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Sorry to double up here but while the site indicates that they have an all aluminum housing, have they got any run time on it? I hate to be skeptical, but even the RB housings, which certainly exist, have been holy grail level of scarcity. We need to see some hour long 70% dyno runs on these things before we even consider using them in an airplane.
Bill
-----Original Message-----
From: wrjjrs@aol.com
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, Aug 3, 2010 5:20 pm
Subject: [FlyRotary] Re: Bad rotary week
Bruce,
If you can find the aluminum 20B intermediate housing anywhere please let me know who is making it. The price for the STOCK cast iron 20B intermediate housing has gone to about $5000.00 on the retail market. I know, Steve and I have been trying to buy one! The stock 20 B intermediate housing weighs 49 pounds! The side housings George was mentioning were custom lightweight housings made in steel that weigh about 1 pound more than the all aluminum housings IE. in a 2 rotor they would be about 3 pounds over the all aluminum parts. The advantage is that you can gas nitride them just like the stock parts. None of the available aluminum housings has ever been run in a long term high-output engine. The Factory Mazda 26B 4 rotor Le Mans engine used aluminum sideplates with an exotic detonation gun applied ceramic coating. No one has reproduced those housings for sale. To my knowledge none of our flying rotaries has used the Racing Beat housings, which are available only for the 13B and are VERY pricey. They also have been notorious for extending delivery times on those housings.
Bill Jepson
-----Original Message-----
From: Thomas Mann < tmann@n200lz.com>
To: Rotary motors in aircraft < flyrotary@lancaironline.net>
Sent: Tue, Aug 3, 2010 3:02 pm
Subject: [FlyRotary] Re: Bad rotary week
The Aluminum rotor housings will save you 15 lbs each.
I'm not sure how much (in weight) the Aluminum side housings will save you but they are available as well.
The 20B Center Housing can be had (in aluminum) as well but it is a bit pricey at $5K +.
All available through www.rotaryengine.com
Bruce T. put me on to them.
From: wrjjrs@aol.com
Sent: Tuesday, August 03, 2010 4:36 PM
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Bad rotary week
Thomas George was speaking of the side plates/intermed housings.
Bill Jepson
-----Original Message-----
From: Thomas Mann < tmann@n200lz.com>
To: Rotary motors in aircraft < flyrotary@lancaironline.net>
Sent: Tue, Aug 3, 2010 1:33 pm
Subject: [FlyRotary] Re: Bad rotary week
..... or go with the aluminum housings already P-Ported. It saves 15 lbs per rotor.
From: Dwayne Parkinson <dwayneparkinson@yahoo.com>
Sent: Tuesday, August 03, 2010 3:20 PM
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Bad rotary week
Lightweight carbon steel housings? Where exactly do I find those?
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