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#20
August 14th 19, 03:33 PM
posted to rec.aviation.soaring
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Tow plane types/mods for high density altitude glider towing
That is super!
Was there any difficulty with your CAA or was the GFA authorized to make those mods? On 8/13/2019 2:08 PM, JS wrote: Regarding mods, the eTug deserves mention. A Pawnee with a 350 cubic inch Chevy LS1 running on Mogas. Early experiments provided too steep a climb angle, so the original 4-blade prop was adjusted to decrease the climb rate. Now it has a different prop. I've hooked many gliders up to eTug, yet to tow behind it. https://www.glidingclub.org.au/membe...aircraft/etug/ These days a crate LS3 engine can be purchased for about $8000 and produces 430HP on Mogas. Car engines require a PSRU (speed reduction). https://www.gmperformancemotor.com/p... AhPlEALw_wcB Not much concern about shock cooling or leaded Avgas going away. Jim -- Dan, 5J 
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