Has anyone performed a Lomcovak manoeuvre in a C152 aerobat, is it even possible, or would that likely overstress the engine?
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$\begingroup$ Just from reading the article you linked, I'd strongly advise against doing this with a Cessna. $\endgroup$– user7241Jul 25, 2015 at 18:14
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$\begingroup$ @jjack: the 152 Aerobat is sturdier than your typical Cessna, rated +6g / -3g. Doesn't mean it could do a Lomcovak, but it might be strong enough. Depends a lot on the engine & engine mount, I imagine. $\endgroup$– egidJul 25, 2015 at 20:09
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$\begingroup$ The maneuver was originally performed in a Zlin, which could do around +10g, depending on the model. This is a fully aerobatics capable aircraft. $\endgroup$– user7241Jul 25, 2015 at 20:51
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$\begingroup$ Yeah, but the Lomcovak is primarily negative g, right? Is the Zlin that did the maneuver +/-10g? $\endgroup$– egidJul 26, 2015 at 22:22
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$\begingroup$ Supposedly, telling from the wing loading (positive) given here: en.wikipedia.org/wiki/Zl%C3%ADn_Z_26 $\endgroup$– user7241Jul 27, 2015 at 18:07
1 Answer
The list of approved maneuvers is in the POH, and I'm sure the Lomcovak is not listed. If you are willing to do unapproved maneuvers, the issue is that because the aircraft tumbles rather than flies in this maneuver you have a few things to worry about: it starts with an outside maneuver, it is inverted, and the exit requires a high-speed dive which will exceed Vne or the +6g the 152 Aerobat is rated for.