Bizarre comments in Pilot magazine flight tests
Adding to the last message here :
The Rans S6 is a whole range of aircraft, with light and not quite so light engines two & four stroke.
They all affect the MAUW in the UK and thus IAs for stall.
Just as a wobbler, the shorter wing S6-116 version stalls clean at just under 50 mph IAS. With various stages of flap down to 44 and with a fair bit of power and full flap perhaps 40 - but I never tried that aloft.
For short take off full power, full flap gets you off the mud at an alarmingly low 40 ish if you have an eye to spare for the ASI whilst doing all the other take-off stuff ! That's ground effect so get more speed before attempting to climb away !
By contrast the tiny S4 stalls clean at some 37/38 IAS and with power could be usually brought in at 44/45 IAS. Take off was ridiculously slow somewhere in the mid 20's but then the 'plane totally uncontrollable so best to hold it on the deck till a healthier 30 plus in ground effect
mike hallam p.s. take all my statements as non definitive and just an opinion.
The Rans S6 is a whole range of aircraft, with light and not quite so light engines two & four stroke.
They all affect the MAUW in the UK and thus IAs for stall.
Just as a wobbler, the shorter wing S6-116 version stalls clean at just under 50 mph IAS. With various stages of flap down to 44 and with a fair bit of power and full flap perhaps 40 - but I never tried that aloft.
For short take off full power, full flap gets you off the mud at an alarmingly low 40 ish if you have an eye to spare for the ASI whilst doing all the other take-off stuff ! That's ground effect so get more speed before attempting to climb away !
By contrast the tiny S4 stalls clean at some 37/38 IAS and with power could be usually brought in at 44/45 IAS. Take off was ridiculously slow somewhere in the mid 20's but then the 'plane totally uncontrollable so best to hold it on the deck till a healthier 30 plus in ground effect
mike hallam p.s. take all my statements as non definitive and just an opinion.
Thread Starter
Let me clarify.
What I thought was bizarre, was the use of a slightly obscure, British colloquialism instead of an informed comment as to why the author thought that using 1.3 Vso as Vref was not a good idea.
What I thought was bizarre, was the use of a slightly obscure, British colloquialism instead of an informed comment as to why the author thought that using 1.3 Vso as Vref was not a good idea.
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In which case let me repeat - its not slightly obscure, its widely used and understood.
(If it really is the first time you've come across it, then you've learnt something that you can impress your drinking buddies with. BTW its tears as in crying, not tears as in rents in fabric - though for some aircraft either meaning would work, which is cool isn't it?
)
(If it really is the first time you've come across it, then you've learnt something that you can impress your drinking buddies with. BTW its tears as in crying, not tears as in rents in fabric - though for some aircraft either meaning would work, which is cool isn't it?
)
Thread Starter
Heston,
You are right, my use of "slightly obscure" was inappropriate. I was fully aware of what the phrase meant, having grown up in England. I still think it was inappropriate to use it without explanation, in a flight test article.
Interestingly, here in "the colonies", one person I discussed it with, thought the phrase could possibly refer to tears of joy!
I'll now have to tear off to the pub and try to impress my buddies with my erudition, although knowing them, it's a lost cause!
You are right, my use of "slightly obscure" was inappropriate. I was fully aware of what the phrase meant, having grown up in England. I still think it was inappropriate to use it without explanation, in a flight test article.
Interestingly, here in "the colonies", one person I discussed it with, thought the phrase could possibly refer to tears of joy!
I'll now have to tear off to the pub and try to impress my buddies with my erudition, although knowing them, it's a lost cause!
