RE: Beryll Flight Reports?  
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RE: Beryll Flight Reports? - 8/15/2007 1:07:38 PM   
J Lachowski


 

Posts: 358
Joined: 9/2/2003
From: Bridgewater, NJ, USA
Status: offline 		I'll try to send you bunch of pictures I have when I get home this evening. They may help you. This particular plane was set up by Troy Newman. THe only think I added was the Depron air diverters.

< Message edited by J Lachowski -- 8/15/2007 1:16:37 PM >


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Joe Lachowski
NSRCA 330

(in reply to mikedsilva)
       Post #: 126

RE: Beryll Flight Reports? - 9/19/2007 10:59:15 PM   
mikedsilva


 

Posts: 216
Joined: 1/4/2004
From: Brisbane, AUSTRALIA
Status: offline 		OK... everything is mounted and almost ready to go. What sort of control throws is everybody using?

regards

Mike

(in reply to J Lachowski)
       Post #: 127

RE: Beryll Flight Reports? - 9/21/2007 1:11:37 AM   
J Lachowski


 

Posts: 358
Joined: 9/2/2003
From: Bridgewater, NJ, USA
Status: offline 		Rudder all you can get with 70% expo

Elevator - 12 degrees low rate w/ 29% expo/ 17 degrees high rate w/35% expo.

Knife Edge Mix - 6% for up elevator each way.

Ailerons High rate - 15 degrees up/ 13 degrees down ,50% expo

Ailerons Low rate - 12 degrees up/10 degrees down, 45% expo

I am using a JR system. I flip to high rate, all rates on one switch for snaps and spins. I have no throttle to elevator mix for down lines. You may want to start with 2% down elevator mix at low throttle for starters. I use 5 degrees up ailerons deflection for landing. I use no braking function on my Hacker C50 13XL. Prop of choice is the APC 20.5X14.

This is where I am at the moment after 120 plus flights.

< Message edited by J Lachowski -- 9/21/2007 1:19:55 AM >


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Joe Lachowski
NSRCA 330

(in reply to mikedsilva)
       Post #: 128

RE: Beryll Flight Reports? - 9/21/2007 3:00:56 AM   
mikedsilva


 

Posts: 216
Joined: 1/4/2004
From: Brisbane, AUSTRALIA
Status: offline 		out of curiosity, when you run no brake, does your prop simply "windmill" when coming in for landing? or do you put a few clicks of throttle trim in place to act like an "idle" on a glow motor...

(in reply to J Lachowski)
       Post #: 129

RE: Beryll Flight Reports? - 9/21/2007 5:15:52 AM   
J Lachowski


 

Posts: 358
Joined: 9/2/2003
From: Bridgewater, NJ, USA
Status: offline 		I set an idle at about two clicks from dead stopped and fly the whole flight that way. My guess is somewhere between 1000 to 1500 rpm. Sometimes on landing I shut the idle down altogether.


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Joe Lachowski
NSRCA 330

(in reply to mikedsilva)
       Post #: 130

RE: Beryll Flight Reports? - 9/21/2007 2:15:14 PM   
sc204


 

Posts: 188
Joined: 7/30/2005
From: , NY, USA
Status: offline 		With no brake the prop will just windmill. With brake the prop will stop and help slow the plane down quicker. Some people use a very low idle for landing saying that it will act as a brake as opposed to letting the prop windmill. I didn't find this works on my setup and use the brake (low trim) on all but windy days. My throttle trim is a left sided slider making it easy for me to put on the brake or not.

Stuart

(in reply to J Lachowski)
       Post #: 131

RE: Beryll Flight Reports? - 10/8/2007 1:07:40 AM   
J Lachowski


 

Posts: 358
Joined: 9/2/2003
From: Bridgewater, NJ, USA
Status: offline 		Stu,

How about a flight report on the anhedral stab setup you installed?


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Joe Lachowski
NSRCA 330

(in reply to sc204)
       Post #: 132

RE: Beryll Flight Reports? - 10/8/2007 2:11:41 AM   
sc204


 

Posts: 188
Joined: 7/30/2005
From: , NY, USA
Status: offline 		As Joe said I put the anhedral stab on mine. I had some trimming issues that I thought may have been due to unequal elevator half tapers. Sam over at Oxai volunteered to replace the stab with one he had in stock which was the anhedral version. (Sam if you are reading this, the original will be on its way back to you this week )

As many have said about Oxai, replacement parts fit perfectly. Even with the anhedral in the stab, it mated perfectly to the fuse.

I probably have about 13 flights on it so far and finally got a low wind say last Sunday to play with trimming again. It seems to be fine and some of the issues I was seeing with the other stab appear to be gone. I can't say I see any significant difference in the rolling maneuvers although I do not do any of the integrated rolling/looping maneuvers that the anhedral stab is said to improve. Is it a gimmick or does it really help? I do not know but I can tell you that just like my first pattern ship a Hanno Pretner Magic with anhedral stab it does get lots of notice at the field

Stuart

(in reply to J Lachowski)
       Post #: 133

RE: Beryll Flight Reports? - 10/8/2007 6:46:58 AM   
flyf3a


 

Posts: 56
Joined: 5/2/2006
From: Port Elizabeth, SOUTH AFRICA
Status: offline 		Hi Joe

I have both versions, most notable was a 4% reduction in up elevator to rudder mix. Also found that the elevator to be more sensitive making point rolls and rolling manoevres easier. I also increased the wing incidence with a 1/2 turn and now vertical down perfect. All trims now 100% neutral. Is it a mind thing, maybe but to me it feels that the plane flies better. My second Beryll also came with composite wings, maybe this is the reasons. If you visit Oxai web site you will see that the new Naruke plane (Aries) also has anhedral stabs.

Burt

(in reply to J Lachowski)
       Post #: 134

RE: Beryll Flight Reports? - 10/8/2007 6:35:31 PM   
J Lachowski


 

Posts: 358
Joined: 9/2/2003
From: Bridgewater, NJ, USA
Status: offline 		I just may have to invest in an anhedral stab set for my Beryll. I also fly and Xtreme Composites Astral XX with the 4 degree anhedral stab. This plane is very easy to roll. Then again, it flys faster on an OS 140 RX. After not flying this plane for a while, I took it out yesterday and I forgot how easy this plane really rolls. Now I am having second thoughts about trying to sell it<g>


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Joe Lachowski
NSRCA 330

(in reply to flyf3a)
       Post #: 135

RE: Beryll Flight Reports? - 10/8/2007 6:45:01 PM   
darkvader



Posts: 138
Joined: 9/24/2003
From: Azeitao, PORTUGAL
Status: offline 		Does anyone knows if OXAI sell anhedral Stabs for Beryll Roland Matt Scheme painting?

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Best Regards
DV

(in reply to J Lachowski)
       Post #: 136

RE: Beryll Flight Reports? - 10/8/2007 6:51:53 PM   
sc204


 

Posts: 188
Joined: 7/30/2005
From: , NY, USA
Status: offline 		I did notice a slight elevator trim change when switching stabs. With the original stab I had a slight amount of up trim in the elevators. Now I have a slight amount of down trim. Could be due to the change to anhedral or simply differences in the stab tips to the stab and where I centered the elevators for the first flights. In any case the elevators are now just below the stab tips. One thing I have noticed is the Beryll is more difficult to stall turn than my Pinnacle. The Pinnacle is easy to try to push the limits with as it stalls very well. Without a crosswind hitting the side of the Beryll it wants to flop. I doubt it is the stab change but I didn't have enough time on it with the original stab to say for sure.

Stuart

Oxai does sell the anhedral stabs and can likely get you a perfect match to which ever scheme that you currently have. My replacements were in stock and matched perfectly.

(in reply to J Lachowski)
       Post #: 137

RE: Beryll Flight Reports? - 11/8/2007 12:26:05 AM   
Brenner


 

Posts: 70
Joined: 7/23/2007
From: Bridgman, MI, USA
Status: offline 		I've just been told that Oxai has discontinued the Beryl. Does anyone know anything about this?

(in reply to sc204)
       Post #: 138

RE: Beryll Flight Reports? - 11/8/2007 2:55:49 AM   
Troy Newman


 

Posts: 2377
Joined: 12/30/2001
From: Goodyear, AZ, USA
Status: offline 		No this is not true.

The Beryll is still in production. Why would Oxai stop production on a model that is making its World Championship debut this week.

Brenner, if you would like to discuss this issue please contact me offline

troy_newman@msn.com

Troy Newman
Team Oxai

(in reply to Brenner)
       Post #: 139

RE: Beryll Flight Reports? - 12/9/2007 8:36:35 PM   
mikedsilva


 

Posts: 216
Joined: 1/4/2004
From: Brisbane, AUSTRALIA
Status: offline 		I must confess to not being a "pattern pilot" but really enjoy flying my Beryll as an advanced electric plane. It is fitted out with Hacker C50 14XL and currently using a 20x15 prop. I have my batteries as far back as they will go; they are up against the plywood bulkhead behind the landing gear plate. Located here, I find I am still using a little downstick to maintain inverted flight and am wondering if I should be making a new longer battery tray to put the batts even further back...

Has anyone had to do this to their Beryll yet?
Also, what props are others using?

regards

Michael

(in reply to Troy Newman)