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Here's the data from my W&B page of builders log.
Left main : 448
Right Main :436
tail wheel :50
Tot. Empty weight : 934
Empty CG Moment : 68.675
This was prior to paint and a few other instrument panel meters
& GPS.
The airplane gained weight due to several later additions like electric
flaps, paint, better plenums, leather seat cushions.
Then it lost some weight due to removal of extra battery (15 lb), lighter
engine mount (6 lbs), oil filter plumbing (3.5 lb) Renesis engine (13 lbs),
lighter intake manifold (6 lbs), redrive mods (3 lbs), removal of oil/coolant
heat exchanger in oil pan (2.2 lb) and several other minor things that I have
lost track of.
What the empty weight is now is not known but I can tell the CG is further
aft. I used to carry up to 240 lbs in back seat with neutral
stability. Now it happens at 220 lbs so that is my new upper limit for pax
weight.
Tracy
Subject: [FlyRotary] Rotary installed
weight comparison
..(this was the thread about the [FlyRotary] Re: Rotary - FWD
from Lancair ES List )..
Here's info for a rotary installation
comparison if Tracy can recall his last W&B on his RV-4. Tracy, how
does your plane compare to this?
- My RV-4 is bone stock VFR with lights (think J3-with-a-speed-kit) first
flown in '96.
- Lyc O-320 E2G, 150 HP, 2 mags, carb, no vacuum system, one radio and
transponder
- Sensenich FP metal prop with 2 2" spacers (41 pounds total for prop
& spacers)
- That big stock boat anchor starter
- Heavier than necessary 10 ply tires (extra 6#) because they were on
sale.
Empty weight 979# with 48# on the tail wheel
Empty CG 69.25
inches (using the 60 inch datum)
Mike McGee, RV-4 N996RV, O320-E2G,
Hillsboro, OR
13B in gestation mode, RD-1C, EC-2
At 09:00
2006-03-23, you wrote:
It varies a lot depending on
builder choices but I would put it closer to an O - 320, a 30 - 45 lb
difference depending on which of the many versions of the IO - 360 that
Lycoming made). The counterweighted crankshaft on the angle valve
IO-360 (200 HP models) accounts for a 28 pound increase
alone.
Tracy
- Hennie,
- I’m told the 2-rotor will come in about the same as an IO-360
installation. This is a very common install in the RV-6, also in the
RV-4 (Tracy Crook). If you’re really interested, you can get onto
the Fly Rotary group. Good bunch of guys and they will be able to
answer any question you may have about the rotary.
- Mark
- From: Rotary motors in aircraft [
mailto:flyrotary@lancaironline.net] On Behalf Of Hennie van Rooyen
[HQP]
- Sent: Thursday, March 23, 2006 5:56 AM
- To: Rotary motors in aircraft
- Subject: [FlyRotary] Re: Rotary - FWD from Lancair ES
List
- Hi Mark and
anyone,
- " Mazdatrix recently dyno’d a
N/A peripheral-ported 13B for Paul Lamar at 250hp @ 6000rpm, running a
carburetor. That is an easy 125hp/rotor, and 250 hp from a 195#
engine."
- What would be a
reasonable firewall forward weight of such a N/A complete installation?
What I really want to know is what is the lightest installation to be
expected based on average experience?
- Regards,
- Hennie
-
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