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10-21-2009 02:15 AM  8 years agoPost 21
UKhelinoob

rrApprentice

Michigan USA

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The GMP don't have it stamped anywhere but it is a GMP..

Oh The Gmp did use some Hirobo parts thats why you see Hirobo stamped.

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10-21-2009 03:16 AM  8 years agoPost 22
GMPheli

rrElite Veteran

W. Bridgewater, MA USA

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Yup, GMP Competitor, Got one just like it (sans spider webs (G)
I have a pdf of the manual I can email you if you like

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10-21-2009 03:37 AM  8 years agoPost 23
Wobbly Goblin

rrNovice

Victorville, California. USA

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Yep, it's a GMP Competitor.

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10-21-2009 04:31 AM  8 years agoPost 24
coop

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Bainbridge, NY

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And I have one just like it too, only mine has an extended tail boom and 680 blades......Remember that one Alan?

Coop

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10-21-2009 10:20 AM  8 years agoPost 25
JeepCJ

rrKey Veteran

Pennellville NY (Syracuse Heli Group)

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Yup, GMP Competitor, Got one just like it (sans spider webs (G)
I have a pdf of the manual I can email you if you like
Thanks, I found a PDF manual online for it. The fun part is going to be finding...parts... It has some that have gone missing.

Bob

Team Synergy/ Team Scorpion

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10-21-2009 11:41 AM  8 years agoPost 26
coop

rrApprentice

Bainbridge, NY

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Bob...Let me know what you need, I still have a ton of GMP stuff. I'm not to far from you, we might have even met years ago, I flew a couple times at the Fairgrounds, going back a few years...

Coop

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10-21-2009 11:48 AM  8 years agoPost 27
JeepCJ

rrKey Veteran

Pennellville NY (Syracuse Heli Group)

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The fairgrounds! had alot of fun out there! You must remember Dan Williams, Doug Law also.

I will keep you in mind once I start searching for parts. I am going to tear down, clean, and inspect what I have, and then decide how to proceede from there.

Thanks for the help!

Bob

Team Synergy/ Team Scorpion

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10-21-2009 11:58 AM  8 years agoPost 28
coop

rrApprentice

Bainbridge, NY

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Yup, Dan helped me get my Bergen flying..I was a member for a short while, never made it to very many events though.

Coop

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10-21-2009 12:11 PM  8 years agoPost 29
JeepCJ

rrKey Veteran

Pennellville NY (Syracuse Heli Group)

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I was looking through your gallery, I will definitely get ahold of you when I start looking for parts..... I like CUBZILLA....

Bob

Team Synergy/ Team Scorpion

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10-21-2009 11:12 PM  8 years agoPost 30
JeepCJ

rrKey Veteran

Pennellville NY (Syracuse Heli Group)

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How about the blade grips? These have Hirobo logo around the blade bolt holes.

Bob

Team Synergy/ Team Scorpion

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10-21-2009 11:42 PM  8 years agoPost 31
R.J.

rrVeteran

SF bay area, CA USA

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GMP used the Hirobo blade grips with their Pro yoke that took out the coning angle of the Hirobo yoke. It's still a GMP Competitor.

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10-21-2009 11:53 PM  8 years agoPost 32
JeepCJ

rrKey Veteran

Pennellville NY (Syracuse Heli Group)

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Sorry, not doubting anyone, just want to be positive, Thanks everyone!

Bob

Team Synergy/ Team Scorpion

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10-22-2009 12:29 AM  8 years agoPost 33
RAK402

rrElite Veteran

Alhambra, CA

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It is a Competitor-I worked at the GMP factory when they were being developed.

The side frames, gears, head, tail gear box (about 90% of the helicopter) were made by Hirobo-that is why the parts are marked "Hirobo".

The "I" levers to keep the swashplate level are missing and the bellcrank to raise and lower the swashplate (collective) is put on upside down (correct for a Competitor).

The Competitor was based on the Falcon 808. GMP changed the gearing, changed from a belt start to a cone start, reduced the main rotor diameter, shortened the tail boom, used the servo trays and fins from the Falcon 505, and changed the canopy to tailor the machine for the American market (i.e. hotter aerobatic type flying-the 808 was geared more towards FAI). GMP also changed from the very heavy, stock Hirobo paddles to Schulter/Heliboy type paddles (thin, sharp, light).

I suspect that Mr. Gorham sold many, many more Competitors than he ever could have sold Falcon 808's.

CONING ANGLE

"GMP used the Hirobo blade grips with their Pro yoke that took out the coning angle of the Hirobo yoke."

Technically, Hirobo took the coning out of the yoke. The original yoke, used on the Falcon 707 and the scale (flatbed) ships, was die cast and had a coning angle. The "Pro" yoke, was simply the 808 yoke (machined with no coning angle) re-named the "Pro" yoke by GMP.

The GMP/Hirobo parts were painted a satin black. The same parts when sold in their original Hirobo kits, were painted a gunmetal color (some say greenish gunmetal-I cannot tell).

SIDE FRAME DEVELOPEMENT

Someone commented on the "ribbed" side frames. These were simply another iteration in the evolution of Hirobo side frames, and the later Competitors had them.

The first side frames were natural metal, with the fold at the bottom turned inward. There was something different about the motor mount area, which I can no longer recall. These were found on the Falcon Mk I and Mk II.

When the Falcon 505 and 707 came out, the side frames were modified slightly, and were anodized red, still with the bottom folded inward.

When the Falcon 808 appeared, the side frames were still red anodized, but the fold at the bottom was turned outward (I think to accommodate the installation of a .60 engine). These are the first frames used on the Competitor-the Competitor variation being anodized black, in Japan, by Hirobo.

The next version of the side frames had the rib pressed into them for added stiffening. I purchased GMP/Competitor sideframes like this and used them to replace the frames on my Falcon 808, which had developed cracks along the bottom fold.

Team KBDD/Compass Team Manger/Experience RC/Team JR Americas/WR Field Rep

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10-22-2009 02:08 AM  8 years agoPost 34
JeepCJ

rrKey Veteran

Pennellville NY (Syracuse Heli Group)

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Thanks!

Bob

Team Synergy/ Team Scorpion

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10-22-2009 02:28 AM  8 years agoPost 35
marcw

rrApprentice

Southern California

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+1 with what RAK402 says.

To fill in a small gap in his excellent narrative, id only add that the other evolutionary frame differences were that the mk1 actually had the engine mount as part of the frame itself..prone to cracking. The 505 had separate steel 90-degree brackets, then by the time the Competitor came out (and maybe earlier with the 808?) the engine mounts were billet aluminum blocks. Also, the Mk1 did not have the same cutout and fulcrum holes for the swash mix lever arrangement. More pics and write-up soon.

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10-22-2009 04:45 AM  8 years agoPost 36
RAK402

rrElite Veteran

Alhambra, CA

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Marc,

Thank you.

I could not remember the side frame change on the MK I to Mk II Falcons (although I can remember looking at both machines, about a year apart(?), at the old Buena Park Hobby Shack where I worked).

The machined aluminum motor mounts were common to both the 808 and the Competitor. I cannot remember about the 707, but think it must have had the 90 degree angle bracket type mount you described.

If I can ever find the instructions to it, I will post the answers.

I converted my 707 to an 808 a long time ago. I kind of miss that strange yellow "giant toaster" look. I still have the canopy somewhere, and maybe enough parts to put it back together (although the red side frames are long gone).

The 707 converted to an 808 was the only Falcon that I had that was ever destroyed. I had been flying it all morning (it flew better than either of my other two, one of which was an 808EX). It threw a blade about 100 feet up when I was setting up for a roll and destroyed itself long before it hit the ground (the centripetal force on the other blade bent that thick main rotor shaft about 45 degrees and the blade came down and took out the tail boom, canopy, radio, etc).

Team KBDD/Compass Team Manger/Experience RC/Team JR Americas/WR Field Rep

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10-22-2009 06:20 AM  8 years agoPost 37
marcw

rrApprentice

Southern California

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It's really neat to trace the evolution from one model to the next! Im working on restoring the Mk1 right now. Hopefully, by next month, we'll have a new website write-up for it!

In the meantime, here's a little trip down memory lane:

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