The YF-20 is a Chinese liquid-fuel rocket engine burning N 2 O 4 and UDMH in a gas generator cycle. It is a basic engine which when mounted in a four engine module forms the YF-21. The high altitude variation is known as the YF-22 is normally paired with the YF-23 vernier to form the YF-24 propulsion module for second stages.

YF-20 是一种常温基础型发动机，采用泵压式输送系统，燃料为偏二甲肼/四氧化二氮作为推进剂组合，能够产生70吨级的推力。 由YF-20发动机发展而来的YF-20系列发动机和由4台YF-20系列发动机并联形成的 YF-21 系列发动机被 长征二号 系列、 长征三号 系列、 长征四号 系列等几乎所有“老长征”火箭所采用。 YF-20 发动机，包含YF-20A、 YF-20B 、YF-20C、YF-20K等多个改型。 …

Oct 30, 2024 · The L-20 is a point-and-shoot camera for 35mm film, introduced by Japanese manufacturer Ricoh in 1989. It is also known as the YF-20 Super or the One Take Easy II.

The YF-20 is a Chinese liquid-fuel rocket engine burning N 2 O 4 and UDMH in a gas generator cycle. It is a basic engine which when mounted in a four engine module forms the YF-21. The high altitude variation is known as the YF-22 is normally paired with the YF-23 vernier to form the YF-24 propulsion module for second stages.

Oct 15, 2024 · Point and shoot compact camera for 35mm film with integral flash and fixed focus, manufactured in Taiwan for Ricoh in 1987. Although the manual describes the camera as " Exposure Adjustment: With CdS Photocell ", the aperture is …

Oct 15, 2024 · The YF-20N is a fixed-focus point-and-shoot camera introduced by Japanese manufacturer Ricoh in 1997. A version with a databack was also available and it was sold as the YF-20N Date.

Feb 18, 2021 · Ricoh YF-20 is a plastic body focus-free point-and-shoot camera with a built-in flash, motorized film transport, 1/125s fixed shutter and a 35mm 𝒇4 Ricoh coated glass lens (three elements in three groups).

Jan 22, 2025 · With an ISO range from 100-1000, the Ricoh YF-20N allows you to capture images in varied light conditions. Additionally, this Ricoh camera features advanced film loading options that allows you to advance and rewind the film automatically.

YF-20A Beijing Wan Yuan N2O4/UDMH rocket engine. Out of production. Boosted CZ-2A, CZ-2C, CZ-2E(A), CZ-3, FB-1. First flight 1972.

Oct 23, 2017 · Stylistically the YF-20 is nice enough a late 80’s plastic brick. Not a million miles different from the Ricoh FF-9 with a swings out 90º flash. The lens cover fires open at speed with a satisfying but loud clunk (covering the ISO settings).

Fixed focus 35mm point-and-shoot camera released by Ricoh. The camera has a single shutter speed and adjustable aperture via the ISO controls. Plastic body available in gray. Lens: Ricoh 35mm f4 Rikenon ISO range: 100 - 1000 Size: 121 x 67 x 45 mm Weight: 222g.

Point and shoot compact camera for 35mm film with integral flash and fixed focus, manufactured in Taiwan for Ricoh in 1987. Fixed focus (from 1m-infinity) with infinity lock button. Automatic aperture control via a CdS meter. Integrated pop-up flash with working range of 1-4m. (GN:10, recharge 6s). Film automatically advances and rewinds.

Oct 15, 2024 · The YF20-E is a fixed-focus point-and-shoot camera [1] introduced by Japanese manufacturer Ricoh in 1997. A version with a databack was also available and it was sold as the YF20-E Date.

Jan 14, 2025 · Thus far, the YF-20 looks superb, with no unseemly joins, heavy-handed panel lines, or noticeable differences between the replica and the aircraft it portrays. The model looks true-to-form in virtually every aspect and even some of the most ardent rivet-counters are beginning to take notice and recognize its uncanny appearance to the real aircraft.

The YF-20 is a Chinese liquid-fuel rocket engine burning N 2 O 4 and UDMH in a gas generator cycle. It is a basic engine which when mounted in a four engine module forms the YF-21. The high altitude variation is known as the YF-22 is normally paired with the YF-23 vernier to form the YF-24 propulsion module for second stages.

The YF-20 is a Chinese liquid rocket engine burning N 2 O 4 and UDMH in an gas generator cycle. It is a basic engine which when mounted in a four engine module forms the YF-21. The high altitude variation is known as the YF-22 is normally paired with the YF-23 vernier to form the YF-24 propulsion module for second stages.

TESTED AND FULLY WORKING: Ricoh YF-20 35mm Point and Shoot Film Camera 35mm f/4 fixed focus lens Fixed mechanical shutter speed 1/125s; Integrated pop-up flash film automatically advances and rewinds; You'll need to require 35mm film and AA batteries

The Ricoh YF-20 is an easy to use and simple re-useable point and shoot camera perfect for beginners. This camera is fully automatic and equipped with a quality f/4.5 lens able to take great quality photos.

Fixed focus 35mm point-and-shoot camera released by Ricoh. The camera has a single shutter speed and adjustable aperture via the ISO controls. Plastic body available in gray. Lens: Ricoh 35mm f4 Rikenon ISO range: 100 - 1000 Size: 121 x 67 x 45 mm Weight: 222g.

Oct 15, 2024 · The YF-20X is a fixed-focus point-and-shoot camera for 35mm film, introduced by Japanese manufacturer Ricoh in 1993. A version with a databack was also available and it was sold as the YF-20X Date.

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