Okay...

Up at the Field where i Fly and On my Sim Game i have been Practicing a maneuver and just cant seem to Pull it off....
i have done the Move before but not on purpose....hehe

Watch this Video [link=http://mikegoulian.com/assets/multimedia/video.wmv]*-(Right Click/Save As)-*[/link]
Its The Maneuver That this "Full Scale Cap232" Pilot does at these time's in the video :56 / 2:41 / 4:03
When the Plane is flipping on its own axis..... i just cant seem to figure it out

Anybody have any pointers on how to do this


Thanks
John...

its a water fall.....
with rc planes i was told to clim like you are going to do a flatspin or whatever..just get enough hieght
use full down elevator when plane gets to invertstall add power(alot)when upright andlevel no power..waterfall needs lots of elevator and elev is full the hole time power gets it to flip it around..when you manage the power right it should be a constant speed up and down..you will need the ailiron and rudder to make correction during move.to get out flip to low rates and netrual..i will see if i can find the site that show some 3d moves with vid..

Actualy isn't that more like a lomcevac? A waterfall is closer to the move around the :45 mark. to do a lomcevac if I remember right is
1. Climb to a 45 degr. up line
2. input right aileron amd right rudder for 1/2 rotation
3. punch full throttle reverse the ailoerons and give full down.

And again I could be wrong.

good site for some 3d moves 3DRC.info : The new online guide to Performance Aerobatics
http://www.3drc.info/aerobatics/3d/waterfall.htm

sorry danny, but captainpitts is right, it is a lomchevak (spelled wrong probboly) it is like a knife edge spin going forwards, just gotta have the altitude to get out of it, lol

when my other computer is fixed i will try to make a vid from realflight of it

so its a knife edge spin.not waterfall?
i did not watch hole vid looked like waterfall..

A waterfall starts with the plane's wings level with the horizon and completely stalled. He entered it not stalled at all. It's not a waterfall. It looks more like a forward moving knife edge spin.

Whatever it is it's very cool. I noticed it right away when I saw the video. That guy is a great pliot and of course flying a great plane, CAP232 (a true tumbler).

I saw the Oracle Pitts and Bull Dog do a really cool one that's not easy. It's like a harrier but with the plane yawed almost 45 degrees. They do it right off the ground (8 feet) and it looks cool as hell. Try to do that one!!

The only thing I can think of how they do it is rudder for the yaw and opposite aileron to keep it flat (almost full up elevator of course). It looks like a sideways harrier. I wish I could find a video of it.

depends on what part of the video you are talking about. He does some waterfalls and some other stuff I havent ever seen before but Im not sure if its a lomcevak. Doesnt look like it to me, jmho.

If you had a rod run through the wing exposed on both ends and then put the airplane on a spit(cooking term) and flipped the plane forward over and over on the spit, like cooking a pig on an open fire,,, thats a waterfall except in flight it may lose a little altitude and you cant eat it.

A KE spin looks like a waterfall except the wings are vertical and the plane falls like a turd in a well while it is happening. Waterfall wings horizontal, knife edge spin wings vertical..

He does a cool looking maneuver where the plane is waterfalling and travelling sideways on the rotational axis[8D], but the plane never flips end over end and never ends up flying tail first which is where a lomcevak is supposed to end up, at least thats what I have always understood. Whataever he is doing it is WAY cool and I dont know how he is doing it..

Also remember, when attempting to recreate maneuvers you see the real airplanes do, with your RC model plane, that while we can do many maneuvers the real planes can't do, the real planes use the tremendous torque and gyroscopic forces generated by the engine and prop to their advantage, and thereby make certain tumble and yaw movements possible, where we have to rely more on airflow over the control surfaces to perform these movements.
DKjens

3 words.............

FLAP ER ONS.......

Looked a lot more like a lomchevak <sp> than a waterfall. The best description of a lomchevak I have heard is a series of ass over teakettle flips while going forward at a 45 degree angle. Someone once told me that lomchevak is Russian for headache and I can see why.

Ed M.

Sorry I have to correct you "lomcovak" is the correct spelling and didn't come from Russia but former Czechoslovakia. The maneuver was invented in early 50ies by Czech pilots. The exact translation is something like " shaker" but it has adopted translation as headache.

from: http://www.gsal.org/articles/flying/...n_van_leeu.htm
LOMCOVAK:

A Lomcovak is considered successful if the empanage of the A/C breaks the forward plane of trajectory.

A) 45 upline, roll inverted, immediately initiate an outside snap. At the apex airspeed is zero and the combined rotational forces from the snap, torque from the engine and full forward elevator flip A/C end over end in a forward pitch tumble. Recovery is immediate after 2nd tumble

B) 45 upline, roll left to knife edge. Full right aileron, rudder and down elevator

C) 45 upline, positive snap left till inverted, then immediately apply full down elevator while maintaining previous control inputs. A Lomcovak is considered successful if the empanage of the A/C breaks the forward plane of trajectory.

fredo, thanks for the correction, thats why I put the <sp> behind it to denote it was most likely spelled wrong. You would think a common word like that would be in the spell checker.

I bet the first pilot to do one went thru a lot of names not appropriate for use before he settled on the equivalent of shaker!

lomcovak, just typing it in to get it in the spell checker.

Ed M.

OK. here is a couple of vids with climbing lomcovak[link]http://www.yakuk.com/video/Evora1.MOV[/link][link]http://www.yakuk.com/video/Lomcovak.mpeg[/link]