Earthstar Forums

I don't see a lot of feedback from HKS turbo owners.
It would be nice to hear some reports from people who actually fly with them, and hear of any bugs to over come.
The HKS Yahoo group seem to be mostly talking about the HKS 60 horse version.
Does anyone know how many are flying in north America?
Thanks
Fred

Me too. How nice could it be to have consistent 80 HP up to 10,000 feet
at 2.5 ghp?

Skot



In a message dated 10/24/2011 4:24:07 P.M. Central Daylight Time,
gayford@golden.net writes:

I don't see a lot of feedback from HKS turbo owners.
It would be nice to hear some reports from people who actually fly with
them, and hear of any bugs to over come.
The HKS Yahoo group seem to be mostly talking about the HKS 60 horse
version.
Does anyone know how many are flying in north America?
Thanks
Fred



------------------------------------

Yahoo! Groups Links

In a message dated 10/24/2011 2:24:12 PM Pacific Daylight Time,
gayford@golden.net writes:

I don't see a lot of feedback from HKS turbo owners.
It would be nice to hear some reports from people who actually fly with
them, and hear of any bugs to over come.
The HKS Yahoo group seem to be mostly talking about the HKS 60 horse
version.
Does anyone know how many are flying in north America?
Thanks
Fred




Hi Fred
We have 2 of them. One on a Gull 2000 and the other on an Odyssey. The Gull
2000 has about 30 hrs and the Odyssey has over 170, I flew this one to
Arlington, WA, 2000 mi round trip and to Oshkosh 5000 mi round trip I did
testing with the HKS tecnition and made 7 trips to 17,500 feet in one day doing
calibration work to the computer.
It is a real go getter and has a lot of power for the weight it has more
power at cursing altitude than the 912s.
There are about 12 flying in the us that I know of.
Happy flying
Mark

Hi Mark
Thanks. That is exactly the kind of feed back I am looking for. More power in cruise than a 912s thats great news I believe you installed some of these engines on customer planes. How are they making out?
Fred

Hi Fred
There are 2 700T flying on the gulls. one is on an Odyssey with 170 hrs on
it and is performing really well,
I flew this one to Oshkosh.
The other is a Gull 2000 and it is a real rocket ship!
Happy Flying
Mark

In a message dated 10/30/2011 6:55:50 A.M. Pacific Daylight Time,
gayford@golden.net writes:




Hi Mark
Thanks. That is exactly the kind of feed back I am looking for. More power
in cruise than a 912s thats great news I believe you installed some of
these engines on customer planes. How are they making out?
Fred

--- In _Earthstar_Aircraft@yahoogroups.com_
(mailto:Earthstar_Aircraft@yahoogroups.com) , thundergul@... wrote:
>
>
> In a message dated 10/24/2011 2:24:12 PM Pacific Daylight Time,
> gayford@... writes:
>
> I don't see a lot of feedback from HKS turbo owners.
> It would be nice to hear some reports from people who actually fly with
> them, and hear of any bugs to over come.
> The HKS Yahoo group seem to be mostly talking about the HKS 60 horse
> version.
> Does anyone know how many are flying in north America?
> Thanks
> Fred
>
>
>
>
> Hi Fred
> We have 2 of them. One on a Gull 2000 and the other on an Odyssey. The
Gull
> 2000 has about 30 hrs and the Odyssey has over 170, I flew this one to
> Arlington, WA, 2000 mi round trip and to Oshkosh 5000 mi round trip I
did
> testing with the HKS tecnition and made 7 trips to 17,500 feet in one
day doing
> calibration work to the computer.
> It is a real go getter and has a lot of power for the weight it has more
> power at cursing altitude than the 912s.
> There are about 12 flying in the us that I know of.
> Happy flying
> Mark
>

Hi Mark
It just sunk in.Did I read right? The HKS Turbo engine rated at 80 hp has more cruising horspower than a Rotax 912S with 100hp?
Fred

Even though the question is addressed at Mark, I will answer it for you

A normal aspirated internal combustion engine losses power at the rate of
3% per each 1,000 feet of density altitude starting at sea level, std
pressure, std humidity and a temperature of 15 Celsius

Mark stated that at *cruising altitude* the HKS turbo puts out more power
than a 912S which is very true

100 Hp at sea level and ISA conditions becomes, just 76 HP at 8,000 feet of
altitude and ISA temp ( -1 degree Celsius at that altitude )

Every 8 degrees C that the temperature is above the ISA table equals 1,000
feet of additional density altitude, so it is very common that at even
5,000 feet altitude your density altitude becomes 8,000 feet ( at 29
degrees C you have 8,000 density altitude ) and you are down to 76 Hp

Thus, a turbocharger, which is meant, precisely, to maintain power up to a
certain density-altitude can make that much of a difference, because the
power output does not decrease, until after a certain altitude

Thank you Jaime, very well put.
Happy Flying,
Mark


In a message dated 11/2/2011 2:14:41 P.M. Pacific Daylight Time,
jaime.g.sada@gmail.com writes:




Even though the question is addressed at Mark, I will answer it for you


A normal aspirated internal combustion engine losses power at the rate of
3% per each 1,000 feet of density altitude starting at sea level, std
pressure, std humidity and a temperature of 15 Celsius


Mark stated that at cruising altitude the HKS turbo puts out more power
than a 912S which is very true


100 Hp at sea level and ISA conditions becomes, just 76 HP at 8,000 feet
of altitude and ISA temp ( -1 degree Celsius at that altitude )


Every 8 degrees C that the temperature is above the ISA table equals 1,000
feet of additional density altitude, so it is very common that at even
5,000 feet altitude your density altitude becomes 8,000 feet ( at 29 degrees C
you have 8,000 density altitude ) and you are down to 76 Hp


Thus, a turbocharger, which is meant, precisely, to maintain power up to a
certain density-altitude can make that much of a difference, because the
power output does not decrease, until after a certain altitude

Yes, it has more power to climb also at altitude.
Happy Flying
Mark


In a message dated 11/2/2011 1:44:35 P.M. Pacific Daylight Time,
gayford@golden.net writes:




Hi Mark
It just sunk in.Did I read right? The HKS Turbo engine rated at 80 hp has
more cruising horspower than a Rotax 912S with 100hp?
Fred

--- In _Earthstar_Aircraft@yahoogroups.com_
(mailto:Earthstar_Aircraft@yahoogroups.com) , thundergul@... wrote:
>
>
> In a message dated 10/24/2011 2:24:12 PM Pacific Daylight Time,
> gayford@... writes:
>
> I don't see a lot of feedback from HKS turbo owners.
> It would be nice to hear some reports from people who actually fly with
> them, and hear of any bugs to over come.
> The HKS Yahoo group seem to be mostly talking about the HKS 60 horse
> version.
> Does anyone know how many are flying in north America?
> Thanks
> Fred
>
>
>
>
> Hi Fred
> We have 2 of them. One on a Gull 2000 and the other on an Odyssey. The
Gull
> 2000 has about 30 hrs and the Odyssey has over 170, I flew this one to
> Arlington, WA, 2000 mi round trip and to Oshkosh 5000 mi round trip I
did
> testing with the HKS tecnition and made 7 trips to 17,500 feet in one
day doing
> calibration work to the computer.
> It is a real go getter and has a lot of power for the weight it has more
> power at cursing altitude than the 912s.
> There are about 12 flying in the us that I know of.
> Happy flying
> Mark
>

Thanks Jamie
I didn't know how much of a difference it made.
I want the turbo more than ever now.
Fred