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I recently read about the Pelegrin Tarragon ultralight aircraft made in my country, and got interested in it.

Is it possible to have a reasonable estimate of the average distance you could cover in such plane, taking into account that it has a cruising speed of 270km/h, a 96l fuel tank and the engine it uses (a single Rotax 912ULS) is listed as using 15l/h at 5500rpm (75% power)?

Unfortunately, the manufacturer's page doesn't list any max distance or indeed any technical specs, and Wikipedia entry doesn't list much more either

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  • $\begingroup$ @MichaelTracy dammit, that's what happens when looking from mobile. the manufacturer's page doesn't list range when viewing mobile version of the page. thanks. $\endgroup$
    – Gnudiff
    Apr 27, 2020 at 0:09
  • $\begingroup$ Why is this a question when it can be so robustly obtained from a simple Google Search? $\endgroup$
    – Super
    Apr 27, 2020 at 1:03
  • $\begingroup$ That 15l/hr has to be at 60%. At 75% the specific fuel consumption is under .4 lb/hp/hr, which seems to be a stretch, even for an efficient geared engine. $\endgroup$
    – John K
    Apr 27, 2020 at 1:26

2 Answers 2

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According to the manufacturer, it has a range of 1,300km.

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A more reasonable fuel burn at 75% on the Rotax 912ULS is 18 Lph and with long range 250L option the Pelegrin has a no-reserve range of 3,750 km but few of us would enjoy sitting 13+ hrs in the cockpit. The longer range tanks were developed for a future military trainer incorporating a thirstier turboprop engine.

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  • $\begingroup$ 13 hours... yikes!!! Nevertheless, welcome to Av.SE! $\endgroup$
    – Ralph J
    Dec 4, 2020 at 15:07

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