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

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tc1917(at)bellsouth.net
Guest

Posted: Mon Feb 11, 2019 4:46 am Post subject: Kolb-List Digest: 9 Msgs - 02/10/19

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

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                     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 

 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 

> 

> 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: 76

Posted: Mon Feb 11, 2019 7:49 am Post subject: 912 vs Jab on SS

 	  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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