Today's Message Index:
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1. 10:52 AM - RV4 Flap/Speed Brake (Gene Smith)
2. 03:12 PM - Re: RV4 Flap/Speed Brake (Lee Logan)
3. 07:26 PM - Re: RV4 Flap/Speed Brake (Steve Schlieper)
Message 1
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| Subject: | RV4 Flap/Speed Brake |
Hey gang.............Educate me, and discuss this situation I would like
to do to my RV-4...I would like to fly a normal Fighter Pilot traffic
pattern, but my fixed pitch prop still provides some thrust even at
idle, so I have to be almost out of sight on final to ever get it to
slow down...To install a speed brake somewhere is too much for me, (and
where?) sooooooo how about this: Modify my flap system to allow the
flaps to go down to 90 degrees so I can get the proper airspeed on final
and still be able to see the airpatch...LET ME HEAR FROM YOU...Be kind!
CHEERS,
Gene Smith
RV-4 flying 13 years
Message 2
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| Subject: | Re: RV4 Flap/Speed Brake |
Gene: Fly your normal "fighter" pattern: High, tight, and coming down
steeply all the way *by slipping it in*. Is easily controlled and looks way
cool too. Watch Patty Wagstaff or any of the other Extra/CAP/Edge etc.
pilots landing and you'll know just what I mean (they do some
*serious*slipping). You can slip an RV-4 big time and it will come
down quickly and
under complete control. I turn off the 180 just past my intended touchdown
point and slip it all the way to the ground, commonly from 700' - 800' AGL
but close aboard, beginning if necessary, right off the 180. I figure if I
ever lose the engine, I just ease off the top rudder, level the wings a bit
and enjoy (hopefully) enough leftover energy to readily make the runway
engine out... If I lose it high enough (you might want to experiment on
this with a good engine), I plan to raise the flaps slowly giving up
altitude at first but ultimately extending my glide ratio. If too low to
take the initial flaps up altitude loss, just fly on with what you have,
slow it to right above stall to lower your total energy package and then no
matter what, fly it all the way to the ground.
That's my plan, anyway...Hey! At least I have one!!
Ciao!
Shiloh...
Message 3
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| Subject: | Re: RV4 Flap/Speed Brake |
Gene,
Wouldn't change a thing except for me--changing my manual lever for the
electric kit---would be an improvement. I HATE that damned manual flap
lever. A speed brake or 90 degrees of flap seems excessive. I would
think that swapping to a constant speed set up would be the preferable
solution. Slowing the RV4 down is certainly a trick. I start well
before the "standard" a-beam the numbers approach and pull the throttle
back to about 1100 rpm (0-360, fixed pitch), dump all the flaps at once
at 100 mph and hit a somewhat shorter turn to base then final. I use a
touch of throttle to adjust descent rate and I am usually successful in
crossing the fence between 65 and 70 without having to fly a long and
risky final. It took me a while to get it right. My goal is a constant
speed set up sometime in the future.
D. Steven Schlieper
8 Homeplace
Topsham, Maine 04086
----- Original Message -----
From: Gene Smith
To: rv4-list@matronics.com
Sent: Tuesday, October 02, 2007 1:51 PM
Subject: RV4-List: RV4 Flap/Speed Brake
Hey gang.............Educate me, and discuss this situation I would
like to do to my RV-4...I would like to fly a normal Fighter Pilot
traffic pattern, but my fixed pitch prop still provides some thrust even
at idle, so I have to be almost out of sight on final to ever get it to
slow down...To install a speed brake somewhere is too much for me, (and
where?) sooooooo how about this: Modify my flap system to allow the
flaps to go down to 90 degrees so I can get the proper airspeed on final
and still be able to see the airpatch...LET ME HEAR FROM YOU...Be kind!
CHEERS,
Gene Smith
RV-4 flying 13 years
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