Predator  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> RC Airplanes >> Pylon Universe - RC Pylon Racing >> Q-500 Racing >> Predator
Page: [1]

Login
Message << Older Topic   Newer Topic >>
Predator - 6/21/2002 3:18:55 AM   
Tom02


 

Posts: 54
Joined: 6/21/2002
From: Silver Spring, MD, USA
Status: offline
I bought a predator from Darrol Cady about a month and a half ago and the plane has about 30 flights on it and I have had no problems with it until yesterday. On about the 6th flight of the day I came around Pylon 3 and the firewall blows right out, and it was a clean break, the plane was landed in a corn field and nothing else was damaged. I have no idea why this would have happened. Does anybody have a clue why the firewall would just break out?

Thanks

Tom
       Post #: 1

Predator - 6/21/2002 4:08:21 AM   
R.Bridge


 

Posts: 128
Joined: 3/22/2002
Status: offline
What kind of motor do you have on the front of it (428 or 424)..?

Actually that really doesn't matter. It seems obvious that the firewall is certainly not reinforced enough, which is certainly not fault of yours. When you put the firewall back in, be sure to use slow cure epoxy and a generous amount of chopped glass or chopped carbon.

Does anybody know if the company making the predator will provide Tom with a replacement fuse at either no charge or 1/2 off ?????????

Sorry about your misfortune Tom....

Randy Bridge
Team JR

(in reply to Tom02)
       Post #: 2

Predator - 6/21/2002 8:14:17 AM   
PylonWorld



Posts: 1346
Joined: 12/29/2001
From: Monroe, NC, USA
Status: offline
Firewalls breaking out? That would be #6 on my infamous list of the 7 deadly sins of the Predator at http://www.rcuniverse.com/forum/tm.asp?m=45237.

Is your Predator the old one or the new one? The new one has a 3/8" firewall, and the old one was less than 1/4".

The new Predator is supposed to have glass on the outside, but they still aren't pinning them with toothpicks (small dowels). It takes a lot of strength to keep the firewall in place, especially with a .46 or a 428 (Jett,Nelson) engine. If you put it back in, use fibers as Randy said, or microfibers in the epoxy. Also drill 2 or 3 holes through the sides into the firewall and insert small dowels or toothpicks coated in epoxy.

You should call Lanier and at least let them know it happened..

< Message edited by PylonWorld -- Jun 21 2002 3:49AM >


_____________________________

Don Stegall
RCPRO Chairman of the Board

(in reply to Tom02)
       Post #: 3

. - 6/21/2002 8:39:54 AM   
daven



Posts: 7011
Joined: 12/7/2001
From: Andover, MN, USA
Status: offline
.

< Message edited by daven -- Jul 29 2002 3:47AM >


_____________________________

Dave Norman

klasskote.com
supertrc.com

(in reply to Tom02)
       Post #: 4

predator - 6/21/2002 11:07:06 AM   
Druce



Posts: 79
Joined: 1/6/2002
From: Edmonton, AB, CANADA
Status: offline
I really don't think it is the Predators fault that it has faults..
It is an ARF, as with all ARF'S they need to be inspected. AS a result most ARF's need to be reinforced and have things replaced or modified. This seems to me that this is pretty standard knowledge.
I have two Predators which I have reinforced and raced them, and I'm pretty impressed. I have another scale ARF which I also reinforced that I really like. For the most part they are pretty straight and not bad for weight either.

SO!! to sum it up I have to put the blame on the pilot for being negligent. So blame yourself for not taking the time to reinforce them and not the airplanes!!!!

(in reply to Tom02)
       Post #: 5

Predator - 6/21/2002 12:18:53 PM   
fastlash


 

Posts: 679
Joined: 1/8/2002
From: Eatoville, WA, USA
Status: offline
Druce is right about having to beef it up but wrong on the firewall issue if it was locked into the fuse ply reinforcements correctly and a extra second for the factory to pin the thing in it would stay put, plus the glass on the fuse firewall is not heavy enough even with a ton of glue, you do have the right to expect the enginnering to be correct, what some people need to keep in mind that not every one is a seasoned pro and knows the in-N outs or did some of you forget your horrer storys when you first started out???

(in reply to Tom02)
       Post #: 6

Predator - 6/21/2002 6:22:45 PM   
splatt



Posts: 651
Joined: 1/30/2002
From: splattsville, MN,
Status: offline
The predators aren't going to take much business away from the quality manufactures anytime soon, but they are help getting folks into or back into racing. I've had good success with them, but I don't recommend them for your first quickie unless you have access to the knowledge it takes to see the potential problems

I ran mine in 428 and 424 type racing and they take off straight and track nice. Leaving the thumb and forefinger as the only issue.

Someone up here put a new nelson on a newer production model and was radared at 170 MPH, so get off your pc and race

(in reply to Tom02)
       Post #: 7

Predator - 6/21/2002 8:01:10 PM   
R.Bridge


 

Posts: 128
Joined: 3/22/2002
Status: offline
Predator going 170mph is like a wheel-barrel winning the Indy 500. Did not happen and never will ...... The fastest number I've ever seen with any of my Vortex's is 171 on the race course. But most of the time it's around 167 to 169... So if "someone" can get the time off, take that thing to the Nats, it would be a sure winner....

rb

(in reply to Tom02)
       Post #: 8

Predator - 6/21/2002 8:16:28 PM   
splatt



Posts: 651
Joined: 1/30/2002
From: splattsville, MN,
Status: offline
Well then, I put the question to DaveN because he told me the story last week. The nelson in question was brand spank'in new was being tweaked hard. So Dave is it true or not ?

(in reply to Tom02)
       Post #: 9

Predator - 6/21/2002 9:42:23 PM   
PylonWorld



Posts: 1346
Joined: 12/29/2001
From: Monroe, NC, USA
Status: offline
[QUOTE]Originally posted by splatt
... I've had good success with them, but I don't recommend them for your first quickie unless you have access to the knowledge it takes to see the potential problems ...[/QUOTE]

Jesse / others,

My concern when I first wrote my assessment was that new potential racers would buy them, and then have problems. A lot of people coming from the ARF community do not have experience with preparation of a racer, and especially one that needs some work. Even the new one still needs some work.

Lanier advertised in the major mags, which indicates they wanted to sell them to everyone, not just existing racers.

I don't agree with Druce that people should know better. Most people assume that an ARF is structurally sound, at least for the engine sizes stated on the box. Go above the engine rating on the box and yes, one should assume they might have to do some extra work.

Lanier has been responsive to the known problems. If this plane was from the new run of planes, then people need to let them know that there are still issues. Pinning the firewall has been common practice on Quickies for a long time. They should be doing it, and the consumers should let them know when a plane doesn't hold up.

Even Hanger 9 had a big problem with an ARF. The large Edge 540 was breaking wings. Eventually Horizon got the message and stopped manufacturing the plane until they could solve the problem. Plus they offered to replace the wings (at least) of the existing planes.

Fortunately Lanier addressed a number of problems that were on my list. We need to help them make the plane suitable for first timers that don't spend time on thier PC's getting info from others.

< Message edited by PylonWorld -- Jun 21 2002 5:31PM >


_____________________________

Don Stegall
RCPRO Chairman of the Board

(in reply to Tom02)
       Post #: 10

171 mph - 6/21/2002 11:37:09 PM   
daven



Posts: 7011
Joined: 12/7/2001
From: Andover, MN, USA
Status: offline
As to 171 mph, I saw the reading myself off a quality radar gun. This was not on the race course, but it was a flat and level run across the field.

There was some wind that day, but it was more of a crosswind. At most that added 5-10 mph.

I was suprised myself, as my fastest plane on the course was 167 with my old Vortex.

_____________________________

Dave Norman

klasskote.com
supertrc.com

(in reply to Tom02)
       Post #: 11

one thing to mention - 6/21/2002 11:51:37 PM   
splatt



Posts: 651
Joined: 1/30/2002
From: splattsville, MN,
Status: offline
that pilot who ran 171 sent his check for a nelson in a envelope made of 100 dollar bills , that always helps

(in reply to Tom02)
       Post #: 12

Predator - 6/22/2002 3:00:33 AM   
R.Bridge


 

Posts: 128
Joined: 3/22/2002
Status: offline
Okay boys, no more serious complaining. The FAA is on to us... we should all be happy that there is a ARF Q500 available for $110.00 bucks (however much it is).

ALL YOU BEGINNERS LISTEN UP ! REINFORCE THAT FIREWALL, USE SOME THICK CA ON ALL MAJOR FUSELAGE LINES, REINFORCE THE WING HOLD DOWNS AND LANDING GEAR PLATE.......AND GO HAVE SOME FUN !! if you need help, call one of the experienced guys.


and "Big Wave" Dave Norman...just playing with you :-) can I borrow that motor for the Nats... jk


and they call me....Travis' caller

(in reply to Tom02)
       Post #: 13

Predator - 6/22/2002 3:40:10 AM   
R.Bridge


 

Posts: 128
Joined: 3/22/2002
Status: offline
Not you guys ! all those beginners that may read our little forum here .........


Travis' caller

(in reply to Tom02)
       Post #: 14

Kill it - 6/22/2002 4:16:44 AM   
fastlash


 

Posts: 679
Joined: 1/8/2002
From: Eatoville, WA, USA
Status: offline
Lets kill this one its getting off track,, Flame out, what you say fellows, fastlash

(in reply to Tom02)
       Post #: 15

Predator - 6/22/2002 9:22:39 AM   
daven



Posts: 7011
Joined: 12/7/2001
From: Andover, MN, USA
Status: offline
No reason to kill it. Randy has as much experience with on the race course speeds as anyone.

I'm only reporting what I have seen. I have flown the predator, and I have flown most of the composites. To think a predator is going to be serious competition for one of the higher end composites is a bit out there.

Then again, give Randy a strengthened Predator and he'd give most of the Q500 racers a run for their money.

As to this specific engine, I tend to agree with Randy. 90% of the engines out there are the same. The top 10% are there because they are broken in properly, and taken care of. I have no intention to borrow this persons Q500 engine, but I do have one of his Q40 engines that also seems to go like stink.

Now if I could just learn to fly like you California boys.

_____________________________

Dave Norman

klasskote.com
supertrc.com

(in reply to Tom02)