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Old 04-22-2009 | 10:56 AM
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Default RE: Comp ARF BAE Hawk build thread

OK well I don't have my gears yet! so perhaps will have to do that
it IS possible using controls to CLOSE the inner doors when the mains are down!
I just wanted to save that complication
THANKS
Old 04-22-2009 | 11:13 AM
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Default RE: Comp ARF BAE Hawk build thread


ORIGINAL: geh3

OK well I don't have my gears yet! so perhaps will have to do that
it IS possible using controls to CLOSE the inner doors when the mains are down!
I just wanted to save that complication
THANKS

the inner doors are the least of the problems
Old 04-22-2009 | 12:27 PM
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Default RE: Comp ARF BAE Hawk build thread


ORIGINAL: digitech


ORIGINAL: GrayUK

Whats the news?

Paul

no idea...
i spoke also to Thomas Singer , he does not understand eather, since it is a very forgiving airframe..
i think i blame it on :

being to Slow... and flicked out i must say there was crosswind when this happened.
what could also have happened , if the gear is out , the huge doors can cause also like 2 spoilers.
together with that crosswind it might caused it also to push it out of direction..

as much as i hate to say i think it was anyway a pilot error..
Hawk was never my cup of tea , but then i like the model very much..
it was not a radio problem , the turbine was never on failsafe or anything.


Sorry to hear that, nothing worse than a ‘don’t know’
I would just make a few points regarding Hawks.
I love them and have (as you know) designed and built many Hawks over the years.
The Hawk wing is not great (the full size was not either) and is susceptible to tip stalling.
The full size had wing fences and turbulators added to improve the tip performance.
It also had ‘toblerones’ fitted to the wing inboard to (I believe) produce a root stall ahead of a tip stall).
With the smaller wing these features (even when applied) do not have a major effect.
I have found that the wing needs to go out of scale and around 3 to 4 deg of washout incorporated.
Elevator movement can also be critical.
On The Fox Composite Hawk, Jim is VERY specific about elevator movement. He comments that excess movement will cause a ‘snap’. The new wing on his Hawk model has been changed and exhibits none of those characteristics.

I have not seen the wing on the Comp Hawk, so I cannot comment on it directly.
But these are just things I have learned over the years.

Once again, sorry about your loss.

Paul

Old 04-23-2009 | 09:57 AM
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Default RE: Comp ARF BAE Hawk build thread

It is also possibe to put both ailerons "up" a little to simulate washout
I hope C-ARF has the wing right. I have a video of one flying at Florida Jets 09... it appears in that video to be flawless
Old 04-23-2009 | 12:00 PM
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Default RE: Comp ARF BAE Hawk build thread

This Hawk is perfect, the design has been proven with now two prototype Comp ARF aeroplanes flying without issue. My own one is behind as I have been laid up with a throat infection. This aeroplane's designer also knows about Hawk's he won the last JWM with one he designed...that this is scaled down from.
There is a Composite ARF meeting in Germany 1-3 May and we expect three Hawks to be flying there.

Dave Wilshere
Old 04-23-2009 | 12:37 PM
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Default RE: Comp ARF BAE Hawk build thread


ORIGINAL: Dave Wilshere

This Hawk is perfect, the design has been proven with now two prototype Comp ARF aeroplanes flying without issue. My own one is behind as I have been laid up with a throat infection. This aeroplane's designer also knows about Hawk's he won the last JWM with one he designed...that this is scaled down from.
There is a Composite ARF meeting in Germany 1-3 May and we expect three Hawks to be flying there.

Dave Wilshere
Great news David, glad he has got it right.

I look forward to seeing yours, will you have it at Chalgrove? who knows i may need to buy one....[X(]

Paul
Old 04-28-2009 | 02:25 PM
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Default RE: Comp ARF BAE Hawk build thread

Hi Dave

Just got my Red Arrow today, and I am very happy about the constantly superb quality

JPZ

C-arf rep
Old 04-28-2009 | 04:16 PM
  #58  
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Default RE: Comp ARF BAE Hawk build thread

Some pics

JPZ
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Old 04-29-2009 | 02:13 AM
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Default RE: Comp ARF BAE Hawk build thread

JP

Excellent. You at the meeting this weekend?

Paul, Sorry in Germany at the C ARF meeting so won't make Chalgrove :-( Really been struggling with time on the Hawk, so it's still not done...

Regards

Dave
Old 04-29-2009 | 02:46 AM
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Default RE: Comp ARF BAE Hawk build thread

Dave

yes I am

See you

JPZ
Old 04-29-2009 | 06:07 AM
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Default RE: Comp ARF BAE Hawk build thread

Hello JP

Very nice Hawk from CARF.....
With the scale landing gear it will be very very nice ;-)

See you
Jean-Philippe
Old 04-29-2009 | 11:28 AM
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Default RE: Comp ARF BAE Hawk build thread

JP

Excellent, see you there.

Few more shots of various bits. These are the sports scale gear.

Dave W
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Old 04-29-2009 | 11:48 AM
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Default RE: Comp ARF BAE Hawk build thread

What is the pin diameter that holds the struts to the LG main?
Old 04-29-2009 | 01:55 PM
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Default RE: Comp ARF BAE Hawk build thread

10mm (3/8")

Dave
Old 04-29-2009 | 02:53 PM
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Default RE: Comp ARF BAE Hawk build thread

Excellent, some robustness there, my FLASH has some pin breakage with the supplied 5 mm ones, I changed them to 6mm
Old 04-30-2009 | 09:03 AM
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Default RE: Comp ARF BAE Hawk build thread

Dave, from the above pics, it appears that the thrust tube is held in by the carbon fiber bell at the front, and the fuse opening at the back, correct?
Old 04-30-2009 | 12:20 PM
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Default RE: Comp ARF BAE Hawk build thread

Yes, small L brackets off the bell mount, hole at the fuselage rear holding outer tube

regards

Leaving for Germany in a few hours, will come back with the last information you need

Dave
Old 05-05-2009 | 03:18 AM
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Default RE: Comp ARF BAE Hawk build thread

Hawk pixs inc my nearly finished Red Arrows
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Old 05-05-2009 | 04:12 AM
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Default RE: Comp ARF BAE Hawk build thread

O.K.
I'm joying you guys building this Hawk. I got the T-45 color scheme.
But my will be burning electron fuel.
Old 05-06-2009 | 02:21 PM
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Default RE: Comp ARF BAE Hawk build thread

I found an additional NAVY hi-viz scheme for the T-45 version so I added it to mine + an MDC in the canopy
I am finished with the decorations, flying soon I hope!
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Old 05-11-2009 | 07:28 AM
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Default RE: Comp ARF BAE Hawk build thread

Tam, I recieved your very well made thrust tube assy
it is a nice weight saving over the original and quite easy to install, THANKS
Old 05-11-2009 | 12:06 PM
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Default RE: Comp ARF BAE Hawk build thread


ORIGINAL: geh3

Tam, I recieved your very well made thrust tube assy
it is a nice weight saving over the original and quite easy to install, THANKS

Thanks,
I got my all servos install. This Hawk is so easy to built. A lot room. I can almost go inside.
Now need to work on the ducting system for twin fan.
I'll also made the ducting turbine conversion kit for this plane.
Old 05-17-2009 | 12:02 PM
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Default RE: Comp ARF BAE Hawk build thread



Ah, There you are...</p>

Did she fly yet Dave?</p>
Old 05-17-2009 | 02:37 PM
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Default RE: Comp ARF BAE Hawk build thread

A.

No in the next week, probably test fly at Scampton next weekend-been a bit slow with staff having holidays and me having to work longer hours than my usual 12!, plus shows, family etc etc.

Dave
Old 05-18-2009 | 07:21 AM
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Default RE: Comp ARF BAE Hawk build thread

Dave... Please post some pics of your tank, radio tray and turbinesupport equipmenttrays please...
also are you adding a smoke system?


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