Al,
My gearbox failure was approx. 1-1/2 years ago. I attributed the failure to a very rough running engine which was cured with a mod to the EC-2 and CAS. I was lucky that it happened on the ground. (Ed can keep his "King of Dead Stick Landings" plaque, thank you!)
If I am correct, Tracy installed a 3/8" pin in my input shaft. No failures since. I now have approx. 200 hours on the engine/gearbox.
Mark
On Mon, Jul 11, 2011 at 10:23 AM, David Leonard <wdleonard@gmail.com> wrote:
From: Al Gietzen <ALVentures@cox.net>Date: Mon, Jul 11, 2011 at 8:17 AM
Subject: RD-1B failure To: Dave Leonard < wdleonard@gmail.com>
Hi; Dave,
I’m very thankful to hear that this occurred after landing.
I’ve been unable to post on the rotary engine list for months due to blocking by Cox. Perhaps you’d post this message on my behalf:
---The shear pin on the sun gear is the most likely candidate since it was sized for a normally aspirated 13B. After the failure on Marks 20B, I have changed the pin diameter
Tracy;
Doesn’t this suggest that all 20B and 13B turbo should be upgraded to the larger pin? When was the failure on Mark’s 20B?
Al
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