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[ Ken Hill ] : New Email List Photo Share Available!

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ami(at)mcfadyean.freeserv
Guest

Posted: Mon May 29, 2006 11:22 am Post subject: [ Ken Hill ] : New Email List Photo Share Available!

Ken,

Which make of propeller is it that you have shown in the photos and what 

performance figures (including fuel burn) is it returning?



Rgds.,

Duncan McF.

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paul.mcallister

Joined: 09 Jan 2006
Posts: 177
Location: Waukesha, WI USA

Posted: Mon May 29, 2006 2:50 pm Post subject: [ Ken Hill ] : New Email List Photo Share Available!

Ken,



Very sharp looking paint job !.  What kind of fuel tanks are you using for

your long rang fuel system ?



Paul



do not archive

Ken Hill

Joined: 08 Apr 2006
Posts: 6
Location: Pleasanton, CA

Posted: Sun Jun 04, 2006 3:23 pm Post subject: [ Ken Hill ] : New Email List Photo Share Available!

Duncan,

   

  I'm afraid this data will get rearranged but here it goes. This test was done at 5500'  at a max weight of 1450lbs.  with very little deviation from standard day temp.  Airspeeds are within 1 kt.  These airspeeds appear to stay constant up to 12,500 (the highest I've observed)

   

  1.   100kts, FF 3.8, RPM 4500, MF 25.

  2.   116kts, FF 5.0, RPM 4800, MF 28

  3.   129kts, FF 6.2, RPM 5000, MF 30

  4.   134kts, FF 7.6, RPM 5250, MF 33

  5.   140kts, FF 8.3, RPM 5500, MF 35

  6    148kts, FF 10,  RPM 5800, MF 40

   

  I'd appreciate if others would post there data.

   

  Ken

  



Duncan McFadyean <ami(at)mcfadyean.freeserve.co.uk> wrote:

  <BLOCKQUOTE class=replbq

Ken Hill

Joined: 08 Apr 2006
Posts: 6
Location: Pleasanton, CA

Posted: Sun Jun 04, 2006 3:43 pm Post subject: [ Ken Hill ] : New Email List Photo Share Available!

Hi Paul,

   

  The tanks are 6 gal. Evinrude Johnson "Duratank"  from the local boat dealer.  I use quick disconnect fittings from Europa and the pump is Facet 40105  from Aircraft Spruce. The tanks are strapped to the wing tie bar for restraint. 

   

  If you want to fly cross country this is the best mod you can make. 

   

  Ken



Paul McAllister <paul.mcallister(at)qia.net> wrote:

  

Ken,



Very sharp looking paint job !. What kind of fuel tanks are you using for

your long rang fuel system ?



Paul



do not archive

CraigEllison

Joined: 09 Jan 2006
Posts: 24
Location: Silverton, OR USA

Posted: Sun Jun 04, 2006 7:48 pm Post subject: [ Ken Hill ] : New Email List Photo Share Available!

Ken,

  

 Here are some proformance figures I've collected in  the first 14 hrs. on 5CN.  Bob Lindsay used the following for power  settings when he flew 5CN and having looked at the 914 Rotax engine book seems  correct.  Anyway these are what I used.

  

 55%  4300rpm/28MP

 65%  4800rpm/29MP

 75%   5000rpm/31MP

  

 The following were at standard temps or very close  to standard and at 1100lbs.

  

 1500ft.  55% 4300rpm/28MP     TAS 120KTS

 7000ft.   65% 4800rpm/29MP     TAS 134KTS

 7000ft.   75% 5000rpm/31MP     TAS 144KTS

 10000ft.75%  5000rpm/31MP     TAS  150KTS/138KIAS

  

 I used for calculation TAS a web site that Bob told  me about from REA Computing www.reacomp.com  .

  

 craig ellison

 N205CN

 14.6 hrs. having fun in phase 1  testing

 [quote]   ---

jodel(at)nildram.co.uk
Guest

Posted: Mon Jun 05, 2006 12:12 pm Post subject: [ Ken Hill ] : New Email List Photo Share Available!

I  think you figures might be a little suspect.  The Rotax 914 Operators  manual give Take off performance as 5800rpm, 39.9 inHG and 8.7 us gph.  Max  continuous as 5500rpm, 35.4 inHG and 7.2 us gph. (ref pages 8-2 &  10-1)

 Are  you sure that your fuel flowe sensor is correctly  calibrated?

  

 Are  these airspeeds IAS or TAS?

  

 Simon

 [quote]   

   --

daseitz(at)cfl.rr.com
Guest

Posted: Mon Jun 05, 2006 12:45 pm Post subject: [ Ken Hill ] : New Email List Photo Share Available!

I will get some definite numbers this weekend if weather permits.



Dean Seitz



--

Ken Hill

Joined: 08 Apr 2006
Posts: 6
Location: Pleasanton, CA

Posted: Mon Jun 05, 2006 9:24 pm Post subject: [ Ken Hill ] : New Email List Photo Share Available!

Hi Simon,

   

  I wish they were.  I recently put over 1000 miles on N214KS and the fuel required to fill the tank agreed to within .1/.2 gallons of what the gauge said I used.  Plugs look normal.

   

  Ken



Simon Smith <jodel(at)nildram.co.uk> wrote:

  [quote]    I think you figures might be a little suspect.  The Rotax 914 Operators manual give Take off performance as 5800rpm, 39.9 inHG and 8.7 us gph.  Max continuous as 5500rpm, 35.4 inHG and 7.2 us gph. (ref pages 8-2 & 10-1)

  Are you sure that your fuel flowe sensor is correctly  calibrated?

   

  Are these airspeeds IAS or TAS?

   

  Simon

  [quote]  

  --

paul.mcallister

Joined: 09 Jan 2006
Posts: 177
Location: Waukesha, WI USA

Posted: Tue Jun 06, 2006 4:21 am Post subject: [ Ken Hill ] : New Email List Photo Share Available!

These  flow flows are pretty similar to what I see on my 914 Mono.  I have a dual  sensor fuel flow on my EIS and over the last 400 hours I have found it  pretty well "nuts on" for accuracy. - Paul

 [quote]   --

garrys(at)tampabay.rr.com
Guest

Posted: Tue Jun 06, 2006 3:22 pm Post subject: [ Ken Hill ] : New Email List Photo Share Available!

I must be either lucky, or I'm running too low a  power setting.  With 450 hours under my belt on my 914 tri,  the  average is 4.3 US GPH (mogas).  I usually cruise at 4900 RPM and 31"  MP..............rarely less, and sometimes 5000 RPM and 34" MP when I'm in a  hurry to get someplace.  I have a Whirlwind CS prop.

  

 Garry Stout

  

 [quote]   ---

paul.mcallister

Joined: 09 Jan 2006
Posts: 177
Location: Waukesha, WI USA

Posted: Wed Jun 07, 2006 4:36 am Post subject: [ Ken Hill ] : New Email List Photo Share Available!

Garry,

  

 I wish  mine did that.  I find 5.3 gph (at) 28".  Its a real pain because it  limits my range for legal IFR.  I have messed with the carburettor needles  but I haven't made much improvment.

  

 I  suspect that the taper of the needle is wrong because at 24" the EGT's sit  around 1600, but at 28" they seem to run in the low 1400's.  I'll have to  hook my laptop up to the EIS and record a bunch more temperatures at various  altitude & power settins one of these days and see what I can  conclude.

  

 Paul



 [quote]   --

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