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zsmith3rd(at)earthlink.ne
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 Posted: Wed Dec 09, 2009 1:33 pm Post subject: 701 & smaller engine |
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DO NOT ARCHIVE
The original 701 had a 60-HP Rotax two-stroke engine. One flew with 40-HP (don't recall how far).
Folks demanded more speed, shorter takeoffs, etc.
Now we have three versions of the 912.......80, 100 & 115-HP hanging on recent 701 completions.
The new Zenith CH-750 can handle the O-200 engine, takes off in 12 feet/4 meters, cruises at 190 knots, lands in 20 feet, uses less than 1 liter of fuel per day, can be built in less than 10 hours by 200 people.
Next we'll have the Zenith version of the GeeBee Racer with a PT-6 engine, bomb racks, in-flight refueling probe, tail hook, crew-rest quarters, galley, stand-up lav, movies and free bailout money to finance the whole project.
If the original video is still on the Zenith website, you can see Chris Heintz flying the 60 HP version. This is the "old style" main gear, and if there are still some early photos on same site you will see the "inverted" 2-stroke Rotax.
Regards,
Zed/701/R912/90%/etc
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frank.goodnight(at)att.ne
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| Posted: Wed Dec 09, 2009 1:50 pm Post subject: 701 & smaller engine |
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On Dec 9, 2009, at 3:27 PM, Zed Smith wrote:
Thanks for your answer Zed, glad to hear it has been done .
Frank Goodnight
Brownsville, TX
do not archivwe
| Quote: |
>
DO NOT ARCHIVE
The original 701 had a 60-HP Rotax two-stroke engine. One flew with
40-HP (don't recall how far).
Folks demanded more speed, shorter takeoffs, etc.
Now we have three versions of the 912.......80, 100 & 115-HP hanging
on recent 701 completions.
The new Zenith CH-750 can handle the O-200 engine, takes off in 12
feet/4 meters, cruises at 190 knots, lands in 20 feet, uses less
than 1 liter of fuel per day, can be built in less than 10 hours by
200 people.
Next we'll have the Zenith version of the GeeBee Racer with a PT-6
engine, bomb racks, in-flight refueling probe, tail hook, crew-rest
quarters, galley, stand-up lav, movies and free bailout money to
finance the whole project.
If the original video is still on the Zenith website, you can see
Chris Heintz flying the 60 HP version. This is the "old style" main
gear, and if there are still some early photos on same site you will
see the "inverted" 2-stroke Rotax.
Regards,
Zed/701/R912/90%/etc
|
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dougsnash
Joined: 14 Apr 2008
Posts: 281
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| Posted: Wed Dec 09, 2009 2:35 pm Post subject: 701 & smaller engine |
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One thing to keep in mind about smaller engines in the 701 is that the original plane had only a 950 Lb gross weight and was much lighter. I suspect that the current SP model (1100LB GWT) would not perform well with only 60 HP.
Doug MacDonald
CH-701 Scratch Builder
NW Ontario, Canada
Do Not Archive
---
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vgstol(at)bigpond.net.au
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| Posted: Wed Dec 09, 2009 3:14 pm Post subject: 701 & smaller engine |
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That prototype 701 with the 50-HP 503 Rotax weighed 430 lb (195 kg) empty.At that weight the HKS would also have a chance of reasonable performance.
At the more typical minimum of 600 lb (272 kg) real weight these days, it'd be disappointing......
JG
On Thu, Dec 10, 2009 at 7:27 AM, Zed Smith <zsmith3rd(at)earthlink.net (zsmith3rd(at)earthlink.net)> wrote:
[quote] --> Zenith701801-List message posted by: Zed Smith <zsmith3rd(at)earthlink.net (zsmith3rd(at)earthlink.net)>
DO NOT ARCHIVE
The original 701 had a 60-HP Rotax two-stroke engine. One flew with 40-HP (don't recall how far).
Folks demanded more speed, shorter takeoffs, etc.
Now we have three versions of the 912.......80, 100 & 115-HP hanging on recent 701 completions.
The new Zenith CH-750 can handle the O-200 engine, takes off in 12 feet/4 meters, cruises at 190 knots, lands in 20 feet, uses less than 1 liter of fuel per day, can be built in less than 10 hours by 200 people.
Next we'll have the Zenith version of the GeeBee Racer with a PT-6 engine, bomb racks, in-flight refueling probe, tail hook, crew-rest quarters, galley, stand-up lav, movies and free bailout money to finance the whole project.
If the original video is still on the Zenith website, you can see Chris Heintz flying the 60 HP version. This is the "old style" main gear, and if there are still some early photos on same site you will see the "inverted" 2-stroke Rotax.
Regards,
Zed/701/R912/90%/etc
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