REFLECTOR: Deltahawk engine

[Grigore Rosu]

Hoop,

Yes, those are the reasons for which I also decided upon a DH engine. 
Additionally, I intend to eventually return to Europe (I'm currently in 
the US, but I'm originaly from Romania), where the price of 100LL is 
prohibitive ($9 per galon!)

It is a pitty that we do not have more evaluation data regarding the DH 
engines, especially data comming from a different company or customer.  It 
will probably happen soon.  I saw a DH180 at the Velocity center, which 
will go soon in a Velocity UAV; hopefully Velocity will provide us with 
some insightful feedback once they do it.

Grigore

On Tue, 4 Oct 2005, Phil Hooper wrote:

> Grigore, I'll respond too lately...I'm shamed for waiting soooo long.  I too
> am interested in the Delta Hawk, building an XL RG.  I know it is way too
> early for me as well.  The only issues to consider that I can see are the
> oil cooler, reinforcements along the firewall for engine mounts, and the
> NACA scoops.  You have plenty of time!!!  I'm particularly interested in the
> ~300hp version.  They say they will make it by adding two more cylinders to
> the basic design, and claim they are about 12 months away.  My biggest
> concern is to not be the beta tester.  Greg is right that several are
> watching the DeltaH.  With the price of 100 spiking, it seems more and more
> attractive.  What I really like is the simplicity, no Fadec, mixture, and
> full power to 18k. I'd just like to see the platform proven over a long
> period of time.  Let's keep one another posted if we hear any developments.
>
> Hoop
>
> -----Original Message-----
> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
> Behalf Of Greg Poole
> Sent: Tuesday, October 04, 2005 6:36 PM
> To: 'Velocity Aircraft Owners and Builders list'
> Subject: RE: REFLECTOR: Deltahawk engine
>
> Hi & welcome to the fold Grigore,
>
> Had not noticed that nobody had replied to you so....I amongst many others
> on this list also remain interested in the DeltaHawk (the inverted unit with
> the intercooler is of real interest).
>
> I think you were spot on with your comment that " It may be a bit too early
> for me to worry about the engine now" .You can certainly use that (the wait)
> to your advantage for the engine and avionics are really decisions for very
> late in the total build (my good mate Dave Black keeps hammering me on this
> one and the message has got through!).
>
>> From experience, Deltahawk will get the message out when the time is ripe
> so
> there is little use presupposing or second guessing anything.
>
>
> Greg in Sydney
> STd RG E
>
>
> -----Original Message-----
> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
> Behalf Of Grigore Rosu
> Sent: Saturday, 1 October 2005 10:48 PM
> To: Velocity Aircraft Owners and Builders list
> Subject: Re: REFLECTOR: Deltahawk engine
>
> Hello,
>
> I have just received my kit (SEFG) from Velocity a couple of days ago, now
> going over the inventory and garage space ... very exciting.  Unbelievable
> how many airplane-unrelated things one can keep in a garage.  The car
> seems to take a lot of precious space; out with it!
>
> I am still seriously thinking of putting a diesel Deltahawk engine on my
> airplane.  It may be a bit too early for me to worry about the engine now,
> but I was wondering whether there were any new developments regarding the
> DH engines, or whether any of you has already installed and flight-test
> one.   When I was at Velocity during the head-start program (mid-August),
> they had one DH engine there.  Therefore, I'm assuming that perhaps others
> may have also received their engine, maybe even tested them.
>
> BTW, Europe's SMA revived and they are slowly entering the US market with
> their engines.  Unfortunately, their 230HP does not seem to fit well our
> Velocities (too heavy for Standard, too little power for XL).  Besides
> that, it seems to be very expensive (>$70k with prop) ...
>
> Grigore
>
>
> On Thu, 5 May 2005, Douglas Holub wrote:
>
>> Welcome Grigore!
>>
>> I think that you will find that many on this list are skeptical about the
>> advantages of the DeltaHawk diesel, but I am not one of them. It is 35%
> more
>> fuel efficient than the IO-360, plus smoother, quieter, and simpler. The
>> "A4" versions allow a much more steamlined cowl than the IO-360. It has
>> single lever power control with no mixture or carb heat and no complicated
>> FADEC. It represents the most significant advancement in general aviation
>> power plants in 70 years.
>>
>> I am a little undecided about which model to use in my top-door, FG
>> Velocity. The Velocity was originally designed for a 160 hp engine, and it
>> looks like the DH160V4 will push the airplane faster than an IO-360 does,
> so
>> it is definitely an option.  But for just a little more money and no
>> additional weight, the DH180V4 would give you a higher cruise speed or a
>> shorter take off roll with a fixed pitch prop.  I'm probably going to buy
>> the DH180A4.  For only an additional 15 pounds of weight and some more
> money
>> you can get the DH200A4. The extra weight comes from the intercooler.  I
>> think it is probably overkill, and I like to keep things lighter and
>> simpler. But an extra 20 hp for only 15 lbs is a pretty good deal.
>>
>> Doug Holub
>> top door, FG, 70% done, I'm going to complete the airframe in 2006 or die
>> trying
>> ----- Original Message -----
>> From: "Grigore Rosu" <grosu at cs.uiuc.edu>
>> To: <reflector at tvbf.org>
>> Sent: Thursday, May 05, 2005 10:01 AM
>> Subject: REFLECTOR: Deltahawk engine
>>
>>
>>> I am perhaps the latest member of the list (just received the
>>> confirmation of my order for a Velocity SE/FG a few days ago), so please
>>> let me start with a warm hello to all the enthusiastic Velocity Builders!
>>>
>>> I am living and flying in Illinois (Champaign-Urbana area), but I am
>>> originally from Romania.  I intend to move back to Europe in a few years,
>>> so I am 99% decided to go for a Deltahawk engine (as you may all know, in
>>> Europe the price of AVGAS is prohibitive).  I am also very impressed with
>>> the latest comparison data between the DH160V4 engine and the Lycoming
>>> IO-360, so it looks like a DH engine may be a very good choice even for
>>> one flying one's Velocity all the time in the USA ... (see
>>> http://www.deltahawkengines.com/perfor00.shtml).
>>>
>>> Are there builders on this list who are seriously considering a DH
> engine?
>>>
>>> Can anybody comment a bit on the three possibile DH engines, namely the
>>> DH160V4, DH180V4, and DH200V4?  According to Deltahawk's data, a DH160V4
>>> sounds like just good enough for a Velocity SE/FG.  However, a DH180V4
>>> also seems very attractive.  Also, what would the REAL difference between
>>> the three engines be in the case of a Velocity SE/FG (ignoring the
> price)?
>>>
>>> Thank you,
>>> Grigore
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>>
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