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Kolb-List Digest: 9 Msgs - 02/10/19

 
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tc1917(at)bellsouth.net
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PostPosted: Mon Feb 11, 2019 4:46 am    Post subject: Kolb-List Digest: 9 Msgs - 02/10/19 Reply with quote

Jab vs 912 is no contest! Even with rads and WD prop, the 912 will run the pants off a jab on a slingshot. I have a 912 on mine and I wouldn't trade it. Been flying it for ten years. Started with 582. What a difference. I cruise at 95+ with 4 gph with full camping gear. If you set it up right (change angle of engine mounts) it is light on stick. Like driving a Beemer. Will send pics if needed. My two cents. Ted Cowan slingshot 912 ul zoom zoom

Sent from my iPhone

Quote:
On Feb 11, 2019, at 1:37 AM, Kolb-List Digest Server <kolb-list(at)matronics.com> wrote:

*

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----------------------------------------------------------
Kolb-List Digest Archive
---
Total Messages Posted Sun 02/10/19: 9
----------------------------------------------------------


Today's Message Index:
----------------------

1. 05:19 AM - Jabiru 2200 installation and flight comments? (13brv3)
2. 01:15 PM - Re: Jabiru 2200 installation and flight comments? (Malcolm Brubaker)
3. 03:30 PM - Re: Jabiru 2200 installation and flight comments? (13brv3)
4. 03:51 PM - Re: Re: Jabiru 2200 installation and flight comments? (B Young)
5. 04:00 PM - Re: Re: Jabiru 2200 installation and flight comments? (Pfatchantz)
6. 04:31 PM - Re: Re: Jabiru 2200 installation and flight comments? (Richard Girard)
7. 04:33 PM - Re: Jabiru 2200 installation and flight comments? (13brv3)
8. 07:20 PM - Re: Re: Jabiru 2200 installation and flight comments? (Gary Aman)
9. 07:30 PM - Re: Jabiru 2200 installation and flight comments? (13brv3)



________________________________ Message 1 _____________________________________


Time: 05:19:08 AM PST US
Subject: Jabiru 2200 installation and flight comments?
From: "13brv3" <13brv3(at)gmail.com>


Greetings,

While considering engines for the latest Slingshot project, I ran across the Jabiru
2200 engines. I know Thom had one on a Slingshot, and he seemed happy with
the performance. I've heard of a few on Mk-3s as well. Is anyone still flying
with a Jabiru? Has anyone flown with the Jabiru 2200 and some other engine
on the same plane for comparison? I'd love to see some additional installation
pictures, particularly how the exhaust was routed.

FWIW, I'm currently looking at the HKS, Jabiru 2200, and 912. All of these have
some pros and cons.

Thanks,
Rusty


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=487506#487506


________________________________ Message 2 _____________________________________


Time: 01:15:10 PM PST US
From: Malcolm Brubaker <brubakermal(at)yahoo.com>
Subject: Re: Jabiru 2200 installation and flight comments?

the HKS is only about as powerful as the rotax 503=C2- the jabiru would b
e a nice fit for your kolb=C2-

Sent from Yahoo Mail on Android

On Sun, Feb 10, 2019 at 8:23 AM, 13brv3<13brv3(at)gmail.com> wrote: --> Ko
lb-List message posted by: "13brv3" <13brv3(at)gmail.com>

Greetings,

While considering engines for the latest Slingshot project, I ran across th
e Jabiru 2200 engines.=C2- I know Thom had one on a Slingshot, and he see
med happy with the performance.=C2- I've heard of a few on Mk-3s as well.
=C2- Is anyone still flying with a Jabiru?=C2- Has anyone flown with th
e Jabiru 2200 and some other engine on the same plane for comparison?=C2-
I'd love to see some additional installation pictures, particularly how th
e exhaust was routed.=C2-

FWIW, I'm currently looking at the HKS, Jabiru 2200, and 912.=C2- All of
these have some pros and cons.=C2-

Thanks,
Rusty


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=487506#487506


S -
WIKI -
-
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.


________________________________ Message 3 _____________________________________


Time: 03:30:04 PM PST US
Subject: Re: Jabiru 2200 installation and flight comments?
From: "13brv3" <13brv3(at)gmail.com>



brubakermal(at)yahoo.com wrote:
> the HKS is only about as powerful as the rotax 503 the jabiru would be a nice
fit for your kolb


The Jabiru 2200 checks all the boxes for me, but I haven't seen many for sale used,
and new isn't an option for any of these engines. The only real installation
issue is that the wings won't fold with the standard pusher exhaust config,
but I have to believe that can be fixed. Otherwise it's a clean installation,
with reportedly good performance despite being direct drive. The other bonus
is that the US Jabiru dealer is only about 3 hrs west of me if needed.

The HKS appeal is that it's the lightest, most compact 4-stroke option, as well
as being the quietest with the 3.47 gears, and probably the most fuel efficient.
My old 503 SS performance wasn't all that bad, but I was young, and feeling
the need for speed. Now that I'm getting old, and have proven repeatedly that
I won't travel in the plane, I could probably be happier with the lower performance.


Of course the 912 is hands down the most popular option, but they're pricey, heavy,
noisy, and require water and oil coolers. The years have taught me to go
with the flow a bit more than I used to, but I hate to be too conventional Smile

Rusty


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=487510#487510


________________________________ Message 4 _____________________________________


Time: 03:51:25 PM PST US
From: B Young <byoungplumbing(at)gmail.com>
Subject: Re: Re: Jabiru 2200 installation and flight comments?

For me the problem with the jabiru is the direct drive. You'll need a
shorter prop, which is ok if your plane was designed to fly faster. Say
125 mph or so. The faster turning shorter prop becomes more efficient at
higher speeds. The kolbs need a longer slower turning prop too get the
most out of the engine horse power.

Boyd


>
>

________________________________ Message 5 _____________________________________


Time: 04:00:22 PM PST US
From: Pfatchantz <Pfatchantz(at)protonmail.ch>
Subject: Re: Re: Jabiru 2200 installation and flight comments?


Might do some checking about the cooling of the Jab...I have chatted with tractor
and pusher builders and some have mentioned cooling difficulties...Herb


Sent with ProtonMail Secure Email.

Original Message
> On Sunday, February 10, 2019 5:29 PM, 13brv3 <13brv3(at)gmail.com> wrote:
>
>
> brubakermal(at)yahoo.com wrote:
>
>> the HKS is only about as powerful as the rotax 503 the jabiru would be a nice
fit for your kolb
>
> The Jabiru 2200 checks all the boxes for me, but I haven't seen many for sale
used, and new isn't an option for any of these engines. The only real installation
issue is that the wings won't fold with the standard pusher exhaust config,
but I have to believe that can be fixed. Otherwise it's a clean installation,
with reportedly good performance despite being direct drive. The other bonus
is that the US Jabiru dealer is only about 3 hrs west of me if needed.
>
> The HKS appeal is that it's the lightest, most compact 4-stroke option, as well
as being the quietest with the 3.47 gears, and probably the most fuel efficient.
My old 503 SS performance wasn't all that bad, but I was young, and feeling
the need for speed. Now that I'm getting old, and have proven repeatedly that
I won't travel in the plane, I could probably be happier with the lower performance.
>
> Of course the 912 is hands down the most popular option, but they're pricey,
heavy, noisy, and require water and oil coolers. The years have taught me to go
with the flow a bit more than I used to, but I hate to be too conventional Smile
>
> Rusty
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=487510#487510
>


________________________________ Message 6 _____________________________________


Time: 04:31:10 PM PST US
From: Richard Girard <aslsa.rng(at)gmail.com>
Subject: Re: Re: Jabiru 2200 installation and flight comments?

Boyd, For what it's worth I've been working on a friend's Zenith 701 with a
2200A Jabby and a two blade Sensenich prop. I set the prop for 3120 RPM
static at which it pulls 310 lb. as measured with a digital force gauge. My
concern on a Kolb would be the need for a light weight prop. The Sensenich
is built similar to the Power Fin, i.e. light and hollow and won't tolerate
FOD like a Warp Drive will.

Rick

> On Sun, Feb 10, 2019 at 5:53 PM B Young <byoungplumbing(at)gmail.com> wrote:
>
> For me the problem with the jabiru is the direct drive. You'll need a
> shorter prop, which is ok if your plane was designed to fly faster. Say
> 125 mph or so. The faster turning shorter prop becomes more efficient a
t
> higher speeds. The kolbs need a longer slower turning prop too get the
> most out of the engine horse power.
>
> Boyd
>
>
>>
>>
>>
>>

--
=9CBlessed are the cracked, for they shall let in the light.=9D
Groucho Marx
<http://www.goodreads.com/author/show/43244.Groucho_Marx>

________________________________ Message 7 _____________________________________


Time: 04:33:13 PM PST US
Subject: Re: Jabiru 2200 installation and flight comments?
From: "13brv3" <13brv3(at)gmail.com>


There's precious little data available for Jabiru equipped Kolbs, but I've been
exchanging emails with Thom, who owned a Jabiru 2200 Slingshot. He was definitely
a fan, and it sounds like it had plenty of performance with the 64" prop
he was running. Cooling shrouds are a must, but I wouldn't expect any air cooled
engine to have optimum cooling without them.

I've actually been trying to buy an HKS that was up for sale, at a price that would
make it worth trying. It doesn't look like that's going to work out though,
which may be for the best.

Rusty


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=487513#487513


________________________________ Message 8 _____________________________________


Time: 07:20:11 PM PST US
From: Gary Aman <zeprep251(at)aol.com>
Subject: Re: Re: Jabiru 2200 installation and flight comments?


Have a MK 3C with 2200 Jabiru 1100 hrs ,unusual cooling configuration, no heat
problems. Cruise 70mph 2700rpm Sen wood prop 4264 I think, 3150 rpm takeoff. Have
some Picts I could e mail.

Sent from my iPhone

> On Feb 10, 2019, at 7:33 PM, 13brv3 <13brv3(at)gmail.com> wrote:
>
>
> There's precious little data available for Jabiru equipped Kolbs, but I've been
exchanging emails with Thom, who owned a Jabiru 2200 Slingshot. He was definitely
a fan, and it sounds like it had plenty of performance with the 64" prop
he was running. Cooling shrouds are a must, but I wouldn't expect any air
cooled engine to have optimum cooling without them.
>
> I've actually been trying to buy an HKS that was up for sale, at a price that
would make it worth trying. It doesn't look like that's going to work out though,
which may be for the best.
>
> Rusty
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=487513#487513
>
>
>
>
>
>
>
>
>


________________________________ Message 9 _____________________________________


Time: 07:30:43 PM PST US
Subject: Re: Jabiru 2200 installation and flight comments?
From: "13brv3" <13brv3(at)gmail.com>



zeprep251(at)aol.com wrote:
> Have a MK 3C with 2200 Jabiru 1100 hrs ,unusual cooling configuration, no heat
problems. Cruise 70mph 2700rpm Sen wood prop 4264 I think, 3150 rpm takeoff.
Have some Picts I could e mail.


That's good to hear. I'd love to see any installation pictures you have.

Thanks,
Rusty
13brv3(at)gmail.com


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=487516#487516










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13brv3



Joined: 11 Jan 2006
Posts: 55

PostPosted: Mon Feb 11, 2019 7:49 am    Post subject: 912 vs Jab on SS Reply with quote

tc1917(at)bellsouth.net wrote:
Jab vs 912 is no contest! Even with rads and WD prop, the 912 will run the pants off a jab on a slingshot. I have a 912 on mine and I wouldn't trade it. Been flying it for ten years. Started with 582. What a difference. I cruise at 95+ with 4 gph with full camping gear. If you set it up right (change angle of engine mounts) it is light on stick. Like driving a Beemer. Will send pics if needed. My two cents. Ted Cowan slingshot 912 ul zoom zoom


Thanks for the comments Ted. The 912 is a great engine for sure, and if one comes along that seems to be a good deal, I'll grab it. I have a few takeoffs and landings in a 912S SS, and lots of pictures of the installation.

Regardless of the engine used, it seems the rear of the engine needs to be raised on the SS. Even my old 503 had nearly an inch spacer under the rear mounts when I was done with it. As it turns out, the mount was removed on the cage I have, and I'll be restoring it. I'll likely build in a bit more angle when I do.

Thanks,
Rusty


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