Has anyone had trouble with the supplied engine mount for the Tower Hobbies Trainer 40 ARF?

The Tower Hobbies Trainer 40 ARF comes with an engine mount that uses a top plate to hold the engine to the mount, instead of the standard, drilling through the engine mounting holes directly into the engine mount. This configuration looks like it might allow the engine to slide or twist on the mount.

Any advice/experience is much appreciated.

Shouldn't be any problem. These mounts give actually a pretty strong hold. I am still flying my old Hobbico 60 size Trainer with a Irvine 72 on one of these mounts, and there is no slip or movement. Just make sure you check it once in a while. No worries.

I think they do that so that the mount has some give when you pound the nose into the ground. Not that you are going to pound the nose into the ground...
I had a Hobbypeople Airmaster 40T (wish they still made those) that used that mounting setup and I never had the engine move. Except when I pounded the nose into the ground.

I have this exact setup with a Magnum 52 with over 100 flights no problem [8D]

yeah, i gotta admit it seems a little dicky to me.

I guess any mount is only as good as the nuts and bolts holding the motor down.

I began using bakelite mounts on the motor, which would then bolt to hardwood bearers in the plane. The idea is that in a crash, the plate would break allowing the motor to escape with less chance of breakage, and potentially less damage to the fuselage. (kind like breakaway engine mounts in the crumple zone of a modern car)

I recently used to use nylon engine mounts, screwing the motor directly to the plastic mount. Cheaper, easier and again the bearers would break in the event of a crash.

the Mounts that require a metal plate to "clamp" the motor down, from what I have observed so far, are all made of alloy. Am i right? Looks a little inflexible to me and i prefer the idea of the bolts going through the actual lugs. If a nut came loose, you still have a chance to realise a "wobbly" motor. (use lock nuts of course, so vibration wont let them fall off).

Again, i repeat that any solution is only any good if the bolts are tight and inspected regularly (as the previous posts would attest). However, I believe that bolting directly to a mount (using locknuts) gives you a wider window of opportunity to find any possible problems.

While I am here, does anyone know of a special mount for a magnum 4stroke rear induction motor?? this is my first 4 stroke!!

I have the Trainer 40.....with the engine mount you mention.I replaced the screws with #8 cap screws so that I could us an allen wrench instead of all that down pressure needed with a philips screw. In my view....the engine may shift or become loose....but it can't escape the aircraft. Use a little locktite on those nuts....I don't forsee any problem with Tower's mount. One other point.....putting in a little right thrust is a breeze. Not so easy when you drill those maple mounts. I've spent hours mounting an engine with proper right thrust & down thrust and no binding of the throttle linkage. That's just part of the hobby don't you think???

Flash