Today's Message Index:
----------------------
1. 05:55 AM - Re: Prop me Up! (Daniel Weseman)
2. 06:21 AM - Re: Prop me Up! (Speedy11@aol.com)
3. 01:21 PM - Re: Prop me Up! (lessdragprod@aol.com)
4. 03:32 PM - Re: Prop me Up! (Rob Ray)
5. 04:35 PM - Re: Prop me Up! (Jim Stone)
6. 06:12 PM - Re: Prop me Up! (Daniel Weseman)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Which prop offers most low speed thrust and climbs the best ? =0A-Dan Wes
eman=0Adanweseman@yahoo.com=0Awww.flycleanex.com=0Awww.fly5thbearing.com
=0A=0A=0A=0A=0A________________________________=0AFrom: "lessdragprod@aol.c
om" <lessdragprod@aol.com>=0ATo: rocket-list@matronics.com=0ASent: Tue, Jul
y 6, 2010 11:46:10 PM=0ASubject: Re: Rocket-List: Prop me Up!=0A=0AHi Smoke
y,=0A=0ATom Gummo has the 4 blade propeller designed for the HR3 with a 380
hp engine.- =0ATom Gummo's HR2-doesn't have a 380 hp engine.- Theref
ore, the speed loss.=0A=0AThe 4 blade-propeller designed for the HR2 with
260 hp is-set for cruise at =0A15k.- It is about 2 knots slower than t
he 3 blade MT propeller at 4k.- And =0Aslightly faster tah the 3 blade by
around 9k.=0A=0AIf you are flying around 5k, then you'll want a 3 blade pr
opeller.- The standard =0A3 blade MT Propeller assembly-weighs around 5
6 pounds, conpared to 66 pounds for =0Aa Hartzell 2 blade propeller assembl
y on the same scales.=0A=0AThe 3 blade MT propeller is about 2 knots faster
than the "D" blade Hartzell, =0Aand the same speed as the "J" blade Hartze
ll, at Reno race altitudes.=0AWith both the "D" blade Hartzell and the 3 bl
ade MT Propeller strsight and =0Alevel-at full throttle, above 2600 RPM t
he aircraft losses about 3 mph.=0AThe "J" blade Hartzell keeps pulling to 2
800 RPM.- However, Wolfgang Meng says =0Awith 330 hp, the "J" stops at 26
00 RPM, also.=0A=0ARegards,=0AJim Ayers=0A=0A=0A-----Original Message-----
=0AFrom: Rob Ray <smokyray@rocketmail.com>=0ATo: Rocket List <rocket-list@m
atronics.com>=0ASent: Tue, Jul 6, 2010 6:48 am=0ASubject: Rocket-List: Prop
me Up!=0A=0A=0AGuys, =0A=0A--I have decided to "lighten up" the front
end of my HR2 and go to a composite =0Apropeller. I have seen several MT pr
ops for sale in BS and wonder how you MT =0Aflyers like your prop? I also l
ike the Whirlwind but $$$ is a factor. -Jim A and =0AGummy are running 4
blades, how do you guys like them?=0A-- Since most of my flying include
s over the top aerobatics, a lighter nose =0Awould be nice although my Hart
zell 2 blade "paddle" has served me well.-=0A=0A--Any comments prop o
==== =0A=0A=0A=0A
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Smokey,
I'm flying a lowly RV-8A with 210 HP (and thus don't need 3 blades), but I
have the MT 3 blade and I'm mostly happy with it. In drag races with 2
blade Hartzells, I stay right with them.
The spinner is chrome-look, made of Kevlar, and is very light.
You can see the prop at _http://www.rv-8a.net/2007.htm_
(http://www.rv-8a.net/2007.htm) and scroll down to 2 Apr 07.
I have flown in light to moderate rain and the leading edge of paint is
shredded.
Climb performance and acro performance with the 3 blade is excellent.
Corrosion on the leading edge metal is a constant problem.
Regards,
Stan Sutterfield
--I have decided to "lighten up" the front end of my HR2 and go to a co
mposite propeller. I have seen several MT props for sale in BS and wonder h
ow you MT flyers like your prop? I also like the Whirlwind but $$$ is a fac
tor. -Jim A and Gummy are running 4 blades, how do you guys like them?-
- Since most of my flying includes over the top aerobatics, a lighter nos
e would be nice although my Hartzell 2 blade "paddle" has served me well
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
That would be the 80" diameter 3 blade MT Propeller that Sean Tucker and
Kirby Chamblis use.
We haven't talked about that one yet. Of course, cruise speed suffers sli
ghtly.
Jim Ayers
-----Original Message-----
From: Daniel Weseman <danweseman@yahoo.com>
Sent: Wed, Jul 7, 2010 5:54 am
Subject: Re: Rocket-List: Prop me Up!
Which prop offers most low speed thrust and climbs the best ?
Dan Weseman
danweseman@yahoo.com
www.flycleanex.com
www.fly5thbearing.com
From: "lessdragprod@aol.com" <lessdragprod@aol.com>
Sent: Tue, July 6, 2010 11:46:10 PM
Subject: Re: Rocket-List: Prop me Up!
Hi Smokey,
Tom Gummo has the 4 blade propeller designed for the HR3 with a 380 hp eng
ine. Tom Gummo's HR2 doesn't have a 380 hp engine. Therefore, the speed
loss.
The 4 blade propeller designed for the HR2 with 260 hp is set for cruise
at 15k. It is about 2 knots slower than the 3 blade MT propeller at 4k.
And slightly faster tah the 3 blade by around 9k.
If you are flying around 5k, then you'll want a 3 blade propeller. The st
andard 3 blade MT Propeller assembly weighs around 56 pounds, conpared to
66 pounds for a Hartzell 2 blade propeller assembly on the same scales.
The 3 blade MT propeller is about 2 knots faster than the "D" blade Hartze
ll, and the same speed as the "J" blade Hartzell, at Reno race altitudes.
With both the "D" blade Hartzell and the 3 blade MT Propeller strsight and
level at full throttle, above 2600 RPM the aircraft losses about 3 mph.
The "J" blade Hartzell keeps pulling to 2800 RPM. However, Wolfgang Meng
says with 330 hp, the "J" stops at 2600 RPM, also.
Regards,
Jim Ayers
-----Original Message-----
From: Rob Ray <smokyray@rocketmail.com>
Sent: Tue, Jul 6, 2010 6:48 am
Subject: Rocket-List: Prop me Up!
Guys,
I have decided to "lighten up" the front end of my HR2 and go to a compo
site propeller. I have seen several MT props for sale in BS and wonder how
you MT flyers like your prop? I also like the Whirlwind but $$$ is a fact
or. Jim A and Gummy are running 4 blades, how do you guys like them?
Since most of my flying includes over the top aerobatics, a lighter nos
e would be nice although my Hartzell 2 blade "paddle" has served me well.
Any comments prop or con would be appreciated.
Smokey
========================
===========
-= - The Rocket-List Email Forum -
-= Use the Matronics List Features Navigator to browse
-= the many List utilities such as List Un/Subscription,
-= Archive Search & Download, 7-Day Browse, Chat, FAQ,
-= Photoshare, and much much more:
-
-= --> http://www.matronics.com/Navigator?Rocket-List
-
-========================
========================
===========
-= - MATRONICS WEB FORUMS -
-= Same great content also available via the Web Forums!
-
-= --> http://forums.matronics.com
-
-========================
========================
===========
-= - List Contribution Web Site -
-= Thank you for your generous support!
-= -Matt Dralle, List Admin.
-= --> http://www.matronics.com/contribution
-========================
========================
===========
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Hi Gummy, greatly appreciate it! -My "classic" HR2 performs exactly like
yours did with the 2 blade D twist. I operate off a short grass strip and m
ost every flight involves aerobatics, so a light nose would be very nice.
-
-Jim Ayers is working some numbers up for a three blade MT, looking forwa
rd to seeing it.
Thanks again!Smokey-
--- On Tue, 7/6/10, Tom Gummo <t.gummo@verizon.net> wrote:
From: Tom Gummo <t.gummo@verizon.net>
Subject: Re: Rocket-List: Prop me Up!
=0A=0A =0A =0A=0A=0A =0ASmokey,=0A-=0AI very much like the look of my MT
prop.- As I =0Adon't fly in the weather and live in the desert, I have no
t seen the effects of =0Arain on the paint.- I think I remember hearing a
bout the paint taking a =0Abeating when flying in heavy rain.=0A-=0AI hav
e two issues with the four blade MT prop I =0Ahave.- First, I lost about
10 knots TAS at cruise altitude with the four =0Ablade.- When I had the H
artzell two blade,-at 10.5 or 11.5 my normal =0Acruise altitude, full thr
ottle, prop back to 2100 or so, leaned out to 10.5 =0Agallons per hour, I t
rued at 180 knots.- Now, I true at 170 knots under that same conditions.
- Again, it =0Asure looks good.- Jim Ayers tells me that I don't have e
nough power to use =0Athe prop properly (my IO-540 J4A5, is only 250 hp).
- I did get a great deal =0Afrom John when I got it.- (See, I told you
all that I have the slowest =0Arocket.)=0A-=0AJim Ayers allowed me to use
a three blade MT prop =0Afor a couple weeks and it very hard to tell it th
ere was any speed lost at =0Aall.- I keep trying to get him find someone
that wants the four blade and =0Awill trade me for the three blade. =0A-
=0ASecond, I use the full throttle hot start =0Atechnique.- As all the we
ight is in the hub, it spins up quickly.- (It =0Awas only two pounds ligh
ter than the Hartzell.)- So when the engine starts, =0Ait CAN very quickl
y gets to 1200 to 1500 prm while I am reducing the throttle, =0Aadding mixt
ure, etc. etc (normally, I don't see that high of rpm on start but it =0Aha
s happened).=0AI have had the tail come off the ground and don't =0Awant AN
OTHER-Prop strike (reason for getting another prop in the first =0Aplace)
.- Which, it why I clear in front of me and if the plane wants to =0Aroll
a couple feet while I am starting, I let it.- So, while I call this an
=0Aissue, it is not problem at all.- Like most things, just learn to deal
with =0Ait.=0A-=0ASo fly out to SoCal and-I will let-you =0Asee the
prop from the-rear seat.- =0A:-)-----=0A-=0AGummiBear=0A=0A
----- Original Message ----- =0A From: =0A Rob =0A Ray =0A To: Rocket
List =0A Sent: Tuesday, July 06, 2010 6:48 =0AAM=0A Subject: Rocket-List
: Prop me Up!=0A
=0A =0A =0A =0A =0A =0A =0A =0A
=0A Guys,=0A
=0A --I have decided to "lighten up" the front end of =0A
my HR2 and go to a composite propeller. I have seen several MT
=0A props for sale in BS and wonder how you MT flyers like yo
ur prop? =0A I also like the Whirlwind but $$$ is a factor.
-Jim A and =0A Gummy are running 4 blades, how do you guys l
ike them?=0A -- Since most of my flying includes over the
top =0A aerobatics, a lighter nose would be nice although my H
artzell 2 =0A blade "paddle" has served me well.-=0A
=0A --Any comments prop or con would be =0A a
ppreciated.=0A
=0A Smokey
=0A=0Ahref="http://www.matronics.com/Navigator?Rocket-List">http://www.ma
tronhref="http://forums.matronics.com">http://forums.matronics.com=0Ahref
="http://www.matronics.com/contribution">http://www.matronics.com/c=0A
__________ Information from ESET NOD32 Antivirus, =0A version of virus sig
nature database 5256 (20100706) __________
The =0A message was checked by ESET NOD32 Antivirus.
=====================0A=0A=0A=0A=0A
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Rob, just to chime in, I love my MT 3 blade 205 kts TAS at max map, 2300
rpm and 11 gal/hr up to 9k then less above. I get about 500 miles with a
10 gal reserve, no wind. I normally cruise at 9 or above with max map
and 2200 rpm yielding 198-200 kts TAS. I got my MT from Jim A. he is a
great source of accurate info.
Jim Stone
Louisville Ky
PS When we gonna have that east coast Rocket fly-in?
On Jul 7, 2010, at 6:28 PM, Rob Ray wrote:
Hi Gummy, greatly appreciate it! My "classic" HR2 performs exactly like
yours did with the 2 blade D twist. I operate off a short grass strip
and most every flight involves aerobatics, so a light nose would be very
nice.
Jim Ayers is working some numbers up for a three blade MT, looking
forward to seeing it.
Thanks again!
Smokey
--- On Tue, 7/6/10, Tom Gummo <t.gummo@verizon.net> wrote:
From: Tom Gummo <t.gummo@verizon.net>
Subject: Re: Rocket-List: Prop me Up!
Smokey,
I very much like the look of my MT prop. As I don't fly in the weather
and live in the desert, I have not seen the effects of rain on the
paint. I think I remember hearing about the paint taking a beating when
flying in heavy rain.
I have two issues with the four blade MT prop I have. First, I lost
about 10 knots TAS at cruise altitude with the four blade. When I had
the Hartzell two blade, at 10.5 or 11.5 my normal cruise altitude, full
throttle, prop back to 2100 or so, leaned out to 10.5 gallons per hour,
I trued at 180 knots. Now, I true at 170 knots under that same
conditions. Again, it sure looks good. Jim Ayers tells me that I don't
have enough power to use the prop properly (my IO-540 J4A5, is only 250
hp). I did get a great deal from John when I got it. (See, I told you
all that I have the slowest rocket.)
Jim Ayers allowed me to use a three blade MT prop for a couple weeks and
it very hard to tell it there was any speed lost at all. I keep trying
to get him find someone that wants the four blade and will trade me for
the three blade.
Second, I use the full throttle hot start technique. As all the weight
is in the hub, it spins up quickly. (It was only two pounds lighter
than the Hartzell.) So when the engine starts, it CAN very quickly gets
to 1200 to 1500 prm while I am reducing the throttle, adding mixture,
etc. etc (normally, I don't see that high of rpm on start but it has
happened).
I have had the tail come off the ground and don't want ANOTHER Prop
strike (reason for getting another prop in the first place). Which, it
why I clear in front of me and if the plane wants to roll a couple feet
while I am starting, I let it. So, while I call this an issue, it is
not problem at all. Like most things, just learn to deal with it.
So fly out to SoCal and I will let you see the prop from the rear seat.
:-)
GummiBear
----- Original Message -----
From: Rob Ray
Sent: Tuesday, July 06, 2010 6:48 AM
Subject: Rocket-List: Prop me Up!
Guys,
I have decided to "lighten up" the front end of my HR2 and go to a
composite propeller. I have seen several MT props for sale in BS and
wonder how you MT flyers like your prop? I also like the Whirlwind but
$$$ is a factor. Jim A and Gummy are running 4 blades, how do you guys
like them?
Since most of my flying includes over the top aerobatics, a lighter
nose would be nice although my Hartzell 2 blade "paddle" has served me
well.
Any comments prop or con would be appreciated.
Smokey
href="http://www.matronics.com/Navigator?Rocket-List">http://www.matronh
ref="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
__________ Information from ESET NOD32 Antivirus, version of virus
signature database 5256 (20100706) __________
The message was checked by ESET NOD32 Antivirus.
http://www.matronics.com/Naet="_blank"
href="http://forums.matronics.com">http://forums.matronics.->
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Hi Guys Im still up for a fall east coast rocket flyin. I talked to-my rv
=0Afreinds and they are up for one here at-7FL (haller airpark) i-was
wanting to =0Aget past Oshkosh-then start making plans,any suggestions fo
r a date-etc- would =0Abe great. =0A=0A-Dan Weseman=0Adanweseman@yaho
o.com=0Awww.flycleanex.com=0Awww.fly5thbearing.com =0A=0A=0A=0A=0A_________
_______________________=0AFrom: Jim Stone <jrstone@insightbb.com>=0ATo: roc
ket-list@matronics.com=0ASent: Wed, July 7, 2010 7:34:50 PM=0ASubject: Re:
Rocket-List: Prop me Up!=0A=0ARob, just to chime in, I love my MT 3 blade 2
05 kts TAS at max map, 2300 rpm and =0A11 gal/hr up to 9k then less above.
I get about 500 miles with a 10 gal reserve, =0Ano wind. -I normally crui
se at 9 or above with max map and 2200 rpm yielding =0A198-200 kts TAS. -
I got my MT from Jim A. he is a great source of accurate info. =0A=0AJim St
one =0ALouisville Ky=0APS -When we gonna have that east coast Rocket fly-
in?=0A=0A=0AOn Jul 7, 2010, at 6:28 PM, Rob Ray wrote:=0A=0AHi Gummy, great
ly appreciate it! -My "classic" HR2 performs exactly like yours =0Adid wi
th the 2 blade D twist. I operate off a short grass strip and most every
=0Aflight involves aerobatics, so a light nose would be very nice.- =0A
=0A=0A-Jim Ayers is working some numbers up for a three blade MT, looking
forward to =0Aseeing it.=0A=0AThanks again!=0ASmokey-=0A=0A--- On Tue, 7
/6/10, Tom Gummo <t.gummo@verizon.net> wrote:=0A=0A=0A>From: Tom Gummo <t.g
ummo@verizon.net>=0A>Subject: Re: Rocket-List: Prop me Up!=0A>To: rocket-li
st@matronics.com=0A>Date: Tuesday, July 6, 2010, 1:18 PM=0A>=0A>=0A>Smokey,
=0A>-=0A>I very much like the look of my MT prop.- As I don't fly in th
e weather and live =0A>in the desert, I have not seen the effects of rain o
n the paint.- I think I =0A>remember hearing about the paint taking a bea
ting when flying in heavy rain.=0A>-=0A>I have two issues with the four b
lade MT prop I have.- First, I lost about 10 =0A>knots TAS at cruise alti
tude with the four blade.- When I had the Hartzell two =0A>blade,-at 10
.5 or 11.5 my normal cruise altitude, full throttle, prop back to =0A>2100
or so, leaned out to 10.5 gallons per hour, I trued at 180 knots.- Now, I
=0A>true at 170 knots under that same conditions.- Again, it sure looks
good.- Jim =0A>Ayers tells me that I don't have enough power to use the p
rop properly (my =0A>IO-540 J4A5, is only 250 hp).- I did get a great dea
l from John when I got it.- =0A>(See, I told you all that I have the slow
est rocket.)=0A>-=0A>Jim Ayers allowed me to use a three blade MT prop fo
r a couple weeks and it very =0A>hard to tell it there was any speed lost a
t all.- I keep trying to get him find =0A>someone that wants the four bla
de and will trade me for the three blade. =0A>=0A>-=0A>Second, I use the
full throttle hot start technique.- As all the weight is in =0A>the hub,
it spins up quickly.- (It was only two pounds lighter than the =0A>Hartze
ll.)- So when the engine starts, it CAN very quickly gets to 1200 to 1500
=0A>prm while I am reducing the throttle, adding mixture, etc. etc (normal
ly, I =0A>don't see that high of rpm on start but it has happened).=0A>I ha
ve had the tail come off the ground and don't want ANOTHER-Prop strike
=0A>(reason for getting another prop in the first place).- Which, it why
I clear in =0A>front of me and if the plane wants to roll a couple feet whi
le I am starting, I =0A>let it.- So, while I call this an issue, it is no
t problem at all.- Like most =0A>things, just learn to deal with it.=0A>
-=0A>So fly out to SoCal and-I will let-you see the prop from the-r
ear seat.- =0A>:-)-----=0A>-=0A>GummiBear=0A>----- Original M
essage ----- =0A>>From: Rob Ray =0A>>To: Rocket List =0A>>Sent: Tuesday, Ju
ly 06, 2010 6:48 AM=0A>>Subject: Rocket-List: Prop me Up!=0A>>=0A>>=0A>>Guy
s, =0A>>=0A>>=0A>>--I have decided to "lighten up" the front end of my
HR2 and go to a composite =0A>>propeller. I have seen several MT props for
sale in BS and wonder how you MT =0A>>flyers like your prop? I also like th
e Whirlwind but $$$ is a factor. -Jim A and =0A>>Gummy are running 4 blad
es, how do you guys like them?=0A>>-- Since most of my flying includes
over the top aerobatics, a lighter nose =0A>>would be nice although my Hart
zell 2 blade "paddle" has served me well.-=0A>>=0A>>=0A>>--Any commen
ts prop or con would be appreciated.=0A>>=0A>>=0A>>Smokey =0A>>=0A>> =0A>
>href="http://www.matronics.com/Navigator?Rocket-List">http://www.matronh
ref="http://forums.matronics.com">http://forums.matronics.com=0A>> href
="http://www.matronics.com/contribution">http://www.matronics.com/c =0A>>
=0A>>=0A>>__________ Information from ESET NOD32 Antivirus, version of viru
s signature =0A>>database 5256 (20100706) __________=0A>>=0A>>The message w
as checked by ESET NOD32 Antivirus.=0A>>=0A>>=0A>>http://www.matronics.com/
Navigator?Rocket-List =0A=0A =0Ahref="http://www.matronics.com/Navigator
?Rocket-List">http://www.matronics.com/Navigator?Rocket-List=0A href="htt
p://forums.matronics.com/">http://forums.matronics.com =0Ahref="http://ww
w.matronics.com/contribution">http://www.matronics.com/contribution=0A =0A
=============== =0A=0A=0A=0A
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|