Today's Message Index:
----------------------
1. 05:28 AM - Re: Kitfox = Fun factor (dave)
2. 08:43 AM - Kiev Prop update (catz631@aol.com)
3. 09:41 AM - Re: Kiev Prop update (Dave Fisher)
4. 10:03 AM - Re: Kitfox = Fun factor (WurlyBird)
5. 01:03 PM - Re: Kiev Prop update (JC Propeller Design)
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 |
|
| Subject: | Re: Kitfox = Fun factor |
Guys,
Good points on ski construction. I pondered about an extra brace from axle to the
tip but I wanted flex there.
On the pedestal itself there are 5 tubes , 4 of which are diagonally placed. These
will give excellent side load strength.
Just ahead of the 2 front diagonals is where I want it to flex and or bend. When
you take the arm and moment and extend it from a rigid structure to the axle
and existing lading gear then something will fail or the longeron might bend.
As far as the ladder design bending diamond shape -- I doubt it. The tubing .75
x 049 wall and I normalized all the joints so that cracking of crystallized
welds/tubes would be put to a minimum.
I have done some good drop in stalls form 20 feet landing on frozen sled tracks
and hitting over 4 g's on the g meter so far and no troubles.
Just remember some guys can wipe out a gear with little wheels on them, try adding
a 2 foot arm out away from the axle and see what stress is added.
Same goes for the new bush gears , I would be you see the 1/4" bolts bend if
they are not careful . After that the longerons and cross member go next.
More great videos up -- bout time some of you put your cameras where you mouth
is eh? Can't we all get along LOL?
http://www.youtube.com/user/kitfoxflyer
http://www.youtube.com/watch?v=ed1VRxzH0iU
http://www.youtube.com/watch?v=6rlAsOBEyeE
--------
Rotax Dealer, Ontario Canada
http://www.cfisher.com/
Awesome *New Forum *
http://rotaxaircraft.com/forum/
Realtime Kitfox movies to separate the internet chatter from the truth
http://www.youtube.com/profile_videos?user=kitfoxflyer
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=283052#283052
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 |
|
| Subject: | Kiev Prop update |
Well, this is the last you will hear from me on this subject so I will quit
boring you.
Yesterday was a golden day for flying. Temp was 70 degrees with 5 knots of
wind down the runway (today is dog do do)
I did all my test flying on this prop. (6 hrs worth..prop on/off, change
pitch,etc)) Here are the numbers:
KIEV PROP:
(1) 12 degrees pitch/4800 static/95-100 @5000 rpm/5500 full throttle
(2) 11 degrees pitch/5000 static/ _90@5000rpm/5800_
(mailto:90@5000rpm/5800) full throttle
(3) 10 degrees pitch/5200 _static/80@5000_ (mailto:static/80@5000)
rpm/ would have exceeded 5800 at full
Notes:
(1) Prop was much smoother running than the Warp, engine cooling
seemed to be greater ( cht and oil temps),power on approach was 2800 to
maintain 55 mph approach speed vs 1800 rpm on the Warp. Prop acted as a "flat
plate". If pulled to idle the aircraft would come down much faster (not
necessarily a bad thing..like going to full increase on a constant speed prop)
(2) prop pitch angles were based on the prop angle adjusting tool
marks not actual prop pitch angles
WARP PROP:
(1) 5200 static-5400 down the runway/88-90 @5000rpm/5700 full
throttle
CONCLUSION:
I really liked the beauty of the Kiev prop, but you just can't stand
around and look at it. I loved its smooth running (like a turbine). The static
rpm was way too low to achieve a meaningful speed increase for this prop.
5200 is the minimum per Rotax instruction.
I have gone back to my "butt ugly" Warp (as one guy called it).The prop
is well built and I like the prop to flange attachment much better than the
Kiev arrangement. The HP hub uses prop bushings on the outer holes for
better stability I think.(LYC/Cont style)
As a side note I did sell the Kiev within 1 hour of me telling a guy at
the Sebring Light Sport expo I did not want it. They are pretty backed up on
orders at Kiev.
Oh Well !!! ... I sure wish it would have worked !!!!
Dick Maddux
Fox 4
912UL
Milton,Fl
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 |
|
| Subject: | Re: Kiev Prop update |
Dick,
Great report on the Kiev although disappointing.
I would suggest IVO if you want more speed.IVo do look flimsy but they
do work well.
I run mostly WARP as for seaplane it near indestructable although it
heavier.
Dave
----- Original Message -----
From: catz631@aol.com
To: kitfox-list@matronics.com
Sent: Saturday, January 23, 2010 11:35 AM
Subject: Kitfox-List: Kiev Prop update
Well, this is the last you will hear from me on this subject so I will
quit boring you.
Yesterday was a golden day for flying. Temp was 70 degrees with 5
knots of wind down the runway (today is dog do do)
I did all my test flying on this prop. (6 hrs worth..prop on/off,
change pitch,etc)) Here are the numbers:
KIEV PROP:
(1) 12 degrees pitch/4800 static/95-100 @5000 rpm/5500 full
throttle
(2) 11 degrees pitch/5000 static/ 90@5000rpm/5800 full throttle
(3) 10 degrees pitch/5200 static/80@5000 rpm/ would have
exceeded 5800 at full
Notes:
(1) Prop was much smoother running than the Warp, engine
cooling seemed to be greater ( cht and oil temps),power on approach was
2800 to maintain 55 mph approach speed vs 1800 rpm on the Warp. Prop
acted as a "flat plate". If pulled to idle the aircraft would come down
much faster (not necessarily a bad thing..like going to full increase on
a constant speed prop)
(2) prop pitch angles were based on the prop angle adjusting tool
marks not actual prop pitch angles
WARP PROP:
(1) 5200 static-5400 down the runway/88-90 @5000rpm/5700 full
throttle
CONCLUSION:
I really liked the beauty of the Kiev prop, but you just can't
stand around and look at it. I loved its smooth running (like a
turbine). The static rpm was way too low to achieve a meaningful speed
increase for this prop. 5200 is the minimum per Rotax instruction.
I have gone back to my "butt ugly" Warp (as one guy called it).The
prop is well built and I like the prop to flange attachment much better
than the Kiev arrangement. The HP hub uses prop bushings on the outer
holes for better stability I think.(LYC/Cont style)
As a side note I did sell the Kiev within 1 hour of me telling a guy
at the Sebring Light Sport expo I did not want it. They are pretty
backed up on orders at Kiev.
Oh Well !!! ... I sure wish it would have worked !!!!
Dick Maddux
Fox 4
912UL
Milton,Fl
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 |
|
| Subject: | Re: Kitfox = Fun factor |
I am running out of time before this next deployment but if I can get the gearbox
put back on soon I will get some video of some of my STOL flights. A small
farm in front of my buddies house has been cleared so I am gonna try to pull
up right in his front yard.
--------
James
Kitfox 3 / 582 / GSC prop
The ink is still drying on my new certificate
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=283107#283107
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 |
|
| Subject: | Re: Kiev Prop update |
There is some test of different props on
http://www.stolspeed.com/id/62?secondary_id
Pic seems to be gone, but text is there.
it say about the same as your short test, not a big difference in cruise
speed but in static rpm.
Bolly seems to be a snap better.
Jan
----- Original Message -----
From: catz631@aol.com
To: kitfox-list@matronics.com
Sent: Saturday, January 23, 2010 5:35 PM
Subject: Kitfox-List: Kiev Prop update
Well, this is the last you will hear from me on this subject so I will
quit boring you.
Yesterday was a golden day for flying. Temp was 70 degrees with 5
knots of wind down the runway (today is dog do do)
I did all my test flying on this prop. (6 hrs worth..prop on/off,
change pitch,etc)) Here are the numbers:
KIEV PROP:
(1) 12 degrees pitch/4800 static/95-100 @5000 rpm/5500 full
throttle
(2) 11 degrees pitch/5000 static/ 90@5000rpm/5800 full throttle
(3) 10 degrees pitch/5200 static/80@5000 rpm/ would have
exceeded 5800 at full
Notes:
(1) Prop was much smoother running than the Warp, engine
cooling seemed to be greater ( cht and oil temps),power on approach was
2800 to maintain 55 mph approach speed vs 1800 rpm on the Warp. Prop
acted as a "flat plate". If pulled to idle the aircraft would come down
much faster (not necessarily a bad thing..like going to full increase on
a constant speed prop)
(2) prop pitch angles were based on the prop angle adjusting tool
marks not actual prop pitch angles
WARP PROP:
(1) 5200 static-5400 down the runway/88-90 @5000rpm/5700 full
throttle
CONCLUSION:
I really liked the beauty of the Kiev prop, but you just can't
stand around and look at it. I loved its smooth running (like a
turbine). The static rpm was way too low to achieve a meaningful speed
increase for this prop. 5200 is the minimum per Rotax instruction.
I have gone back to my "butt ugly" Warp (as one guy called it).The
prop is well built and I like the prop to flange attachment much better
than the Kiev arrangement. The HP hub uses prop bushings on the outer
holes for better stability I think.(LYC/Cont style)
As a side note I did sell the Kiev within 1 hour of me telling a guy
at the Sebring Light Sport expo I did not want it. They are pretty
backed up on orders at Kiev.
Oh Well !!! ... I sure wish it would have worked !!!!
Dick Maddux
Fox 4
912UL
Milton,Fl
__________ Information from ESET NOD32 Antivirus, version of virus
signature database 4750 (20100107) __________
The message was checked by ESET NOD32 Antivirus.
__________ Information from ESET NOD32 Antivirus, version of virus signatur
e database 4750 (20100107) __________
The message was checked by ESET NOD32 Antivirus.
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! --
|