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01-10-2015 01:20 AM  3 years agoPost 1
icanfly

rrElite Veteran

ontario

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Brrrrrrrr, it's very windy out, as the past week has been in the tens f, almost forgot those temps existed then wham, never stopped me from testing a heli however.

So here's a project my work area has been busy with lately,

made up a set of scale blades from my old woodie 550 Hirobo ones with Robbe heat wrap, took a couple of mm off the plastic grip mounts, turned out awesome. Landing gear was too high up in the front so the tail always dragged, the tail fin drag wire was bent upward at the end so it doesn't hook like when it stuck almost straight out. The front landing gear was recessed in the cano by an additional half an inch thereby dropping the nose and giving the bird more accurate scale look. Put nav lights with led brights powered by a single c 400mah lipo. Changed up the tail servo by putting it as close to the boom as possible requiring two new holes on the hangars and a bit of filing of material so the servo would fit super close to the boom inside, that way the control rod cleared the inside tail boom nicely. This lead to removing a balsa spacer to lift the main 500 chassis high which no longer became necessary. now the rotor dropped down by the same amount.

The original Blade 5003d received a fbl conversion with the head coming from an Align 500 clone, gyro on the outside of the main shaft area and the receiver moved to on top of the boom block, this way they can be viewed from outside through the scale exhaust holes and venting mesh to confirm status. Landing gear was redone with better hand made bell cranks, the ones on it when I got it were utter crap and the axles made of 4mm cf, they were replaced with ss and alu. Tail wings were glued on slanted so they came off and were redone, Unfortunately I found out the side nav lights for this heli go on the outside of the tail boom wings, the side navs went on the gunnery pods, they look fine there. A pic of the nav lighting to come, Christmas never looked so fun.

Tail was completely refitted with fbg and epoxy, reshaped to allow the tail housing to slip in the boom cleanly and the canopy tail housing consolidated to the tail pulley housing where the screws are to fix them as one unit, that makes them stronger and adds more rigidity to the tail boom. The tail rotor is on the wrong side but it would be too much trouble to turn the owb upside down than to stick with rs rotor, it's fine. the semi symmetrical blades I made up would not have worked with ccw main rotation.

After th fbl conversion was done it was tested wo the canopy to assure everything was set up properly. Go back in my gallery and see the grass slasher effect when things had not been 100%. You think this was anything, not so much. Earlier this week when I dove into the project to wrap it up shortly, I discover something very interesting, very concerning too. What do you think would have happened if the tail rotor hub came off during flight? This is why you have to be super cautious when working on or getting someone else's project, THE TAIL HUB GRAB SCREW WAS LOOSE, from the moment I got it and AFTER the fbl conversion hover test months ago the loose 4mmx4 set screw caught only a few days ago, sheeeeet mon, so, ever so fortunate.

Something positive happened today with it, this morn when I lowered the chassis in the canopy, it took on a more precise scale appearance. It will be a blast to fly when fully completed in a day or two, details details will they ever cease. New top cano led with faster flash, some mounting screws for the tail and forward landing gear, one or two minor details, flight time, I think I like this one now, it isn't mine.

And, the original Blade tail blades? crap, replaced with Align cf, I think I have to paint them black, entire paint may need to be redone from all the handling. ALL BLACK flat, finish, I'm really digging on it lately, the Not an Air Wolf AirWolf paint scheme, can't call it Night Wolf, how about Air Wuff?, lol or black out the windows and call it a "Drone" aghhhh, lol. How about Blackie, the Air Woof, lol.

What u got this winter?

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01-10-2015 06:02 AM  3 years agoPost 2
wc_wickedclown (RIP)

rrProfessor

long beach calif

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looking good

Insha Allah made in america

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01-10-2015 12:00 PM  3 years agoPost 3
jackp332

rrKey Veteran

Claremont, Nh USA

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That's quite the project you have going there! I have a full flightpack and an os50hyper but no home for it yet..... Don't know what it will be but I have my eye on the classifieds daily.

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01-10-2015 02:19 PM  3 years agoPost 4
icanfly

rrElite Veteran

ontario

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seems working on a project heli is becoming a yearly ritual, next year could be an older 30/50 TT Raptor 120o swash fbl conversion, last year it was the Hirobo Shuttle which was torn down and completely overhauled to clean, check, modify, and make it work better than stock when possible. Revisiting the shuttle in summer was to improve on the 120o swash servo layout, the main head improvements, to run the os30, fix the fbl system during flight testing, and to improve upon any aspect not fit for a worthy machine.

sure takes some time to discover improvements unlike a hobby shop environment where time is money.

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01-11-2015 04:16 AM  3 years agoPost 5
icanfly

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ontario

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finally got through the nav lighting and most all of the mechanics, a landing gear needs looking at and the tail belt attachment to the pulley, after the gear servo is completely fastened and checked for travel. The chassis needs a bit of lifting in the back portion and a plate in the end of the boom for support could be made up in short order, enjoy the night lighting,

I tried to fly my 300 at night with navs like the black wolf but it was trickier than I wanted to continue putting the heli at risk, I did manage a few turns and figure 8s, flying by led's only, not so easy.

update, nearly nearly done. When I plugged the 500 in and pumped the servos to check for everything functioning properly, ooooops, status light on the gyro is blinky, that can't be good, deduce the bec in the Blade 500 esc is not up to 4 all digital servos and three outboard electronics, no siree, dangnabbit so close I thought it was ready. Very fortunate the heli wasn't put to any pitch pumps during hover test of the fbl conversion, ohh so lucky, outboard bec to come.
pic of the nose landing gear riser on it's way.

.

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01-12-2015 08:24 AM  3 years agoPost 6
Ben1986

rrNovice

Birmingham

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Winter is good time for building RC heli kits, but not good for flying.

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01-12-2015 09:05 AM  3 years agoPost 7
Kirby James

rrNovice

USA

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Winter is good time for building RC heli kits, but not good for flying.
You are right Ben winter is good for building RC Heli kits but not for flying because winter is mostly windy.

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01-12-2015 09:20 AM  3 years agoPost 8
EEngineer

rrProfessor

TX

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Winter is good time for building RC heli kits, but not good for flying.
Huh?

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01-12-2015 12:34 PM  3 years agoPost 9
Retired2011

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Lee's Summit, MO

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Not as windy as Spring!

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01-13-2015 09:48 PM  3 years agoPost 10
icanfly

rrElite Veteran

ontario

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sooooow, here's what has transpired between the last post and now,

nose dropped and tail leveled to the eye.

I did a quick hover test this afternoon to see if all was well on the Blade 500fbl conversion Airwoof canopy build, because little details such as a too tight belt and too long tail servo control rod required the chassis come out of the canopy for about the twenty fourth time. C rod, belt loosened, ends checked in the programmer, tx gains and gyro gains played with back goes on the canopy and it's time.

landing was not so pretty after it was very nicely on the ground first and settling. I made the mistake of putting some right aileron in the swash and it leaned over to tap the blades on the grass below the snow. When a heli is on the ground the cyclic control has to be retarded by 45deg. I think it's a bad mistake of mine to tug on the throttle hold switch and pull slightly away from the tx, rather you have to give cyclic a smidgen of LEFT aileron and pitch to steer it left. I'm landing nose in so some confusion is ever present, my fingers would have to pull on throttle hold and push 10:30 cyclic stick at the same time to level it from the airborne leaning aspect.

The swasck on the ground caused the original single wire tail protector to rip partly out of the tail fin so I made up this little beauty. Soft metal wire this one is it can be made from coat hangar wire next.

The heli was slightly nose heavy and forward flight showed some very solid potential (from the very limited forward motion I was able to get out in a small back yard space).

No wind, calm and 10f, finger tips got frosty numb quickly. This build has been intensive and kinda fun, interesting to see where areas of improvement are. In the canopy, it will need a brace across the top of the bearing and servo mounting plate to the inner canopy shell to stop the canopy from swaying around while the brace will also add to the stability of the entire heli, that's almost it. A servo slow for the landing gear and an 8 channel rx (and a new set of blades lol) the rest is fly time.

keyuel

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01-25-2015 02:51 PM  3 years agoPost 11
icanfly

rrElite Veteran

ontario

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winter projects abound,

I took a pair of woodie 550 blade, 3d symmetric foil, and reduced them to 425mm fit on the Airwoof giving it a more realistic scale look and feel. The heavier tips of the blades, because the original root weight was removed without changing the ballast lead in the blade tips, gave the heli a surprisingly smoother flight characteristic just like the real thing. Because my experience in fabrication is extensive fab'ing up some cf root grip surfaces was not a problem, epoxied and sanded to proper thickness to fit in the grips nice and firmly, then the blades painted flat black.

At first the balance was a little hard to place and spooling up to full rpm (2500rpm is a guess but it's close) the head would go into a wobble. When I put more electric tape to balance the blades the problem got worse, I still had too much tape on so in the final effort to get the blades not to wobble at high rpm I removed almost all of the balance tape and scored a perfectly steady rotor at high rpm, whoda thunkit. Woodies are not intended for high rpm, due to resonance issues, maybe I've changed that with this experiment, not what but how something is used determines it's success or failure.

This burdee is nearly done, messed up the landing gear due to a faulty deans connector on the bec which in a test hover caused a swash twitch, had to bring it down to hard ground quickly and that pushed one landing gear in too far breaking the stopper.

One thing about scale bodies is that there is no support at the top of the unit to steady it and the chassis within. I' will have to show you how that was remedied in short order.

This is not my heli but a friends, learned so much and tweaked about everything in sight to make it not just a Blade 500 in a scale body, I want to make a heli like this 3d ready and except for the extra weight of landing gear, system battery, heavier blades, this does not weigh really much more than first thought.

Take care, a little more to come and done. side firearms just twisted off as they were not glued on, this is a peace project to me not another wirly hurly projectile facile, "let he who is without fault cast the first stone" as someone famous once said.

-------------------------

edit update: minutes later I got the cam out and finished the pic'ing of the internal brace, here ya go,

....

This really is a must to prevent the body from sideways wobble and flex (thereby launching the canopy held on with only magnets, I run a velcro strap around the window and jet intake so it doesn't flick into the blades). At the ends of the wood brace are some felt pads to prevent chaffing and wear but I would have preferred to screw the sides to the chassis, this can be done with a different configuration of the upper lateral bracing where the screw heads would not deter from the original overall scale body look.

When I had this heli a foot off the ground in forward attitude like a sneaky nap of the earth heli, hmm, how about usd? one day.

uhm, yea, those blades were a pair of about 12 prototypes I messed with last week, so much fun, now for a set of 915's next and waiting for the skin material and vacuum bag, and on.

------------------------

one more for the wada,

Airwoof with pontoons, neetoe kiddo. These are for a 550 Bell Jet Ranger which a bro wants for his shuttle nitro, looks only matter there until a better flyable chassis becomes available and interest grows in actually flying a heli instead of having a shelf queen to dress up the rec room.

I had some long sections of styrene 2lb density foam to which I rough shaped and contoured to this stage. A lathe will assist in getting perfectly round post like pontoons, the ends are coned and the noses are wedge cut to scale. These might be a wee bit over sized and are going to float possibly a 700. Well, they have to displace 12lbs of wada to float up to or just below the wada surface.

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