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Home✈️Aircraft🚁HelicopterHIROBOHirobo Freya › Freya up and running!
11-26-2019 03:57 AM  18 days ago
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jig1971

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Colorado

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Freya up and running!
I thought I would share a quick picture of my new old Freya that has been sitting in a box since about 2002 along with a new OS 70. I assembled it this spring, and have been flying it all summer! I know it's nothing exciting (pretty old design), but I love how it flies, and the quality is exceptional. I have a second one that will either get a new Rossi, or an electric conversion. They both look great next to my GPH.

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11-26-2019 07:47 AM  18 days ago
hgh001

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New Zealand

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They are indeed exceptional. Will keep flying my Hirobo fleet for as long as possible.

Get yourself a YS91SRX (Tareq), really compliments the freya with a hatori or ys exhaust.
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11-26-2019 11:47 AM  17 days ago
Goober1228

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Looks Great! Keep her Flying!
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11-26-2019 02:58 PM  17 days ago
jig1971

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Colorado

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Thanks everyone! On the subject of YS, how reliable are these engines compared to OS? I have always been curious, and they look to be a well made alternative. Have you had any issues with the pump in particular? This photo is of the canopy that I painted, and cleared with automotive clear coat. I used this same method on one of my GPH canopies, and found that the 20% fuel attacked the clear coat. As such, I have hesitated to use it on my flying set on mechanics.

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11-26-2019 03:25 PM  17 days ago
banshee rider

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Phoenix AZ.

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The YS is of the same quality as the OS maybe better

The only issues with the pump and this pertains to all engines with a pump
Is if the engine sits for a long time the methanol evaporates leaving the oil on/in the diaphragm which turns to goo which is easy to fix just take it apart and clean it
or using contaminated fuel which can damage the diaphragm then you will need to replace the diaphragm

As far as the clear cote I dont know what you used but automotive clear is the only type that works

Next time use this two part type https://www.eastwood.com/eastwood-s...AiABEgJmMPD_BwE

or something similar
ageing is manditory maturity is optional
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11-26-2019 05:55 PM  17 days ago
jig1971

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Colorado

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I'm buried in snow, so I have a day off work! I took a look at the YS 91, and I really like the fact that it is not a long stroke engine. I'm very meticulous as far as maintenance goes, so cleanliness and engine care are right up my alley.

I don't know what I did wrong with the clear coat. I purchased it at the auto paint supply that I usually use. It was the spray can version that has the hardener on the bottom of the can, and you puncture it and mix it just before using. I mixed the crap out of it, and it went on like glass. Thanks for your suggestion, and I'll give it a shot.
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11-26-2019 06:53 PM  17 days ago
jimm

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Dixon, IL

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What do you mean, nothing special? It is a Freya, great machine. New models have nothing over it. Love mine. Fly her and enjoy it!
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11-26-2019 07:00 PM  17 days ago
jig1971

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Colorado

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Totally agree! I simply meant nothing special in terms of upgrades, etc. She's pretty stock right now, but I see an RC Japan order coming on soon. Simply put, it's the nicest flying heli I have ever owned (been flying since the late 80's). I don't want to ruffle feathers, but I'm not really all that impressed with some of the newer designs from various manufacturers. Very stoked on this machine!!
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11-27-2019 01:51 AM  17 days ago
banshee rider

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Phoenix AZ.

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jig1971 I don't know what I did wrong with the clear coat. I purchased it at the auto paint supply that I usually use. It was the spray can version that has the hardener on the bottom of the can, and you puncture it and mix it just before using. I mixed the crap out of it, and it went on like glass. Thanks for your suggestion, and I'll give it a shot.
I dont know what happened either because what I posted above is exactly the same stuff that you used it sounds like

Maybe you just got a bad batch or something
ageing is manditory maturity is optional
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11-27-2019 10:33 PM  16 days ago
reddragon

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Brooklyn, N.Y.

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"I don't want to ruffle feathers, but I'm not really all that impressed with some of the newer designs from various manufacturers. Very stoked on this machine!!"

Yeah some of us aren't either. Give me all the kits from the old days and I am a happy camper.
Wayne - Fly it like you stole it! You're in good hands with Runryder!
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11-27-2019 11:40 PM  16 days ago
Goober1228

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Vintage birds have grown on me in the last few years but the Hirobo Freya IMHO,it's quality and design still make it a viable versatile machine which will fly well for most folks abilities. And it looks really COOL!
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11-28-2019 12:01 AM  16 days ago
jig1971

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Colorado

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Yeah, they do look unbelievable cool on the ground and in the air. I'm definitely a smooth aerobatics kind of pilot, and it's phenomenal at it (loops are huge like my old Kalt Excalibur). I have no doubt that it's very competent at 3d as well, especially with an FBL head and a 120 or 105. I will say that I'm pleasantly surprised by the power of the OS 70, even at 5,280'. I'm also quite happy with the balance and quality of the KBDD blades. The muffler is a cheap one from Just Engines. However, the OS 70 responds very well with it, and displays a nice rpm range and exhaust note. Now I'm thinking of upgrading to the metal grips, swashplate, and tail gearbox housing!
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11-28-2019 01:20 AM  16 days ago
Goober1228

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And you can get all of that at RC Japan!
Maybe for another forum, but that's really cool you're still flying a Kalt!
Love to get one some day.
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12-07-2019 11:38 PM  6 days ago
Blue Angel

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Redford, Mi - USA

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Hello jig1971: Have you ever used Rossi engines in a helicopter. Just curious how they worked and what kind of fuel (nitro content) you used? Thanks!

Blue Angel
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12-08-2019 04:26 AM  6 days ago
jig1971

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Colorado

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I have not yet used one. I'm considering their 50 size engine to replace my old OS .46 in my GPH. My only concern is that they tend to like higher rpms compared to the OS. I'm also considering their .91 for one of my three Freyas. I'm intrigued by the design, yet slightly concerned about it being a long stroke engine. That being said, the pricing through NovaRossi direct USA is very good.
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12-08-2019 02:09 PM  5 days ago
Rojoalfa

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Punta de Mata, Monagas-Venezuela

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/
/

Novarossi motor... Nice machine!

It is hard to tell... This beauty is not easy to get spare parts like piston ring or sleeve...

/
Saludos cordiales,
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12-08-2019 03:29 PM  5 days ago
jig1971

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Colorado

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I really like that version of their .91 because it was not a long stroke engine. Good to know about parts availability!
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