The designation XP-51F was assigned for prototypes powered with V-1650 engines. A small number of P-51Fs were passed to the British as the Mustang Mk V. P-51G (NA-105)

It is an odd fact that no inflight photos were ever taken of the XP-51F, G, or J. It seems that pilots and other people were too busy with wartime testing to schedule photo sessions. In later years, historians have looked in vain for a photographic record of these lightweight Mustangs in the air.

5 天之前 · The XP-51G clocked in at 492 mph at 20,700 feet, the fastest yet. The new Rotol prop was not very stable but the climb performance was very good: 3.85 minutes to 20,000 feet. The second XP-51G was shipped to Brittan with an RAF serial of FR410 for evaluation. THe XP-51G was essentially the XP-51F with the new engine and prop.

xp-51f技术验证机. 其中xp-51f共计制造了3架，搭载了与p-51b/c相同的派卡德·梅林v-1650-3型发动机，以及航空制品公司制造的直径为3.35米的3叶铝制螺旋桨。

lightweight Mustang, the XP-51F, whose empty weight was to be less than 6,000 pounds. In January 1943, representatives of North American Aviation submitted to the Air Materiel Command a new design for a fast, highly maneuverable, and high rate-of-climb fi ghter airplane. The new design resembled the production P-51B

xp-51j（艾利森v-1710-119） 这三种试作型号均较D型减去将近一吨空重、且大量优化细节处理的改造案获致了惊人的性能提升，其中以XP-51G最为成熟，不过部分试飞员反应对大幅减重的结构不放心，因此最后都未进入量产。

2023年11月3日 · xp-51f. 1943年7月20日，北美公司获得美国陆航的正式合同，制造5架轻型野马战斗机的原型机。这批飞机被赋予xp-51f的军方编号，美国陆航序列号为43-43332至43-43336xp-51f计划配备 罗尔斯-罗伊斯公司 的rm.14.sm发动机。在舒默德的英国之旅中，英国人答应为北美公 …

2023年7月24日 · 随后，这两架飞机被正式命名为 xp-51g ，与喷火 ⅩⅣ 相似的五叶木质罗托螺旋桨成为它们区别于 xp-51f 的外观特征，不过在试飞阶段后期该型号又重新采用较为传统的四叶螺旋桨。

The North American P-51 Mustang was arguably the most successful — and most versatile — fighter of World War II. Designed in 1940 for use by Great Britain, the first prototype XP-51 was finished in just 117 days.

2024年8月15日 · The XP-51F was a lighter and even faster version of the Mustang, designed as an experimental model to push the performance boundaries of the Mustang series. It featured a redesigned fuselage, an upgraded engine, and a reduction in armament to save weight, enhancing speed and altitude capabilities.