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582 prop and gearbox ratio r u using

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ccoulter(at)wavecable.com
Guest

Posted: Fri Dec 27, 2013 4:00 pm Post subject: 582 prop and gearbox ratio r u using

I have a series I Pulsar XP. It is located at Bremerton 

National airport in Western Washington.   I am considering 

selling it to the right buyer.



Clarke



On Fri, 27 Dec 2013 11:17:56 -0800

  "philb" <pjb12345uk(at)yahoo.co.uk> wrote:

 	  Quote: 	
		   

<pjb12345uk(at)yahoo.co.uk>

 

 as i am thinking of getting a pulsar and would like to 

optimise prop  gearbox ratio   for perfrmance   so was 

wondering what u are all using 

 prop wise   diam and pitch 

 gearbox ratio 

 static rpm 

 climb rate   one up

 take off roll one up approx 

 and cruise   speeds  at say 5000 rpm   5600  and flat 

out 

 it could even become a sticky 

 phil

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=416244#416244

 

 

 

 

 

 

 

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timrhod(at)aol.com
Guest

Posted: Fri Dec 27, 2013 4:12 pm Post subject: 582 prop and gearbox ratio r u using

My pulsar is for sale.  series one   582  wood wing   Two time Oshkosh winner Tim Rhodenbaugh. Located in ohio



Sent from my iPhone



On Dec 27, 2013, at 11:17 AM, "philb" <pjb12345uk(at)yahoo.co.uk> wrote:



 	  Quote: 	
		   

 

 as i am thinking of getting a pulsar and would like to optimise prop  gearbox ratio   for perfrmance   so was wondering what u are all using 

 prop wise   diam and pitch 

 gearbox ratio 

 static rpm 

 climb rate   one up

 take off roll one up approx 

 and cruise   speeds  at say 5000 rpm   5600  and flat out 

 it could even become a sticky 

 phil

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=416244#416244

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kdpalmer(at)mweb.co.za
Guest

Posted: Fri Dec 27, 2013 4:27 pm Post subject: 582 prop and gearbox ratio r u using

Using a fixed prop is always a compromise from the start, you must decide

what you need the most (you can't have it all) and by formuli you can

calculate  which prop, pitch, length & ratio will be the best in your

circumstances .



There is a lot to read on the internet on the subject, and I feel it is the

most under rated part of setting up an aircraft.



I found it very fascinating and rewarding. It's like setting up a one geared

tractor to serve your particular purpose.

 If your could fit an 'in flight adjustable prop' you could have the best of

both worlds, converting your tractor into a 6 speed sports car.



   Regards

    Keith D. Palmer

~ Rotary Pulse Engines ~



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stevepulsar(at)tiscali.co
Guest

Posted: Sun Dec 29, 2013 8:40 am Post subject: 582 prop and gearbox ratio r u using

Hi Keith

             We a have 582 tailwheel and we run a GSC ground adjustable 

prop. The diameter is 56 inches, you should set the prop up to give about 

6200 static at full throttle, any less and you run the risk of the rpm 

bogging down at the wrong moment.

              At this setting  we get about 125MPH at 5800rpm and about 

145MPH at full throttle at something like 6400RPM. Hope this helps.



Steve and Roger (G-BUSR) in England.



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paqs345(at)gmail.com
Guest

Posted: Mon Dec 30, 2013 8:00 am Post subject: 582 prop and gearbox ratio r u using

Hello Phil,



You don’t have much of a choice, there are only 2 gear ratios for the

Rotax 912. The 80 hp version has 2.27, the 100 hp version slightly

different. A variable pitch prop is the only way to go in the Pulsar

if you want to maximize performance. The 64” GSC in flight adjustable

is a good choice. My XP has about 1000 h on it with this prop.



Performance (measured/estimated):

Best rate of climb about 1050 fpm at gross weight, sea level, standard

conditions.

Cruise speed: 	125 KTAS at 3.0 gal/h	

133 KTAS at 3.5 gal/h.

		  	138 KTAS at 4.5 gal/h	

Range (18 gal total): 	4.8 hours plus one hour reserve at 3.0 gal/h

--> 550 nm no wind

4 hours plus one hour reserve at 3.5 gal/h  --> 500 nm no wind

	  	2.8 hours plus one hour reserve at 4.5 gal/h  --> 372 nm no wind



Take off distance:  		<1000 ft ground roll at gross weight, sea level

hard surface			1500 ft over 50 ft obstacle

Landing distance 		1500 ft with slow approach



Sonja



On 12/27/13, philb <pjb12345uk(at)yahoo.co.uk> wrote:

 	  Quote: 	
		   



 as i am thinking of getting a pulsar and would like to optimise prop

 gearbox ratio   for perfrmance   so was wondering what u are all using

 prop wise   diam and pitch

 gearbox ratio

 static rpm

 climb rate   one up

 take off roll one up approx

 and cruise   speeds  at say 5000 rpm   5600  and flat out

 it could even become a sticky

 phil





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=416244#416244

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kdpalmer(at)mweb.co.za
Guest

Posted: Mon Dec 30, 2013 9:20 am Post subject: 582 prop and gearbox ratio r u using

Hi Sonja,

                I got hold of GSC a while ago(different team)and he said

they had discontinued the manufacture of the in flight adjustable, but still

had the jigs, but things might have changed again. I had two, one spare,

they serviced my first one and offered me the new version for a very nominal

fee.



    Regards

    Keith D. Palmer

~ Rotary Pulse Engines ~

        ~~~~~~~~~~~~

  RPE-Skunkworx

     P.O.Box   50512

 Musgrave Road, 4062.

          Durban.

       KZN. - S.A.



LL Tel +27  (0)31 708 1428

Mobile +27 (0)82 832 5533



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