Comp ARF BAE Hawk build thread
04-22-2009, 10:56 AM
#51
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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
it IS possible using controls to CLOSE the inner doors when the mains are down!
I just wanted to save that complication
THANKS
04-22-2009, 11:13 AM
#52
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
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
04-22-2009, 12:27 PM
#53
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RE: Comp ARF BAE Hawk build thread
ORIGINAL: digitech
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.
ORIGINAL: GrayUK
Whats the news?
Paul
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.
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
04-23-2009, 09:57 AM
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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
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
04-23-2009, 12:00 PM
#55
Thread Starter
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
There is a Composite ARF meeting in Germany 1-3 May and we expect three Hawks to be flying there.
Dave Wilshere
04-23-2009, 12:37 PM
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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
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
I look forward to seeing yours, will you have it at Chalgrove? who knows i may need to buy one....[X(]
Paul
04-29-2009, 02:13 AM
#59
Thread Starter
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
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
04-30-2009, 09:03 AM
#66
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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?
04-30-2009, 12:20 PM
#67
Thread Starter
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
regards
Leaving for Germany in a few hours, will come back with the last information you need
Dave
05-06-2009, 02:21 PM
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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!
I am finished with the decorations, flying soon I hope!
05-11-2009, 07:28 AM
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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
it is a nice weight saving over the original and quite easy to install, THANKS
05-11-2009, 12:06 PM
#72
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
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.
05-17-2009, 02:37 PM
#74
Thread Starter
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
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
05-18-2009, 07:21 AM
#75
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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?
also are you adding a smoke system?