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ET wrote:
wrote in : Montblack wrote: wrote) The blurbs I've been reading say if they can't get to the magic $100K, they aren't going to produce it. http://skyhawk.cessna.com/pricelist.chtml Price List: $172,500 - $209,750 Max speed at sea level: 123 kts Cessna LSA: "120 kts!" $100,000(?) 60% the fuel burn of a new 172? Yeah, but at a much reduced payload. Check out the Sport Cruiser at http://www.sportaircraftworks.com/ The sport cruiser will only cruise at about 100 knots... Yeah, I really meant the parrot which is about 115 knots with 120 hp. -- Jim Pennino Remove .spam.sux to reply. |
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![]() wrote in message ... ET wrote: wrote in : Montblack wrote: wrote) The blurbs I've been reading say if they can't get to the magic $100K, they aren't going to produce it. http://skyhawk.cessna.com/pricelist.chtml Price List: $172,500 - $209,750 Max speed at sea level: 123 kts Cessna LSA: "120 kts!" $100,000(?) 60% the fuel burn of a new 172? Yeah, but at a much reduced payload. Check out the Sport Cruiser at http://www.sportaircraftworks.com/ The sport cruiser will only cruise at about 100 knots... Yeah, I really meant the parrot which is about 115 knots with 120 hp. You know that Sport Cruiser looks like it should be faster than that even with a 912ULS engine. |
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"Gig 601XL Builder" wrDOTgiaconaATcox.net wrote in
: wrote in message ... ET wrote: wrote in : Montblack wrote: wrote) The blurbs I've been reading say if they can't get to the magic $100K, they aren't going to produce it. http://skyhawk.cessna.com/pricelist.chtml Price List: $172,500 - $209,750 Max speed at sea level: 123 kts Cessna LSA: "120 kts!" $100,000(?) 60% the fuel burn of a new 172? Yeah, but at a much reduced payload. Check out the Sport Cruiser at http://www.sportaircraftworks.com/ The sport cruiser will only cruise at about 100 knots... Yeah, I really meant the parrot which is about 115 knots with 120 hp. You know that Sport Cruiser looks like it should be faster than that even with a 912ULS engine. The looks are decieving. I was told at OSH by the dealer that the slower speed has to do some with higher empty weight, although that doesnt make much sense since it is still slower at the same gross the parrot would be faster at.... I like the Parrot alot, although I'm ussually partial to low wings, the Parrot DOES have a stand-up cockpit. I bet the Sport Cruiser would get up there a bit with the Jabiru engine. -- -- ET :-) "A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools."---- Douglas Adams |
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#6
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actually...according to one sport cruiser dealer......the Sport Cruiser is
distributed by the same distributor as teh Sport Sting, which has a much higher price tag. The distributor, on purpose, de-rates the Cruiser's speed to improve the sales on the Sting. I'll let you know. I'm flying a Cruiser next week. wrote in message news:Rd8Cg.17729$Qu4.9630@trnddc04... On 8-Aug-2006, wrote: Yeah, I really meant the parrot which is about 115 knots with 120 hp. --If you believe in miracles. By the laws of aerodynamics, for a given airframe (i.e. same drag characteristics) the airspeed in level flight will increase as the cube root of the increase in power. According to the cited webpage, the Parrot cruises at 75% with a 100 hp engine at 115 mph (100 kts). They PROJECT that 75% cruise speed will be 130 mph(113 kts) with a 120 hp engine. But according to the cube root law, you would need to increase engine size to 144 hp in order to get 75% cruise to increase from 115 to 130 mph. In order to do it with only 120 hp you would have to have a miraculous increase in propeller efficiency (not likely, and anyway you can't do better than 100%) and/or a huge reduction in cooling drag (also unlikely). More likely, 75% cruise with the 120 hp engine will be around 122 mph (106 kts). -Elliott Drucker |
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wrote in
news:Rd8Cg.17729$Qu4.9630@trnddc04: On 8-Aug-2006, wrote: Yeah, I really meant the parrot which is about 115 knots with 120 hp. --If you believe in miracles. By the laws of aerodynamics, for a given airframe (i.e. same drag characteristics) the airspeed in level flight will increase as the cube root of the increase in power. According to the cited webpage, the Parrot cruises at 75% with a 100 hp engine at 115 mph (100 kts). They PROJECT that 75% cruise speed will be 130 mph(113 kts) with a 120 hp engine. But according to the cube root law, you would need to increase engine size to 144 hp in order to get 75% cruise to increase from 115 to 130 mph. In order to do it with only 120 hp you would have to have a miraculous increase in propeller efficiency (not likely, and anyway you can't do better than 100%) and/or a huge reduction in cooling drag (also unlikely). More likely, 75% cruise with the 120 hp engine will be around 122 mph (106 kts). -Elliott Drucker It could also be the efficiency of the "100 hp" Rotax comparted to the 120hp Jabiru. Cooling drag WILL come into effect as the Rotax is water cooled and generally not well baffled in the engine compartment except for the radiator. Also for some reason they want to put a 3 blade propeller on these Rotax LSAs, and I mostly see 2 bladed props on Jabirus. Maybe wont make up the whole difference, but time will tell I suppose. -- -- ET :-) "A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools."---- Douglas Adams |
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