roadrunner20
Well Known Member
Thought I'd list my W&B changes as related to my 7A to 7 conversion.
7A empty weight = 1081 lbs
7A empty weight ARM = 81.88
7 empty weight = 1065 bs
7 empty weight ARM = 81.11.
CG moved forward slightly, which was good news as I'm usually on the aft side with low fuel while using the the catto 3-blade prop.
The 16 lbs reduction was as expected when losing 10# of in cabin gear weldments.
The new engine mount was slightly heavier when you add the gear mount tubes, although I didn't weigh it.
The 7 gear legs were a little longer than the A models so this would have increased the weight somewhat. But, when you consider losing the nose gear, fork & tire assemebly, that would account for the differences.
I'll post some speed numbers next week. Looks like I'll be back in the air this weekend. Some have said I should gain around 2-4kts increase in speed. We shall see.
My only regret with the whole conversion is that I did it during some prime flying weather here in Florida.
It will be great getting back in the air again
7A empty weight = 1081 lbs
7A empty weight ARM = 81.88
7 empty weight = 1065 bs
7 empty weight ARM = 81.11.
CG moved forward slightly, which was good news as I'm usually on the aft side with low fuel while using the the catto 3-blade prop.
The 16 lbs reduction was as expected when losing 10# of in cabin gear weldments.
The new engine mount was slightly heavier when you add the gear mount tubes, although I didn't weigh it.
The 7 gear legs were a little longer than the A models so this would have increased the weight somewhat. But, when you consider losing the nose gear, fork & tire assemebly, that would account for the differences.
I'll post some speed numbers next week. Looks like I'll be back in the air this weekend. Some have said I should gain around 2-4kts increase in speed. We shall see.
My only regret with the whole conversion is that I did it during some prime flying weather here in Florida.
It will be great getting back in the air again
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