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Very Hot Topic (More than 25 Replies) Me-262 Jetcat (Read 8035 times)
shipwreck
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Re: Me-262 Jetcat
Reply #40 - Feb 21st, 2019 at 11:13am
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Thanks Mike,
Will do.
Paul
  
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MKelly
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Re: Me-262 Jetcat
Reply #39 - Feb 21st, 2019 at 7:09am
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Hi Paul - Henry Toews designed the one I built and to my knowledge hasn't published plans for it.  However, Paul Bradley made a very similar model (same size, bit different wing buildup) and has published plans and tissue templates for it on his site at:  http://www.parmodels.com/me-262-fac-jet-cat

If you build one please post pics and a flight report.

Cheers,

Mike
  
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shipwreck
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Re: Me-262 Jetcat
Reply #38 - Feb 20th, 2019 at 6:47pm
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Is there a set of plans for this that I can get?
Thanks Paul
  
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pb_guy
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Re: Me-262 Jetcat
Reply #37 - Jul 29th, 2018 at 9:45pm
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Ran across this video of a real 262 at an airshow in Germany in 2006. https://www.youtube.com/watch?v=8FA1yCfz9s4
ian
  
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MKelly
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Re: Me-262 Jetcat
Reply #36 - Jul 29th, 2018 at 7:22pm
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Had a nice little flight with the Me-262 today:

https://www.youtube.com/watch?v=vnQ5gQXj7wI&t=2s

  
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Sky9pilot
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Re: Me-262 Jetcat
Reply #35 - May 28th, 2018 at 11:57am
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Mike,
I admit that I don't use my best balsa for Catajets...I usually use the craft store balsa from Michaels etc.  It's usually much harder balsa 7-9 lb stuff that holds up to abuse much better than the lighter stuff I use on rubber powered balsa models.  I'll take your advice on the nose ply doubler and extend it back past the intake.  I'll have to double check the top and side views again.  Thanks for input.  Edit:  changes made to plan.  Thanks again for your input!
Tom
  

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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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MKelly
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Re: Me-262 Jetcat
Reply #34 - May 28th, 2018 at 11:24am
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Tom that's going to be big!  It'll be interesting to see how well your nose section holds up.  I originally made mine from balsa as part of the 1/8" sheet fuselage core (see pictures on my plan), but the model flies so fast that after a couple of months it was very chewed up.  My solution was to insert a section of lite ply; this has held up well over the last year. 

My suggestion for your design would be to make the nose core forward of the canopy from hard balsa.  You might also want to extend the ply doublers aft to the rear end of the canopy so the nose won't snap off at the intakes.

One question on your plan - it looks like the wing and engine pods are further forward on the top view than they are on the side view - am I seeing that right?

I like your approach to the wing.  I'm tempted to try this at about 12" span.

Mike

  
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Sky9pilot
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Re: Me-262 Jetcat
Reply #33 - May 28th, 2018 at 12:03am
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Here's a link to my Scimitar plan.  I drew it at 1/8" sheet fuselage with 1/64" ply doublers on the nose.  Of course that could be increased to 1/4" sheet. I will build using the lighter 1/8" sheet.  Here's a link to the plan: Scimitar Plan
Tom
« Last Edit: Feb 20th, 2019 at 11:08pm by 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: Me-262 Jetcat
Reply #32 - May 27th, 2018 at 10:06pm
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I liked the performance of the 262 at 17" so I drew my plan to 17" with the built up wing but I used a cracked rib structure rather than cut out ribs. Still have to calculate the CG.
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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MKelly
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Re: Me-262 Jetcat
Reply #31 - May 27th, 2018 at 5:25pm
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Look forward to seeing it - are you going to make it bigger?
  
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Sky9pilot
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Re: Me-262 Jetcat
Reply #30 - May 27th, 2018 at 3:09pm
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HPA...That was my first exposure to Catajets!!! They are highly addictive! I'm definitely getting the itch to build some more.  I've borrowed the built up wing from your 262 in my Scimitar CAD drawing. Which I'll post later.  I like the looks of it!  I'm also setting the incidence to 0 degrees for wing and stab.  And plan on using gurney flaps for trimming.
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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MKelly
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Re: Me-262 Jetcat
Reply #29 - May 27th, 2018 at 10:58am
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Thanks Tom.  I don't know if Henry intends to publish or distribute the Me-262 plan - I'll ask him.  I cobbled the Scimitar up from three-views and pictures.  There's some summary information in the Catajet thread on HipPocket beginning on post #507:

http://www.hippocketaeronautics.com/hpa_forum/index.php?topic=3985.500

I updated my Scimitar working drawing with a few notes and pictures but the PDF is too big for the file attachment limits here.  I've attached a JPG image of it.

If (when) I make another I'll probably scale it up a bit, maybe more like 9-10" span, and I'll reduce the amount of enlargement on the stab from 133% to something more like 120%.

Having some way of adjusting the stab angle is critical for this small, fast jetcat.  I used a nylon jackscrew with a music wire pivot, but you could use shims or some other method.  It's very sensitive - I usually adjust the 0-80 screw 1/8-1/4 turn max when making changes.

The wings are flat (no dihedral) so the washout is important - I also attached a slide showing how I approached sanding washout into the sheet wings.

If you make one please post some pictures and let me know how it flies for you.

Mike


  

( 182 KB | 37 Downloads )
Scimitar_JetCat_Plan_Kelly_2017.jpg
( 66 KB | 26 Downloads )
Sanding_Washout_Into_Sheet_Wings.jpg
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Sky9pilot
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Re: Me-262 Jetcat
Reply #28 - May 25th, 2018 at 8:20pm
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Wow Mike...gonna have to build me those two Catajets...outstanding flights from both birds!  Do you know if they sell just the plans for that 262?
Is the Scimitar a kit also or did you take that off of some Jetex plan?
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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Re: Me-262 Jetcat
Reply #27 - May 25th, 2018 at 2:45pm
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Had a great day flying the Me-262 and Scimitar jetcats yesterday.  Pleasing flights from both.

https://www.youtube.com/watch?v=r3Q0muu1-3w&t=9s

Mike
  
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Re: Me-262 Jetcat
Reply #26 - Apr 23rd, 2018 at 11:46pm
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Well done...looks like you've really got her trimmed out!  She transitions well from the launch power to glide and the glide looks really flattened out from the first video!  Just outstanding!!! 

Now I've got to build another catajet!
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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