Today's Message Index:
----------------------
1. 05:59 AM - Re: Wanted: RV4/Rocket HS and elevator..........and SPEED!!!! (ACTIVE NZ - Andrew)
2. 06:13 AM - elevators (Frazier, Vincent A)
3. 06:21 AM - Re: Wanted: RV4/Rocket HS and elevator..........and SPEED!!!! (Smoky Ray)
4. 09:06 AM - Re: elevators (Im7shannon@aol.com)
5. 10:03 AM - Re: elevators (Michael W Stewart)
6. 09:03 PM - Re: elevators (lesdrag@aol.com)
7. 09:03 PM - Re: elevators (lesdrag@aol.com)
Message 1
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| Subject: | Wanted: RV4/Rocket HS and elevator..........and SPEED!!!! |
Um. Clearly Smokey got in first, but if he's not interested, I might be.
I've long been a little concerned about the tail on my Rocket. Hard to
keep the thing below VA or VNO, in turbulence, when she's so FAST :)
Incidentally, Tom's post has me thinking. I'm not sure how his Rocket is
only good for 170 knots, but I'm presume there's a good reason. I've
always thought mine was a tad slower than the numbers I've been reading
- when people ask me how fast I cruise, I tell them, being
pathologically honest, I cruise at 199 knots TAS. I've read about
Rockets that cruise a lot faster than that...210 knots seems to be a
common figure. I can't get more than 200 knots TAS under any
circumstances, maybe 205 at sea level, 2700 RPM, WOT and full rich,
which is an expensive way to get another 5 knots. I've got a Lycon IO540
C4B5, slightly tweaked to produce 280 hp, and a light (VFR) airframe.
Anyone got any thoughts on how to get another 10 knots out of her?
I HAVE noted one thing which makes me wonder. At any sort of cruise,
there seems to be quite significant forward elevator. The front part of
the elevator (the horn?) seems to be an inch or so above the front of
the HS. If I was to tweak the incidence of my HS somehow, to get to a
point that the elevator is neutral at high speed cruise, would that
likely make her a little faster? I have two aerials, but otherwise a
clean airframe. Anyone got any ideas on getting a little more speed?
Feel free to email me offlist, andrew at active new zealand dot com.
(Anti spam version - u guys can figure it out :)
Also, GREAT to see the outputs from the OSH safety seminar. Lots of food
for thought. Thanks very much, everyone who contributed...
Andrew
PS standing invite to New Zealand for Rocketeers is always there. Best
Rocket flying in the world is down here in little old New Zealand, I
reckon, if you'll excuse the parochialism. As you guys head into winter,
if you're keen on a cool holiday and some kick-ass flying, well, you're
talking to the right guy! Google Active New Zealand, or add a dot com at
the end, and check out the sort of stuff we get up to down here in NZ.
The hiking's great....but the flying's sublime!!!
-----Original Message-----
From: owner-rocket-list-server@matronics.com
[mailto:owner-rocket-list-server@matronics.com] On Behalf Of Richard
Lundin
Sent: Tuesday, September 09, 2008 1:01 PM
Subject: Re: Rocket-List: Wanted: RV4/Rocket HS and elevator...
If your interested in an RV 8 tail let me know.
Best regards,
Rick Lundin
--- On Mon, 9/8/08, Smoky Ray <smokyray@rocketmail.com> wrote:
> From: Smoky Ray <smokyray@rocketmail.com>
> Subject: Rocket-List: Wanted: RV4/Rocket HS and elevator...
> To: rocket-list@matronics.com
> Date: Monday, September 8, 2008, 11:10 AM Extreme hangar rash has
> claimed my right elevator. Since mine is an early one, all of the
> surfaces were .016 and I have decided to put a new tail on. Anybody
> have a spare? :)
>
> Rob Ray "Smokey"
> HR2
Message 2
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SNIP***** I've heard it adds 2 knots in comparision to the RV-4 elevator
counterweighted
tips.
Regards,
Jim Ayers ******SNIP
I'm dying to know who swapped elevators and made these tests on the same
day, under the same conditions, and is a good enough pilot to measure 2
knots accurately. I am skeptical that either tip would offer any real
speed, although the RV-4 tips should be lighter due to longer arm... but
even that isn't much.
If it's speed you're after, maybe that old RV-4 tail IS the way to go.
It's got a shorter VS that, in theory, should be less drag.
Vince - RV-4 tail, and like it.
Message 3
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| Subject: | Wanted: RV4/Rocket HS and elevator..........and SPEED!!!! |
It's yours Andrew, thanks to Rick for advertising them. I'm building a set
of larger RV4 elevators. According to someone who built a set, it makes the
Rockets pitch authority similar to a light nose RV4. I'm also purchasing a
HS from a friend who built an RV4 tail with the F-1 mods.
-More speed is cool, but maneuverability, pitch control at low speed (lan
ding on my 1800' strip!) are higher on my list. Heck, mine will do 200 knot
s on the deck at 27 squared now, big tires, old airframe, 15 year old decea
sed insects and all.
Been to NZ, neat place, next time I'll call!
Fair Dinkum!
Smokey
--- On Tue, 9/9/08, ACTIVE NZ - Andrew <andrew@nzactive.com> wrote:
From: ACTIVE NZ - Andrew <andrew@nzactive.com>
Subject: RE: Rocket-List: Wanted: RV4/Rocket HS and elevator..........and S
PEED!!!!
<andrew@nzactive.com>
Um. Clearly Smokey got in first, but if he's not interested, I might be.
I've long been a little concerned about the tail on my Rocket. Hard to
keep the thing below VA or VNO, in turbulence, when she's so FAST :)
Incidentally, Tom's post has me thinking. I'm not sure how his Rocket
is
only good for 170 knots, but I'm presume there's a good reason.
I've
always thought mine was a tad slower than the numbers I've been reading
- when people ask me how fast I cruise, I tell them, being
pathologically honest, I cruise at 199 knots TAS. I've read about
Rockets that cruise a lot faster than that...210 knots seems to be a
common figure. I can't get more than 200 knots TAS under any
circumstances, maybe 205 at sea level, 2700 RPM, WOT and full rich,
which is an expensive way to get another 5 knots. I've got a Lycon IO540
C4B5, slightly tweaked to produce 280 hp, and a light (VFR) airframe.
Anyone got any thoughts on how to get another 10 knots out of her?
I HAVE noted one thing which makes me wonder. At any sort of cruise,
there seems to be quite significant forward elevator. The front part of
the elevator (the horn?) seems to be an inch or so above the front of
the HS. If I was to tweak the incidence of my HS somehow, to get to a
point that the elevator is neutral at high speed cruise, would that
likely make her a little faster? I have two aerials, but otherwise a
clean airframe. Anyone got any ideas on getting a little more speed?
Feel free to email me offlist, andrew at active new zealand dot com.
(Anti spam version - u guys can figure it out :)
Also, GREAT to see the outputs from the OSH safety seminar. Lots of food
for thought. Thanks very much, everyone who contributed...
Andrew
PS standing invite to New Zealand for Rocketeers is always there. Best
Rocket flying in the world is down here in little old New Zealand, I
reckon, if you'll excuse the parochialism. As you guys head into winter,
if you're keen on a cool holiday and some kick-ass flying, well, you're
talking to the right guy! Google Active New Zealand, or add a dot com at
the end, and check out the sort of stuff we get up to down here in NZ.
The hiking's great....but the flying's sublime!!!
-----Original Message-----
From: owner-rocket-list-server@matronics.com
[mailto:owner-rocket-list-server@matronics.com] On Behalf Of Richard
Lundin
Sent: Tuesday, September 09, 2008 1:01 PM
Subject: Re: Rocket-List: Wanted: RV4/Rocket HS and elevator...
<rlundin46@yahoo.com>
If your interested in an RV 8 tail let me know.
Best regards,
Rick Lundin
--- On Mon, 9/8/08, Smoky Ray <smokyray@rocketmail.com> wrote:
> From: Smoky Ray <smokyray@rocketmail.com>
> Subject: Rocket-List: Wanted: RV4/Rocket HS and elevator...
> To: rocket-list@matronics.com
> Date: Monday, September 8, 2008, 11:10 AM Extreme hangar rash has
> claimed my right elevator. Since mine is an early one, all of the
> surfaces were .016 and I have decided to put a new tail on. Anybody
> have a spare? :)
>
> Rob Ray "Smokey"
> HR2
=0A=0A=0A
Message 4
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I think the diffrence is in the trailing edge construction, a sharp point VS
the rounded over blunt end of bent sheet metal. That is what made the RV 9
faster than they expected. Think of the difference if all the control surfaces
were done that way. Makes sense to me.
Kevin Shannon
SNIP***** I've heard it adds 2 knots in comparision to the RV-4 elevator
counterweighted
tips.
Regards,
Jim Ayers ******SNIP
I'm dying to know who swapped elevators and made these tests on the same
day, under the same conditions, and is a good enough pilot to measure 2
knots accurately. I am skeptical that either tip would offer any real
speed, although the RV-4 tips should be lighter due to longer arm... but
even that isn't much.
If it's speed you're after, maybe that old RV-4 tail IS the way to go.
It's got a shorter VS that, in theory, should be less drag.
Vince - RV-4 tail, and like it.
**************Psssst...Have you heard the news? There's a new fashion blog,
plus the latest fall trends and hair styles at StyleList.com.
(http://www.stylelist.com/trends?ncid=aolsty00050000000014)
Message 5
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"?Think of the difference if all the control surfaces were done that wa
y."
Nooooo.
There is a reason they are NOT all done that way.
The speed does not come for free. You get a significant increase in con
trol
input required to deflect at higher speed.
Mike
Im7shannon@aol.co
m
Sent by:
To
owner-rocket-list rocket-list@matronics.com
-server@matronics
cc
.com
Subj
ect
Re: Rocket-List: elevators
09/09/2008 12:05
PM
Please respond to
rocket-list@matro
nics.com
I think the diffrence is in the trailing edge construction, a sharp poi
nt
VS the rounded over blunt end of bent sheet metal. That is what made th
e RV
9 faster than they expected. Think of the difference if all the control
surfaces were done that way. Makes sense to me.
Kevin Shannon
SNIP***** I've heard it adds 2 knots in comparision to the RV-4 elevato
r
counterweighted
tips.
Regards,
Jim Ayers ******SNIP
I'm dying to know who swapped elevators and made these tests on the sam
e
day, under the same conditions, and is a good enough pilot to measure 2
knots accurately. I am skeptical that either tip would offer any real
speed, although the RV-4 tips should be lighter due to longer arm... bu
t
even that isn't much.
If it's speed you're after, maybe that old RV-4 tail IS the way to go.
It's got a shorter VS that, in theory, should be less drag.
Vince - RV-4 tail, and like it.
Psssst...Have you heard the news? There's a new fashion blog, plus the
latest fall trends and hair styles at StyleList.com.
========================
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========================
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========================
============
Message 6
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I didn't do the testing for that data.? However, using density altitude and a consistent
test procedure works pretty good.
Jim Ayers
-----Original Message-----
From: Frazier, Vincent A <VFrazier@usi.edu>
Sent: Tue, 9 Sep 2008 6:11 am
Subject: Rocket-List: elevators
SNIP***** I've heard it adds 2 knots in comparision to the RV-4 elevator
counterweighted
tips.
Regards,
Jim Ayers ******SNIP
I'm dying to know who swapped elevators and made these tests on the same
day, under the same conditions, and is a good enough pilot to measure 2
knots accurately. I am skeptical that either tip would offer any real
speed, although the RV-4 tips should be lighter due to longer arm... but
even that isn't much.
If it's speed you're after, maybe that old RV-4 tail IS the way to go.
It's got a shorter VS that, in theory, should be less drag.
Vince - RV-4 tail, and like it.
Message 7
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The same round trailing edge was used on both sets of elevators.
Jim Ayers
-----Original Message-----
From: Im7shannon@aol.com
Sent: Tue, 9 Sep 2008 9:05 am
Subject: Re: Rocket-List: elevators
I think the diffrence is in the trailing edge construction, a sharp point VS the
rounded over blunt end of bent sheet metal. That is what made the RV 9 faster
than they expected. Think of the difference if all the control surfaces were
done that way. Makes sense to me.
Kevin Shannon
?
SNIP***** I've heard it adds 2 knots in comparision to the RV-4 elevator
counterweighted
tips.
Regards,
Jim Ayers ******SNIP
I'm dying to know who swapped elevators and made these tests on the same
day, under the same conditions, and is a good enough pilot to measure 2
knots accurately.? I am skeptical that either tip would offer any real
speed, although the RV-4 tips should be lighter due to longer arm... but
even that isn't much.
If it's speed you're after, maybe that old RV-4 tail IS the way to go.
It's got a shorter VS that, in theory, should be less drag.
Vince - RV-4 tail, and like it.
?
Psssst...Have you heard the news? There's a new fashion blog, plus the latest fall
trends and hair styles at StyleList.com.
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