As an added service to our customers we are offering drop shipping AT NO ADDITIONAL CHARGE on this item. We are working together with our suppliers so that we can ship the Hyperion planes directly from them. Please refer to our FAQ page for more information about our drop shipping policy.

This size of model is easiest to classify as "engine 25 size", simply because no clear rating system exists for larger electric models. In fact, we realized after flying the Mustang that it's light - but that it is also rugged. So we added two mounts to the kits. One is for brushless outrunners and the other fits 0.25 ci glow engines, in case that's your preference...

What we love best about this Mustang is the combination of sweet manners (often not the case with Mustangs!) and wide speed envelope. With a 10x7 prop she has good speed and plenty of thrust for large loops, but barely uses 340W maximum power. You could use a battery as small as HP-LVX2100-3S with this setup. But we recommend the HP-LVX2500-3S or HP-LVX3300-3S instead, for longer duration when you use the APC "E" 10x10 prop. With this setup the P-51 still slows down nicely when requested, but is also capable of blazing-fast low passes and absolutely HUGE loops.

Tuning for Smooth Power

Powerful motor sets, and particularly "outrunner" motors which have a large rotating mass at high rpm, need to be carefully tuned to insure that vibration does not occur. When assembling your Mustang, do the following:

(1) Apply Thin Double-Sided Tape across the entire surface of motor mount base where it meets the firewall (or use a THIN film of silicone sealant). This helps damp small amplitude vibrations which are normal even with a balanced system.

(2) Tighten screws for Mount/Firewall very well, and use thread locking compound (loctite).

(3) Use all four screws to mount the motor to the motor mount. Tighten well, use loctite.

(4) Carefully balance the propeller.

(5) Balance spinner (see below for tips). Be sure to mark the spinner cone and base (backplate) to keep their relative positions in future.

(6) Tighten the 3mm screw which holds spinner cone to base well, and use loctite.

In many cases the spinner will already be sufficiently balanced. In other cases, both the spinner cone and backplate may have small imbalances, which can be corrected by rotating the heavy side of the cone over the light side of the back plate.

In the event that significant imbalance is found, first remove with sandpaper any overspray of paint from inside cone and both sides of backplate, and re-check balance. If required, then balance the backplate alone. Once the backplate is balanced, fit the spinner cone and rotate it to several positions relative the backplate until best balance point is found. For any remaining imbalance, use a strip of vinyl tape inside the spinner cone at light side.