View Full Version : Razor stretched boom kit for 690/710mm blades
tcast305
01-31-2007, 09:38 PM
Hi all,
I've been looking at the Razor kit. I have 2 Trex 600s one 10s and one stock. I'm been thinking of selling my stock 600s and getting a razor. However, what I really want is the Razor with 90 size blades on it, like I saw at the Mulberry funfly, that thing was awesome.
Does anyone know if the kit from MA will be released?
Thanks.
r2160
02-01-2007, 08:04 AM
Hi
The kit will be released in stretched form. Tim is currently testing the 700 with the help of his ever faithful band of merry men (LOL) and I know that when he is confident of it being 100% reliable it will be released.
In the mean time, have a look at eric and bert flying the razor 700, just awesome.
Glenn
WillJames
02-01-2007, 08:51 AM
I could be very wrong.
I personally doubt it will be super soon for the stretch, but you never know. I know they are now working on the Nitro Razor, and also the Ion-X Belt Drive and I hope Razor Canopies ;) . I could be wrong, but I bet it will be a while for the stretched Razor and Tail Drive Stretched Razor.
DavidH
02-01-2007, 09:34 AM
When it does happen. From what I have been told by Tim. It will be an option and not included in the kits. You will have to buy the Razor kit, then the longer boom and tail drive system ( belt). That is what he was saying this past weekend at Clints.
David
berthoud
03-29-2007, 08:48 AM
Any more info on this? Updates? Any other boom/belts that could be used instead of waiting?
DavidH
03-29-2007, 09:18 AM
You can use any length boom. 33 inch aluminum is used on the stretched version. Finding a belt is not difficult. McMaster Carr and a few other industrial supply places carry them. To get the proper length belt, just add the additional boom length to the length of the belt.
David
Laurens
03-29-2007, 12:49 PM
Twice?
I don't know much about belts and how their lengts are written?
Bert Kammerer
03-30-2007, 01:25 AM
It looks like this project is being put on hold indefinitely. In fact, this machine might never be released as a 90 size. I am currently flying a new Ion X2 and the thing is absolutely amazing, nothing to envy a stretched Razor. You might want to consider the Ion X2 instead as you can run it with the same packs you use on your T-Rex 600 (2 of them of course).
OICU812
03-30-2007, 03:13 AM
now there is a bonus bert !
ozace
03-30-2007, 06:26 AM
Considereing all we really need is a longer boom and belt, the rest can be cobbled together, i would hope MA will make the belt and boom available to us at least as spare parts. I am sure the booms is an off the shelf item at MA and the belt cant be that had for them to give a part number.
I have no interest in an ION or ION 2 but i do have a razor that would benefit from the stretch down the track.
Oz,
I'm sure all that will be doable. For a cheap stretch, maybe you can just move your Razor head to your Joker and get the best of both heli's!
On the other hand, maybe you should just try 640 blades on your existing Razor and see it this makes much difference first.
Cheers,
Tom C
cgbole
03-30-2007, 08:26 AM
or... put a stratus boom and pushrod on it and get a belt from here...
https://sdp-si.com/eStore/
under timing belts
chuck
DavidH
03-30-2007, 08:55 AM
What about an Extreme or Tempest boom? Will they work? LOL
David
Bert Kammerer
03-30-2007, 10:12 AM
Extreme or tempest booms definitely work :) If you want to do it yourself, simply get a longer boom (at least 29 inches). The boom on my stretch measured 28.3 inches, that is enough to clear 710 mm blades. Then, you will need to find a belt that fits it. The issue here is finding a belt that has the same pitch to match the pulleys as well as the length. Tail push rod can be made out of a regular 90 size MA tail push rod kit.
As far as power is concerned, you'll need to order pulleys from MA for gear ratios. The Actro 32-3 works well as well as the Neu 1521 2y. You'll also need a longer flybar for stability and might want to consider going with stronger head rods like the heavy duty ones we use on our 90 size ships.
Good luck!
If you all have not yet read Chris's (ex-MA) power systems report, you should. It's avail at ;
http://www.miniatureaircraftusa.com/Support/Instructions/xcell_razor_600e_power_systems_guide_current.pdf
In the section, 'Recommendations for Success' he talks about different blade size selection vs performance.
The main thing I got out of this is that a Razor (which is already a pretty heavy 50 sized heli) will perform better with larger (say 640) blades on 10-12s.
The main thing that differentiates the Razor from other 50 sized heli's is it's ablilty to use up to 640mm blades (with 95mm tail blades). For those wanting to decrease the blade loading, I'd think that this is a first logical step rather than tying to to stretch it to a 90 sized heli with 680-700mm blades.
It's hard to believe that wth almost a year of testing, the MA team did not seem to fully evaluate this option. Maybe it was more important for them to come out with a standard 600mm blade heli.
Cheers,
Tom C
. You'll also need a longer flybar for stability and might want to consider going with stronger head rods like the heavy duty ones we use on our 90 size ships.
Good luck!
My Ion is a 90 size and came with cheap and filmsly 2mm rods not to mention cheap ball links , I'm talking from my own experience with these ball links , I crashed my Ion due to a ball link popping off under load.
I replaced all my ball links and rods with Rocket city and QUK SS 2.3mm rods , best upgrade you can get, period.
epc2.
Bert Kammerer
03-30-2007, 10:56 AM
I agree with you Tom. However, 640 mm blades are not widely available. I have managed to get some 620mm blades and have tried them out. However, the helicopter needs to be geared differently to obtain the most efficient setup. Since anything longer than 600mm is not widely available, we decided to concentrate on 600mm blades during the R&D process.
DavidH
03-30-2007, 10:58 AM
It's hard to believe that wth almost a year of testing, the MA team did not seem to fully evaluate this option. Maybe it was more important for them to come out with a standard 600mm blade heli.
I have flown Clint's Razor with 620 mm V Blades on it. It flew really nice. The Razor will support 640 mm blades as you mentioned in stock form. The reason 600 mm blades are used. There is many types of blades are readily available in the 600 mm length.
Here is an example here in the USA
http://www.ronlund.com/Merchant2/merchant.mv?Screen=CTGY&Store_Code=heli&Category_Code=Main600
SAB does have some 640 mm blades.
That seems to be the problem is finding blades longer than 600 mm and less than 650 mm. Not a big selection of them.
David
Bert Kammerer
03-30-2007, 11:01 AM
My Ion is a 90 size and came with cheap and filmsly 2mm rods not to mention cheap ball links
Well, that has to be an old Ion. When Ions first came out, they shipped with standard rods (Extremes also had standard rods). Sometime later MA came up with "heavy duty rods". We're putting more power on all these machines electric and nitro combined during the last few months that we ever thought possible years ago.
My Ion is a 90 size and came with cheap and filmsly 2mm rods not to mention cheap ball links
Well, that has to be an old Ion. When Ions first came out, they shipped with standard rods (Extremes also had standard rods). Sometime later MA came up with "heavy duty rods". We're putting more power on all these machines electric and nitro combined during the last few months that we ever thought possible years ago.
I got mine 1 1/2 years ago from a MA rep.
epc2.
DavidH
03-30-2007, 11:13 AM
The Ion only came out a couple years ago. I flew an Extreme for over 2 years with those same 2mm rods. As did the other team pilots. The Heavy Duty rods did not come out for a while after the Extreme. As for the ball links. They have been the same ball links that MA has had in the kits for many years. When I was flying contest and practicing. It was nothing to fly a heli daily for several flights seven days a week. In the maintaince of the heli, the ball links were not a problem.
David
My Ion is a 90 size and came with cheap and filmsly 2mm rods not to mention cheap ball links
Well, that has to be an old Ion. When Ions first came out, they shipped with standard rods (Extremes also had standard rods). Sometime later MA came up with "heavy duty rods". We're putting more power on all these machines electric and nitro combined during the last few months that we ever thought possible years ago.
I got mine 1 1/2 years ago from a MA rep.
epc2.
And it's taken you 1 1/2 years to post this useful info albeit in an unrelated thread? My Ion is a Nov/2005 make and I have not had any rod link failures. I have replaced a few worn ball links but this is expected with any heli. Most of my links are still original. Also, the original black TT tail gears do not show any wear and are still like new.
Before I go to 12S with my Ion later this year (assuming the belt drive mod is avail by then), I guess I need to know that my ball links and rods are up to this. I do not have a micrometer to measure mine. Given the age of it there a kit avail to update these?
Cheers,
Tom C
My Ion is a 90 size and came with cheap and filmsly 2mm rods not to mention cheap ball links
Well, that has to be an old Ion. When Ions first came out, they shipped with standard rods (Extremes also had standard rods). Sometime later MA came up with "heavy duty rods". We're putting more power on all these machines electric and nitro combined during the last few months that we ever thought possible years ago.
I got mine 1 1/2 years ago from a MA rep.
epc2.
And it's taken you 1 1/2 years to post this useful info albeit in an unrelated thread? My Ion is a Nov/2005 make and I have not had any rod link failures. I have replaced a few worn ball links but this is expected with any heli. Most of my links are still original. Also, the original black TT tail gears do not show any wear and are still like new.
Before I go to 12S with my Ion later this year (assuming the belt drive mod is avail by then), I guess I need to know that my ball links and rods are up to this. I do not have a micrometer to measure mine. Given the age of it there a kit avail to update these?
Cheers,
Tom C
At least I'm posting it don't you think!!!
epc2.
Ya, better late than never Mate!
Cheers,
Tom C
cgbole
03-30-2007, 01:20 PM
one of the first things i did when i converted my stratus to elec. was get
a set of 3mm rods and ball links.
i used a belt from sdpi when i did a 700ep stretch and the front of the belt wraps aroun the drive pulley the same as the razor's does. it shouldn't be too hard to come up with a belt the right lenth.
chuck