Question: Once the fuel tank is assembled how do I install and secure it into my VMAR Trainer?

Answer: After assembly and pressure test, install the tank with the metal tubes protected and facing up. Use sealant to secure the black gasket to the tank and firewall from behind. Seal around neck from front. Support & surround tank with sponge foam.

Better Answer: VMAR Trainers and other non-cowled VMAR models generally do not have a power module. After tank assemly per the instruction book (all tanks assemble in a similar manner) do a pressure test and then protect the metal tubes from contamination by taping up the open ends or running a short length of fuel line between the metal tubes. Now apply sealant to both sides of black donut like rubber gasket and around the neck of the tank. Use Pacer Dap-A-Goo or clear silicone. Install the tank into the fuel tank compartment of the fuselage with the metal tubes facing up. Press the tank and sealant bead firmly against the back of the firewall and secure the tank while the sealant cures. Seal around the neck from the front of the fuselage to prevent fuel seapage into the fuselage. Support and surround the tank in the fuel tank compartment with sponge foam.

Note that in most cases, the receiver batttery pack is to be wrapped in cling film and installed beneath the fuel tank. Consult your radio manual for more information. In this case, the sponge foam should be arranged to support the tank and the battery pack.