Did one of these yesterday for the first time. Pulled vertical, started an unloaded roll to the left, let it slow down then put in a bootful of right rudder and forward left stick. It was great. :D
The first Lomcevak that I saw was at the Sussex Air Show in New Jersey performed by the late Leo Loudenslager. Sadly both are gone. But what a show! If I remember correctly, they said over the loud speaker that Lomcevak means headache in German. I don't know if that is true, but if it is, then I can see why they call it that. It is one violent maneuver! But fun to watch!
Niel Williams spent the latter part of his life developing the Lomcevak so I'll stick with his interpretation. If the maneuver is rotating at the CG in pitch with no roll or yaw, it's a Lomcevak. There's a video on my site that shows Art Scholl doing a classic Lomcevak. Art was a master at it with a big airplane like the Super Chipmunk. A knife edge Lomcevak is still a Lomcevak...it just happens to be falling sideways. From pilot descriptions it sounds like the P39 Airacobra would Lomcevak.
With the exception of the second video (silver/red Zlin 50), these are all Knife Edge Spins...and not really Lomcovak in the traditional sense. Similar family of maneuvers though...and lots of fun to watch.
Well... a knife edge spin is not actually a spin at all, it's a tumble. A good one will make it appear that the airplane is in a "spin." So if you define a lomcevak as a tumble, then there ya go.
Nah, see that's what I mean, every tumble is equated with a lomcovak. I recommend reading the Neil Williams book "Aerobatics." Underline important parts, write notes in the margins, and then read it again. But the Czechs at the time would define it as: "A rapid negative roll executed in that direction towards which the torque of the propeller is helping in rotation." The "tumble" is 1 of about 10 maneuvers he describes, and I'm not convinced it is what we would call a tumble nowadays.
And when I say that they are always equated, I mean incorrectly so. A good indicator, in my mind, is could the aircraft perform the same maneuver equally well w/ opposite rotation? If so, it's probably not a Lomcovak. Sean D. Tucker performs tons of "tumbles" at the beginning of his routine, but these are with the rotation of the prop, not against it (not lomcovaks). When he performs the "holy hockmire" that would probably count. It's so confused at this point, it might not matter...
A proper Lomcevak tumbles head over heel around the CG or center of the airplane. Usually they are done to the left...A Sukhoi would be to the right since the engine rotates the other direction. A Lomcevak is not a snap roll, not a yaw pivot or a yawing snaproll. I'm sure the pilot can feel a good one since there is not much G generated during the tumble. There is a danger of a flat inverted spin on recovery and if the Lomcevac is performed low this could be a real problem.
fwaar...
how would you go about inducing one? what points would i need to do on the controls?
flame123117 3 months ago
Lomcevak is actually Czechoslovakian and roughly translates to headache or hangover.
42percent 3 months ago
Did one of these yesterday for the first time. Pulled vertical, started an unloaded roll to the left, let it slow down then put in a bootful of right rudder and forward left stick. It was great. :D
StickandRuddur 4 months ago
MR.ART came up with this ,,,,,n a pitts pull 45 roll left ,snapright !!!!! it works ,,,try it!!!!
taylor13kanye741 6 months ago
If you want to see a Lomcevak in a jet plane check out the Frecce Tricolori.
UnknownGnome1 6 months ago
The first Lomcevak that I saw was at the Sussex Air Show in New Jersey performed by the late Leo Loudenslager. Sadly both are gone. But what a show! If I remember correctly, they said over the loud speaker that Lomcevak means headache in German. I don't know if that is true, but if it is, then I can see why they call it that. It is one violent maneuver! But fun to watch!
buckshot1957 9 months ago
in this video it seems that the cap232 and zlin's perform the lomcevak better
ripmax333 1 year ago
Hj só é permitido mesmo com aeromodelo...hahahaha
PEDROELTON 2 years ago
há três tipos de manobras diferentes nesse vídeo: lomcevak, tumbles e knife edge spin
Jomolos 2 years ago
essa manobra se chama tumblle cambada de gringo burro
cisco330 2 years ago
Comment removed
Jomolos 2 years ago
Comment removed
Jomolos 2 years ago
You guys are forgeting that when you do oustide snaps or tumbles you do it to the right. An normal turning engines
SZPkid 2 years ago
Niel Williams spent the latter part of his life developing the Lomcevak so I'll stick with his interpretation. If the maneuver is rotating at the CG in pitch with no roll or yaw, it's a Lomcevak. There's a video on my site that shows Art Scholl doing a classic Lomcevak. Art was a master at it with a big airplane like the Super Chipmunk. A knife edge Lomcevak is still a Lomcevak...it just happens to be falling sideways. From pilot descriptions it sounds like the P39 Airacobra would Lomcevak.
MGB1977Red 2 years ago
With the exception of the second video (silver/red Zlin 50), these are all Knife Edge Spins...and not really Lomcovak in the traditional sense. Similar family of maneuvers though...and lots of fun to watch.
lieutfunaki 2 years ago 4
Well... a knife edge spin is not actually a spin at all, it's a tumble. A good one will make it appear that the airplane is in a "spin." So if you define a lomcevak as a tumble, then there ya go.
thorn543 2 years ago
Nah, see that's what I mean, every tumble is equated with a lomcovak. I recommend reading the Neil Williams book "Aerobatics." Underline important parts, write notes in the margins, and then read it again. But the Czechs at the time would define it as: "A rapid negative roll executed in that direction towards which the torque of the propeller is helping in rotation." The "tumble" is 1 of about 10 maneuvers he describes, and I'm not convinced it is what we would call a tumble nowadays.
lieutfunaki 2 years ago
And when I say that they are always equated, I mean incorrectly so. A good indicator, in my mind, is could the aircraft perform the same maneuver equally well w/ opposite rotation? If so, it's probably not a Lomcovak. Sean D. Tucker performs tons of "tumbles" at the beginning of his routine, but these are with the rotation of the prop, not against it (not lomcovaks). When he performs the "holy hockmire" that would probably count. It's so confused at this point, it might not matter...
lieutfunaki 2 years ago
knife edge spin?
aiasuka1016 3 years ago 2
more less
TejasRCpilot 3 years ago
I just was in a Yak and did this for the first time! HOLY CRAP! It's violent as hell but so much fun!
jlrobbins04 3 years ago
The first one just look like outside snap rolls to me. The Yellow Aircraft on the stall downward look like an Knife Edge Stall.
Others where sure Lomcevaks though.
Airshowfan2 3 years ago
A proper Lomcevak tumbles head over heel around the CG or center of the airplane. Usually they are done to the left...A Sukhoi would be to the right since the engine rotates the other direction. A Lomcevak is not a snap roll, not a yaw pivot or a yawing snaproll. I'm sure the pilot can feel a good one since there is not much G generated during the tumble. There is a danger of a flat inverted spin on recovery and if the Lomcevac is performed low this could be a real problem.
MGB1977Red 3 years ago