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Greg,
The best middle ground I've seen so far is the
peripheral ported engine. PL's PP recent attempt on an RX8 engine was 264hp at
our RPM's ( 7,500 I think). The RX8 rotors are higher compression but will go
into a RX7 engine. I'm putting one in a single rotor with 3mm apex seals, if I
could get a little less than half of that I would be happy.
What exactly is your power
requirements.
George ( down under)
Hey Bill;
I hear you, and I asked Camden some of these same
questions, awaiting a reply. Their unit mounts directly to the block,
and appears well engineered, but as I said earlier, endurance, and what
happens if it blows, is my main concern. Been around the 1/4 mile tracks
for more years than I care to remember, and have seen a little excitement when
the old Gimmy 4-71's and 6-71's decided to cash in, not pretty.
Conversely, watching a turbo melt or lose a turbine blade doesn't get me real
excited either.........trying to find the best middle of the
road.
Greg
----- Original Message -----
Sent: Tuesday, December 18, 2007 7:29
AM
Subject: [FlyRotary] Re:
Supercharging
Greg,
Superchargers are sometimes simpler to implement, but there are other
reasons they aren't as popular on aircraft. First they are a power robbing
device. There is a net gain in power of course, but the charger can require
10-15 HP to drive it at WOT and it makes the engine less efficient. The
other problem is you must be sure the unit is up to continous use in the
boost RPM range. Lastly the mount must be solid enough to hold up to
continous use as well.
Bill Jepson
-----Original Message-----
From: Greg
Ward <gregw@onestopdesign.biz>
To: Rotary motors in aircraft
<flyrotary@lancaironline.net>
Sent: Mon, 17 Dec 2007 10:32
pm
Subject: [FlyRotary] Supercharging
As I have cruised around, looking at options, I came
across www.camdensuperchargers.com, who make kits for
rotaries. Has anybody had any experience with this? I like the
idea of less heat, and plumbing, but how about endurance? I know John
Slade had a lot of fun until he got the right Turbo, I wonder if the
situation would be any different with this.
Greg Ward
(trying to get into the air)
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