Depending on the state you should have coverage under the contents portion of your policy... I have worked in the insurance field for 15 + years both as an agent and now as a claims examiner for a property company. The normal policy is what is known as an HO-3 policy and covers your contents for 16 defined perils. Fire and theft are both covered, in fact your contents are covered anywhere in the world for those 16 perils. It sounds like the company had your RC gear schedualed on a rider. This is a common way to get a limit outside of what comes normally with the policy. It also covers the items schedualed for (all risk) with a few exclusions. Yes it would even cover your plane if you "Auger" it in or step on it, shut it in the door of the car, drop it, etc. Those things are NOT normally covered under the basic homeowners. I would suspect that due to the risk factors involved with RC and the premium the insurance company is getting for the risk that they have looked it all over and come to the conclusion that they can't schedual the items. This should not effect coverage under your basic policy for the RC gear nor effect the liability coverage for damage to others property or bodily injury. In short you should check with your agent and ask specifically if coverage for the RC gear exists under your homeowners. IF so then look at the limit for contents and if it is not enough ask him to increase it to cover all of your property. There will be a minimal charge. DO not let him tell you that RC planes are excluded because they are considered Aircraft under your policy. If the agent says this tell them to research it in their trade bullitens. Model Airplanes are concidered models and should be fully covered under the policy. If you need any other help PM me and I will try to help where I can..
I know another company in the North East that paid over $10,000 for a jet model that exploded in the air at a local field. This was all under the basic homeowners policy with no riders.
Jeff