[rebel-builders] Stall speeds
Posted: Sun Feb 19, 2012 8:34 pm
Seems high Gary. Have you checked your airspeed against a GPS? Is it
possible that your static port is in a low pressure area? My airspeed
indicator always reads higher than my GPS unless I have a screaming
tailwind. I'm using the MAM pitot/static tube and it doesn't leak.
At 06:22 PM 13/12/2010 -0500, you wrote:
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possible that your static port is in a low pressure area? My airspeed
indicator always reads higher than my GPS unless I have a screaming
tailwind. I'm using the MAM pitot/static tube and it doesn't leak.
At 06:22 PM 13/12/2010 -0500, you wrote:
Drew
I have been doing flight tests on my airplane, followed
by calibration tests on my instruments. I get the following
stall speeds flying with a gross weight of 1550 lbs.
Reflex (6 degrees up) 58 mph
Neutral 55 mph
Flaps (6 degrees down) 54 mph
Flaps (12 degrees down) 53 mph
Flaps (18 degrees down) 51 mph
These are a bit higher than advertised in the Rebel literature
and I was wondering if others had experienced anything like
this. I calibrated the ASI with a water manometer so it should
be pretty accurate. No leaks in the system and one steam gauge
and one GRT EFIS which read 1 mph apart - steam lower.
Murphy advertises
Stall (No Flap) Power Off (mph) 44
Stall (FULL FLAP) Power On (mph) 40
The second thing that I would like a comment or two on as to
how much of a decrease in stall speed that one actually
experienced with vortex generators. Significant??
The third thing I was wondering if anyone out there is flying
with a Lift Reserve Indicator. What is your actual experience.
If anyone would like to read about LRI's, the following
web sites may be of interest.
Flying with a Lift Reserve Indicator
http://home.hiwaay.net/~sbuc/journal/li ... ve-pg2.htm
Place to buy an economical kit.
http://sites.google.com/site/lrikit/
Thanking you in advance for your responses. PS I like to
fly slow and sight see.
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