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glide path

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tc1917(at)bellsouth.net
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Posted: Mon Oct 01, 2012 3:10 am Post subject: glide path

I tend to agree with Mr. Hauck on glide path.  I have been in emergency 

landings six times with broken props, plugs gone bad,

totally seized engine, holes in pistons, etc.  I will tell all of you that 

with any of the landings on the five different types of craft I

was flying at the time, you have no time nor inclination to determine an 

actual glide path ratio.  You are concerned with where

you can go and what type of LZ it will be.  Most of my planes were pretty 

good at gliding.  My Slingshot is not.  It is the worse

glider in the world second only to a rock.  When it happens, and most will 

have it happen, get your nose down and concentrate

first on flying the plane.  Keep your airspeed up.  Once you get control 

over your 'glide' you can  pick your LZ.  I always

practiced where I can go from various heights and speeds.  ALWAYS consider 

once you enter the final stage, twenty feet or so

you will need a little extra speed for control on sitting down..  The 

slingshot is different with its weight and short wings.  I only

did it once but it was perfect.  Nose down, get best control speed to make 

the LZ and concentrate on your rotation and flare.

Full flapperons and about sixty mph made it great.  Had to land almost under 

myself.  I found that there is a spot on your rpms that

will produce almost a dead stick with the prop not dragging and not pushing 

either.  It is just above the idle range.  If you practice

it, you can feel it.  If and when you go dead stick, if you are thinking 

about what is happening, you can feel actually gaining speed when

you push the nose down.  You can sense it.  Use that same feeling and 

feather your engine down to just above idle and it is

pretty much the same.  I hope I helped the newbee that has never had the 

privilege of dead stick landings.  It is only scary if you

have never done it.  Dont fret, worry or panic until after you stop rolling! 

p.s. dead sticks in a firestar are non-events.  Ted Cowan

Slingshot, 912UL zoom zoom



On another note.  I have always pretty much cruised at around 80 to 85 mph 

(at)4800 rpms with my 912.  I wanted to fly faster so

I kicked it up to 5000/5200 rpm and around 95 mph or so.  I was surprised to 

find it ran smoother at that rpm than slower.  I now

believe what they are saying about the engine being designed and balanced 

for that speed.  I have not checked my gas burn rate

but I am sure it is worse than the 3 gals an hour I get at 85 mph.  Am I 

correct in my beliefs that 5200 rpm is a better cruise speed

than 4700/4800 rpm?  Let me know.  Ted

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nationcap(at)comcast.net
Guest

Posted: Mon Oct 01, 2012 6:25 pm Post subject: glide path

My *Dad always said there are only three things you need to be concerned with when flying, Aviate, Navigate,  and Communicate, in that order. 

*20 years flying with the Air Force, B-25s in Korea, 3 tours in Viet Nam flying B-57s so I'm pretty sure he knew something about flying.



Brad

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