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Very Hot Topic (More than 25 Replies) Ohka glider (Read 24314 times)
Sky9pilot
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Re: Ohka glider
Reply #10 - May 26th, 2010 at 4:15pm
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BlackLion is right Grin Grin Grin BOOM!!!! IS THE RIGHT RESPONSE Grin Cool

I hand launched my Orange Ohka and she glided ok with a real hefty toss.  My retrieval team raced to get it and return it to Papa and crack the elevators.  I didn't go through the check list and just tossed it again harder...she flew and porpused (sp) the whole glide.  Have since glued the elevator and have great hopes for the cat launch....storms have hit again so no flights as of yet...bought some Revell $1 hand launched gliders to get the retrieval team schooled in how to hold a balsa plane and how to pick it up.  They catch on quick and now its, "Papa lets go fly the planes!!!"

Cool, may have some future modelers here?  If you can recruit them grow your own Grin Grin Grin

Regards,
Sky9pilot
Tom
here's some pics of Ohka #2 grey scheme (got to have one for each of the retrieval team)
The two Ohka's

left side

Right side

rear view...what a P51 or P38 might have seen Grin

Pilot...trained till he could keep from crashing then sent to crash Roll Eyes Lips Sealed


Sorry for hyjacking your thread Thyme Sad Grin Cool Thanks for letting me post.
Regards,
Tom
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If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Re: Ohka glider
Reply #9 - May 26th, 2010 at 8:51am
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It was an Ohka....it's supposed to go "boom" when it hits. Anything else wouldn't be to scale.  Grin
  
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thymekiller
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Re: Ohka glider
Reply #8 - May 25th, 2010 at 8:09pm
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Again I say, EXCELLANT work Tom !!!

Mines destroyed.  Cry Almost had it right and she piled into the gravel parking lot. Multiple pieces, multiple tears.  Cry Oh well. I still have the first one. I used "c" grain for the fuse and I should have held out for "a" grain. Will get some wood this weekend.

She had a decent glide for wind conditions, and I was getting pretty good with aiming the loop. I was working on transition, when she left the lawn and nosed into the driveway. I did not hear the cracking of the wood , but I felt it alittle in me bones.  Grin Grin

Sky, when you first try yours, FIND TALL GRASS !!!!  Dont do it with the little ones around. It moves amazingly fast. It hit me once. Grin After that, I knew what to expect. Dont worry too much about the glide. You probly wont glide at the speed that the rubber will move it. That will change things. Any decent glide will do. Then use a small amount of rubber. Small amount of pull. BEWARE it will come back to you. I used the tail feathers for the glide and was using the main wing adjustments for transition. Make very small adjustments. When you first try it, you wont need alot of space.
  

",,,The road goes on forever, and the party never ends..."
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thymekiller
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Re: Ohka glider
Reply #7 - May 23rd, 2010 at 7:47am
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You outdid yourself this time. That looks really GREAT ! The panel lines, the colors, and the canopy. I am most thrilled with the canopy. WOW that looks great. Be sure to put that one in the Hanger section.
Dont worry about the weight. It may help to have a little mass. Might make it more stable.
  

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Sky9pilot
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Re: Ohka glider
Reply #6 - May 22nd, 2010 at 10:10pm
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Thyme,

Here's some shots of my Okha...
Used what balsa I had on hand...1/4 inch for the fuselage (makes this one a bit heavy).  Sanded the fuse to 3/16 to try to save some weight.  Used 1/16 for all flying surfaces and vertical stabs.

Decided to go with the training scheme of Orange on top and light grey on the bottom.  Kinda like it.  Used acrylic artist paint thined with water after sealing the balsa with clear krylon glossy which I sanded after two very light coats (fogged on).  Looks OK.

Weight is 15.2 grams, very heavy compared to those on the HPA site and yours.  I'm sure its the heavy fuselage.  Oh well we'll see how it works out.

Here are the pics...




Here's the bottom...

Been stormy here all day so spent the day adding markings of meatballs out of red tissue backed by white tissue disks.  Then panel lines with a sharpie fine point pen from 3 view from the "net"

Regards,
Sky9pilot
  

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Re: Ohka glider
Reply #5 - May 21st, 2010 at 4:42pm
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Thyme,
That's all part of the learning curve...
If you've checked the cg and it's on the mark you should be able to get a straight and level glide (even if it's fast).  From there you tweak the control surfaces and Pit says, a little goes a long way, just rub the side of the surface you want it to go in.  

I checked out the HPA site and saw that the angle of launch has alot to do with climb out and bank.

Got to do one though for myself...

Keep at it.... Grin Grin Grin Cool
Tom
  

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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thymekiller
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Re: Ohka glider
Reply #4 - May 20th, 2010 at 9:03pm
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Got a shot to play with it inbetween fronts. Dead still air. The stupid thing has no recovery skills.
It wont correct. at all. Its more of an arrow than a plane. More like a dart.
Gonna give up and build a real glider. Cant see the value in this as a trainer.
Thinking I might rebalance my Guillows Javelin and shoot it off a rubber cat. It will transition to flat glide. You can send it 20 foot and circle, or shoot it to the moon and hope for the best. Whatever, it will respond. It will fly.
This craft is too small for me. Shortcoupled sucks.
  

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thymekiller
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Re: Ohka glider
Reply #3 - May 18th, 2010 at 8:28pm
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Best glide I have ever seen in my life.  Smiley Smiley Smiley
Then I painted it.  Cry Cry Cry
Now I gotta rebalance the whole thing. Gonna do this one as per the plan but will alter the next.
Its amazing how much Krylon weighs.  Shocked Shocked
Its amazing how delicate these things are in regards to balance.
  

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thymekiller
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Re: Ohka glider
Reply #2 - May 17th, 2010 at 8:17pm
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Ha Ha Ha !
http://www.hippocketaeronautics.com/hpa_forum/index.php/topic,3731.0.html

Ask Pit. I dont know how to send a pdf.  He can crop and resize the plan so that it prints out to full size, then email it to you. Thats where I got it. Pit has LOTS of experince with cat launch gliders and he's a pretty decent guy. If you feel the need to stick to scale, there was a long nosed one. Less ballast makes for a liter model overall. I'm not sure that lite is better with this things.
Learning, learning, learning.  Wink

  

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Re: Ohka glider
Reply #1 - May 17th, 2010 at 6:04pm
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OK....Ya got me! Wink Cool

Any possibility getting the plan?????

here's my email   tomakerytaa@yahoo.com.

Let me know if there's any problem.

I just gotta try this.

Tom
  

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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thymekiller
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Ohka glider
May 17th, 2010 at 5:59am
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Gonna take a shot at a cat launch glider. Marcelo's cubs have built one and they are pretty excited about it. Lets see how I match up to a group of young kids. I might be in trouble.  Undecided
After mistakes, my wing span came out to 7 3/4 inches. It took longer for the glue to dri than it did to cut it out and sand it. The first one didnt come out so great. I drew it from memory from the pics online.
Pit sent me the correct size plan and the second one should be alot better.
Flight test as soon as weather permits.
  

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