MultiGP classes: one organiser's rules for its own races.

What this page rests on

MultiGP sells race sanctioning and runs a league, so on this site it is treated as an organiser: its classes are its rules for its races, not general facts about drone racing. Its full rules are in a Rule Book, which its rule-book page describes as covering how to fly in and run a MultiGP race, including the class spec rules. The site's navigation labels it "Rule Book 2025". That Rule Book is a linked document that never appeared in a search result, so this site's research did not read it.

What follows comes from MultiGP's Race Class Specifications page, which is undated, refers to the "Rule Book 2026" and carries a 2025 copyright footer. Where the Rule Book says something different, the Rule Book and the race's own published rules decide.

The classes

Motor sizes such as 2207 and 2808, and the KV rating, are used by MultiGP as limits, but this site's research found no standards body that defines those naming conventions, so they are given here only as MultiGP's labels. What the parts are is on the motors and propellers page.

About size words

The hobby talks about "5-inch" quads and "Tiny Whoops". This site's research found no body that defines a class by those names other than MultiGP's own Whoop and 5" Spec entries above, and the FAI's F9 volume defines its single racing class, F9U, by limits rather than by a size name. So "Whoop" on this site means MultiGP's Whoop class as written, and nothing broader.

Gate sizes

MultiGP's class page lists a gate for each class. It gives the Open Class gate as 5 ft by 5 ft (1.52 m square) and the Whoop gate as 30 in by 30 in (762 mm square), and its gate table also lists a 7-inch gate of 42 square feet and a "Mega Class" gate of 12 ft by 12 ft, without any Mega Class specification on that page.

Two points are not settled:

• The Micro gate. MultiGP's class page gives the Micro gate opening as 1,680 square inches and, in the same entry, as 40 in by 48 in, which would be 1,920 square inches (re-read on 30 October 2026). The two figures do not match, so this site gives no single Micro gate size; the race's published rules decide.
• The largest gate. MultiGP's track and build guide page (titled "2027 TRACK & BUILD GUIDE" but built around a 2026 track diagram dated August 2025) caps a gate opening at 7 ft wide by 6 ft tall, larger than the class page's 5 ft by 5 ft Open gate (the class page gives its 42 square foot 7-inch gate as 7 ft by 6 ft, per the same re-read). A third body, the Italian sports organisation Centro Sportivo Italiano, says in its 2025-2026 rule book that its tracks follow MultiGP standards with a maximum of 2 m by 2 m; that is from a search summary, and the Italian PDF was not opened.

Video power and antennas

MultiGP's class page sets no video-transmitter power limit for each class. It says that where a race does set a 25 mW limit, the aim is to cut interference between pilots, and that models must allow quick, accurate changes of video channel.

For one example of a race-level rule: a MultiGP race listing from the 2023 outdoor season required Open Class pilots to carry both right-hand and left-hand circular antennas and to run the video transmitter at no more than 25 mW. Whether current races use the same wording is unconfirmed.

The FAI does it the other way round: its F9U rule (2025 edition, C.1.5) fixes 25 mW for every video transmitter at every FAI event. These are separate rule sets.

Pro Spec video: MultiGP's two pages differ

MultiGP's class page says any video transmitter is permitted in Pro Spec. MultiGP's Pro Spec page for the 2025/26 season names the permitted systems more narrowly, as any HDZero or analogue video transmitter and camera. The two MultiGP pages disagree, and the season's published rules decide.

Mega Class

MultiGP added a Mega Class safety section to its rules in 2019, for drones of 800 to 1050 mm, which it said carried added risk. That section set a greater distance from track to pilot line, rules on track design and control of access to the course. Whether it is still in the current Rule Book was not checked.

MultiGP is not the FAI

MultiGP's limits and the FAI's F9U limits differ on several points, for example cell voltage (4.35 V in several MultiGP classes, 4.25 V under F9U) and weight (800 g for MultiGP Open, 1 kg for F9U). Neither body's rules apply at the other's races, and this site never merges them. For the FAI's class see the FAI F9U rules. Both bodies' rules sit under each country's aviation law, covered in the law pages of this section.