Weight and balance numbers

hydroguy2 · Post by **hydroguy2** » Fri Oct 01, 2010 10:06 pm

I've been doing a little searching for W & B numbers but things get a little scattered. so was wondering has an ideas how much my my -7 should weigh? My goal 4 yrs ago was 1075# but now think it will be heavier than that.

Painted RV-7 w/ pants and fairings, IO-360, WW200RV prop w/2.25 spacer, James long cowl, plenum, seats and front carpet, light duty panel. ELT and Strobe pak behind Pax seat. oversize main tires(+5#)

What numbers should I expect to see?

cjensen · Post by **cjensen** » Sat Oct 02, 2010 8:01 pm

My guess for your airplane with paint is 1100 +/- 20. My buddy's 7 is 1171 with your exact configuration, a little heavier panel with more steam in it.

cjensen · Post by **cjensen** » Sat Oct 02, 2010 8:03 pm

I shouldn't say exact...Van's cowl, and standard tires.

Wicked Stick · Post by **Wicked Stick** » Sat Oct 02, 2010 8:21 pm

My RV-8 came in at 1092 empty, primed but not painted, less wheel pants.
I figure it will end up around 1,125 once painted and panted.

hydroguy2 · Post by **hydroguy2** » Sat Oct 02, 2010 9:09 pm

cjensen wrote:My guess for your airplane with paint is 1100 +/- 20. My buddy's 7 is 1171 with your exact configuration, a little heavier panel with more steam in it.

Neil and I were discussing it yesterday and 1100# is my new hopeful number, but could easily be 1130.

Post by **bullojm1** » Sun Oct 03, 2010 1:39 pm

Brian,

Just as a data point, mine came in at 1074 lbs, without leg fairings, gear fairings or paint. I have the 200RV prop in my configuration.

- Mike B

hydroguy2 · Post by **hydroguy2** » Sun Oct 03, 2010 3:47 pm

Thanks Mike, I was wondering how yours come out.

Compared to yours, mine with paint and sparse interior maybe I'll get 1111. we know next week i guess.

hydroguy2 · Post by **hydroguy2** » Wed Oct 13, 2010 1:28 pm

So I'm taking guess's.....what's my weight?

BTW I was shooting for 1075-1080#. But hadn't figured on big tires, special paint job, etc. I'll post the numbers later tonight.

Post by **Spike** » Wed Oct 13, 2010 1:41 pm

I haven't a clue but that looks tail high to me.

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Subject: Weight and balance numbers

So taking guesses? what's my weight? BTW I was shooting for 1075-1080#. But hadn't figured on big tires, special paint job, etc. I'll post the numbers later tonight. Brian Townsend, MT rivetbangers.com - Discussion topic http://www.rivetbangers.com/forums/viewtopic.php?p=35213#35213

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Post by **bullojm1** » Wed Oct 13, 2010 1:53 pm

1115 is my guess.

cjensen · Post by **cjensen** » Wed Oct 13, 2010 2:15 pm

Spike wrote:I haven't a clue but that looks tail high to me.

It's a weird optical illusion when the TD's are being weighed...the canopy deck is level, but the airplane looks nose low.

I'm gonna go 1119, just inside my original range that I guessed.

BSwayze · Post by **BSwayze** » Wed Oct 13, 2010 3:01 pm

Okay... I'll bite...

Since the last couple of estimates seem to be going up, I'll top that and guess 1125.

What's the prize for the winner???

captain_john · Post by **captain_john** » Wed Oct 13, 2010 3:47 pm

Hmmm, lots of paint on that bird...

I am thinking 1122...

Hey! You gotta change your avatar soon!!!

CJ

hydroguy2 · Post by **hydroguy2** » Wed Oct 13, 2010 4:12 pm

Ok, ok, I'll tell you. And the winner is.......none of us, but I am the winner because it came in better than I thought it was going to. (the paint had me scared) Chad originally picked 1100, i think, but he feared the heavy looking paint also.

Certified aviation scales.

right main 511# at 68.5"
left main 514# at 68.6"
tail wheel 70#

Total 1095# @ 80.2"c.g.

I worked hard to keep the weight down and forward.

Post by **Spike** » Thu Oct 14, 2010 7:37 am

Thanx for the info on the illusion Chad.

As for the weight, I am highly impressed. I would have thought well over 1100, but that would be emotional and baseless. Good for you!

Spike

cjensen · Post by **cjensen** » Thu Oct 14, 2010 8:28 am

Excellent number Brian!!

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