60 mph I get about 1000 fpm measured using a watch and the altimeter. At
70 mph it descends slightly faster vertically and I figure its a wash
for speed vs distance under no wind conditions. For engine out purposes,
I use 1 mile per minute and 1000 fpm which works out to 5:1 for
practical purposes. My 172M was 7:1 but I never did measure it so am a
bit skeptical of that at this stage. It doesn't give you a lot of time
or distance before you are on the ground but in practice, neither do the
certified aircraft.
Wayne used FOKM on grass with the amphibs for 4 years. I will look at
the floats and see if I can spot anything.
Garry
On Thu, 2006-09-28 at 11:34 -0400, Ken wrote:
Hi Drew
"some" airplanes not the Rebel ;) Yes this thing comes down pretty steep.
If my VSI is accurate, I get about 8 or 900 fpm at 60 knots which is
about a 7:1 glide ratio. Barely over a mile glide from 1,000 ft with no
wind once I'm back to 60 kts. It sure doesn't seem like much but small
Cessna's are also only about 8:1 glide ratio aren't they ??? It is nice
to be going so slow if you do have to put it in a field though.
Cecil was saying that he has MAM researching slightly thicker amphib
nose gear legs due to a couple of incidents he's seen of bent/ broken
legs where the bolt goes sideways through the 5/8" thick leg. Apparently
the legs are high strength 7075 aluminum. I am beginning to think that
it is not the best idea to operate the amphibs on grass strips!
Ken
Drew Dalgleish wrote:
Hi Ken I don't think you should ever use the term significant glide whenI had some fun and expanded the flight testing a bit this morning. A
windmilling 3 blade Warp prop seems to be a fair bit of drag at cruise
speed on 119R as expected, but at 60 knots there is surprisingly little
difference in descent rate between slow idle (600 prop rpm with closed
throttle) and a stopped prop. Some airplanes glide significantly farther
with a stopped prop but apparently mine is not one of them.
Ken
refering to any rebel :)
Drew
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