StuartAberdein
I'm New Here
I have an RV-7 with an O-360 and Sensenich prop. The Weight & Balance details are:
Metric US
Empty weight 498.8 kg 1,099.9lb
Empty C of G 206.3 cm 81.2 in
I weight 80kg / 176lb so solo aerobatics aren't a problem. However as soon as I take a pax weighing more than about 65kg / 143lb, the centre of gravity moves beyond the aft limit for aerobatics. If I load more fuel, the C of G moves slightly forward but I am then over the 1600lb max aerobatics limit.
I did see the email from Van himself saying that fuel isn't included in aerobatics weight but it seems quite controversial.
I am not planning high G aerobatics and will be able to stay well within the "Utility" limits of +4.4 / -1.75. If I were to take say a 100kg / 220lb passenger, which option would be safest:
Weight C of G
1/3 tanks 1577lb 85.2 in (aerobatic max = 84.5in)
Full tanks 1745lb 84.7in
My guess is 1/3 tanks but how problematic is being 0.7in behind the aerobatic C of G limit?
I am sure I'm not the first to have this problem. Any ideas?
Stuart Aberdein
Metric US
Empty weight 498.8 kg 1,099.9lb
Empty C of G 206.3 cm 81.2 in
I weight 80kg / 176lb so solo aerobatics aren't a problem. However as soon as I take a pax weighing more than about 65kg / 143lb, the centre of gravity moves beyond the aft limit for aerobatics. If I load more fuel, the C of G moves slightly forward but I am then over the 1600lb max aerobatics limit.
I did see the email from Van himself saying that fuel isn't included in aerobatics weight but it seems quite controversial.
I am not planning high G aerobatics and will be able to stay well within the "Utility" limits of +4.4 / -1.75. If I were to take say a 100kg / 220lb passenger, which option would be safest:
Weight C of G
1/3 tanks 1577lb 85.2 in (aerobatic max = 84.5in)
Full tanks 1745lb 84.7in
My guess is 1/3 tanks but how problematic is being 0.7in behind the aerobatic C of G limit?
I am sure I'm not the first to have this problem. Any ideas?
Stuart Aberdein