Great Planes Yak 54 55cc crash video

Started by Harveer, August 24, 2010, 11:04:56 PM

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Harveer

Setting-up & flying Great Planes Yak 54 for last 2-3 months. On sunday i m trying to tail touch

the yak (Done ones before) & this time unfortunately rudder touch the ground with left

correction & after neutralize rudder, The load of the plane comes on the rudder & servo (Hitec

HS-7955TG Titanium Gear x 1) & servo Horn gear striped (Heavy Duty Plastic Stock Horn) &

rudder jamed in left position & aircraft yaw to the left in uncontroled left turn and BAMmmmm.




Humble Request to all RCI member, If anybody having pieces of 6 to 8" x 6 to 8" of TF Monocote

color- Metallic Blue - TOPQ0402 & Metallic Red - TOPQ0405 Plz, PM me. Needs to repair the wing

tip. Ready to pay moderate price.

Thanx in advance.
HArveer.

vinay

#1
Harveer, how much did the yak cost you excluding RX? BTW nice flying. looks like it was quite windy.

majraj

Harveer,

What size Yak is this & what eng & prop are you using?

sandeepm

#3
Sorry to say but this but this is absolutely WRONG way of flying directly standing and facing towards the sun. i was not expecting these errors from an experienced flier....
I was once taught about these small but important things by Mr. Sushil at Airoli ground..
You can see that the camera itself was not able to adjust the brightness, how can u expect our eyes to adjust.....

I hope no one was hurt in this accident!
Fly high if you have good set of batteries.....!

vinay

BTW From what I saw in the vid, the plane flew Out of control, This indicates that however careful we are in RC and how much ever experienced the flier is, Its still dangerous.  >:D

controlflyer

ouch!! :-X :-X
the damage looks bad on the wing tip..
Money flies when the transmitter is ON...

sushil_anand

I would call that very minor damage. Harveer is downright lucky, in more ways than one!
Hangar: Zlin 50L -120, CMPro Super Chipmunk, Ultimate Bipe EP, Imagine 50, Christen Eagle 160, Ultra Stick, Super Sports Senior

sushil_anand

Quote from: vinay on August 25, 2010, 05:53:34 PM
BTW From what I saw in the vid, the plane flew Out of control,  >:D


Yes. But it lost control because of the attempted "stunt".
Hangar: Zlin 50L -120, CMPro Super Chipmunk, Ultimate Bipe EP, Imagine 50, Christen Eagle 160, Ultra Stick, Super Sports Senior

flying doc

Guys, What this video shows is not a "Stunt", what is does show is the problem one can face when one uses plastic servo gears on a planes capable of doing 3D flying. After the tail touch the plane draged on the tail and during this drag the gears on the servo arm stripped off, leaving the rudder on one side. During recovery the plane because of the on sided rudder, veered to one side and and hit the ground. If it were not for skill the damage would have been much more than just a damaged wing tip and a broken prop. Come to think of it, why does one make and fly 55 cc gassers, capable of 3D maneuvers, if one does not do 3D with them? Straight and level flying can be done with 25 glow trainers also. Even the best pilots in the world experiment, and a lot of times crash during their experiments. As they say
"Girtey hain sheh sawar hi maidaney jung mein,
jo ghutno ke bal chaltey hain, vo khaak ladengey."

As for the sun, it was way above the level of flying and was never in the line of sight during the maneuver.
Lessons learnt
Use alluminium or titanium servo arms and gears on big 3D capable planes.
Keep your cool after u've planted your favorite plane into the ground.  ;) ;) ;)
Tiger Sports 40, SPA3D, SPAD Extra all with ASP 52 engines.
SPAD Debonair with OS 46
Turbo Raven 60 with an ASP 91
Next build - Accipiter 91 with DLE 20
Futaba 6EXAP, Futaba 10 CAP

sushil_anand

My dictionary defines "stunt" as:

" A feat displaying unusual strength, SKILL or daring".

I rest my case.
Hangar: Zlin 50L -120, CMPro Super Chipmunk, Ultimate Bipe EP, Imagine 50, Christen Eagle 160, Ultra Stick, Super Sports Senior

controlflyer

I agree with Ismile!
It cannot be defined as only a "stunt" in RC Flying, it would be better called a Maneuver..
Money flies when the transmitter is ON...

sushil_anand

He was either "displaying unusual ....., SKILL " or, I need a new dictionary ;D
Hangar: Zlin 50L -120, CMPro Super Chipmunk, Ultimate Bipe EP, Imagine 50, Christen Eagle 160, Ultra Stick, Super Sports Senior

controlflyer

#12
Quote from: sushil_anand on August 26, 2010, 12:55:36 PM
He was either "displaying unusual ....., SKILL " or, I need a new dictionary ;D
ma·neu·ver/məˈno͞ovər/
Noun: A movement or series of moves requiring skill and care ;D
Nevertheless, he had the skill and he took the care to guide his plane to conduct that feat, but unfortunately, its indeed a pilot error! but it was his "time"
Money flies when the transmitter is ON...

Harveer

One more vid of same yak hovering in gusty wind....


Quote from: vinay on August 25, 2010, 12:02:12 PM
Harveer, how much did the yak cost you excluding RX? BTW nice flying. looks like it was quite windy.

Thanx Vinay. The aircraft is not mine. I assembled & setting-up for my friend. The whole set-up cost him around 1.15 Lac.
Quote from: majraj on August 25, 2010, 04:13:33 PM
Harveer,

What size Yak is this & what eng & prop are you using?


Great Planes Yak 54 81" span. DLE 55 with Xoar 22 3D Prop.
Quote from: sandeepm on August 25, 2010, 04:36:07 PM
Sorry to say but this but this is absolutely WRONG way of flying directly standing and facing towards the sun.

What u r saying is correct but camera dont have sunglasses, I have Dedicated JR Sunglasses for RC flying gives perfect veiw in direct sun.

Quote from: sushil_anand on August 25, 2010, 06:17:33 PM
I would call that very minor damage. Harveer is downright lucky, in more ways than one!

Very True....


Harveer

After Repair...... :)

Put new Menz 22x8 instead of Xoar 22 3D.

anwar

Looks great !  Guess you found all the color monokotes  you were looking for :)
Hangar : Please see my introduction.
RC India forum and me : About this forum.

Harveer

#16
Quote from: anwar on September 03, 2010, 10:56:55 PM
Looks great !  Guess you found all the color monokotes  you were looking for :)

No Anwar  :banghead:.....Request to all RCI member, If anybody having pieces of 6 to 8" x 6 to 8" of TF Monocote color- Metallic Blue - TOPQ0402 & Metallic Red - TOPQ0405 Plz, PM me. Wing tip repaired & ready to colour. Ready to pay moderate price.

Harveer.

@@Ron

#17
awesome repairs thanks..  :thumbsup:

stunt or maneuver. the sun wasn't a problem.. infact how do u plan to hover when the wind is coming from the same direction as the sun and that too if the plane is not perfectly trimmed yet.
you wouldn't want the plane to come towards u in an inverted position whilst u hover if the wind is coming from behind you. so to be on the safer side i prefer hovering against the wind sun or no sun. i just need to nudge the throttle when i feel a bit uncomfortable and the plane flies away from me.  {:)}

Rao

Mr.Harveer,
Have you taken any photos of the repair while doing it?. If you have please post them.

---Rao.

Harveer

Quote from: Rao on September 04, 2010, 02:30:52 AM
Mr.Harveer,
Have you taken any photos of the repair while doing it?. If you have please post them.

---Rao.

Sorry Mr Rao, I dint click repair pix...

Harveer

Yak is back in action.... :thumbsup: