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Hirobo HGE-20EH Gas Engine

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Old 09-04-2012, 06:11 PM
  #26
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Default RE: Hirobo HGE-20EH Gas Engine

here we go , almost ready to fly - my new paint job
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Old 09-04-2012, 06:14 PM
  #27
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Default RE: Hirobo HGE-20EH Gas Engine

some more
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Old 09-04-2012, 06:15 PM
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Default RE: Hirobo HGE-20EH Gas Engine

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Old 09-04-2012, 06:17 PM
  #29
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Default RE: Hirobo HGE-20EH Gas Engine

more pic's
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Old 09-05-2012, 01:08 AM
  #30
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Default RE: Hirobo HGE-20EH Gas Engine

Wow Isaac,

thanks for sharing the photos! well done and I am impressed with your paint work.
How about the engine, do you managed to test it/tune it?

what blade type and length are you using?

post us a video when you are read yto fly her! would liek to see the heli in the air!

cheers and have fun.

PS: Now you make me want to go straight to fly my Bell 47G!

Regards,
Lawrence
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Old 09-05-2012, 07:26 AM
  #31
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Default RE: Hirobo HGE-20EH Gas Engine

Lawrence,
thanks for the reply, the motor started after few pulls and idle very nice - 1 st start in 20 - 30 y . blades : main - align carbon fiber 800 mm , tail - align 450 main blades carbon fiber cut to 120 mm same length as the original 120 mm wood blades.
I may try her this comeming weekend , will keep you posted.
by the way go to site : air star international - they manufacture giant scale heli and parts in California , the owner is a friend of mine . he has all the parts for my engine and also about 100 new engines like mine.also blades and stuff .
check it out and watch the video's. if you need parts let me know ,
regards
Isaac
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Old 09-06-2012, 12:43 AM
  #32
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Default RE: Hirobo HGE-20EH Gas Engine

Hi Isaac,

I also cut trex 450 main blades into 130mm tail blades for my Bell 47G

Yes, seems like there is ntohing that air star cannot manufacture! I am indeed having a hard time to find spare main gear for my Hirobo Bell 47G.
it is old version which uses hlical gear (as shown in photos). they have used straight cut gear in later Bell 47G version hence I cannot find a spare helical gear. Also, the one way bearing in the main gear was playing up last time I flew her so maybe I can ask your help to see if air star can actually provide a new main helical gear unit with one way bearing.

is your Hirobo using helical main gear as well?

cheers and have fun with her maiden flight after more than 20= years![8D]

Lawrence
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Old 09-06-2012, 02:13 PM
  #33
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Default RE: Hirobo HGE-20EH Gas Engine

LAWRENCE, I WILL CHECK AROUND IF I CAN FIND YOU THE GEAR. MINE USE DIFFERENT MECHANICS. LOOKS LIKE EVERY THING SEALED IN THE GEAR BOX . I DO HAVE EXTRA GEAR BUT IT IS STRAIGHT NEWER VERSION .
I LET YOU KNOW IF I FIND SOME. I HAVE ANOTHER FRIEND WHO USED TO WORK FOR GMP/HIROBO IN LOS ANGELES , HE MAY HAVE SOME PARTS.
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Old 09-07-2012, 02:16 PM
  #34
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Default RE: Hirobo HGE-20EH Gas Engine

Thanks Isaac,

to be a little off topic, I will try to tune my hirobo shuttle plus in a Ecureuil fuselage this weekend.
It has OS37 which is really fuel thirsty!! I will try to tame down the throttle curve and see if that improve on fuel consumption. way too quick to drain the shuttle fuel tank.

Now I miss my Bell 47 g 20c.c. half a little seems to fly forever!! have fun with your nice bird!

Cheers.

Lawrence
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Old 09-10-2012, 07:02 AM
  #35
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Default RE: Hirobo HGE-20EH Gas Engine

Hi Isaac,

any updates? managed to fly last weekend? I was lucky to have really good weather last weekend.

http://www.youtube.com/watch?feature...XkbzlKnZEnf18g

cheers.

Lawrence
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Old 09-12-2012, 01:46 PM
  #36
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Default RE: Hirobo HGE-20EH Gas Engine

nice vidio , I tryed to hover the bell last weekend , had some problem with the tail set up so I gave up. i will try soon again , and keep you inform . and the meen time I have hard time to find you gear ( it is very old - but I didn't give up,
cheers
Isaac
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Old 09-12-2012, 05:17 PM
  #37
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Default RE: Hirobo HGE-20EH Gas Engine

SOME PIC'S FROM THE FIELD BY KEN ( KARBONKOPY3 )
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Old 09-12-2012, 05:19 PM
  #38
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Default RE: Hirobo HGE-20EH Gas Engine

MORE
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Old 09-12-2012, 05:24 PM
  #39
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Default RE: Hirobo HGE-20EH Gas Engine

ONE MORE
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Old 12-13-2012, 09:55 AM
  #40
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Default RE: Hirobo HGE-20EH Gas Engine

I JUST BROUGHT THE SAME BELL UH-1B IT HAS A25CC ENGINE IN IT ,IT LOOKS LIKE THE SAME ENGINE SET UP AS MINE BUT I NEED A SET UP MANUAL FOR THE CHOPPER CAN YOU HELP ME?
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Old 12-13-2012, 10:46 AM
  #41
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Default RE: Hirobo HGE-20EH Gas Engine

did you get the yellow one that was on rc universe about 2 weeks ago ?
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Old 12-14-2012, 07:27 AM
  #42
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YES I DID ,BUT I DON;T HAVE A MANUEL.
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Old 12-14-2012, 08:49 AM
  #43
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Default RE: Hirobo HGE-20EH Gas Engine

I don't have the Manuel , but it is not difficult to set up . It is not a 3 d Helli so any experience Helli pilot can help you out . e mail me some interior pics of the engine and if it is the same as mine I will try to help you in starting up . I have not fly mine yet .
my e -mail igoren@aol.com
good luck,
Isaac
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Old 12-14-2012, 11:52 AM
  #44
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Default RE: Hirobo HGE-20EH Gas Engine

ok,thanks ill see what i con do.
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Old 12-20-2012, 07:23 AM
  #45
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Default RE: Hirobo HGE-20EH Gas Engine

DOES YOUER HELLI HAVE THE MECHANICAL HEAD ON IT LIKE THE FLYBARLESS SYSTEM? HEAR ARE SOME PICS OF MINE.
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Old 12-20-2012, 10:26 PM
  #46
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Default RE: Hirobo HGE-20EH Gas Engine

Hi
You can goggle vintage manual .com
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Old 08-25-2015, 11:19 AM
  #47
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Hya guys

I've just bought a hirobo 47g and im pretty sure it has the HGE-20EH ENGINE. I've just spent about 2hrs trawling the internet for manuals for the engine and the helli. I know its been a few years since this conversation but would it be possible for one of you guys to send me a copy of the manuals for either helli or engine.
Best regards justin
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Old 08-25-2015, 12:02 PM
  #48
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Hello there guys.
Would any of you guys still have the manual for the HGE-20EH ENGINE and also the Hirobo bell47g first issue manual as well ?.
I've never had such a hard time finding info on an item!.
Any help would be GREATLY appreciated.
BEST REGARDS justin
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Old 11-25-2015, 11:09 PM
  #49
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I have this same engine in My Bell 47 , I don't have manual also , but would like to know what length and cord blades this engine will handle ....
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Old 11-26-2015, 12:45 AM
  #50
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Sorry Mate I know this is an old post but I have one of these bell 47s I just stripped and rebuilt , it to has the HGE-20 EH Engine , there is some pics in my Gallery ...
Just wondering what size Blades does this old girl run that this engine can handle without to much trouble ....?

Cheers

Gary....
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