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ttweedy
Joined: 16 Dec 2011
Posts: 1
Location: United States
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 Posted: Mon Aug 20, 2012 11:46 am Post subject: Is Rotax 80 hp enough? |
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Hi,
I'm looking at a used 701 with a Rotax UL 80hp.I welcome opinions on whether or not this engine is adequate for the STOL performance for which the 701 is designed.The plane is a 1100# MTOW model.
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dougsnash
Joined: 14 Apr 2008
Posts: 281
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| Posted: Mon Aug 20, 2012 12:11 pm Post subject: Is Rotax 80 hp enough? |
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I have the 80 hp 912/ 3 blade warp on my 701 and it is adaquate on wheels. I'm surrounded by water and plan on building a set of amphibs in a year or two and will have to upgrade the powerplant before I try flying two-up with floats. Lets face it, there is no such thing as enough power on a float plane.
What would I gain with the 100hp? Probably a couple of MPH in cruise and might get off the ground a little faster when heavy. I would not rule out a 701 just because it only had the 80hp. The 80hp is actually a better engine than the 100hp, not as hard on the airframe. Yes, it has less power but is thus a bit smoother.
I guess it really depends on what you are trying to do with the plane. I think you'll find both engines give pretty good STOL performance on the 701.
Doug M
CH-701 from scratch
NW Ontario, Canada
From: ttweedy <ttweedy1954(at)gmail.com>
To: zenith701801-list(at)matronics.com
Sent: Monday, August 20, 2012 2:46:21 PM
Subject: Is Rotax 80 hp enough?
--> Zenith701801-List message posted by: "ttweedy" <ttweedy1954(at)gmail.com (ttweedy1954(at)gmail.com)>
Hi,
I'm looking at a used 701 with a Rotax UL 80hp.I welcome opinions on whether or not this engine is adequate for the STOL performance for which the 701 is designed.The plane is a 1100# MTOW model.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=381391#381391
http://forums.matronics.com</ -Mats.com/contribution" =======
[quote][b]
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ronlee
Joined: 25 Dec 2006
Posts: 141
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| Posted: Mon Aug 20, 2012 12:33 pm Post subject: Re: Is Rotax 80 hp enough? |
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One consideration is the mandatory use of 91+ octane fuel in the 100 hp if using auto gas and Rotax wants it fresh and in season. Not many cars today really need premium fuel so it can be a bit hard to get it fresh in a small town. I live near a couple of retirement communities where there are a lot of high end cars that use premium, so it's not a problem for me. Where my plane is hangared, which is a small town someone bought premium for their Rotax powered gyro and when they started dumping it in the plane it stunk and was like lumpy. With the 80 HP you can use regular.
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Ron Lee
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Tommy Walker
Joined: 12 Jan 2006
Posts: 442
Location: Anniston, AL 36207
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| Posted: Mon Aug 20, 2012 1:13 pm Post subject: Is Rotax 80 hp enough? |
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Personally, I think the 100 hp Rotax is almost too much for the 701. That is, if you can have too much horsepower.
On Mon, Aug 20, 2012 at 2:46 PM, ttweedy <ttweedy1954(at)gmail.com (ttweedy1954(at)gmail.com)> wrote:
[quote]--> Zenith701801-List message posted by: "ttweedy" <ttweedy1954(at)gmail.com (ttweedy1954(at)gmail.com)>
Hi,
I'm looking at a used 701 with a Rotax UL 80hp.I welcome opinions on whether or not this engine is adequate for the STOL performance for which the 701 is designed.The plane is a 1100# MTOW model.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=381391#381391
===========
-List" target="_blank">http://www.matronics.com/Navigator?Zenith701801-List
===========
http://forums.matronics.com
===========
le, List Admin.
="_blank">http://www.matronics.com/contribution
===========
[b]
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_________________
Tommy Walker
N25A - Anniston, AL |
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sonar1@cox.net
Joined: 02 Oct 2007
Posts: 55
Location: Santa Barbara, Ca
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| Posted: Mon Aug 20, 2012 1:50 pm Post subject: Re: Is Rotax 80 hp enough? |
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I have had the 80 hp for 5 years, and have never wanted or needed anything larger. Uses regular gas, and it really is a short takeoff plane.
This video on YouTube which has gotten 10,000 hits shows a no-wind 80 hp takeoff at 1000 foot elevation. I did not rotate until 50 mph. Could have rotated much sooner (35).
http://www.youtube.com/watch?v=BQ3XEDrGJQs&list=UUa96-6jPxciXbixBk9eTjew&index=9&feature=plcp
Fred
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craig(at)craigandjean.com
Guest
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| Posted: Mon Aug 20, 2012 2:13 pm Post subject: Is Rotax 80 hp enough? |
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Also depends on what altitudes you intend to fly at. My home airport is at about 6ooo ft and is surrounded by 10 to 11 thousand foot peaks.
-- Craig
From: owner-zenith701801-list-server(at)matronics.com [mailto:owner-zenith701801-list-server(at)matronics.com] On Behalf Of Tommy Walker
Sent: Monday, August 20, 2012 2:13 PM
To: zenith701801-list(at)matronics.com
Subject: Re: Is Rotax 80 hp enough?
Personally, I think the 100 hp Rotax is almost too much for the 701. That is, if you can have too much horsepower.
On Mon, Aug 20, 2012 at 2:46 PM, ttweedy <ttweedy1954(at)gmail.com (ttweedy1954(at)gmail.com)> wrote:
--> Zenith701801-List message posted by: "ttweedy" <ttweedy1954(at)gmail.com (ttweedy1954(at)gmail.com)>
Hi,
I'm looking at a used 701 with a Rotax UL 80hp.I welcome opinions on whether or not this engine is adequate for the STOL performance for which the 701 is designed.The plane is a 1100# MTOW model.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=381391#381391
===========
-List" target="_blank">http://www.matronics.com/Navigator?Zenith701801-List
===========
http://forums.matronics.com
===========
le, List Admin.
="_blank">http://www.matronics.com/contribution
===========
| Quote: | | http://www.matronics.com/Navigator?Zenith701801-List |
01234567
[quote][b]
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ggower_99(at)yahoo.com
Guest
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| Posted: Mon Aug 20, 2012 4:10 pm Post subject: Is Rotax 80 hp enough? |
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I fly similar altitudes like Craig does... And sincerely, In some very few particular occasions, I will love to have a 914, and also a foot more span in each wing will also help... 
But I think there are too much gadgets to go wrong in the 914...
I rather fly, planning out in advance with the 100 hp.
About 400 hrs with no problems, only the normal mantainance and fun...
Gary.
From: Craig Payne <craig(at)craigandjean.com>
To: zenith701801-list(at)matronics.com
Sent: Monday, August 20, 2012 5:12 PM
Subject: RE: Is Rotax 80 hp enough?
Also depends on what altitudes you intend to fly at. My home airport is at about 6ooo ft and is surrounded by 10 to 11 thousand foot peaks.
-- Craig
From: owner-zenith701801-list-server(at)matronics.com [mailto:owner-zenith701801-list-server(at)matronics.com] On Behalf Of Tommy Walker
Sent: Monday, August 20, 2012 2:13 PM
To: zenith701801-list(at)matronics.com
Subject: Re: Is Rotax 80 hp enough?
Personally, I think the 100 hp Rotax is almost too much for the 701. That is, if you can have too much horsepower.
On Mon, Aug 20, 2012 at 2:46 PM, ttweedy <ttweedy1954(at)gmail.com (ttweedy1954(at)gmail.com)> wrote:
--> Zenith701801-List message posted by: "ttweedy" <ttweedy1954(at)gmail.com (ttweedy1954(at)gmail.com)>
Hi,
I'm looking at a used 701 with a Rotax UL 80hp.I welcome opinions on whether or not this engine is adequate for the STOL performance for which the 701 is designed.The plane is a 1100# MTOW model.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=381391#381391
===========
-List" target="_blank">http://www.matronics.com/Navigator?Zenith701801-List
===========
http://forums.matronics.com
===========
le, List Admin.
="_blank">http://www.matronics.com/contribution
===========
| Quote: | | http://www.matronics.com/Navigator?Zenith701801-List |
01234567
8
[quote][b]
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ggower_99(at)yahoo.com
Guest
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| Posted: Mon Aug 20, 2012 4:14 pm Post subject: Is Rotax 80 hp enough? |
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The big diference is in climb, and in high landing strips, highr cruise speed is not a goal, is Not a racing airplane...
Gary.
From: MacDonald Doug <dougsnash(at)yahoo.com>
To: "zenith701801-list(at)matronics.com" <zenith701801-list(at)matronics.com>
Sent: Monday, August 20, 2012 3:11 PM
Subject: Re: Is Rotax 80 hp enough?
I have the 80 hp 912/ 3 blade warp on my 701 and it is adaquate on wheels. I'm surrounded by water and plan on building a set of amphibs in a year or two and will have to upgrade the powerplant before I try flying two-up with floats. Lets face it, there is no such thing as enough power on a float plane.
What would I gain with the 100hp? Probably a couple of MPH in cruise and might get off the ground a little faster when heavy. I would not rule out a 701 just because it only had the 80hp. The 80hp is actually a better engine than the 100hp, not as hard on the airframe. Yes, it has less power but is thus a bit smoother.
I guess it really depends on what you are trying to do with the plane. I think you'll find both engines give pretty good STOL performance on the 701.
Doug M
CH-701 from scratch
NW Ontario, Canada
From: ttweedy <ttweedy1954(at)gmail.com>
To: zenith701801-list(at)matronics.com
Sent: Monday, August 20, 2012 2:46:21 PM
Subject: Is Rotax 80 hp enough?
--> Zenith701801-List message posted by: "ttweedy" <ttweedy1954(at)gmail.com (ttweedy1954(at)gmail.com)>
Hi,
I'm looking at a used 701 with a Rotax UL 80hp.I welcome opinions on whether or not this engine is adequate for the STOL performance for which the 701 is designed.The plane is a 1100# MTOW model.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=381391#381391
http://forums.matronics.com</ -Mats.com/contribution" =======
[quote]f="http://www.matronics.com/Navigator?Zenith701801-List">http://www.matro="nofollow" target="_blank" href="http://forums.matronics.com/">http:/www.matronics.com/contribution">http://www.matronics.com/contribution============
[b]
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n801bh(at)netzero.com
Guest
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| Posted: Mon Aug 20, 2012 4:52 pm Post subject: Is Rotax 80 hp enough? |
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You can have TOO much horsepower... Don't ask how I know..<GG>
do not archive
Ben Haas
N801BH
www.haaspowerair.com
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Tommy Walker
Joined: 12 Jan 2006
Posts: 442
Location: Anniston, AL 36207
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| Posted: Mon Aug 20, 2012 5:05 pm Post subject: Is Rotax 80 hp enough? |
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Ben, are you still flying that ford powered chariot? That was the ultimate 801...
Beautiful plane too, if a 701/801 can be considered good looking.... Sort of like a camel.....
Tommy
Sent from my iPad
On Aug 21, 2012, at 12:50 AM, "n801bh(at)netzero.com (n801bh(at)netzero.com)" <n801bh(at)netzero.com (n801bh(at)netzero.com)> wrote:
[quote]
You can have TOO much horsepower.. Don't ask how I know..<GG>
do not archive
Ben Haas
N801BH
www.haaspowerair.com
--------
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_________________
Tommy Walker
N25A - Anniston, AL |
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n801bh(at)netzero.com
Guest
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| Posted: Mon Aug 20, 2012 5:19 pm Post subject: Is Rotax 80 hp enough? |
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Yup......
Coming up on 500 hours and it still has not killed me............. yet..(:>)
do not archive.
Ps.. I LOVE my toy......
Ben Haas
N801BH
www.haaspowerair.com
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dougsnash
Joined: 14 Apr 2008
Posts: 281
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| Posted: Mon Aug 20, 2012 5:41 pm Post subject: Is Rotax 80 hp enough? |
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Yes Ben but that's just cause you're crazy... but in a good kind of way.
Gotta love that Ford power.
Doug M
From: "n801bh(at)netzero.com" <n801bh(at)netzero.com>
To: zenith701801-list(at)matronics.com
Sent: Monday, August 20, 2012 7:50:02 PM
Subject: Re: Is Rotax 80 hp enough?
You can have TOO much horsepower... Don't ask how I know..<GG>
do not archive
Ben Haas
N801BH
www.haaspowerair.com
--------
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