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Airworld Hawk Building thread

Old 08-23-2006, 12:14 PM
  #251  
mick15
 
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Default RE: Airworld Hawk Building thread

Iv'e completely redesigned the flap mechanism, because there is nothing scale with the model flaps.
where there are four hinged inspection covers on the full size I have cut the top off the wing skin and removed the rear web which is what prevents the scale flap retracting into the wing. I have installed a new spar/web further forward and fitted the mechanical link to the centre hinge post so the push rod moves inside the centre pylon as full size and you don't have to slot out the flap vane to clear the push rod

With this all assembled and working the flap vane now adopts the correct position when 50 degrees of landing flap is deployed. The flap hinge fairings are interesting ( I'll take some pictures when I attack the second wing panel) they have like a teardrop formed into the hinge cover which is split in such a way as to leave no gap when the flap is up, very clever, this teardrop is formed from acetate sheet pulled round a former with the aid of a heat gun. I'm sticking with the 8411 servo because the plate is machined out for them besides the two I have just bought seem to have much better gearboxes and perfect resolution is not really required for flaps anyway.

Are you taking yours to St Athan Geoff

more later m
Old 08-23-2006, 12:20 PM
  #252  
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Default RE: Airworld Hawk Building thread

flap hinge
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Old 08-24-2006, 02:47 AM
  #253  
Geoff White
 
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Default RE: Airworld Hawk Building thread

Hi Mick,

Yes, assuming everything is OK with the model I do intend taking it to St Athan.
Old 08-30-2006, 02:35 PM
  #254  
Geoff White
 
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Default RE: Airworld Hawk Building thread

Hi everyone,

Very happy to say I have flown my Hawk this afternoon and it flew like a dream. I am very excited by this plane, not because it hard to fly, quite the opposite, I am excited because it flies so well!

I had three flights which included Loops, slow rolls and 4 point rolls etc and it was great.

As far as landing is concerned it seems very easy to land, probably due to the trailing linkage on the struts.

Looking forward to putting more flights on it ASAP.

My good friend Dick Spreadbury was able to take some photos of the test flight and they are in a separate thread you get to here

http://www.rcuniverse.com/forum/m_4690061/tm.htm

Geoff.
Old 08-30-2006, 02:41 PM
  #255  
Dave Wilshere
 
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Default RE: Airworld Hawk Building thread

Geoff

So you are happy that I took money from you again! Always a pleasure...

When your Flash arrives you will be double happy!

Dave
Old 08-30-2006, 02:51 PM
  #256  
Geoff White
 
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Default RE: Airworld Hawk Building thread

Yeah, very happy Dave,

Thanks for all your support and help.
Old 08-30-2006, 04:16 PM
  #257  
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Default RE: Airworld Hawk Building thread

Geoff, Congrats!

How did you find the power - several have said a P120 would be sufficient?

So, is it going to be a 'Reds' paintjob or something different??

Rgds,
Mark
Old 08-31-2006, 01:45 AM
  #258  
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Default RE: Airworld Hawk Building thread

Hi Mark,

I have a AMT pegasus putting out 37lb ish thrust and it was crusing around at a 1/3rd throttle and only used full power on the verticals so yes I feel it could definately fly on P120. what the vertical s woudl be like? No idea.

As far as colour schemes, yes it was going to be Red Arrows but considering other schemes as well. Going to put 20-30 flights on it first before I do all the nice scale bits and painting.

Geoff.
Old 09-05-2006, 01:22 PM
  #259  
David Gladwin
 
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Default RE: Airworld Hawk Building thread

I will be at RAF Scampton with the Red Arrows next Wednesday, 13th. Any Hawk builder who wants a close up of something on the machine which I did not cover in the original CD should PM me and will get a shot of it for you.

Regards,

David Gladwin.
Old 09-06-2006, 02:35 AM
  #260  
Geoff White
 
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Default RE: Airworld Hawk Building thread

Thought you might be interested in some more photos of the Hawk in flight.

Thanks to Dave Wilshere for the photos! I think the third photo is superb, but I am biased!

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Old 09-06-2006, 04:46 AM
  #261  
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Default RE: Airworld Hawk Building thread

geoff they are all superb, can't waite to get mine in the air, see you at st a

m
Old 09-06-2006, 05:08 AM
  #262  
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Default RE: Airworld Hawk Building thread

More...

Nice equipment in this model Geoff...pity about lump ;-)

Dave
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Old 09-06-2006, 06:38 AM
  #263  
Geoff White
 
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Default RE: Airworld Hawk Building thread

Happy to change lump to a Booster or even a JC at a push if one was to appear on my doorstep
Old 09-06-2006, 09:31 AM
  #264  
Dave Wilshere
 
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Default RE: Airworld Hawk Building thread

Geoff

Charging your card now will be delivered 9.00am tomorrow..thanks for the order;-))

Regards

Dave Wilshere
Old 09-06-2006, 09:40 AM
  #265  
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Default RE: Airworld Hawk Building thread

that will teach you geoff!
m
Old 09-06-2006, 09:51 AM
  #266  
Geoff White
 
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Default RE: Airworld Hawk Building thread

[:@]Ah better cancel that credit card then!
Old 09-06-2006, 11:50 AM
  #267  
The boys Back
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Default RE: Airworld Hawk Building thread

Ali is supposed to be pickin mine up at Jet Power built and painted by Airworld in Red Arrows (i hope!!) so Dave, any photos would be a help with my documentation. whats the chances of you getting paint colour proofs?

Dave Stephens
Old 09-06-2006, 12:27 PM
  #268  
schroedm
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Default RE: Airworld Hawk Building thread

built and painted by Airworld in Red Arrows
Nice one Dave! Do you wanna swap it for a half built Hawk and a pack of polos?
Old 09-06-2006, 01:08 PM
  #269  
Jim Cattanach
 
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Default RE: Airworld Hawk Building thread

Does Airworld now supply a build manual with the kit, or is it still just a few photos?

Regards

Jim
Old 09-06-2006, 01:25 PM
  #270  
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Default RE: Airworld Hawk Building thread

Just a CD of photos at the mo.

Hans-Dieter spoke to me today saying that they are working on a new manual but also wanted to use my build guides so I best get my finger out!!

Rgds,
Mark
Old 09-06-2006, 01:31 PM
  #271  
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Default RE: Airworld Hawk Building thread

Thanks Mark.

Regards

Jim
Old 09-11-2006, 01:10 PM
  #272  
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Default RE: Airworld Hawk Building thread

Congrats Geoff

She looks great

Could you please advise me of how much aileron travel you have set up and how much you are using
Have you experienced any pitch changing tendencies when using flaps or speedbrakes etc ?

I will be test flying my Hawk next weekend and i am trying to pr plan everything

Congratulations again

Regards

Francois
Old 09-11-2006, 02:16 PM
  #273  
schroedm
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Default RE: Airworld Hawk Building thread

Hi Francois,

Test flying next weekend and not a photo posted during the build - shame on you!!

I think we will let you absolve yourself with a few pics here shortly

Rgds,
Mark
Old 09-11-2006, 02:47 PM
  #274  
Geoff White
 
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Default RE: Airworld Hawk Building thread

HI Francois,

I am using the exact aileron throw they recommend which is +/- 20mm with just a little expo. I found this to be just about right as it takes just over a second to do a roll.

Couldn't detect any trim change with speed brake open.

With the flaps there is a nose down pitch and the magnitude of the nose down pitch is directly related to speed of the model. I inadvertently found this out as I forgot to retract the flaps after some slow flight. Its nothing to worry about as at slow speeds it is only slight and I have just been manually adjusting elevator to get the right speed/rate of descent.

If you run the CG at the recommended position(120mm in front of tube) then it will fly fine but I found the elevator a little soft so I have moved CG back approx 5 mm. I recommend you don't use any less elevator than the recommend(35mm up and 30mm down).

Best of luck with the test flight.

Geoff.
Old 09-26-2006, 04:33 PM
  #275  
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Default RE: Airworld Hawk Building thread

Guys,

In an attempt not to do the same Red as everyone else, I am going to do one of the synchro pair. I believe it is Red 7, Jim Turner.

Can anyone confirm this info and also let me know the XX registration number and the other crew member. I believe there are always 2 names on the Arrows???

Thanks,
Mark

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