many of us know the max static RPM for the aircraft we fly...?)
Of course you could do that check before your rolling start for the ideal combination.
Tim
Of course you could do that check before your rolling start for the ideal combination.
Tim
Am I recalling correctly that soft (and short) field techniques are very different for different aircraft? eg Robin Dr400 and Cessna150/152/172 etc. Check the manufacturer's recommendations, if they gave any.
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Just slightly changing the subject a bit here. I did my PPL a few years ago and can't remember that I was actually taught short field techniques! Am planning a trip down to the South West during the summer and assuming you have all your calcs correct for t/o, is there a standard allowance you make for all the variables ie. heaviness of ground, length of grass etc. In other words, would you only depart if, when you've done all your calcs you still have a spare, say 100m?
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Taylor,
A review of this report should clarify the combination of elements which should be considered, for operations where runway length is of any concern at all. Accident reports are amazingly good training material!
http://www.aaib.gov.uk/cms_resources...pdf_507894.pdf
A review of this report should clarify the combination of elements which should be considered, for operations where runway length is of any concern at all. Accident reports are amazingly good training material!
http://www.aaib.gov.uk/cms_resources...pdf_507894.pdf
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Have a look at this CAA Safety Sense leaflet: Aeroplane performance.
