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Tomahawk-Design Bae Hawk 1: 3.5

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Old 12-12-2012, 07:12 AM
  #701
heraldoboldrin
 
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

guys.. what servo arms are you using in the rear gear doors?
and the front small center door are using air cilynders? what size?

regards

heraldo
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Old 12-12-2012, 07:32 AM
  #702
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

guys.. what servo arms are you using in the rear gear doors?
and the front small center door are using air cilynders? what size?

regards

heraldo
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Old 12-12-2012, 03:20 PM
  #703
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

The big ones from Hangar 9. I think 1.5"
front doors are servos. JR 3421
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Old 12-12-2012, 07:33 PM
  #704
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

ok but the small front door behind the gear leg, servo too?
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Old 12-12-2012, 08:45 PM
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

you can do a couple of things. air will work with a cylinder. probably use a bvm button to use to close.
I made mine mechanical using a tow wire from strut.
Scott
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Old 12-14-2012, 10:34 AM
  #706
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Hi Guys,

it´s been a while - but i achieved some little progress!

As Craig has convinced me to do a top hatch for easy access, i tryed to do a good job.
I have tryed to do it as light but yet strong enough to withstand future combat training flights.

As pictures tell more then words, i will just enclose a few pictures. If someone has a question to it, just drop me a line.

Just for information, complete gained weight of top hatch and framing = + 120 gram.

The i have receid my landing gear back from Peter Cmyral of Austria who converted my landing gear to electric function and breaking.
I have enclosed a few pictures as well.

One more week of work then i am off for holiday, i should make bigger progress during that time.

Cheers

Thomas
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Old 12-14-2012, 11:29 AM
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Very Very nice!!
Scott
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Old 12-22-2012, 03:38 PM
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Just finished seamless hatch on my hawk
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Old 12-22-2012, 03:40 PM
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

here are the pics of the hatch
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Old 12-22-2012, 03:41 PM
  #710
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

pics
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Old 12-22-2012, 05:43 PM
  #711
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Nice!
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Old 12-22-2012, 11:50 PM
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Nice work Roy!

Thanks to Thomas' (alpenglider) recommendation I also have had my gear converted to electric in Austria. Very simple system and great quality. I now have no air in my Hawk - mission accomplished.

Cheers,



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Old 12-23-2012, 06:28 AM
  #713
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Tobba

What was cost in Euros to convert gear?

Is there a web page link? Thanks Roy
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Old 12-23-2012, 09:57 AM
  #714
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Roy - 800 euro for the conversion which includes the brakes. Then freight costs on top. No web address - private guy in Austria doing the conversions.


Includes conversions and control unit. The control unit has a built in failsafe so it remembers the last position of the gear switch. (ie: it wont work until the gear switch is in the same position as when turned off) I also purchased a Projet door sequencer which has a built in false safe link. I had hoped to run the sequencer through a PB Cockpit but will see how this comes together upon setup. I'm not sure the cockpit can delivery a failsafe for the doors.

Other than that quality workmanship with a simple setup. Runs on a 3S lipo for at least 50 cycles... So 1 charge for a weekend and forget about your gear. I tried it on a LiFe as I feel happy the charging in the model and it slows the retraction down by maybe 1-1.5 seconds.

Brakes are pretty amazing - totally proportional. They run on a Y lead or can be run on two channels independently.
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Old 12-28-2012, 11:49 AM
  #715
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Here are a few 'in production' pictures of the GBRJET Electro-Brake units for the Tomahawk 1:3.5 Hawk being made for 5 customer Hawks.

Our design is derived from the full size Hawk brake hub and replaces the plastic moulded parts supplied with the kits and the air driven brake parts to give a realistic 'semi' scale appearance. The hub and 4 caliper pots uses the lower leg as an anchor device and below this hub we will fit the friction plate which is shortly going to be machined. Once done this will sit under the 'hub' and provide the proportional braking (either continual or pulsed) link to the wheel.

Wires are designed to exit the hub under the gear lower leg, as this is already rebated by the factory it will allow the wires to be totally concealed.

I will post more pictures of the fully assembled unit shortly.

marcs
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Old 12-28-2012, 03:19 PM
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Marc

Do you have all 3 legs of my Hawk???? [&:]

M
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Old 12-28-2012, 04:39 PM
  #717
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Yes don't panic

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Old 12-31-2012, 02:45 PM
  #718
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Getting ready to mount pipe and turbine . Photo shows perfection of the Tobba mount on the pipe, courtesy of our ANZAC friend from down under.

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Old 12-31-2012, 03:06 PM
  #719
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Love that pipe mount...

Any chance you might be able to provide some dimensional information, as I might be able to get a machinist buddy of mine to fab a set up for me?

Thx,

Bill
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Old 12-31-2012, 04:04 PM
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

I could trace it out and photograph next to a ruler . The pipe is in my buddy's shop and I won't get back in there till this upcoming weekend some time.

Roy
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Old 12-31-2012, 11:30 PM
  #721
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Tobba,
how much trouble would be it to get one of those pipe mounts??
Scott
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Old 01-17-2013, 04:43 PM
  #722
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

wings ready for clear coat. Now getting fuse ready for union jack.
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Old 01-17-2013, 07:39 PM
  #723
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Roy - WOW mate. Amazing. I cant wait to see the model finished.

Very, very cool.
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Old 01-18-2013, 04:32 PM
  #724
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Would love to take credit for this . A motorcycle airbrush artist did the work. She will be doing the union jack flag on the fuse. Will post pictures of that when done in 6 to 8 weks
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Old 01-19-2013, 12:50 AM
  #725
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Default RE: Tomahawk-Design Bae Hawk 1: 3.5

Hi Roy

What did you use to cut the hatch out? Did you lay carbon cloth inside first?

Regards
Mark
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