Following is Van's Drawing OP-16 which details the rear mounted battery location for the RV-7.
This drawing was included in Van's early RV-7/7A plans, but was eliminated later on as deemed not necessary. I'm putting my battery here since it nicely balances the forward cg of a heavier 200/210 hp engine & nosegear configuration. Taildraggers or lighter engine versions should always go with the standard firewall battery mount.
Construction is simple, and requires ordering one extra F-729A rib (for $11.50). I'm grounding the battery to the airframe here (per Bob Nuckolls AeroElectric Connection), and running the heavy gauge + battery feed & battery switch wires through black tubing to the forward firewall. A smaller gauge power feed from the battery for my flaps & pitch/roll trim goes directly to CBs on the flap motor housing, with stick trim/flap relays located under the right passenger seat. This saves a few wire runs from the instrument panel.
I hope this helps someone out there...
Cheers,
This drawing was included in Van's early RV-7/7A plans, but was eliminated later on as deemed not necessary. I'm putting my battery here since it nicely balances the forward cg of a heavier 200/210 hp engine & nosegear configuration. Taildraggers or lighter engine versions should always go with the standard firewall battery mount.
Construction is simple, and requires ordering one extra F-729A rib (for $11.50). I'm grounding the battery to the airframe here (per Bob Nuckolls AeroElectric Connection), and running the heavy gauge + battery feed & battery switch wires through black tubing to the forward firewall. A smaller gauge power feed from the battery for my flaps & pitch/roll trim goes directly to CBs on the flap motor housing, with stick trim/flap relays located under the right passenger seat. This saves a few wire runs from the instrument panel.
I hope this helps someone out there...
Cheers,
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