Today's Message Index:
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1. 04:57 AM - Re: RV8A turbine engine (Gordon and Marge)
2. 08:02 PM - Re: RV8A turbine engine (Doug Ritter)
Message 1
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| Subject: | RV8A turbine engine |
--> Engines-List message posted by: "Gordon and Marge" <gcomfo@tc3net.com>
-----Original Message-----
From: owner-engines-list-server@matronics.com
[mailto:owner-engines-list-server@matronics.com] On Behalf Of Doug
Ritter
Subject: RE: Engines-List: RV8A turbine engine
--> Engines-List message posted by: Doug Ritter <d.d.ritter@verizon.net>
Thanks Gordon for your replay and thank you to all the other replies I
have
received.
You are correct with the specs on the Allison B17C (420 shp) but what I
have in mind is the smaller 250 B15A or 15G at 317 shp with a fuel rate
of
.697 lbs/shp/hr (apx 18-20 gph). If I convert the forward baggage of
the
8A to a fuel tank I can get 20 gals more and if I pump the wing tanks
into
it I can keep the CG in spec considering the less weight (180 lbs
compared
to 386 for a dinosaur Lycoming). The length is the same, 45 inches but
I
will still need to redesign the cowl to a nice taper. With extra fuel I
should get my range back plus. I don't want to push the RV beyond the
speed limit but that limit needs to be determined. Needless to say I
don't
want to burst my eardrums by phoning Van's for advice. My mentor is the
Beach A36 conversion being done by Trade Wind Aviation
(http://www.tradewind-bonanza.com/index.html) although they are using
the
B17C as you mentioned. As far as the cost is concerned - the helicopter
version (C18 or T63 700A military turboshaft) are as low as $10k with up
to
1k TBO left and seem to be readily available. My problem is that I have
not been able to locate the turboprop version (B15) anywhere. They are
the
same engine except one is turned upside down to the other and the
plumbing
is a little different. But I would need the prop reduction gearbox that
bolts onto the shaft output. Any leads?
There are so many pluses and negatives to this turbine approach but my
desire is to climb like a screaming banshee, to fly at 18k over the
Rockiest, to be a sensation at air shows and have a hell of a lot of
fun
in my little fighter plane. (I'm 59 going on 18)
Doug: I say "go for it". If the fuel consumption is acceptable there
is little doubt the performance will be hard to beat. I'm sorry I
cannot help much with the hardware. There used to be a company in the
Indianapolis, IN area that dealt in turbines but I don't know if they
had gearboxes or if they just had helicopter takeouts such as you
describe. Keep us posted. It should be great fun if you can pull it
off. You probably know that DeltaHawk plans to develop an 8 cyl engine
that will be able to 3-400hp for about the weight of a 6 cyl angle valve
Lyc, but that is a ways out.
Gordon
Message 2
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| Subject: | RV8A turbine engine |
--> Engines-List message posted by: Doug Ritter <d.d.ritter@verizon.net>
Yes, that company is Avon Aero in Danville, Indiana and they have T63 for
around 13K. I'm in touch with them. I'm also very familiar with the folks
at DeltaHawk. They have a great product that is also on my list. I'm a TV
program producer at NASA-TV in Wash., DC and I did a show about NASA at
AirVenture 2003 last summer where I interview DeltaHawk's president Diane
Doers. They are a great bunch of people producing a terrific product and I
do believe they are going to make it. But they are a small family owned
company and could be overwhelmed my one of the big guys if they decide to
get into the diesel business. My half hour show is on NASA-TV every
weekend night at 7 PM EST (except during Mars missions) and seen on
DirecTV, Dish satellite and cable systems all over the country.
At 07:56 AM 1/23/2004 -0500, you wrote:
>--> Engines-List message posted by: "Gordon and Marge" <gcomfo@tc3net.com>
>
>
>-----Original Message-----
>From: owner-engines-list-server@matronics.com
>[mailto:owner-engines-list-server@matronics.com] On Behalf Of Doug
>Ritter
>To: engines-list@matronics.com
>Subject: RE: Engines-List: RV8A turbine engine
>
>
>--> Engines-List message posted by: Doug Ritter <d.d.ritter@verizon.net>
>
>Thanks Gordon for your replay and thank you to all the other replies I
>have
>received.
>
>You are correct with the specs on the Allison B17C (420 shp) but what I
>have in mind is the smaller 250 B15A or 15G at 317 shp with a fuel rate
>of
>.697 lbs/shp/hr (apx 18-20 gph). If I convert the forward baggage of
>the
>8A to a fuel tank I can get 20 gals more and if I pump the wing tanks
>into
>it I can keep the CG in spec considering the less weight (180 lbs
>compared
>to 386 for a dinosaur Lycoming). The length is the same, 45 inches but
>I
>will still need to redesign the cowl to a nice taper. With extra fuel I
>
>should get my range back plus. I don't want to push the RV beyond the
>speed limit but that limit needs to be determined. Needless to say I
>don't
>want to burst my eardrums by phoning Van's for advice. My mentor is the
>
>Beach A36 conversion being done by Trade Wind Aviation
>(http://www.tradewind-bonanza.com/index.html) although they are using
>the
>B17C as you mentioned. As far as the cost is concerned - the helicopter
>
>version (C18 or T63 700A military turboshaft) are as low as $10k with up
>to
>1k TBO left and seem to be readily available. My problem is that I have
>
>not been able to locate the turboprop version (B15) anywhere. They are
>the
>same engine except one is turned upside down to the other and the
>plumbing
>is a little different. But I would need the prop reduction gearbox that
>
>bolts onto the shaft output. Any leads?
>There are so many pluses and negatives to this turbine approach but my
>desire is to climb like a screaming banshee, to fly at 18k over the
>Rockiest, to be a sensation at air shows and have a hell of a lot of
>fun
>in my little fighter plane. (I'm 59 going on 18)
>
>Doug: I say "go for it". If the fuel consumption is acceptable there
>is little doubt the performance will be hard to beat. I'm sorry I
>cannot help much with the hardware. There used to be a company in the
>Indianapolis, IN area that dealt in turbines but I don't know if they
>had gearboxes or if they just had helicopter takeouts such as you
>describe. Keep us posted. It should be great fun if you can pull it
>off. You probably know that DeltaHawk plans to develop an 8 cyl engine
>that will be able to 3-400hp for about the weight of a 6 cyl angle valve
>Lyc, but that is a ways out.
>
>Gordon
>
>
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