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Posted by Cuddles | Jun 21, 2013 @ 07:49 AM | 1,990 Views
Here's the photos of my trip to Le Bourget 2013.
I was lucky enought to meet Sergey Bogdan, the Chief test pilot of Sukhoi!
He's a nice guyb and he was there to demo the Su-35; he's also testing T-50 PAK-FA. His demo was really impressive, Rafale demo looked pale in comparison......Continue Reading
Posted by Cuddles | Feb 15, 2012 @ 11:00 PM | 3,007 Views
Two years ago I fell in love with this wonderful ship.
Data research was really hard but I stubbornly looked under every stone and now I believe to have enought infos to start building.


From "Ships that fly",JOHN R. MEYER Jr

Overlapping the events just described in connection with SEA LEGS was a
series of developments within the Maritime Administration (MARAD) that
started in 1955. These were sparked by the commercial application of
hydrofoils in Europe and the researchb eing sponsoredb y the U.S. Navy. The
Maritime Administration Coordinator of Research, Charles R. Denison, was
enthusiastic about the future commercial potential of the hydrofoil and in
1958 sponsored an extensive parametric study carried out by Grumman
Aerospace Corporation and its affiliate Dynamic Developments, Inc. The
purpose of the study was to determine the type of hydrofoil craft best suited
to future express-cargo and passenger applications and establish design
criteria for such craft. Speedso f 50 to 200 knots, displacementsfr om 100 to
3,000 tons, and ranges from 400 to 3,600 nautical miles were considered. Foil
section shapesa nd arrangementsp, ower plants and propulsors,h ull form, and
control systems were treated including several preliminary designs for
oceangoing ships. Based on the favorable results of this study, MARAD
contracted with Grumman in 1959 for design studies for two test craft. One
was to have a conventional powerplant and the other a provision...Continue Reading
Posted by Cuddles | Jan 20, 2009 @ 04:59 AM | 2,972 Views
I don't know!
Posted by Cuddles | Jun 18, 2008 @ 11:10 AM | 5,240 Views
Since weather remains awful, i've decided to slightly extend the building season and building a kit...
Well lads...I can't remember wich was the last kit i bought....but i know i quitted buying because every time I was'nt happy about something.
It's been a while since i wanted to enter in the thermal duration world, those big gliders really have appeal.
So I looked for an entry level RES ship over here and the response was Art Hobby Thermic RES.
This is an impressive piece of kit and the building is pretty straightforward, but i wanted to customize it for my requirements: lightness .
I replaced those non airfoiled tailfeathers with some slightly enlarged ones made of contest 5mm balsa: 9g weight saving with a bigger K and no deadband problems.
I also discarded those bowdens and replaced with dyneema/carp fishing elastic.
Now the model is 95% done, i'm waiting for a synthetized receiver and should make some battery packs.
Planned weight is 670g...should float
Posted by Cuddles | Jun 04, 2008 @ 07:00 AM | 4,708 Views
I've finally maidened my Apogee!
I was expecting some tail heavy behaviour but i was wrong!
The first javelin launch required some three clicks of up trim.
A rather gentle DL and i was very high
Weather was overcast/no wind but i managed to spec out it.
Looking forward for some fine weather flying
Next time i will drag someone for photos
Posted by Cuddles | May 27, 2008 @ 10:06 AM | 6,183 Views
No maiden flighy yet for my Apogee, miserable weather again. So yesterday evening i've done that wing fillet you can find on almost all Drela projects: he says that, once installed, the plane is noticeably quieter on fast fly-bys, sure a good thing

On my first Apogee that fillet didn't come out as hoped: it was small, rough and rather brittle and was a lot of work too.
After some head scratching i've devised a simple and effective method.
You need some thin foam (1mm) some scrap 36g/mq kevlar, laminating resin and your filler/thickener of choice (i used some chopped fiberglass).

First you need to print the template, (squares are 4mm)cut it and tack on the thin foam. Then you need to cut the foam with a sharp cutter.
You now have this little half-moon of foam, but before to fit and wrap it on the intersection point you need to put some scotch tape on the wing.
You start with two stripes just outside the front locating pins and then some tape between(top and bottom). Take care not to have any wrinkles.
Rub the taped surface with some vaseline and screw the wing to the pod.
Now you can wrap the foam half-moon by tacking with some foam-safe cyano the inner central part to the pod and wrapping the two points under the wing, wedging the very points between the pod and the wing.
You take the kevlar, lightly mist with repositionable spray glue and put on a piece of baking paper.
With some sharp scissors you then cut the kevlar half-moon slightly oversize
(red line as reference), and respray a little and put on the foam half moon.
You then again wedge the points and tack with FS cyano.
Then you make a first small batch to saturate the kevlar, let harden a little and mix a second batch with your filler to the consistency of silicone using this to add some meat to shape.
Once cured you detach the wing,sand to shape using an half circle file and dissolve the foam with a small brush and nitro.
Lots of words but little work actually
Posted by Cuddles | May 22, 2008 @ 09:58 AM | 5,556 Views
Oh boys, there's a lot of work involved in this...
Josť Bruzual of ECM is really not going to make money with this!

I've read tons of threads about composite construction and molding, all the SG threads, JosŤ's thread about his beta version and so on.

So since i wanted badly that Apogee i had to scratchbuild it cause I am a scratchbuilder but if you don't have time...:
http://www.rcgroups.com/forums/showthread.php?t=436102

Last year i built the beta version wich was flying well but was a bit overweight
(about 135g...145g after lots of crashes)
With the beta under my belt i could see what to improve or to try.
I changed about everything...kevlar pod instead of FG, core materials, glassed depron tailfeathers instead of balsa, V-mount instead of two parts stab and 0,5mm carbon pushrods instead of dyneema and elastic.
And I struggled to achieve those weights wich are far from perfection anyway
Now that is final assembly time i feel very pleased of my work and i feel very confident about results.
I'm looking forward to post some completed photos and maiden shots as well.

Regards,
...Continue Reading
Posted by Cuddles | May 20, 2008 @ 10:09 AM | 5,255 Views
I've finally maiden my Stradivari, a competition DLG made in Italy by Claudio Zavagno who is the Icefire designer.
Will be my wind plane.
The wing is molded and made of rohacell, main chord is 19mm.
She's a bit on the porky side @ 320g...but the wing is extremely stiff.
I have balanced her on 80mm from LE with 25g of lead but is nose heavy right now.
She likes to fly with her tail raised because of incidences...stab incidence is positive here i need discover her thermal signaling habits

Here is a video:
http://www.rcgroups.com/forums/showthread.php?t=867042
Posted by Cuddles | May 16, 2008 @ 09:58 AM | 6,204 Views
I was looking for some updated imagery in Google Earth with Panoramio layer on...
While checking the place where i use to spend holidays, i've found myself in a Panoramio photo!
Now that's very odd to me.... but i suppose it can happen
The place is Costa Dorata, in Sardinia while the photo was taken near the small harbour.
Last year my Apogee was really beaten from thorny bushes and granite masses.
Yes...sailin' and soarin' for 3 weeks in this paradise is fantastic
Posted by Cuddles | Jan 22, 2008 @ 10:41 AM | 7,265 Views
I have better photos of those here:
http://www.rcgroups.com/forums/showp...postcount=1748
I was afraid about an excessive yaw stability with those barn door verticals
and props so close one each other, but it was right on the spot!
Thomas Nelson created a fantastic plan to work with, he deserves much of the credit indeed
http://www.rcgroups.com/forums/showp...2&postcount=18

I know that this beauty deserves a paintjob but i don't want to spoil its performance; i am evaluating those three attached schemes.
Posted by Cuddles | Jan 21, 2008 @ 11:18 AM | 5,287 Views
Here is the link for the video:
http://www.rcgroups.com/forums/showt...73#post8979570
This is my dad's office, about half badminton court.

Ciao

Francesco
Posted by Cuddles | Jan 17, 2008 @ 06:06 AM | 5,486 Views
Here are the plans!
Posted by Cuddles | Jan 17, 2008 @ 06:01 AM | 5,932 Views
This is my latest effort in the LRF field.
Here are some specs:
25 cm wingspan
20 cm lenght
mosfet mod
Picco-Z tailprop and motor
3mm i.d. coil
Construction material is 1mm hotwired depron, 3mm depron for the fuselage, a 15cm piece of 0,8mm carbon pultruded rod and a small lenght of carbon capstrip.

It can fly in a very small room!
I'll post plans soon.