Today's Message Index:
----------------------
1. 09:23 AM - Re: Mark 3 classic with VW power (Rick Neilsen)
2. 09:40 AM - Re: Mark 3 classic with VW power (Erich McGrew)
3. 10:11 AM - Re: Mark 3 classic with VW power (Rick Neilsen)
4. 11:03 AM - Re: Mark 3 classic with VW power (Charlie England)
5. 12:22 PM - Re: Mark 3 classic with VW power (Malcolm Brubaker)
6. 03:09 PM - Re: Mark 3 classic with VW power (Rick Neilsen)
7. 06:21 PM - Re: Mark 3 classic with VW power (Charlie England)
Message 1
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| Subject: | Re: Mark 3 classic with VW power |
Erich
The redrive VW is the least expensive option for powering a Kolb MKIII by a
large margin. It will perform about like a 80 HP 912 Rotax. It weighs about
10-15 lbs more than a 912 with some trimming of unneeded material. The
newer aluminium VW cases are a bit heavier. I'm happy to answer any
questions.
Rick Neilsen
Redrive VW powered MKIIIC
On Sun, Mar 3, 2024 at 3:14=AFPM Erich McGrew <em0070@gmail.com> wrot
e:
> Does anyone have any experience using the Great Plains vw engine with the
> newer front driven reduction drive?
>
> I'm looking to repower a Mark3 classic.
>
> Any suggestions, or comments, and thoughts would be appreciated.
>
> Thanks
> Erich
>
Message 2
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| Subject: | Re: Mark 3 classic with VW power |
Rick,
Thanks for the info.
I've inherited this airframe from a friend of my brothers.
He attempted to build his using a vw and some type of redrive that ran off
the flywheel end of the pulley.
Sady Valley/Culver are no longer supplying the Redrive units.
I was looking at the Great Plains unit that looks to be very similar to the
Valley/Culver.
- 0014 / 1.7:1 Reduction Drive System #0014 (greatplainsas.com)
It seems that Great Plains is no longer selling the other style of front
redrive that they used to sell.
Any info and thoughts are appreciated.
Regards
Erich
On Mon, Mar 4, 2024 at 11:24=AFAM Rick Neilsen <neilsenrm@gmail.com>
wrote:
> Erich
>
> The redrive VW is the least expensive option for powering a Kolb MKIII by
> a large margin. It will perform about like a 80 HP 912 Rotax. It weighs
> about 10-15 lbs more than a 912 with some trimming of unneeded material.
> The newer aluminium VW cases are a bit heavier. I'm happy to answer any
> questions.
>
> Rick Neilsen
> Redrive VW powered MKIIIC
>
> On Sun, Mar 3, 2024 at 3:14=AFPM Erich McGrew <em0070@gmail.com> wr
ote:
>
>> Does anyone have any experience using the Great Plains vw engine with th
e
>> newer front driven reduction drive?
>>
>> I'm looking to repower a Mark3 classic.
>>
>> Any suggestions, or comments, and thoughts would be appreciated.
>>
>> Thanks
>> Erich
>>
>
Message 3
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| Subject: | Re: Mark 3 classic with VW power |
Yes the GP redrive looks the same. I would assume it is the same redrive. I
have a 1.6 redrive and the 1.7 might be a better fit. I first put a direct
drive VW on my Kolb
Rick Neilsen
On Mon, Mar 4, 2024 at 12:41=AFPM Erich McGrew <em0070@gmail.com> wro
te:
> Rick,
>
> Thanks for the info.
> I've inherited this airframe from a friend of my brothers.
> He attempted to build his using a vw and some type of redrive that ran of
f
> the flywheel end of the pulley.
>
> Sady Valley/Culver are no longer supplying the Redrive units.
> I was looking at the Great Plains unit that looks to be very similar to
> the Valley/Culver.
>
> - 0014 / 1.7:1 Reduction Drive System #0014 (greatplainsas.com)
>
> It seems that Great Plains is no longer selling the other style of front
> redrive that they used to sell.
>
> Any info and thoughts are appreciated.
>
> Regards
> Erich
>
> On Mon, Mar 4, 2024 at 11:24=AFAM Rick Neilsen <neilsenrm@gmail.com
> wrote:
>
>> Erich
>>
>> The redrive VW is the least expensive option for powering a Kolb MKIII b
y
>> a large margin. It will perform about like a 80 HP 912 Rotax. It weighs
>> about 10-15 lbs more than a 912 with some trimming of unneeded material.
>> The newer aluminium VW cases are a bit heavier. I'm happy to answer any
>> questions.
>>
>> Rick Neilsen
>> Redrive VW powered MKIIIC
>>
>> On Sun, Mar 3, 2024 at 3:14=AFPM Erich McGrew <em0070@gmail.com> w
rote:
>>
>>> Does anyone have any experience using the Great Plains vw engine with
>>> the newer front driven reduction drive?
>>>
>>> I'm looking to repower a Mark3 classic.
>>>
>>> Any suggestions, or comments, and thoughts would be appreciated.
>>>
>>> Thanks
>>> Erich
>>>
>>
Message 4
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| Subject: | Re: Mark 3 classic with VW power |
Might be worth looking at Air Trikes <https://airtrikes.net/engines.shtml>;
they make a 'universal' gearbox that would likely work with a VW, since
they work with both 3 & 4 cyl Suzuki & 4 cyl Subaru.
There's also Ace Aviation <https://www.aceaviation.co.uk/redrives>.
They've got multi-V belt drives running on clones of the 80 HP Can Am 90
degree V-twins, with no 'damper' in the drive. Only way to do that is to
make the drive incredibly stout.
With either of those, you'd likely need to come up with your own adapter.
FWIW, given how far tech has come since the 1960s, if I were installing a
60-80 HP engine today the VW would not be on my list unless I already had
one sitting on the bench ready to run. The little Yamaha Phazer (80 HP in
the snowmobile and a reliable 70-75 in a plane) weighs almost exactly the
same as a Rotax 582, with both ready to run. The Can Am clones (Gaokin) are
a bit heavier with slightly less HP, but still a lot lighter than a VW.
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On Mon, Mar 4, 2024 at 11:41=AFAM Erich McGrew <em0070@gmail.com> wro
te:
> Rick,
>
> Thanks for the info.
> I've inherited this airframe from a friend of my brothers.
> He attempted to build his using a vw and some type of redrive that ran of
f
> the flywheel end of the pulley.
>
> Sady Valley/Culver are no longer supplying the Redrive units.
> I was looking at the Great Plains unit that looks to be very similar to
> the Valley/Culver.
>
> - 0014 / 1.7:1 Reduction Drive System #0014 (greatplainsas.com)
>
> It seems that Great Plains is no longer selling the other style of front
> redrive that they used to sell.
>
> Any info and thoughts are appreciated.
>
> Regards
> Erich
>
> On Mon, Mar 4, 2024 at 11:24=AFAM Rick Neilsen <neilsenrm@gmail.com
> wrote:
>
>> Erich
>>
>> The redrive VW is the least expensive option for powering a Kolb MKIII b
y
>> a large margin. It will perform about like a 80 HP 912 Rotax. It weighs
>> about 10-15 lbs more than a 912 with some trimming of unneeded material.
>> The newer aluminium VW cases are a bit heavier. I'm happy to answer any
>> questions.
>>
>> Rick Neilsen
>> Redrive VW powered MKIIIC
>>
>> On Sun, Mar 3, 2024 at 3:14=AFPM Erich McGrew <em0070@gmail.com> w
rote:
>>
>>> Does anyone have any experience using the Great Plains vw engine with
>>> the newer front driven reduction drive?
>>>
>>> I'm looking to repower a Mark3 classic.
>>>
>>> Any suggestions, or comments, and thoughts would be appreciated.
>>>
>>> Thanks
>>> Erich
>>>
>>
Message 5
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| Subject: | Re: Mark 3 classic with VW power |
Charls england do you remember the yahoo user groups form?im looko g for so
me old information. Do you know much about how to go adout looking back at
that stuff?
Sent from Yahoo Mail on Android
On Mon, Mar 4, 2024 at 2:05 PM, Charlie England<ceengland7@gmail.com> wro
te: Might be worth looking at Air Trikes; they make a 'universal' gearbox
that would likely work with a VW, since they work with both 3 & 4 cyl Suzu
ki & 4 cyl Subaru.There's also Ace Aviation.=C2- They've got multi-V belt
drives running on clones of=C2- the 80 HP Can Am 90 degree V-twins, with
no 'damper' in the drive. Only way to do that is to make the drive incredi
bly stout.
With either of those, you'd likely need to come up with your own adapter. F
WIW, given how far tech has come since the 1960s, if I were installing a 60
-80 HP engine today the VW would not be on my list unless I already had one
sitting on the bench ready to run. The little Yamaha Phazer (80 HP in the
snowmobile and a reliable 70-75 in a plane) weighs almost=C2-exactly the
same as a Rotax 582, with both ready to run. The Can Am clones (Gaokin) are
a bit heavier with slightly less HP, but still a lot lighter than a VW.
| | Virus-free.www.avast.com |
On Mon, Mar 4, 2024 at 11:41=AFAM Erich McGrew <em0070@gmail.com> wro
te:
Rick,=C2-
Thanks for the=C2-info.=C2-I've inherited=C2-this airframe from a fri
end of my brothers.=C2-He attempted to build his using a vw and some type
of redrive that ran off the flywheel end of the pulley.=C2-
Sady Valley/Culver are no longer supplying the Redrive units.=C2-I was lo
oking at the Great Plains unit that looks to be very similar to the Valley/
Culver.
- 0014 / 1.7:1 Reduction Drive System #0014 (greatplainsas.com)
It seems that Great Plains is no longer selling the other style of front re
drive that they used to sell.=C2-
Any info and thoughts are=C2-appreciated.
RegardsErich
On Mon, Mar 4, 2024 at 11:24=AFAM Rick Neilsen <neilsenrm@gmail.com>
wrote:
Erich
The redrive VW is the least expensive option for powering a Kolb MKIII by a
large margin. It will perform about like a 80 HP 912 Rotax. It weighs abou
t 10-15 lbs more than a 912 with some trimming of unneeded material. The ne
wer aluminium VW cases are a bit heavier. I'm happy to answer any questions
.
Rick NeilsenRedrive VW powered MKIIIC=C2-
On Sun, Mar 3, 2024 at 3:14=AFPM Erich McGrew <em0070@gmail.com> wrot
e:
Does anyone have any experience using the Great Plains vw engine with the n
ewer front driven reduction drive?=C2-
I'm looking to repower a Mark3 classic.=C2-
Any suggestions, or comments,=C2- and thoughts would be appreciated.=C2
-=C2-
Thanks=C2-Erich=C2-
Message 6
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| Subject: | Re: Mark 3 classic with VW power |
Agreed but.
GA aircraft engines are much older design than VW with lower power power to
weight. They are still used in new designs because they are proven reliable
.
The only thing old in a VW engine is the case. There was 20 years ago loads
of high tech low cost racing parts for every part of a VW engine.
When you start out with a new engine in a plane you are the designer of a
bunch of custom parts. When you get in the air you are the test pilot. I
designed the VW engine mount and Kolb refined it. Are you up to that task
and many others? My first try was a direct drive VW that was a real dog.
The second try was with a cog belt redrive that broke returning from
Oshkosh. Only Kolb forced landing.
All good redrives have some form of harmonic dampener. Another Kolb/VW
builder went with what was advertised as a strong gear drive without a
dampener. Within just a few minutes he sheared a high strength drive shaft.
Keep us up to date on what you decide
Rick Neilsen
Redrive VW powered MKIIC
On Mon, Mar 4, 2024 at 2:04=AFPM Charlie England <ceengland7@gmail.co
m> wrote:
> Might be worth looking at Air Trikes <https://airtrikes.net/engines.shtml
>;
> they make a 'universal' gearbox that would likely work with a VW, since
> they work with both 3 & 4 cyl Suzuki & 4 cyl Subaru.
> There's also Ace Aviation <https://www.aceaviation.co.uk/redrives>.
> They've got multi-V belt drives running on clones of the 80 HP Can Am 90
> degree V-twins, with no 'damper' in the drive. Only way to do that is to
> make the drive incredibly stout.
>
> With either of those, you'd likely need to come up with your own adapter.
> FWIW, given how far tech has come since the 1960s, if I were installing a
> 60-80 HP engine today the VW would not be on my list unless I already had
> one sitting on the bench ready to run. The little Yamaha Phazer (80 HP in
> the snowmobile and a reliable 70-75 in a plane) weighs almost exactly the
> same as a Rotax 582, with both ready to run. The Can Am clones (Gaokin) a
re
> a bit heavier with slightly less HP, but still a lot lighter than a VW.
>
>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm
_campaign=sig-email&utm_content=webmail>
> Virus-free.www.avast.com
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>
> On Mon, Mar 4, 2024 at 11:41=AFAM Erich McGrew <em0070@gmail.com> w
rote:
>
>> Rick,
>>
>> Thanks for the info.
>> I've inherited this airframe from a friend of my brothers.
>> He attempted to build his using a vw and some type of redrive that ran
>> off the flywheel end of the pulley.
>>
>> Sady Valley/Culver are no longer supplying the Redrive units.
>> I was looking at the Great Plains unit that looks to be very similar to
>> the Valley/Culver.
>>
>> - 0014 / 1.7:1 Reduction Drive System #0014 (greatplainsas.com)
>>
>> It seems that Great Plains is no longer selling the other style of front
>> redrive that they used to sell.
>>
>> Any info and thoughts are appreciated.
>>
>> Regards
>> Erich
>>
>> On Mon, Mar 4, 2024 at 11:24=AFAM Rick Neilsen <neilsenrm@gmail.co
m> wrote:
>>
>>> Erich
>>>
>>> The redrive VW is the least expensive option for powering a Kolb MKIII
>>> by a large margin. It will perform about like a 80 HP 912 Rotax. It wei
ghs
>>> about 10-15 lbs more than a 912 with some trimming of unneeded material
.
>>> The newer aluminium VW cases are a bit heavier. I'm happy to answer any
>>> questions.
>>>
>>> Rick Neilsen
>>> Redrive VW powered MKIIIC
>>>
>>> On Sun, Mar 3, 2024 at 3:14=AFPM Erich McGrew <em0070@gmail.com>
wrote:
>>>
>>>> Does anyone have any experience using the Great Plains vw engine with
>>>> the newer front driven reduction drive?
>>>>
>>>> I'm looking to repower a Mark3 classic.
>>>>
>>>> Any suggestions, or comments, and thoughts would be appreciated.
>>>>
>>>> Thanks
>>>> Erich
>>>>
>>>
Message 7
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| Subject: | Re: Mark 3 classic with VW power |
On Mon, Mar 4, 2024 at 5:11=AFPM Rick Neilsen <neilsenrm@gmail.com> w
rote:
> Agreed but.
>
> GA aircraft engines are much older design than VW with lower power power
> to weight. They are still used in new designs because they are proven
> reliable.
>
> snipped
>
> All good redrives have some form of harmonic dampener. Another Kolb/VW
> builder went with what was advertised as a strong gear drive without a
> dampener. Within just a few minutes he sheared a high strength drive shaf
t.
>
> Keep us up to date on what you decide
>
> Rick Neilsen
> Redrive VW powered MKIIC
>
>>
>>> No disagreement about the wisdom of using harmonic dampers; that's why
I
mentioned the lack of one on that belt drive (the Air Trikes gear drives
*do* have HDs). But as I said, there are people running the Ace drives on
big V-twins, so it's tempting to think that they may be doing something
right. ;-)
In any case, the Air Trikes guy seems to have a great reputation.
Charlie
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