Here is an old post regarding spring gear weight.
More info at post# 15699-15717
From: "WAYNE G. O'SHEA" <
OIFA@IRISHFIELD.ON.CA> Number: 15717 Private:
No
To: ALL Reference: None Reads: 36
Date: 2/27/2004 12:40 PM Received: No Exported
Subject: Re: Spring gear leg wieght
Conference: Rebel Builders
Well this weeks wakes and funeral are out of the way, so I've had a bit of
time to add to this today.
Weighed a set of aluminum gear legs (main/drag brace/joiner gusset
etc-everything but axle and wheel assembly) and bungee struts/safety cable
and bungee loops with bracing and cover of .025 = 14lbs
Same gear legs but with my 6" die spring struts instead = 20lbs
Pair of leaf gear legs with outboard saddle brackets = 20lbs
Therefore there would be no net difference between the "piper style" gear
legs using my die spring struts and the "leaf" leg gear when it comes to
installing the floats, other than maybe the minimal weight of the bolt on
float brackets for strut pickup at the fuselage if you have the leaf gear.
The overall empty weight of the aircraft is another thing due to the plate
doublers in the fuselage construction, but even that isn't extreme since it
amounts to the weight of about a 2.5' x 4' piece of .063 6061 T6 and three
or four hundred RV1613/9 rivets....nothing else!
Cheers,
Wayne
On 1/18/2006 10:35 AM,
beep@sympatico.ca wrote to rebel-builders:
->
-> Hi John !
->
-> Thanks for the kind words - and the numbers ! Now we have a
-> definite number - 35 lb. just for component difference....
-> should make the choice clear for anyone wanting to fit ELSA !
->
-> The McKenzie STOL kit, cuffs & fences only added about 13 lb.
-> total - it does help low-speed performance. The current Fife
-> wing tips have a setup for lightweight landing lights - IF you
-> want them for improved visibility. Otherwise, just go with
-> the nav/strobe combos - I saw the GS-air LED units at Sebring -
-> very impressive, and only $327 USD for complete package !
->
https://ssl.perfora.net/gs-
air.com/sess/utn;jsessionid=1543b2bd350d65c/shopdata/index.shopscript
-> or:
->
http://www.gs-air.com
->
-> Let us know which mods you are considering skipping - depending
-> on engine choice, most are essential ! Definitely need the FUS-30
-> doubler, and I would recommend Wayne's firewall plates, even if you
-> choose a 912 - the Rebel needs that extra weight up front ! Also,
-> that 1 1/2" or 2" channel along the full width of the bottom of
-> the instrument panel will strengthen the whole structure, and help
-> prevent throttle variations/fluctuation when taxiing on rough ground.
->
-> .....bobp
->
-> -------------------------------orig.-------------------------
-> On Tuesday 17 January 2006 11:11 pm, John Kramer wrote:
-> > Ron,
-> >
-> > Before I learned enough: to find this list, and then to ask the right
-> > questions, and then listen to the right people; someone at MAM
-> > convinced me the spring gear would be better in crosswind landings,
-> > that it was stronger, and offered no weight, or other penalty (I'm
-> > trying to build for 1320 gross and maximum utility) MAM shipped out
-> > the spring gear and I weighed all components (legs, wheels, brakes,
-> > &c.) against all components for the bungee gear that came with my
-> > kit. My scales showed a 35 pound difference, in just component
-> > weight. When you add in the required reinforcements the weight is
-> > more than significant.
-> >
-> > The fancier wheels and brakes certainly were nicer and the spring
-> > gear prettier to my eye, each piece was considerably heavier than the
-> > original equivalents. Once I get her standing I'm planning on
-> > Wayne's spring mod, I've already ordered Fife tips, but doubt my
-> > weight limitations will allow for Angus' cuff's. If I was building
-> > to full gross with a fat motor I'd have them for sure. I'm very
-> > carefully picking through the Ontario Mods as I can't afford them
-> > all, for a light plane some seem more important than others.
-> >
-> > I was fortunate that Robin agreed to accept the return. I get the
-> > feeling that doesn't often happen.
-> >
-> > I have learned to first search the archive, then ask, then listen to
-> > Wayne, Bob, Walt and the others who give so freely of their
-> > considerable knowledge. Without this resource I'm certain far fewer
-> > Rebels would ever fly.
-> >
-> > John...369R
-> >
-> > At 06:23 PM 01/17/06, you wrote:
-> > >How much heavier is the Rebel spring gear, compared to the bungee?
-> > >
-> > >Ron
-> > >
-> > >
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