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Re: Europa-List: 914 / Woodcomp / fuel consumption ... ??

Subject: Re: Europa-List: 914 / Woodcomp / fuel consumption ... ??
From: Robert Borger <rlborger@mac.com>
Date: Tue, 9 Sep 2014 10:47:30
Michel,

WRT Roland=92s recent comment on weight -- For my Ruidoso trip I was 
very light.  Just myself, the aircraft cover & a small bag.  Probably 
200 lbs below MTOW.

Blue skies & tailwinds,
Bob Borger
Europa XS Tri, Rotax 914, Airmaster C/S Prop (75 hrs).
Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP
3705 Lynchburg Dr.
Corinth, TX  76208-5331
Cel: 817-992-1117
rlborger@mac.com

On Sep 9, 2014, at 9:58 AM, AUVRAY Michel <mau11@orange.fr> wrote:

Many thanks Bob

Michel AUVRAY


Le 09/09/2014 16:48, Robert Borger a =E9crit :
> Hello Michel,
> 
> That was at 8500 ft.  Ruidoso airport elevation it 6814 ft and traffic 
pattern altitude is 7900 ft and you have to clear some high ground to 
get in.  TAS was over 130 kts and ground speed was 145 kts with an 
unusual wind out of the east.
> 
> Blue skies & tailwinds,
> Bob Borger
> Europa XS Tri, Rotax 914, Airmaster C/S Prop (75 hrs).
> Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP
> 3705 Lynchburg Dr.
> Corinth, TX  76208-5331
> Cel: 817-992-1117
> rlborger@mac.com
> 
> On Sep 9, 2014, at 9:26 AM, AUVRAY Michel <mau11@orange.fr> wrote:
> 
> Hello Bob,
> What altitude do you check
> Le 09/09/2014 16:22, Robert Borger a =E9crit : 5000rpm and 30" 120 kt 
?
> Many thanks
> Michel AUVRAY
>> Hi Gert & others,
>> 
>> On a recent trip to Ruidoso, NM I set =93cruise" on my Airmaster 
(5000 rpm) & 30=94 MP which resulted in 120 kts IAS with a fuel flow of 
~5 gph (~19 lph). This is with a tri-gear & no speed kit installed.  If 
I ever get around to installing the wheel pants & gear leg fairings it 
will probably be faster at the same fuel flow or I can cruise at the 
same speed for a lower fuel flow.  
>> 
>> I have heard that Rotax recommends not cruising at an rpm below 5000. 
 I don=92t know how critical that may be.
>> 
>> FWIW, a Grumman Tiger landed behind me followed me to the pumps.  The 
copilot (pilot=92s wife) said they ware cruising at 120 kts & burning 12 
gph (54.4 lph).
>> 
>> Blue skies & tailwinds,
>> Bob Borger
>> Europa XS Tri, Rotax 914, Airmaster C/S Prop (75 hrs).
>> Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP
>> 3705 Lynchburg Dr.
>> Corinth, TX  76208-5331
>> Cel: 817-992-1117
>> rlborger@mac.com
>> 
>> On Sep 8, 2014, at 11:51 PM, Gert Dalgaard S=F8rensen 
<stabelvej9@gmail.com> wrote:
>> 
>> Hi Ivan - and others
>> 
>> Two years ago I had opportunity to purchase a brand new 914, and a 
Woodcomp at a very reasonably price.
>> Changed engine last summer after 700 hours og trouble free flying 
with the old constellation.
>> With the old set-up  - 914/Warp Drive  -  i did 105 knots at 4600 
rpm, burning 16.5 ltrs./hr.
>> At that power setting my old engine/prop really sounded like it could 
run for a thousand year - must be the "sweet spot", Ivan  :)
>> 
>> My new engine and prop. really sounds and feel OK at 4200 rpm / 30", 
and that is giving me exactly 120 knots IAS.
>> But again - this prop. is a completely new world for me ...
>> What power-setting are others aiming for at cruise with a 914 and 
adjustable prop?
>> And what fuel-flow do you get?
>> 
>> Regards 
>> Gert
>> 
>> 
>> 
>> Den 08/09/2014 kl. 18.22 skrev Ivan Shaw <ivanshaw@btinternet.com>:
>> 
>>> Gert,
>>> I would not run 4200rpm and 30=94=85.sounds a bit over square to me.
>>> Best way to get your fuel burn info is by test on =91your=92 
particular aircraft. Then arrive at a nice economy cruise speed/fuel 
burn and a regular cruise speed.
>>> Remember you want to cruise your Europa =91on the step=92 AOA wise 
and this will vary with aircraft weight and differing aircraft. But at 
MTOW you want to be going 120kts indicated minimum to be nicely in the 
groove.
>>> Most aircraft have a =91sweet spot=92 speed wise when the aircraft 
just =91feels=92 right!! Find the sweet spot for YOUR aircraft and 
cruise there=85.why would you do any other?!!
>>>  
>>> Cheers
>>> Ivan
>>>  
>>> From: owner-europa-list-server@matronics.com 
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Gert 
Dalgaard S=F8rensen
>>> Sent: 08 September 2014 16:05
>>> To: Europa-List Digest Server
>>> Subject: Europa-List: 914 / Woodcomp / fuel consumption ... ??
>>>  
>>> Hi
>>>  
>>> Could someone show me where I can find figures for the fuel 
consumption on my 914 when let us say I go 4.200 rpm / 30" MP  ...  ???
>>> All I can find is the graphics in Owners Manual and do. graphs. on 
other Rotax enclosures, but the MP is not an item as far as I can see.
>>>  
>>> Regards Gert
>>> OY-GDS
>>> Mono/914/Woodcomp
>>>  
>>>  
>>> <image001.png>
>> 
>> 
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