Fast Foam (FlyFly) BAe Hawk 90mm EDF - Page 6 - RC Groups
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This thread is privately moderated by Herb, who may elect to delete unwanted replies.
Jun 21, 2012, 07:37 PM
ken kalynuk, winnipeg CAN
kenair's Avatar
Herb, thanks for posting the product links, the HK $39.00 gear seems to stand well on that landing in the video clip.

Could you post a couple more photos of the balsa stop block, is if forward of the nore gear, I'm a bit confused here.
thanks - ken k.
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Jun 22, 2012, 02:22 PM
Lithium Member
Herb's Avatar
... Sold the fan and motor for $20 to a guy at the field ... for an electric swamp boat.

Hi Ken,

It's just a wood block placed behind the nosegear strut, with maybe 1/2mm clearance.

It prevents the strut from bending back on takeoff and possibly cracking the nosegear plastic mechanism.

Ply would be even better than balsa I think now.

The mechanism is fairly inexpensive - and interchangeable between mains and nose - so I bought from HK a spare set, just in case. I can always use it in the Mirage.

Jun 22, 2012, 03:14 PM
ken kalynuk, winnipeg CAN
kenair's Avatar
DOOH! Thanks, I get it now, the gear retracts forward into the well, what was I thinking... appreciate the photos. -ken
Jun 25, 2012, 02:34 PM
Lithium Member
Herb's Avatar
You'r welcome ... I've had no more issues with the LG ... If I do find problems I'll post here.
Jul 09, 2012, 01:39 PM
Lithium Member
Herb's Avatar
I tried a new Gens Ace 4000 9S pack (3S x 3) pack in the Hawk and it almost melted my connectors and got all my 12ga wiring hot ... that CS 12-bladed fan sounds cool but is a real amp HOG.

Thinking of taking that fan out and putting in a WeMoTec Midifan or some other more efficient fan to reduce the power consumption and get longer flights ...
Jul 19, 2012, 03:30 PM
Registered User
erh7771's Avatar
Best sounding Hawk I've heard to date!!
Jul 19, 2012, 03:44 PM
Hawk Fanatic
SkylineFlyer's Avatar
Herb, what CG did u go with?
Jul 19, 2012, 07:42 PM
6 months to finish a rtf
pulsery2k1's Avatar
Hi Herb

thanks for the link , nice build lots of good info .
mine is 95 % complete aircraft weight 74 oz , less battery
the tissue and finish epoxy mixed 75/25 alcohol worked very well

I when with full flying tail but redesigned it , I like this over the
CMP - t-45 much nice flying model .
Jul 20, 2012, 11:36 AM
Lithium Member
Herb's Avatar
That's a good weight !

Mine had major strengthening done in the wing to make it more rigid (see pics above) and improved ducting. And I have a fairly big motor, a heavier fan and a 120A HV esc.

What struts & retracts did you end up using?

My CG is where the instructions say it should be. In flight it's actually quieter now since I plugged that huge resonating esc hole in the foam behind the fan.
Jul 21, 2012, 10:57 PM
6 months to finish a rtf
pulsery2k1's Avatar
for retracts I used 3 of these

the struts are the mains from 1400mm fms P-51 and the nose
strut is from the 1400 mm fms t-28 , not scale ,but light and they
work well in the grass
I did get these , but to save weight I used the above
I also got the scale metal legs , but opted for the weight saving .

I also reinforced the wing with a hollow carbon spar

jet is complete (except decal's ) with telemetry an extra coat of clear
and a center drop tank , aircraft empt weight is 78 oz (less battery )
in the van for Maiden tomorrow
Jul 22, 2012, 12:44 PM
Lithium Member
Herb's Avatar
Good luck with it, you should not have any problems
Jul 25, 2012, 04:47 PM
6 months to finish a rtf
pulsery2k1's Avatar
finally maiden after the nose wheel was damaged on our grass runway
sunday , then a rain day and 2 very windy days.

model flew great ,fly's like a trainer

the wind to day was 12-17 with a crosswind on a very narrow and
short paved runway - got some minor damage when the model got blown
off the runway on landing

BAE Maiden Flight (4 min 26 sec)

to save weight I didn't do rudder , but I will do it now .
all up flying weight 94 Oz
Last edited by pulsery2k1; Jul 25, 2012 at 05:17 PM.
Jul 25, 2012, 05:14 PM
Hawk Fanatic
SkylineFlyer's Avatar
That looks great! Love the paint scheme.
Aug 07, 2012, 01:16 PM
Lithium Member
Herb's Avatar
Originally Posted by pulsery2k1
finally maiden after the nose wheel was damaged on our grass runway
Very nice Pulser !! Yes she is a very good flier.
Sep 02, 2012, 10:55 PM
SoCal, Year Round Flying!
bmiller's Avatar
Herb you left the field too soon today!
Longs blue hawk took off , did a couple laps, suddenly half the wing ripped off and then the ensuing corkscrew into the ground from 100ft up.
Nose broken/chewed up back to the intakes. We gathered up all the pieces, Looks fixable.
Wing broke where it meets the fuselage side. He didn't have a spar in it.

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